Consulta: subjectFacets:"Carotenoids"
Registros recuperados: 64
Data/hora: 05/06/2024 07:56:26

Cuantificación de flavonoides y carotenoides en variedades de caléndula (Calendula officinalis L.) y descriptores varietales.
Provedor de dados: 32
Autores: Palma Tenango, Mariana.
Caléndula (Calendula officinalis L.) es una planta herbácea anual que destaca por los usos medicinales de sus capítulos (flores). En esta especie se ha demostrado diversidad genética y de composición química entre variedades. En México no se cultivan diferentes variedades ni se ha investigado la variación posible en el rendimiento de capítulos, concentración de flavonoides y carotenoides en función de la variedad y de cortes, como es el efecto causado por cosechas continuas de los capítulos florales. El objetivo de este estudio fue determinar el rendimiento, concentración de flavonoides y carotenoides en seis variedades de caléndula aquí seleccionadas, cuyos capítulos fueron cosechados a lo largo de siete cortes en 2010 y de nueve cortes en 2011, de...
Palavras-chave: Caléndula; Flavonoides; Carotenoides; Descripción varietal; Pot marigold; Flavonoids; Carotenoids; Description varietal; Fisiología vegetal; Doctorado.
Ano: 2014
URL: http://hdl.handle.net/10521/2274

Isolation and characterization of hydrocarbon producing green alga Botryococcus braunii from Indian freshwater bodies
Provedor de dados: 69
Autores: Dayananda,Chandrappa; Sarada,Ravi; Kumar,Vinod; Ravishankar,Gokare Aswathanarayana.
Samples of green colonial unicellular microalga Botryococcus braunii were collected from Bear Shola Falls at Kodaikanal (latitude 10.31 N and longitude 77.32 E), Tamil Nadu, India. Specimens were isolated, cultured and examined for its hydrocarbon content, morphological features and DNA structural resemblance with the known strain to confirm its identity. Inter simple sequence repeats (ISSR) finger printing revealed strong genetic similarity among the authentic strain (B. braunii N-836) and the Indian isolated strain (B. braunii CFTRI- Bb1) from Kodaikanal. The type of hydrocarbons produced by the Kodaikanal isolates were analyzed and identified as saturated hydrocarbons in the range of C21 to C33 by GCMS. Tetracosane and octacosane were found as the major...
Tipo: Journal article
Palavras-chave: Biomass; Carbon dioxide; Carotenoids; Fatty acids; Inter simple sequence repeats; Saturated hydrocarbons.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000100008

QUALITY OF CAGAITA POWDER BY FOAM LAYER DRYING METHOD AND DIFFERENT FOAMER AGENTS
Provedor de dados: 70
Autores: Cavalcante,Maisa D.; Belisário,Celso M.; Oliveira,Daniel Emanuel C. de; Maia,Geisa Priscilla A. G.
ABSTRACT One of the factors that hinder the usability of Cerrado fruits is their perishable nature, requiring industrial processing to ensure prolonged shelf life. This study aims to determine the optimal foaming agent for industrial processing of this fruit, and to evaluate the physicochemical characteristics and antioxidant activity of dried cagaita powder (Eugenia dysenterica DC) in foam layers at temperatures of 40, 50, 60, and 70 °C. The effectiveness of three foaming agents at various concentrations were tested, and suitable agents were identified based on a factorial analysis of density, expansion, and stability. The physicochemical characteristics of the powder, along with its vitamin A and C and total carotenoid content and antioxidant activity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado fruits; Cagaita powder; Bioactive compounds; Antioxidant activity; Vitamin C; Vitamin A; Carotenoids; Foam layer drying.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300381

Transcriptomics analysis of Psidium cattleyanum Sabine (Myrtaceae) unveil potential genes involved in fruit pigmentation
Provedor de dados: 74
Autores: Vetö,Nicole M.; Guzman,Frank; Kulcheski,Franceli R.; Segatto,Ana Lúcia A.; Lacerda,Maria Eduarda G.; Margis,Rogerio; Turchetto-Zolet,Andreia C.
Abstract Psidium cattleyanum Sabine is an Atlantic Forest native species that presents some populations with red fruits and others with yellow fruits. This variation in fruit pigmentation in this species is an intriguing character that could be related to species evolution but still needs to be further explored. Our goal was to provide genomic information for these morphotypes to understand the molecular mechanisms of differences in fruit colour in this species. In this study, we performed a comparative transcriptome analysis of red and yellow morphotypes of P. cattleyanum, considering two stages of fruit ripening. The transcriptomic analysis performed encompassing leaves, unripe and ripe fruits, in triplicate for each morphotype. The transcriptome...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthocyanin; Atlantic Forest; Carotenoids; Fruit ripening; Myrtaceae.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400803

1-Methylcyclopropene delays tomato fruit ripening
Provedor de dados: 75
Autores: Moretti,Celso Luiz; Araújo,Alessandra L.; Marouelli,Waldir Aparecido; Silva,Washington Luiz C.
Tomato (Lycopersicon esculentum Mill.) fruits, cv. Santa Clara, were harvested at the breaker stage from commercial fields in Brazlândia, Brazil, to investigate the ability of 1-methylcyclopropene (1-MCP) to retard tomato fruit ripening. Fruit without external blemishes were graded for size (diameter = 80±5 mm) and mass (m = 130±10 g), placed inside hermetically sealed boxes, and 1-MCP was applied for 12 hours (T = 22±1°C; RH = 80-85%) at four different concentrations: 0 (control), 250, 500 and 1000 mL.L-1. Fruits were held at ambient conditions (T = 23±2°C; RH 80-85%) for 2 days and then stored inside a cold room (T = 20±1°C; RH = 85-95%). Every 3 days, during a 15-day period, fruits were analyzed for firmness, total soluble solids, titratable acidity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Acidity; Color; Carotenoids; Ethylene; Firmness; Postharvest.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000400030

Production and quality of carrot in function of split application of nitrogen doses in top dressing
Provedor de dados: 75
Autores: Colombari,Lidiane F; Lanna,Natália BL; Guimarães,Leysimar RP; Cardoso,Antonio Ismael Inácio.
ABSTRACT Fertilizers supply in the appropriate period and dose is important to obtain satisfactory production. In this research we studied the effect of different split applications and doses of nitrogen in top dressing on the production of the carrot and the physicochemical characteristics of the roots. Nine treatments, resulting from a factorial of 4x2+1 (control without nitrogen fertilization), were evaluated in the randomized blocks experimental design, with four replications. The first factor were four nitrogen (N) doses in top dressing (60, 90, 120 and 150 kg ha-1) and the second were two forms of splitting [three equal applications (1/3+1/3+1/3 of the dose) and one with increasing proportions (1/6+2/6+3/6 of the dose) applied 15, 30 and 50 days...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daucus carota; Carotenoids; Fertilization; Root quality; Yield.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300306

Effect of salicylic acid on pre-transplant acclimatization of native tomato populations
Provedor de dados: 75
Autores: Poot-Poot,Wilberth A; Delgado-Martínez,Rafael; Castro-Nava,Sergio; Segura-Martínez,Ma Teresa; Carreón-Pérez,Alejandro; Hernández-Martínez,Jesús Guillermo.
ABSTRACT The aim of this study was to evaluate the effect of salicylic acid (SA) application on pre-transplant acclimatization of native populations of tomato. SA is a growth regulator that modifies plant growth and development by inducing changes in cell processes, physiology and morphology. Five populations of native tomato were sown in polystyrene trays. Peat moss was used as substrate and plants were maintained at field capacity continuously. After emergence, seedlings were applied during three weeks with different concentration of SA (0.0, 0.01, 0.1, 0.5 and 1.0 μM). A completely random experimental design was used with five replications per treatment. The growth parameters evaluated were height, stem diameter, number of leaves, hypocotyl length,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Stress tolerance; Chlorophyll; Carotenoids; Growth regulators.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400480

Effect of biostimulant application and long-term storage on the nutritional value of carrot
Provedor de dados: 75
Autores: Wszelaczyńska,Elżbieta; Szczepanek,Małgorzata; Pobereżny,Jarosław; Kazula,Maciej J.
ABSTRACT The nutritional value of carrot is determined by the content of total sugars and monosaccharides, carotenoids and vitamins, including vitamin C, in its roots. In 2009-2011, field experiments were carried out concerning the effect of biostimulating preparations applied during the carrot vegetation period on selected nutrients of its roots (total sugars, monosaccharides, carotenoids and vitamin C). Two biostimulants were foliarly applied in doses of 2 or 3 L ha-1 on various dates. Kelpak SL and Asahi SL: one, two or three applications; where, second and third applied at 2-week interval, additionally Kelpak SL: one application at 4-leaf phase, followed by additional application after 4 weeks. The field study was conducted in a randomized block design...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daucus carota; Ecklonia maxima; Seaweed; Carotenoids; Vitamin C.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400451

Сравнительная оценка содержания и состава каротиноидов в тканях различных цветовых морф Mytilus galloprovincialis Lam.
Provedor de dados: 13
Autores: Бородина, А. В.; Солдатов, А. А.
The peak carotenoid concentration has been found in gepatopancreas. Six carotenoids (P-carotene, pectenolone, alloxanthin-diatoxanthin complex, mytiloxanthin, pectenol A) have been identified. Tissual specificity in their content has been determined. The concentration and diversity of carotenoids decreased in the series: black morph Q black-brown morph Q brown morph.
Tipo: Book Section
Palavras-chave: Carotenoids; Tissues; Colour morphs; Mytilus galloprovincialis Lam.
Ano: 2010
URL: http://repository.ibss.org.ua/dspace/handle/99011/1841

Содержание каротиноидов в системе "взвешенное вещество - мидия (Mytilus galloprovincialis Lmk. ) - биоотложения мидий"
Provedor de dados: 13
Autores: Поспелова, Н. В.; Нехорошев, М. В.
Исследованы количественный и качественный состав каротиноидов в различных органах мидии Mytilus galloprovincialis Lmk. (гонадах, жабрах, гепатопанкреасе, остальных тканях), во взвешенном веществе как кормовой базе мидий и в фекалиях мидий. Показано, что гонады, жабры и остальные ткани содержат 5 основных каротиноидов, качественный состав которых определен. Гепатопанкреас содержит от 9 до 15 каротиноидов, но не все пигменты идентифицированы. Проведены предварительные балансовые исследования потока каротиноидов из пищи мидии в биоотложения. Рассчитана усвояемость каротиноидов мидией.
Tipo: Journal Contribution
Palavras-chave: Mytilus galloprovincialis Lmk.; Каротиноиды; Взвешенное вещество; Усвояемость; Биоотложения мидий; Biodeposites of mussels; Carotenoids; Suspended substance Carotenoids Suspended organic matter Carotenoids http://aims.fao.org/aos/agrovoc/c_1333.
Ano: 2003
URL: http://repository.ibss.org.ua/dspace/handle/99011/546

Выращивание Dunaliella tertiolecta Butch. на модифицированной среде Ben–Amotz
Provedor de dados: 13
Autores: Бородина, А. В.; Дробецкая, И. В.
Предложен способ культивирования Dunaliella tertiolecta Butch. на модифицированной питательной среде Ben-Amotz при полной замене гидрокарбоната натрия на NaOH. Источником углерода для микроводорослей служат гидрокарбонат-ионы, образующиеся в щелочной среде из СО2 воздуха. Приведены ростовые и биохимические показатели дуналиеллы в условиях как частичного, так и полного исключения соды из состава среды. http://biotex.ibss.org.ua/
Tipo: Journal Contribution
Palavras-chave: Углеродное питание; Dunaliella tertiolecta; Питательная среда Ben–Amotz; Пигменты; Каротиноиды; Carbon feed; Medium of Ben-Amotz; Pigments; Carotenoids.
Ano: 2010
URL: http://repository.ibss.org.ua/dspace/handle/99011/1742

Каротиноиды в красной соли гиперсолёного Кояшского озера (Крым: Чёрное море): предварительное сообщение.
Provedor de dados: 13
Autores: Шадрин, Н. В.; Дробецкая, И. В.; Чубчикова, И. Н.; Терентьева, Н. В.
Определено содержание каротиноидов в красной соли Кояшского озера – около 40 г на 1 м2 поверхностного 1-сантиметрового слоя. Проанализирован каротиноидный состав соли; 94 % каротиноидов приходится на β-каротин. При микроскопическом исследовании соли выявлено обилие цист Dunaliella.
Tipo: Journal Contribution
Palavras-chave: Гиперсолёные озера; Красная соль; Каротиноиды; Dunaliella; Галобактерии; Hypersaline lakes; Red salt; Carotenoids; Dunaliella; Halobacteria; Галобактерії; Гіперсолоні озера; Червона сіль; Каротиноїди.
Ano: 2008
URL: http://repository.ibss.org.ua/dspace/handle/99011/835

Баланс  каротиноидов  и  a-токоферола  мидий,  культивируемых  у берегов Крыма
Provedor de dados: 13
Autores: Поспелова, Н. В.
Рассчитаны пометы суточного баланса БАВ (каротиноидов и а-токоферола) культивируемых мидий в зависимости от сезона. Все элементы баланса по БАВ имеют сходную структуру. Макси­мальные траты вещества приходятся на дыхание, а доля трат на соматический рост превышает долю трат на генеративный рост. Усвоение а-токоферола превышает усвоение каротиноидов, что свидетельствует о высокой потребности мидий, проходящих преднерестовую стадию, в витамине Е, как и в каротиноидах. Годовые величины эффективности использования каротиноидов на про­дукцию черноморских мидий (К2) изменяются от 0,03 до 0,56, для а-токоферола коэффициент К2 составил 0,01 в летний период.
Tipo: Journal Contribution
Palavras-chave: Carotenoids; Carotenoids; Http://aims.fao.org/aos/agrovoc/c_1333.
Ano: 2007
URL: http://repository.ibss.org.ua/dspace/handle/99011/613

Diversidade genética de acessos de maracujás-do-cerrado com base na concentração e presença de carotenoides (2009).
Provedor de dados: 14
Autores: WONDRACEK, D. C.; FALEIRO, F. G.; JUNQUEIRA, N. T. V.; AGOSTINI-COSTA, T. da S.
bitstream/item/78150/1/p2009-040.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Compostos bioativos; Indigenuous organisms.; Passiflora; Carotenoids; Passion fruits; Varieties.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737107

Processamento de polpas e sucos de frutas por processos com membranas.
Provedor de dados: 14
Autores: CABRAL, L. M. C.; CANDÉA, I. V.; CANDÉA, T. V.; MECENAS, A. S.; PINTO, T. de M.; MATTA, V. M. da.
bitstream/item/74990/1/pub-204.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Polpa de cajá; Suco de amora; Microfiltração; Suco de melão; Osmose inversa; Tecnologia de membrana; Clarification.; Carotenóide; Processamento; Spondias Mombin.; Microfiltration; Carotenoids; Fruit juices; Melons; Blackberries; Processing technology.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/874618

Dosage des carotenoides de la macrofaune benthique par spectrometrie d'adsorption visible
Provedor de dados: 5
Autores: Merlin, J; Noel, Philippe; Lafageoe-szydlowski, S; Petitt-cossi, G; Wallart, F.
The resonance Raman spectrometry allows the determination carotenoid composition. This method has many advantages in particular to analyse a non-purified solution without measuring the other constituents. The application of this technique is used for benthic macrofauna studies.
Tipo: Text
Palavras-chave: Comparative studies; Absorption spectroscopy; Zoobenthos; Carotenoids.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1307.pdf

Proteomic Analysis of the Chlorophyta Dunaliella New Strain AL-1 Revealed Global Changes of Metabolism during High Carotenoid Production
Provedor de dados: 5
Autores: Ben Amor, Faten; Elleuch, Fatma; Ben Hlima, Hajer; Garnier, Matthieu; Saint-jean, Bruno; Barkallah, Mohamed; Pichon, Chantal; Abdelkafi, Slim; Fendri, Imen.
The green microalgae Dunaliella genus is known for the production of high added value molecules. In this study, strain AL-1 was isolated from the Sebkha of Sidi El Hani (Sousse, Tunisia). This isolate was identified both morphologically and genetically via 18S rRNA gene sequence as a member of the genus Dunaliella. Strain AL-1 was found to be closely related to Dunaliella salina, Dunaliella quartolecta and Dunaliella polymorpha with more than 97% similarity. Response surface methodology was used to maximize carotenoid production by strain AL-1 by optimizing its growth conditions. The highest carotenoid content was obtained at salinity: 51, light intensity: 189.89 μmol photons·m−2·s−1, and nitrogen: 60 mg·L−1. Proteomic profiling, using two-dimensional gel...
Tipo: Text
Palavras-chave: Proteome; Dunaliella; 18S rRNA gene; Carotenoids; Bidimensional gel electrophoresis; Mass spectrometry.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00402/51398/51973.pdf

Effect of Bentazon on Growth and Physiological Responses of Marine Diatom: Chaetoceros gracilis
Provedor de dados: 5
Autores: Hourmant, Annick; Amara, Anis; Pouline, Patrick; Durand, Gael; Arzul, Genevieve; Quiniou, Francoise.
The herbicide bentazon (CASRN 25057-89-0) is extensively used in agriculture in Brittany (France) to replace atrazine. Bentazon is not readily adsorbed by soil and therefore it enters adjacent freshwater ecosystems, making its way to estuarine and marine waters areas. Information regarding its effects on marine ecosystems is scarce. Phytotoxicity assessments were conducted in the laboratory on the common diatom Chaetoceros gracilis using both the active ingredient and its formulated product (Basamais). The 3 day EC50 Using cell counts were, respectively, 150 mg/L and 60 mu g/L for bentazon active ingredient and for bentazon-formulated while cellular volume was increased. Although bentazon is known as a photosystem II inhibitor, it produced an increase of...
Tipo: Text
Palavras-chave: Photosynthesis; Marine diatom; Growth; Chlorophylls; Chaetoceros gracilis; Carotenoids; Bentazon; ATP.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6637.pdf

Les variations quantitatives des carotenoides de la macrofaune benthique en Baie de Seine, ont-elles des relations avec la pollution ou l'ecologie des especes?
Provedor de dados: 5
Autores: Noel, Philippe; Merlin, J; Lafage-szydlowski, S; Hubert, M; Chassard-bouchaud, C.
Macular skin affects in relation to pollution have been displayed, but the analysis shows carotenoid variations between organisms living in rocky bottom or in muddy sand area.
Tipo: Text
Palavras-chave: Sublethal effects; Ecology; Pollution tolerance; Pollution effects; Benthos; Carotenoids.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1308.pdf

Pigmentos carotenoides del camarón Artemesia longinaris Bate (Crustacea, Decapoda, Penaeidae)
Provedor de dados: 20
Autores: Carreto, J.I.; Carignan, M.O.
Caronetoids from caparace and internal organs of Artemesia longinaris were isolated and identified. The following carotenoid pigments were found in caparace: luteine, tunaxanthin diester, astaxanthin monoester and free astaxanthin. A much greater variety of pigments was isolated from internal organs: Ó- doradexanthin, a fucoxanthin derivate, chlorophylls degradation products and various xanthophylls in trace amounts. These pigments are of dietary origin. In the natural environment, A.longinaris takes preformed astaxanthin from the diet and transfers it to body tissues.
Tipo: Journal Contribution
Palavras-chave: Pigments; Carotenoids; Absorption spectra; Pigments; Carotenoids; Http://aims.fao.org/aos/agrovoc/c_5875; Http://aims.fao.org/aos/agrovoc/c_1333.
Ano: 1984
URL: http://hdl.handle.net/1834/2048

Determinación de los principales carotenoides de la guayaba (Psidium guajava l.)
Provedor de dados: 20
Autores: Ventosa, M.; Rodríguez, J. L.; Zerqueira, O. L.
El objetivo del presente trabajo comprendió la identificación y cuantificación de los principales carotenoides presentes en la guayaba (Psidium guajava L). Se tomaron 7 muestras obtenidas en diferentes mercados de La Habana. La separación y cuantificación se realizó mediante cromatografía de columna abierta, combinada con espectrofotometría visible. El estudio de recobrado para los carotenoides presentes osciló entre 89 y 96 %. Se identificaron y cuantificaron como carotenoides mayoritarios:  fitoflueno, β-caroteno y  licopeno, con una concentración promedio de 2,0 µg/g; 2,1 µg/g y 44,1 µg/g, respectivamente.
Tipo: Journal Contribution
Palavras-chave: Carotenoids.
Ano: 2008
URL: http://hdl.handle.net/1834/4722

&lt;i&gt;cis&lt;/i&gt;-Canthaxanthins: unusual carotenoids in the eggs and the reproductive system of female brine shrimp &lt;i&gt;Artemia&lt;/i&gt;
Provedor de dados: 27
Autores: Nelis, H.J.C.F.; Lavens, P.; Moens, L.; Sorgeloos, P.; Jonckheere, J.A.; Criel, G.R.J.; De Leenheer, A.P.
The significance of carotenoid accumulation in crustacean eggs remains obscure, particularly because neither eggs nor female animals have been found to display specific pigment patterns in relation to reproduction. We report here the first example of carotenoids found exclusively in the ovaries, the eggs, and the hemolymph, but not in the carcass of a female, reproductively active crustacean, i.e. the brine shrimp &lt;i&gt;Artemia&lt;/i&gt; . These pigments are virtually absent in males and in immature animals and disappear very rapidly in growing nauplii following hatching of encysted embryos. Within the cysts, they are preferably localized in the yolk platelets. We have identified them as mono-&lt;i&gt;cis&lt;/i&gt;-canthaxanthins on the basis of their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal reproductive organs; Brine shrimp eggs; Carotenoids; Artemia.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3269

Low temperature impact on photosynthetic parameters of coffee genotypes
Provedor de dados: 86
Autores: Partelli,Fábio Luiz; Vieira,Henrique Duarte; Viana,Alexandre Pio; Batista-Santos,Paula; Rodrigues,Ana Paula; Leitão,António Eduardo; Ramalho,José Cochicho.
The objective of this work was to evaluate photoprotective mechanisms related to low positive temperatures in Coffea canephora (Conilon clones 02 and 153) and C. arabica ('Catucaí' IPR 102) genotypes, involved in cold temperature tolerance. To accomplish this, one-year-old plants were successively submitted to: temperature decrease of 0.5ºC day-1, from 25/20ºC to 13/8ºC; a three-day chilling cycle at 13/4ºC; and a recovery period of 14 days (25/20ºC). During the experiment, leaf gas exchange, chlorophyll a fluorescence and leaf photosynthetic pigment content were evaluated. Total activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and ribulose-5-phosphate kinase (Ru5PK) were quantified to measure the activity of photosynthesis key...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea; Carotenoids; Photoprotection; Photosynthesis; Rubisco.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009001100006

Contents of Pigments and Activity of Antioxidant Enzymes in Rice Plants Pre-Treated with Sodium Nitroprusside and Exposed to Clomazone
Provedor de dados: 87
Autores: SILVA,K.S.; TABALDI,L.A.; ROSSATO,L.V.; CAVICHIOLI,B.M.; BASÍLIO,V.B.; MACHADO,S.L.O.
ABSTRACT: The pre-treatment of rice seeds with sodium nitroprusside (SNP) was used to investigate the effect of exogenous nitric oxide on the pigment content and the activity of antioxidant enzymes during the inhibition of the 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway by the herbicide clomazone. The seeds were soaked in SNP solution (200 mM) for one and 10 hours and sprayed with clomazone, at post-seeding and at the needle-point, with 612 (experiment 1) and 1,224 g a.i. ha-1 (experiment 2). The control of both factors received distilled water. Carotenoids, chlorophylls a, b and total, superoxide dismutase (SOD), guaiacol peroxidase (POD) and the correlation between the variables were evaluated in the shoot of the plants. When compared to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorophyll; Carotenoids; Oryza sativa; Superoxide dismutase; Guaiacol peroxidase.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100231

Atrazine and Mesotrione-Induced Oxidative Stress and Impact on Antioxidant Enzymes and Chlorophyll Contents in Bermudagrass
Provedor de dados: 87
Autores: WANG,Y.; YU,J.; ZHOU,B.; SAPKOTA,S.; WEI,F.; WANG,Z.
ABSTRACT: The effect of atrazine, mesotrione, and joint activity of atrazine plus mesotrione on pigment, lipid peroxidation, and antioxidant enzyme activity was studied. Atrazine and mesotrione treatments significantly reduced chlorophyll a (Chl a), chlorophyll b (Chl b), carotenoid concentrations, and protein content in bermudagrass (Cynodon dactylon L.) plants, whereas they significantly enhanced lipid peroxidation. The treatment of atrazine plus mesotrione caused greater phototoxic effect on bermudagrass than either herbicide alone, which was evident from the significantly decreased membrane stability noted as a function of the enhanced singlet oxygen and malondialdehyde (MDA) contents, as well as from the greater reduction in Chl a, Chl b, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Carotenoids; Herbicide; Reactive oxygen species.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100337

Determination of photosynthetic pigments in fleabane biotypes susceptible and resistant to the Herbicide Glyphosate
Provedor de dados: 87
Autores: Kaspary,T.E.; Lamego,F.P.; Cutti,L.; Aguiar,A.C.M.; Bellé,C.
Chlorophylls and carotenoids are the main photosynthetic pigment in plants. In the weeds, the greatest amount of photosynthetic pigments can result in high competitiveness of the species. The aim of this study was to quantify the content of photosynthetic pigments in biotypes of fleabane (Conyza bonariensis) susceptible and resistant to glyphosate, by two different methods, as well as a correlation between chlorophyll content obtained by portable and classical methodology (extractable chlorophyll). An experiment was conducted in greenhouse and laboratory, 2 x 5 factorial scheme, where factor A was equivalent to biotypes of fleabane (resistant and susceptible to glyphosate) and factor B to developmental stages plants (rosette vegetative I, II and III and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conyza bonariensis; Chlorophyll; Carotenoids; Resistance.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200020

The Effect of Lycopene Addition on the Chemical Composition, Sensory Attributes and Physicochemical Properties of Steamed and Grilled Turkey Breast
Provedor de dados: 89
Autores: Skiepko,N; Chwastowska-Siwiecka,I; Kondratowicz,J; Mikulski,D.
ABSTRACT The aim of this study was to determine the effect of lycopene addition to the curing mixture for steamed and grilled breast muscles on the chemical composition, sensory attributes and physicochemical parameters of the final products. The experimental material comprised a total of 48 breast muscles of Hybrid XL turkeys aged 15 weeks and fed commercial pelleted diets. The material was divided into three groups (control, experimental groups I and II). Sixteen breast muscles (8 left and 8 right) were assigned to each group. Control group samples were immediately transported to a laboratory. The remaining 32 muscles were steamed and grilled, where 16 samples were cured before heat treatment. The curing brine contained tomato peel extract standardized...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; Lycopene; Poultry; Quality of meat; Final product.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000200319

The Effects of Different Types of Antioxidants (Se, Vitamin E and Carotenoids) in Broiler Diets on the Growth Performance, Skin Pigmentation and Liver and Plasma Antioxidant Concentrations
Provedor de dados: 89
Autores: Karadas,F; Erdoğan,S; Kor,D; Oto,G; Uluman,M.
Abstract This study investigated the effects of the addition of different antioxidants to broiler diets on their live performance, liver antioxidant composition and concentrations, immune response, and meat and skin color. A total of 945 three-day-old Ross 308 broiler chicks of both genders were randomly allocated to one of nine dietary treatments (n=105), with three replicates 35 chicks per pen, as follows: T1: control (commercially available corn-and soybean-based broiler diet); T2: selenium (control+0.5 mg/kg Sel-PlexTMSe yeast); T3: vitamin E (control+200 mg/kg Kavimix-E-50 a-tocopherol acetate); T4: lutein (control+100 mg/kg 5% Lutein Beads XB); T5: lycopene (control+100 mg/kg 5% Lyco Beads XB);T6: canthaxanthin (control+25 mg/kg 10%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Antioxidants; Carotenoids; Performance; Immune response; Pigmentation.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100101

Nutritional quality of the epicarp and mesocarp flours of baru fruits submitted to drying
Provedor de dados: 91
Autores: Silva,Daiana V.; Oliveira,Daniel E. C. de; Resende,Osvaldo; Silva,Marco A. P. da; Barcelos,Keyla R.
ABSTRACT Baru (Dipteryx alata Vogel) is a native tree of the Cerrado. The drying and milling process can be an alternative for the use and conservation of baru fruits. The objective of this study was to evaluate the effect of drying on the nutritional characteristics of the epicarp + mesocarp flour of baru fruits. The fruits were collected in the municipality of Santa Helena de Goiás, Goiás, sanitized and submitted to drying in an oven with air circulation at temperatures of 40, 60, 80 and 100 ºC until they had a constant mass. The analyses were performed in triplicate and the results evaluated by analysis of variance and Tukey test (p ≤ 0.05). Flours produced from dehydrated fruits had a reduction in lipid content (treatments 100 °C), energy value (60 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dipteryx alata Vogel; Antioxidant activity; Phenolics; Carotenoids.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100065

Dual-stage sugar substitution in Tommy Atkins mango
Provedor de dados: 91
Autores: Medeiros,Rafael A. B. de; Barros,Zilmar M. P.; Carvalho,Carlos B. O. de; Coêlho,Antonio C. D.; Maciel,Maria I. S.; Azoubel,Patricia M.
ABSTRACT The dual-stage sugar substitution technique (D3S) was used to induce sugar replacement in mango. It involved two stages, in which high-calorie sugars were partially removed from the fruit samples in the first stage and, in the second one, low-calorie sugar was incorporated into the mango. Ultrasonic waves can be applied in one or both stages and their use was also evaluated in this study. Results showed that submitting samples to ultrasonic waves (25 kHz) in both stages and their immersion in Stevia-based solution (250 or 500 g kg-1) in the second stage for 10, 20 and 30 min of processing gave higher water loss during the process, while greater solids gain could be achieved by applying ultrasound only in the first stage. Samples were also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; Color; Mangifera indica; Phenolics; Preservation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100060

BIOACTIVE COMPOUNDS DURING THE MATURATION OF FOUR FRUITS NATIVE TO THE RESTINGA FOREST OF CEARA
Provedor de dados: 94
Autores: GONÇALVES,NIGÉRIA PEREIRA; LUCENA,ELISEU MARLÔNIO PEREIRA DE; BONILLA,ORIEL HERRERA; SILVEIRA,MÁRCIA RÉGIA SOUZA DA; TAVARES,FRANCISCA JÉSSICA COSTA.
ABSTRACT  Fruits provide not only essential nutrients for food, but also bioactive compounds that promote health benefits and help reducing the risk of developing non-communicable chronic diseases. In this sense, this work aimed at quantifying bioactive compounds during the maturation of four fruits native to the Restinga forest of Ceara. Myrtle fruits (Eugenia punicifolia (Kunth) DC.) were collected at the Botanical State Park of Ceara, Caucaia-CE, and guajiru (Chrisobalanus icaco L.), manipuça (Mouriri cearensis Huber) and murici-pitanga fruits (Byrsonima gardneriana A. Juss.) at the Botanical Garden of São Gonçalo, São Gonçalo do Amarante-CE. Fruits were collected at different stages (E) and transported to the Laboratory of Plant Ecophysiology, being...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascorbic acid; Chlorophyll; Carotenoids; Anthocyanins; Yellow flavonoids.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500303

Effect of industrial processing for obtaining guava paste on the antioxidant compounds of guava (Psidium guajava l.) ‘Paluma’ cv.
Provedor de dados: 94
Autores: Del’Arco,Ana Paula Wolf Tasca; Sylos,Célia Maria de.
Abstract  Some foods constituents are subject to change during thermal and/or industrial processing. In the fruit processing industry, guava pulp is used during guava off season to obtain guava paste, produced with the addition of sugar and citric acid, subjected to various thermal processes. This study evaluated the effect of industrial processing to obtain guava paste on the content of ascorbic acid, total carotenoids, total phenolic and total flavonoid present in guava ‘Paluma’ cv. The results showed that there was an increase of antioxidants in guava pulp (15% ascorbic acid, 59% total carotenoids, 8% total phenolics and 54.5% total flavonoids), probably due to their increased concentration as a result of water loss during processing. There was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascorbic Acid; Carotenoids; Phenolics; Antioxidant Activity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200901

Microencapsulation of pequi pulp oil by complex coacervation
Provedor de dados: 94
Autores: Justi,Priscilla Narciso; Sanjinez-Argandoña,Eliana Janet; Macedo,Maria Lígia Rodrigues.
Abstract  Pequi pulp oil, Caryocar brasiliense, is rich in carotenoids, antioxidant compound easily oxidized by the presence of heat, light and oxygen. In order to improve its stability, pequi oil was microencapsulated by complex coacervation using gelatin and Arabic gum as encapsulating agents. Twenty formulations were prepared using a 23 central composite rotational design. The influence of temperature, stirring velocity and core material in the oil coacervation were evaluated, aiming to preserve carotenoids present in the oil. The best yield values and carotenoids content were obtained at the midpoint of the design (7.5g core, 15.000rpm and 50°C). Particles showed asymmetric distribution, with diameter ranging from 15 to 145 µm and the efficiency of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caryocar brasiliense; Carotenoids; Retention.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200904

Bioactive compounds and antioxidant activity three fruit species from the Brazilian Cerrado
Provedor de dados: 94
Autores: Moreira-Araújo,Regilda Saraiva dos Reis; Barros,Nara Vanessa dos Anjos; Porto,Rayssa Gabriela Costa Lima; Brandão,Amanda de Castro Amorim Serpa; Lima,Alessandro de; Fett,Roseane.
Abstract  The aim of this study was to determine the content of bioactive compounds and antioxidant activity present in three fruit species from the Brazilian Cerrado: carnauba (Copernicia prunifera (Mill.) H.E. Moore), murici (Byrsonima crassifolia L. Rich)and oiti (Licania tomentosa (Benth) Fritsch). Among analyzed fruits, oiti showed the highest total phenolic content (1236.42 ± 34.06 mg GAE 100 g-1) followed by murici (468.90 ± 27.30 mg GAE 100 g-1) and carnauba (314.44 ± 9.50 mg GAE 100 g-1). Regarding the antioxidant activity, murici showed 4350.31 ± 1.85 µmol TEAC.100 g-1 and oiti showed 14721.69 ± 0.85 µmol TEAC.100 g-1. In addition, high content of anthocyanins was verified in carnauba (9.35 ± 0.00 mg-cy-3-glu.100 g-1), as well as carotenoids...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Anthocyanins; Carotenoids; Phenolic compounds; Cerrado.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000300901

BIOACTIVE COMPOUNDS AND ANTIOXIDANT ACTIVITY OF PINEAPPLE FRUIT OF DIFFERENT CULTIVARS
Provedor de dados: 94
Autores: FERREIRA,ESTER ALICE; SIQUEIRA,HELOISA ELIAS; BOAS,EDUARDO VALERIO VILAS; HERMES,VANESSA STAHL; RIOS,ALESSANDRO DE OLIVEIRA.
ABSTRACT Pineapple is widely consumed and appreciated not only due to its taste and aroma, and also to its nutritional, functional and antioxidant properties, including its vitamin C and carotenoid contents. Brazil is one of the largest world’ pineapple producer, and Pérola and Smooth Cayenne cultivars are the most commonly grown and marketed, but their susceptibility to fusariosis can compromise cultivation. New cultivars resistant to this pathogen are available to meet the demands of pineapple producers and consumers. The aim of this study was to evaluate the content of bioactive compounds and antioxidant activity of pineapple fruits of Imperial, Victoria, IAC Fantástico and Gomo de Mel cultivars, as well as traditional Pérola and Smooth Cayenne...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ananas comosuse; Fusariosis; Vitamin C; Phenolics; Carotenoids.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300801

ANTIOXIDANT CAPACITY OF PEQUI (Caryocar brasiliense Camb.) PULP IS PRESERVED BY FREEZE-DRYING AND LIGHT-RESISTANT PACKAGING
Provedor de dados: 94
Autores: NASCIMENTO,NARA RÚBIA RODRIGUES DO; ALVES,ALINE MEDEIROS; SILVA,MARA REIS; NAVES,MARIA MARGARETH VELOSO.
ABSTRACT  Pequi (Caryocar brasiliense Camb.) pulp is rich in bioactive compounds. However, seasonality and perishability limit its availability in the market. This work aimed to determine the physicochemical characteristics, including phenolic compounds and carotenoid concentrations, as well as the antioxidant capacity of lyophilized pequi pulp during storage in various packaging materials for 180 days. Pequi fruits were pulped, ground, freeze-dried and then vacuum packaged in transparent polyethylene (TP), polyethylene coated by aluminum foil (PA) and laminated foil (LA), respectively. The samples were stored under controlled temperature, humidity and luminosity. Proximate composition, phenolic compounds and carotenoids concentrations, and antioxidant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Carotenoids; Caryocar brasiliense; Cerrado; Pequi.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000100901

Polymorphism of the BCO2 gene and the content of carotenoids, retinol, and α-tocopherol in the liver and fat of rabbits
Provedor de dados: 96
Autores: Strychalski,Janusz; Gugołek,Andrzej; Brym,Paweł; Antoszkiewicz,Zofia; Chwastowska-Siwiecka,Iwona.
ABSTRACT The study was carried out to evaluate the effect of AAT-deletion mutation at codon 248 of the BCO2 gene on the content of lutein, β-carotene, retinol, and α-tocopherol in the liver and fat of crossbred rabbits. The experimental animals comprised 90 rabbits, produced by reciprocal crossing between ins/del heterozygous parents of Flemish Giant, New Zealand Red, and Termond White breeds. All rabbits in the litter were genotyped, given the same diet, and finally slaughtered at 140 d of age. It was found that regardless of the mating scheme employed, all del/del homozygotes had the yellow fat trait, whereas heterozygous and homozygotes animals without the AAT deletion (ins/ins) developed white fat. Lutein concentration in fat was over 13-fold higher in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adipose tissue; Carotenoids; Rabbit; Vitamins.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100300

Stability of the pigmentation of egg yolks enriched with omega-3 and carophyll stored at room temperature and under refrigeration
Provedor de dados: 96
Autores: Barbosa,Vanessa Camarinha; Gaspar,Arlene; Calixto,Ligia Fátima Lima; Agostinho,Tarcísio Simões Pereira.
The objective of this experiment was to study yolk pigmentation stability in omega 3 (ω-3) enriched eggs stored under different temperatures in zeaxanthin equivalent (by using visible light spectrophotometer) and visual score (with values obtained by yolk color fan) and to verify the correlation among those methodologies. Three hundred big eggs from Isa Brown hens were distributed into two lots each one containing 150 eggs, stored at room temperature (26.5ºC) or under refrigeration (7.9ºC) for 35 days. It was used a completely randomized design in a 2 × 6 factorial arrangement (storage temperature × storage period). Pigmentation observed with the yolk color fan was steady during the experiment period when eggs were kept under refrigeration and it reduced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; Colour fan; Spectrophotometer; Yolk.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700020

Metabolites of interest for food technology produced by microalgae from the Northeast Brazil
Provedor de dados: 124
Autores: Sassi,Katharina Kardinele Barros; Silva,João Andrade da; Calixto,Clediana Dantas; Sassi,Roberto; Sassi,Cristiane Francisca da Costa.
ABSTRACT There is an increasing demand for bioprospection focusing on microalgae isolated from the northeastern region of Brazil with potential importance for food industries. To attend that need, we evaluated the characteristics of 12 regional species of microalgae grown under controlled cultivation conditions (temperature = 24 ± 1 ºC, illumination 150 µmol photons m-2 s-1, photoperiod of 12 h) in terms of their nutritional quality and lipid profiles. Significant differences in growth characteristics and chemical compositions were observed among the species investigated. High carbohydrate contents (&gt; 25 g 100 g-1) were recorded in various strains of Chlorococcum and the marine microalga Amphidinium carterae; high protein contents (&gt; 35 g 100 g-1)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyunsaturated fatty acids; Carotenoids; Omegas; Microalgae cultivation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100054

Quality and bioactive compounds in fruit of foreign accessions of mango conserved in an Active Germplasm Bank1
Provedor de dados: 124
Autores: Ribeiro,Thalita Passos; Lima,Maria Auxiliadora Coêlho de; Trindade,Danielly Cristina Gomes da; Lima Neto,Francisco Pinheiro; Ristow,Nara Cristina.
The aim of this study was to characterise the quality and levels of bioactive compounds in the fruit of 22 foreign accessions of the mango belonging to the Active Germplasm Bank of Embrapa Semiárido. Sixty fruits from each of the accessions: Florigon, Haden, 65, Irwin, M 13269, Momi-K, Scuper Many, Simmonds, Tommy Atkins, Van Dyke, Winter, Zill, Amrapali, Olour, Aplle DCG 406, Mon Amon DCG 407, Black Java, Kensington, Chené, Manila, Manzanillo and Maya, were harvested upon reaching physiological maturity, one half being analysed when harvested and the other half stored at ambient temperature (25.4 ± 2.9 ºC and 41 ± 9% RH) until ripe. The experimental design was completely randomised in a 22 x 2 factorial (accession x maturity stage), with three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mango; Postharvest; Genetic resources; Vitamin C; Carotenoids.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100117

Cooking effects on bioactive compounds and sensory acceptability in pumpkin (Cucurbita moschata cv. Leite)
Provedor de dados: 124
Autores: Silva,Maria de Fátima Gomes da; Sousa,Paulo Henrique Machado de; Figueiredo,Raimundo Wilane; Gouveia,Sandro Thomaz; Lima,Jorgiane Silva Severino.
ABSTRACT The present study aimed to compare the changes in the bioactive compounds, color parameters and to determine consumer opinions through sensory analysis of the pumpkin using different cooking methods (boiling, steaming, microwaving and sous vide). The cooking methods reduced the ascorbic acid content (49.73-50.42%) and polyphenols (49.68-64.94%). Microwaving increased the carotenoid content by 24.58%. The brightness (L*), red color (a*) and yellow color (b*) were reduced and there was also the loss of vivid color (chroma). The color of samples was affected after cooking process. All cooking methods were well accepted by the tasters, representing different market niches and many consumers expressed the intention of purchasing these products. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Curcubita moscata; Total polyphenols; Carotenoids; Sensorial acceptance; Gastronomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300394

Critical review: cholesterol and fat-soluble vitamins on shrimp feeding
Provedor de dados: 22
Autores: Lima, Rodrigo Barbosa; Figueiredo-Lima, Denise Fontana.
Four types of poly unsaturated fatty acids (PUFA) are essential for all shrimp species, linoleic (LOA, 18:2n-6), alfa-linolenic (ALA, 18:3n-3), eicosapentaenoic (EPA, 20:5n-3) and docosahexaenoic (DHA, 22:6n-3) acids. Moreover, the arachidonic acid (ARA, 20:4n-6), even when present, seems to be, in crustaceans, not so important or yet dispensable. It is relevant knowing that cholesterol as much as PUFA are not well absorbed when not followed by a substantial amount of lecithin, reaching 5% of the ration. The sum of PUFA reaches around 3% of the diet, even varying according to the species, stage and ration type. For Penaeus monodon a complex mathematic model was formulated in order to describe the relationships between the requirements of the cited PUFA....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; Cholesterol; Fat-soluble vitamins; Nutritional requirement; Phospholipids; Syndromes.
Ano: 2017
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13996

L-ascorbic acid, β-carotene and lycopene content in papaya fruits (Carica papaya) with or without physiological skin freckles
Provedor de dados: 63
Autores: Souza,Leandro Marelli de; Ferreira,Karla Silva; Chaves,José Benício Paes; Teixeira,Sílvio Lopes.
The Skin Freckles is a papaya skin disorder that depreciates de fruit appearance and hampers its commercialization, although not lowering its nutritive value. Being the papaya a good source of ascorbic acid, β-carotene and licopene this research aimed at determining L-ascorbic acid, β-carotene and licopene content in papaya fruits, from 'Formosa' and 'Solo' group varieties, with and without apparent physiological skin disease (skin freckles). Fruits were harvested in the Southeast Region of Brazil. L-ascorbic acid content was determined by titration technique. β-carotene and licopene contents were determined by high performance liquid chromatography technique (HPLC). L-ascorbic acid content in papaya fruits ranged from (59.9 ± 3.4) mg 100 g-1 to (112.4 ±...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Fruits composition; Carotenoids; Vitamin C; Food composition.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000300004

Photosynthesis, growth, and survival in seedlings of four tropical fruit-tree species under intense radiation
Provedor de dados: 36
Autores: ORTIZ,Daniel; MORENO,Flavio; DÍEZ,Maria Claudia.
ABSTRACT In the Amazon region, agroforestry systems (AFSs) are recommended as a sustainable production alternative for local communities. A common component in Amazonian AFSs are tropical fruit trees, which can form the canopy or grow in the understory. In this study, we evaluated the effect of high radiation on photosynthesis, growth and seedling survival of four Amazonian fruit-tree species: Theobroma cacao, Eugenia stipitata, Inga edulis and Psidium guajava. Growth, chlorophyll fluorescence, gas exchange, and leaf pigments were measured in seedlings of each species grown for 12 months inside shade houses with low (8%), medium (30%) and high relative illumination (100%). Eugenia stipitata and T. cacao had the lowest acclimation capacity to high solar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acclimation; Agroforestry systems; Carotenoids; Chloroplasts; Photosystem II.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100001

Non-destructive analysis of photosynthetic pigments in cotton plants - doi: 10.4025/actasciagron.v33i4.10926
Provedor de dados: 1
Autores: Brito, Giovani Greigh; Empresa Brasileira de Pesquisa Agropecuária; Sofiatti, Valdinei; Empresa Brasileira de Pesquisa Agropecuária; Brandão, Ziany Neiva; Empresa Brasileira de Pesquisa Agropecuária; Silva, Vivianny Belo; Empresa Brasileira de Pesquisa Agropecuária; Silva, Franklin Magnum; Empresa Brasileira de Pesquisa Agropecuária; Silva, Dalva Almeida; Empresa Brasileira de Pesquisa Agropecuária.
Analytical techniques used to extract chlorophyll from plant leaves are destructive and based on the use of organic solvents. This study proposes a non-destructive quantification of the photosynthetic pigment concentration in cotton leaves using two portable chlorophyll meters, the SPAD-502 and the CLOROFILOG 1030. After obtaining 200 leaf discs, each with an area of 113 mm2, the greening rate in each disc was determined by the average of five readings from both meters. Immediately after measurement, 5 mL of dimethyl sulfoxide (DMSO) was added, and the samples were kept in a water bath at 70ºC for 30 min. After cooling, 3 mL of the liquid extract was used for analyses by spectrophotometry at 470, 646 and 663 nm. Mathematical models were adjusted from...
Tipo: Pesquisa Empirica de Campo
Palavras-chave: Fisiologia de plantas cultivadas Gossypium hirsutum; Chlorophyll; Carotenoids; Cotton 5.01.03.06-7 Gossypium hirsutum; Chlorophyll; Carotenoids; Cotton.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/10926

Physiological characteristics of the Atlantic Forest native bromeliads: Nidularium campo-alegrense Leme and Aechmea ornata Baker  - doi: 10.4025/actascibiolsci.v36i1.20215
Provedor de dados: 3
Autores: Corredor Prado, Jenny Paola; Universidade Federal de Santa Catarina; Morales Londonõ, Diana Marcela; Universidade Federal de Santa Catarina; Almeida, Vivian; Universidade Federal de Santa Catarina; Brunetto, Gustavo; Universidade Federal de Santa Catarina; Pescador, Rosete; Universidade Federal de Santa Catarina.
Despite the ecological importance of bromeliads, the basic knowledge about the physiological aspects in some species is poorly understood. The aim of this study was to physiologically characterize the species Nidularium campo-alegrense Leme and Aechmea ornata Baker to contribute to a better understanding of their metabolic processes. From mature leaves of bromeliads N. campo-alegrense and A. ornata held at the Agricultural Sciences Center of the Federal University of Santa Catarina, it was quantified photosynthetic pigments, carbohydrates and starch, and determined stomata and trichome density. The chlorophyll and carotenoids content did not differ significantly between species. However, the total carbohydrates content of A. ornata (3.2 mg g-1 FM) was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.03.03.00-9 Bromeliaceae; Carbohydrates; Carotenoids; Chlorophyll Fisiologia vegetal.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/20215

Effect of processing on the physicochemical and sensory properties of mammee apple (Mammea americana L.) fruit
Provedor de dados: 115
Autores: Ordóñez-Santos,Luís E.; Martínez-Álvarez,Gloria M.; Vázquez-Riascos,Andrea M.
Mammee apple (Mammea americana L.) fruits are promising sources of various bioactive compounds such as carotenoids, vitamin C, and phenolic compounds, and offer great potential for use in agro-industrial processing and to meet the requirements desired for consumer health. The objective of this study was to evaluate physicochemical and sensory changes of mammee apple after syrup and jam processing. Fruits were washed, cut, pulped, blanched, and the pieces of fruit blanching were stored in 125 mL glass jars, and covered with 18 °Brix boiling sugar syrup. The mixture was pasteurized and cooled. Jam contained 50 % fruit, 50 % sugar, and 3 % pectin; sugar was added and the mixture boiled to a final concentration of 60 to 62 °Brix. The experimental design was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic fruit; Carotenoids; Ascorbic acid; PH; Dry matter.
Ano: 2014
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000400003

Yellow sweet potato flour: use in sweet bread processing to increase β-carotene content and improve quality
Provedor de dados: 42
Autores: NOGUEIRA,AMANDA C.; SEHN,GEORGIA A.R.; REBELLATO,ANA PAULA; COUTINHO,JANCLEI P.; GODOY,HELENA T.; CHANG,YOON K.; STEEL,CAROLINE J.; CLERICI,MARIA TERESA P.S.
ABSTRACT Yellow sweet potato is mostly produced by small farmers, and may be a source of energy and carotenoids in the human diet, but it is a highly perishable crop. To increase its industrial application, yellow sweet potato flour has been produced for use in bakery products. This study aimed to evaluate the technological quality and the carotenoids content in sweet breads produced with the replacement of wheat flour by 0, 3, 6, and 9% yellow sweet potato flour. Breads were characterized by technological parameters and β-carotene levels during nine days of storage. Tukey’s test (p&lt;0.05) was used for comparison between means. The increase in yellow sweet potato flour concentrations in bread led to a decrease of specific volume and firmness, and an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baking; Carotenoids; Tubers; Healthiness; Agribusiness.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100283

Post-harvest physicochemical profile and bioactive compounds of 19 bananas and plantains genotypes
Provedor de dados: 53
Autores: Borges,Cristine Vanz; Amorim,Edson Perito; Leonel,Magali; Gomez,Hector Alonzo Gomez; Santos,Thais Paes Rodrigues dos; Ledo,Carlos Alberto da Silva; Belin,Matheus Antônio Filiol; Almeida,Samara Lopes de; Minatel,Igor Otavio; Lima,Giuseppina Pace Pereira.
ABSTRACT Nineteen genotypes of bananas and plantains were analysed in order to differentiate the subgroups and/or groups of consumption or industrial use. Genotypes of banana and plantain from different genomic groups and in three ripening stages (2, 5 and 7) were studied in relation to physical and physicochemical characteristics, including bioactive compounds. Furthermore, with the obtained data analysed by multivariate statistical analyses (Principal Component Analysis) it was possible to relate all analysed characteristic profile of samples with the different genotype. The three ripening stages were differentiate by total soluble solids, titratable acidity, chrome (C*) and the carotenoids contents. ‘Ney Poovan’ contain high total soluble solid content...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa spp; Carotenoids; Vitamin C; Cooking banana.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000200284

Controlled atmosphere maintains native and cultivated yerba mate quality during shelf life after long-term storage
Provedor de dados: 53
Autores: Thewes,Fabio Rodrigo; Brackmann,Auri; Schultz,Erani Eliseu; Machado,Eduardo Perkovski; Ludwig,Vagner; Santos,Luana Ferreira dos.
ABSTRACT Yerba mate shows social and economic importance for the Southern Latin American countries due to its easy production and large market range. However, there is a problem to harvest the yerba mate at the correct period and to store it until processing and marketing. Thus, the aim of this paper was to evaluate the interaction among the storage in controlled atmosphere, effect of cultivation form and shelf life period on yerba mate quality after long-term controlled atmosphere storage. The experiment was conducted in a factorial arrangement (3 controlled atmosphere conditions × 2 cultivation forms × 4 weeks of shelf life). Native yerba mate, stored under controlled atmosphere, showed higher chlorophyll concentration as compared to the cultivated one....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ilex paraguariensis; Coloration; Chlorophyll concentration; Carotenoids; Phenolic compounds.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200230

The influence of light intensity on anatomical structure and pigment contents of Tradescantia pallida (Rose) Hunt. cv. purpurea Boom (Commelinaceae) leaves
Provedor de dados: 52
Autores: Paiva,Élder Antonio Sousa; Isaias,Rosy Mary dos Santos; Vale,Fernando Henrique Aguiar; Queiroz,Cristina Generosa de Senna.
The aim of this work was to study the effects of five different light intensities on the anatomical structure and on the pigment contents in leaves of Tradescantia pallida cv. purpurea. Once light intensity became lower, the thickness of leaf lamina and mesophyll were reduced. Adjustments in light-harvesting antenna size were observed: an increase in chlorophyll a + b/carotenoids ratio at low-light growth conditions. There was a strong positive linear correlation between the light intensity values and anthocyanin contents. Hence, T. pallida cv. purpurea acclimation to distinct environmental conditions might be related to its capacity of altering structurally and physiologically its phenotype.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf anatomy; Light intensity; Chlorophyll; Carotenoids; Anthocyanin; Tradescantia.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400017

Response of Rhodococcus erythropolis strain IBBPo1 to toxic organic solvents
Provedor de dados: 58
Autores: Stancu,Mihaela Marilena.
Abstract Recently, there has been a lot of interest in the utilization of rhodococci in the bioremediation of petroleum contaminated environments. This study investigates the response of Rhodococcus erythropolis IBBPo1 cells to 1% organic solvents (alkanes, aromatics). A combination of microbiology, biochemical, and molecular approaches were used to examine cell adaptation mechanisms likely to be pursued by this strain after 1% organic solvent exposure. R. erythropolis IBBPo1 was found to utilize 1% alkanes (cyclohexane, n-hexane, n-decane) and aromatics (toluene, styrene, ethylbenzene) as the sole carbon source. Modifications in cell viability, cell morphology, membrane permeability, lipid profile, carotenoid pigments profile and 16S rRNA gene were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhodococcus; Solvents; Morphology; Lipids; Carotenoids.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401009

Evaluation of biomass production, carotenoid level and antioxidant capacity produced by Thermus filiformis using fractional factorial design
Provedor de dados: 58
Autores: Mandelli,Fernanda; Yamashita,Fábio; Pereira,José L.; Mercadante,Adriana Z.
A fractional factorial design 2(5-1) was used to evaluate the effect of temperature, pH, and concentrations of yeast extract, tryptone and Nitsch's trace elements on the biomass, total carotenoids and protection against singlet oxygen by carotenoid extracts of the bacterium Thermus filiformis. In addition, the carotenoid composition was determined by high-performance liquid chromatography connected to a diode array and mass spectrometer detectors (HPLC-DAD-MS/MS). The production of biomass ranged from 0.113 to 0.658 g/L, the total carotenoid from 137.6 to 1,517.4 mg/g and the protection against singlet oxygen from 4.3 to 85.1 %. Results of the fractional factorial design showed that temperature had a negative effect on biomass production and a positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thermophile bacterium; Carotenoids; HPLC-DAD-MS/MS; Antioxidant capacity; Factorial design.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100014

Role of pH on antioxidants production by Spirulina (Arthrospira) platensis
Provedor de dados: 58
Autores: Ismaiel,Mostafa Mahmoud Sami; El-Ayouty,Yassin Mahmoud; Piercey-Normore,Michele.
Abstract Algae can tolerate a broad range of growing conditions but extreme conditions may lead to the generation of highly dangerous reactive oxygen species (ROS), which may cause the deterioration of cell metabolism and damage cellular components. The antioxidants produced by algae alleviate the harmful effects of ROS. While the enhancement of antioxidant production in blue green algae under stress has been reported, the antioxidant response to changes in pH levels requires further investigation. This study presents the effect of pH changes on the antioxidant activity and productivity of the blue green alga Spirulina (Arthrospira) platensis. The algal dry weight (DW) was greatly enhanced at pH 9.0. The highest content of chlorophyll a and carotenoids...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Carotenoids; Phycocyanin; Total phenolic content; Radical scavenging activity; Antioxidant enzymes.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200298

Characterization and optimization of oil microcapsules from Attalea phalerata Mart. for the preservation of bioactive compounds
Provedor de dados: 60
Autores: Lima,Fernando Freitas de; Lescano,Caroline Honaiser; Oliveira,Elaine Florinda Rodrigues de; Fakhouri,Farayde Matta; Moraes,Izabel Cristina Freitas; Kassuya,Cândida Aparecida Leite; Sanjinez-Argandoña,Eliana Janet.
This study aimed microencapsulating Attalea phalerata Mart. oil, containing high carotenoid and phenolic compounds content, with Arabic gum and gelatin, using the complex coacervation method. The yield, efficiency, morphology of microcapsules and content of phenolic compounds, carotenoids and antioxidant activity in different processes conditions (concentration of the filling, temperature and agitation speed) were evaluated. The results showed 88% of yield, efficiency up to 70% and a characteristic size of microcapsules. The amount of carotenoids was high in crude oil (394.84 µg of carotenoids/g oil) and the microencapsulation tests showed amounts of 19.19 to 166.40 µg of carotenoids/g oil. The phenolic compounds in the crude oil were 20.73 mg GAE/g sample...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; Phenolic compounds; Antioxidant activity; Bioactive compounds; Bioactive maintenance.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100580

Oxidative stress in five wheat varieties (Triticum aestivum L.) exposed to water stress and study of their antioxidant enzyme defense system, water stress responsive metabolites and H2O2 accumulation
Provedor de dados: 61
Autores: Chakraborty,Usha; Pradhan,Bhumika.
Five varieties of wheat (Triticum aestivum L.) - KW, UP 2752, PBW 343, SO and LV - were subjected to water stress and sampling was done on the 3rd, 6th and 9th day of stress. RWC decline in KW, UP 2752 and PBW 343 (36.65, 42.34 and 40.75% respectively) was comparatively lesser than in LV and SO (52.93 and 52.67% respectively). In all varieties tested, three antioxidant enzymes (POX, APOX and GR) showed an initial increase. The activity of POX and GR increased with the increase in the duration of stress in KW, UP 2752 and PBW 343, while the activity of APOX declined. However, CAT and SOD showed an initial increase in these varieties, whereas it declined in SO and LV with increase in the period of stress. Accumulation of H2O2 declined during prolonged water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Carotenoids; Drought; Lipid peroxidation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000200005

Phytochemical Evaluation of Wild and Cultivated Pepper (Capsicum annuum L. and C. pubescens Ruiz &amp;amp; Pav.) from Oaxaca, Mexico
Provedor de dados: 117
Autores: Vera-Guzmán,Araceli Minerva; Chávez-Servia,José Luis; Carrillo-Rodríguez,José Cruz; G. López,Mercedes.
Reports of the last decade show that some types of food and spices included in the human diet, such as pepper (Capsicum annuum L.) can have a positive effect on human health. The Mexican pepper germplasm is poorly documented with regard to variety and the amount of phytochemical compounds that it contains. In the present study, the variation of phytochemical compounds was evaluated in nine fruit variants (morphotypes) of wild and cultivated pepper grown in Oaxaca. ANOVA detected significant differences among pepper morphotypes and ripeness stages of fruits; vitamin C, total phenols, flavonoids, P-carotene, coordinated chromatic of color, and capsaicinoids. The highest values of vitamin C were found in 'Tabaquero', 'Guero' and 'Costeño' morphotypes (151.6...
Tipo: Journal article
Palavras-chave: Capsaicionids; Carotenoids; Phenols; Flavonoids; Vitamin C.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400013

Dietary lutein supplementation on diet digestibility and blood parameters of dogs
Provedor de dados: 65
Autores: Alarça,Laís Guimarães; Murakami,Fabiane Yukiko; Félix,Ananda Portella; Krabbe,Everton Luis; Oliveira,Simone Gisele de; Silva,Sebastião Aparecido Borges da.
ABSTRACT: The objective of the present study was to evaluate the digestibility and the immunomodulatory effects of diets supplemented with lutein in dogs. Sixteen adult dogs were distributed in two groups (control and test) in a completely randomized design. Dogs were fed for 120 days with iso-nutritive diets, which only difference was the inclusion of 45g lutein/kg in the diet fed to the test group. Blood samples were collected in the beginning and at the end of the experimental period to evaluate total lymphocyte, lymphocyte proliferation index, and CD4+ and CD8+ lymphocyte counts. In order to evaluate apparent diet digestibility, dogs were housed in metabolic cages for ten days (five days of adaptation and five for faeces total collection). Coefficients...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; CD4+; CD8+; Immunity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202195

Inclusion of canthaxanthin and 25-hydroxycholecalciferol in the diet of broiler breeders on performance and incubation parameters
Provedor de dados: 65
Autores: Duarte,Vinicius; Minafra,Cibele Silva; Santos,Fabiana Ramos dos; Perim,Francisco dos Santos.
The objective of this experiment was to evaluate the effects of a diet containing canthaxanthin and 25-hydroxycholecalciferol (25-OH-D3) on the production and reproductive performances of Cobb 500 broiler breeders aged 53 to 61 weeks. The study included 36,000 Cobb 500 female and 3,600 male broiler breeders aging 51 weeks. The birds were housed in three poultry houses divided into four plots, totaling 12 experimental units each containing 3,000 females and 300 males. The birds received the following treatments: control diet (without the studied additives) or the control diet with the addition of 60mg kg-1feed of 25-(OH)-D3 and canthaxanthin feed (6mg of canthaxanthin and 2,760,000IU of 25-(OH)-D3 per kg of feed) per the supplier's recommendations. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; Vitamin D; Broiler breeders; Hatching; Egg production.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001102050

Physicochemical and antioxidant capacity analysis of colored sweet potato genotypes:  in natura and thermally processed
Provedor de dados: 65
Autores: Vizzotto,Márcia; Pereira,Elisa dos Santos; Vinholes,Juliana Rocha; Munhoz,Priscila Cardoso; Ferri,Núbia Marilin Lettnin; Castro,Luis Antonio Suita de; Krolow,Ana Cristina Richter.
ABSTRACT: Sweet potato ( Ipomoea batatas (L.) Lam) is one of the most popular and ancient roots of Brazil and it can be consumed at different forms such as boiled, roasted or as sweets. Its cooking can lead to physicochemical transformations altering the nutritional properties. The objective of this study was to evaluate the physicochemical characteristics, bioactive compounds and antioxidant capacity of twelve sweet potato genotypes of varying pulp color in natura and roasted. Soluble solids, acidity, sugars, carotenoids, anthocyanins, phenolic compounds and antioxidant capacity were analyzed in the following sweet potatoes genotypes: cream pulp (Rubissol, Cuia, ILS03, ILS10, ILS12, ILS24 and ILS44); orange pulp (Amelia and Beauregard); and purple pulp...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carotenoids; Anthocyanins; Processing; Bioactive compounds; Ipomoea batatas.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400751

Biochemical and bioactive phytonutrients changes in tissues of two cultivars of fresh-cut cassava in stick form under refrigerated storage
Provedor de dados: 65
Autores: Junqueira,Mateus da Silva; Simões,Adriano do Nascimento; Sediyama,Tocio; Côrrea,Paulo Cesar; Puschmann,Rolf.
The aim of this study was to evaluate the effects of fresh-cut in stick form of two cassava cultivars on their biochemical and antioxidant characteristics, at two harvest times. The fresh cut cassava sticks were packaged in polypropylene, maintained at 5±1ºC, with 90±5% relative humidity for 12 days. The concentration of carotenoids, total soluble phenolic compounds and the activity of phenylalanine ammonia lyase and antioxidant capacity were significantly higher for the sticks of cultivar 'Amarela' cassava than for the sticks of cultivar 'Cacau'. The concentrations of carotenoids, total soluble phenolic compounds, and the activity of phenylalanine ammonia lyase and antioxidant capacity were all significantly greater when harvested at 14-month of age....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta Crantz; Carotenoids; PAL; Quality; Antioxidant capacity.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000701284

EFFECTIVENESS OF POSTHARVEST SOLUTIONS FOR THE CONSERVATION OF CUT Oncidium varicosum (ORCHIDACEAE) INFLORESCENCES
Provedor de dados: 64
Autores: Mattiuz,Claudia Fabrino Machado; Mattiuz,Ben-Hur; Rodrigues,Teresinha de Jesus Deléo; Marques,Kelly Magalhães; Martins,Ramilo Nogueira.
The orchid Oncidium varicosum is a tropical plant with significant commercial value due to the beauty of its yellow inflorescences. Several authors have observed a reduction in the water content of cut flowers, consequently, wilting and senescence of petals are the main reasons for the termination of the decorative life of cut flowers. In this research, we studied the effects of several chemical compounds on the postharvest life of cut inflorescences of Oncidium varicosum 'Samurai'. These chemicals are as follows: sucrose (5%) plus 8-hidroxiquinoline citrate (8-HQC) (100 mg L-1) plus silver nitrate (AgNO3) (50 mg L-1); sucrose (5%) plus citric acid (75 mg L-1); quaternary ammonia at 30% (50 mg L-1); and sucrose (5%) plus quaternary ammonia at 30% (50 mg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Physiology; Orchids; Flowers; Carbohydrates; Carotenoids; Relative water content.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000400315

Agronomic biofortification of carrot with selenium
Provedor de dados: 64
Autores: Oliveira,Vanuze Costa de; Faquin,Valdemar; Guimarães,Karina Carvalho; Andrade,Fabrício Ribeiro; Pereira,Joelma; Guilherme,Luiz Roberto Guimarães.
ABSTRACT The selenium (Se) is essential for human metabolism, but a large part of the world’s population has deficiency in this element. This can be reversed by the consumption of biofortified foods, given that plants can efficiently act in controlling excessive and/or accidental consumption of an element that can occur in humans through the use of dietary supplements. The objective of this study was to evaluate the effect of different application forms and sources of Se in the growth, production, nutrition, physical-chemical characteristics, content and accumulation of Se in carrots. The experiment was conducted under greenhouse conditions, using pots containing 4 dm3 of Red-yellow Latosol. A completely randomized design was used in a 2x2x2 factorial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daucus carota Lam; Selenate; Selenite; Maturation index; Carotenoids.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000200138

Bioactive compounds and total antioxidant capacity of cashew apples (Anacardium occidentale L.) during the ripening of early dwarf cashew clones
Provedor de dados: 64
Autores: Lopes,Mônica Maria de Almeida; Miranda,Maria Raquel Alcântara de; Moura,Carlos Farley Herbster; Enéas Filho,Joaquim.
Lately, tropical fruit consumption has increased due to a higher knowledge of its nutritional and therapeutic value. The aim of this work was to evaluate the antioxidant potential of cashew apples from different early dwarf clones during their ripening. The clones analyzed included: CCP 76, CCP 09, BRS 189 and BRS 265 in seven ripening stages. They were analyzed for vitamin C, total carotenoid, total anthocyanin, yellow flavonoids and polyphenol content and total antioxidant capacity. Clone BRS 265 ripe cashew apple presented the highest vitamin C content (279.37 mg x 100 g-1). The ripe BRS 189 cashew apple is colored bright red, and its total anthocyanin content was the highest (21.16 mg x 100 g-1). The yellow flavonoids content was higher for ripe CCP 76...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyphenols; ABTS; Vitamin C; Carotenoids; Food analysis.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000300008