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Accumulation of Antioxidants in Apricot Fruit through Ripening: Characterization of a Genotype with Enhanced Functional Properties Biol. Res.
Hegedüs,Attila; Pfeiffer,Péter; Papp,Nóra; Abrankó,László; Blázovics,Anna; Pedryc,Andrzej; Stefanovits-Bányai,Éva.
Two apricot genotypes, 'Gonci magyarkajszi' and 'Preventa' were assayed at three ripening stages for flesh color indices (L*, a*, b*, C* and Hº), contents of total phenolics and vitamin C, and both water- and lipid-soluble antioxidant capacities (ferric reducing antioxidant power; 2,2'-diphenyl-1-picrylhydrazyl scavenging activity; total radical scavenging activity; and Photochem lipid-soluble antioxidant capacity) to compare their dynamics in the accumulation of antioxidant compounds and capacities through ripening. The increase in a*, b* and C* and decrease in Hº during ripening represented a color shift from green to yellow and orange due to carotenoid accumulation. Parallel to carotenoid accumulation, contents of total phenolics and vitamin C and...
Tipo: Journal article Palavras-chave: Antioxidant capacity; Apricot; Color; Ripening; Total polyphenolic content; Vitamin C.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000400004
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Anthocyanins, pigment stability and antioxidant activity in jabuticaba [Myrciaria cauliflora (Mart.) O. Berg] Rev. Bras. Frutic.
Lima,Annete de Jesus Boari; Corrêa,Angelita Duarte; Saczk,Adelir Aparecida; Martins,Mariana Pereira; Castilho,Rachel Oliveira.
Different solvents were evaluated for the extraction of jabuticaba anthocyanin pigments, identifying, quantifying and verifying the stability of the anthocyanins, as well as the conduction of three antioxidant activity assays and determination of the vitamin C levels. The maceration with ethanol acidified with HCl 1.5 mol L-1 (85:15) provides better pigment extraction and stability. The skin is anthocyanin rich, presenting 1.59 and 2.06 g 100 g-1 of dry matter in the Paulista and Sabará varieties, respectively. Cyanidin 3-glucoside is the majority pigment of the skins, followed by delphinidin 3-glucoside. The highest level of vitamin C was found in the skins and seeds of both varieties. It was verified that the skins, presented more antioxidant activity,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Jabuticaba; Anthocyanin; Method of extraction; Vitamin C; Antioxidant activity.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300023
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Antioxidant activity, anthocyanins and organic acids content of grape juices produced in Southwest of Minas Gerais, Brazil Ciência e Agrotecnologia
Vilas Boas,Ana Carolina; Henrique,Paôla de Castro; Lima,Luiz Carlos de Oliveira; Decarlos Neto,Antônio.
Phenolic compounds and anthocyanins content in grape juices varies in the cultivar, ripening and climate characteristics. The objective of this work was to characterize and evaluate antioxidant activity of grape juices produced in southwestern Minas Gerais. Grapes were harvested, sanitized and the juices from cultivars 'Bordô', 'Isabel Precoce', 'BRS Violeta' and 'BRS Rúbea' were produced in artisanal equipment by steam extraction and stored for 120 days. The following analyzes were performed during storage: color (L *), pH, soluble solids, titratable acidity, anthocyanins, antioxidant activity (DPPH and β-caroteno/linoleic acid), total phenolics, vitamin C and organic acids. Among the cultivars evaluated, the consumption of grape juice from cultivar 'BRS...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis labrusca; Phenolics; Vitamin C; Organic acids.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500007
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Antioxidant capacity of vitamin C in mouse liver and kidney tissues Biocell
Weyers,Alicia; Ugnia,Laura I.; García Ovando,Hugo; Gorla,Nora B..
In the present study, the antioxidant capacity of vitamin C was examined in the liver and the kidney tissues of mice with or without ciprofloxacin (CFX) treatment. The antioxidant capacity of the vitamin was evaluated in terms of lipid hydroperoxides (LOOH) and thiobarbituric acid reactive substances (TBARs). The experimental design was 15 days of water (control and CFX groups) or vitamin C (vitamin C and vitamin C plus CFX groups) in drinking water. One dose of CFX was injected, 15 minutes before sacrifice, in the corresponding mice. The initial nmol of lipid hydroperoxides/g of tissue were 137 ± 11 in the kidney and 145 ± 15 in the liver, and the nmol of TBARs were 13 ± 0.7 and 12 ± 0.6, respectively. Pre-treatment with vitamin C reduced the levels of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lipid peroxidation; Vitamin C; Ciprofloxacin; Mice.
Ano: 2008 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000100003
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Antioxidant characterization of different italian broccoli landraces Horticultura Brasileira
Nicoletto,Carlo; Santagata,Silvia; Pino,Silvio; Sambo,Paolo.
ABSTRACT: The Brassicaceae plants are among the most consumed vegetables in the world. They feature a large biodiversity, in which landraces and primitive cultivars still play a major role on the cultivation systems of many countries. Brassicas and especially broccoli are closely linked to antioxidant compounds that play a key role for human health. This experiment aimed to characterize some Italian unknown broccoli landraces from the antioxidant point of view. Five landraces named BF, BF4, BFT, BB and BS were evaluated. The total antioxidant properties of broccoli were significantly different among ecotypes and the higher values were recorded in BS and BF4. Total phenols showed the higher values in BF4 and concerning the ascorbic acid content found in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brassica oleracea var. italica; Antioxidant activity; Total phenols; Vitamin C; Hydroxycinnamic acids; Sulforaphane..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000100074
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Antioxidant compoundsand total antioxidant activity in fruits of acerola from cv. Flor Branca, Florida Sweet and BRS 366 Rev. Bras. Frutic.
Souza,Kellina Oliveira de; Moura,Carlos Farley Herbster; Brito,Edy Sousa de; Miranda,Maria Raquel Alcântara de.
Information on antioxidant properties at different ontological stages may help producers and food technologists to identify which cultivar and/or maturity stage are most adequate for their need, therefore this work aimed to study the changes in the antioxidant metabolism during acerola development. Fruit from cv. Flor Branca, BRS366 and Florida Sweet were harvested at different stages: immature green colored (I), physiologically mature with green color and maximum size (II), breaker (III) and full red ripe (IV). After harvest, fruits were selected, divided into four replications with 500 g each and evaluated regarding their titratable acidity, pH, soluble solids, total soluble sugar, vitamin C, polyphenol, anthocyanin, yellow flavonoid, total antioxidant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malpighia emarginata; Development; Vitamin C; Enzymes; Polyphenols.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000200004
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Antioxidant effect on viability of boar semen cooled to 15°C Arq. Bras. Med. Vet. Zootec.
Martins,V.E.D.; Pinto,S.C.C.; Chaves,R.M.; Barros Filho,A.K.D.; Laskoski,L.M.; Souza,F.A..
ABSTRACT This study aimed to evaluate the addition of Vitamin C, reduced Glutathione and trolox on sperm characteristics of pork refrigerated semen. Six pigs were collected through the technique of gloved hand (10 ejaculates/animals). The semen was diluted in MR-A®. After the previous evaluations, the treatments were added: Control group: diluent only; Vitamin C Group: 200μM/mL Vitamin C; Trolox Group: 200μM/mL Trolox; Glutathione group: 2.5mM/ml Reduced glutathione. The semen was stored in thermal boxes and placed inside the refrigerator at 15oC and evaluated at D0, 12, 48, 72 hours. After 30 hours of incubation, each treatment was divided into two equal fractions and the same concentration of antioxidants was added in one of the parts. The results show...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glutathione; Sperm; Trolox; Vitamin C.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100145
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Arginina, vitaminas E y C en la respuesta inmune y estrés oxidativo en pollos de engorda con desafío a Eimeria spp y virus de la enfermedad del Newcastle. Colegio de Postgraduados
Domínguez Martínez, Pablo Alfredo.
La oxidación causada por patógenos es un problema de suma importancia en animales. Pollos mixtos, de un día de edad (Cobb 500, n=624) fueron asignados al azar a uno de seis tratamientos. Como testigo se utilizó una dieta base (T; 40 mg de VE kg-1 de alimento y 1.5% de ARG). El segundo tratamiento fue la dieta base + ARG (ARG; + 0.3%). El tercer tratamiento fue la dieta base + ARG + VE (AVE; + 0.3% y + 40 mg kg-1 de alimento). El cuarto tratamiento fue la dieta base + ARG + VC (AVC; + 0.3% + 1 g kg-1 de alimento). El quinto tratamiento fue la dieta base suplementada con VE + VC (VEC; + 40 mg + 1 g kg-1 de alimento). El sexto tratamiento fue la dieta base + ARG + VE + VC (AVEC; + 0.3% + 40 mg + 1 g kg-1 de alimento). Al día 14 todos los pollitos fueron...
Palavras-chave: Arginina; Vitamina E; Vitamina C; Eimeria; Pollo de engorda; Arginine; Vitamin E; Vitamin C; Broiler; Ganadería; Maestría.
Ano: 2014 URL: http://hdl.handle.net/10521/2351
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Assessing bone mineral density, eggshell characteristics and their relationship at peak egg production of laying hens in response to various levels of vitamin C Rev. Bras. Ciênc. Avic.
Saki,AA; Rahmati,MMH; Eskandarlou,A; Zamani,P; Hosseini Siyar,SA.
In this study, the effects of the inclusion of different vitamin C levels in the diet on bone mineral density (BMD) and eggshell quality was determined. Four experimental diets with four levels of vitamin C (0, 250, 500 and 750 mg/kg) were used. During the experiment, environmental temperature and humidity were 19±1°C and 55±5% respectively. Correlation coefficients of BMD index and shell characteristics with production parameters were also determined. Egg weight, egg mass, hen-day egg production and eggshell quality were not significantly influenced by vitamin C levels. BMD was not affected by vitamin C utilization. A positive correlation was observed between BMD and egg weight and hen-day egg production. A significant positive correlation between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone mineralization; Egg quality; Layer hen; Vitamin C.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000300007
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AVALIAÇÃO DA QUALIDADE FÍSICO-QUÍMICA DE POLPAS DE FRUTA CONGELADAS COMERCIALIZADAS NA CIDADE DE CUIABÁ-MT Rev. Bras. Frutic.
BRASIL,ALEXANDRE SILVA; SIGARINI,KEYLA DOS SANTOS; PARDINHO,FLÁVIA CONCEIÇÃO; FARIA,ROZILAINE APARECIDA PELEGRINE GOMES DE; SIQUEIRA,NÁGELA FARIAS MAGAVE PICANÇO.
RESUMO O presente trabalho teve como objetivo avaliar a qualidade físico-química das polpas de frutas congeladas comercializadas na cidade de Cuiabá-MT, comparando com os padrões estabelecidos pela legislação vigente. O experimento foi desenvolvido em delineamento inteiramente casualizado, sendo cinco tratamentos (marcas denominadas A, B, C, D e E) e três repetições, para as polpas de abacaxi, acerola, caju, goiaba e maracujá. Foram analisados os parâmetros pH, acidez titulável expressa em ácido cítrico, sólidos solúveis, ratio, vitamina C, açúcar redutor e quantificação da perda de vitamina C após 90 dias de armazenamento sob congelamento, em polpas de acerola e caju. Os dados obtidos foram submetidos à análise de variância, e as médias, comparadas pelo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Frutas tropicais; PIQ; Vitamin C.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000100167
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Bioactive compounds and antioxidant activity of jabuticaba var. Pingo de mel during its physiological development Ciênc. Tecnol. Aliment.
GARCIA,Lismaíra Gonçalves Caixeta; SILVA,Flávio Alves da; ASQUIERI,Eduardo Ramirez; BOAS,Eduardo Valério de Barros Vilas; DAMIANI,Clarissa.
ABSTRACT The bioactive compounds and in vitro antioxidant activity of jabuticaba fruits var. Pingo de mel were evaluated during their physiological development. The fruits were harvested ten days after anthesis until maturity, at intervals of four days between collections. The period between anthesis and maturity was 34 days. Higher phenolics levels, hydrolysed tannins, and antioxidant activity were observed in 10 days after anthesis, while vitamin C contents were higher throughout the ripening process. At the end of development (34 days), higher levels of vitamin C and lower hydrolysed tannin were observed. It is known that the lower the hydrolysed tannins, the better the sensory characteristics of the fruit, and considering the benefits of vitamin C, it...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Myrciaria sp.; Vitamin C; Hydrolysed tannins.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600556
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BIOACTIVE COMPOUNDS AND ANTIOXIDANT ACTIVITY OF PINEAPPLE FRUIT OF DIFFERENT CULTIVARS Rev. Bras. Frutic.
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
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Bioactive compounds and total antioxidant capacity of cashew apples (Anacardium occidentale L.) during the ripening of early dwarf cashew clones Ciência e Agrotecnologia
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
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Buriti of the cerrado of Minas Gerais, Brazil: physical and chemical characterization and content of carotenoids and vitamins Ciênc. Tecnol. Aliment.
HAMACEK,Fabiana Rossini; DELLA LUCIA,Ceres Mattos; SILVA,Bárbara Pereira da; MOREIRA,Ana Vládia Bandeira; PINHEIRO-SANT’ANA,Helena Maria.
Abstract The fruit species of the Brazilian Cerrado, such as buriti (Mauritia vinifera ), occupy a prominent position in the ecosystem since they contribute to the economic potential of the region and have high nutritional value. We aimed to evaluate the physical characteristics, chemical composition and content of vitamin C, carotenoids, vitamin E and folates in pulp of buriti from the Brazilian Cerrado of Minas Gerais, Brazil. The length, diameter, mass and fruit yield were evaluated. The titratable acidity was determined by volumetric neutralization; pH by potentiometry; soluble solids by refractometry; moisture using an oven; ash using a muffle furnace; proteins by the micro-Kjeldhal method; total dietary fiber by the gravimetric non-enzymatic method...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mauritia vinifera; Vitamin C; Vitamin E; Folates; HPLC.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500263
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Challenge of pacu (Piaractus mesopotamicus) fed diets supplemented with vitamins C and E by Aeromonas hydrophila under different temperature Arq. Bras. Med. Vet. Zootec.
Garcia,F.; Moraes,F.R.; Martins,M.L..
Pacu Piaractus mesopotamicus fed diets supplemented with three vitamins C and E levels (zero, 250, and 500mg vitamin/kg diet) were challenged with Aeromonas hydrophila under different temperatures. Fish were kept in 300L plastic tanks and fed during the first 60 days with diets without vitamins C and E, in an attempt to reduce vitamin sources. After this period, fish were maintained at an initial density of 14 fish/tank and test diets were offered during 60 days. At the end of the experiment, all fish were infected with 6×10(6)CFU of A. hydrophila/fish, intraperitoneally injected. No interaction of dietary levels of vitamin C vs. E on mortality was observed. Supplementation with vitamins C and E did not decrease the mortality rate of fish challenged with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish; Piaractus mesopotamicus; Vitamin C; Vitamin E; Aeromonas hydrophila; Mortality.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000200014
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Changes in enzymes, phenolic compounds, tannins, and vitamin C in various stages of jambolan (Syzygium cumini Lamark) development Ciênc. Tecnol. Aliment.
Brandão,Taís Silva de Oliveira; Sena,Amanda Reges de; Teshima,Elisa; David,Jorge Maurício; Assis,Sandra Aparecida.
The physiological state of a fruit is closely related to ripening and climatic conditions during the growing period when the fruit undergo changes in color, texture, and flavor. The ripening of the fruit can involve a complex series of biochemical reactions with alteration in enzymes activities, phenols, tannins, and ascorbic acid. The activity of enzymes (carboximethylcellulase, polygalacturonase, and pectinlyase), the total concentration of phenolic compounds, condensed tannins, and vitamin C in five stages of maturation were studied. Significant changes were observed between the maturity stages. The phenolic compounds were higher at green stage (705.01 ± 7.41); tannins were higher at green/purple stage (699.45 ± 0.22). The results showed that the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Syzygium cumini Lam.; Maturity; Total phenolic compounds; Tannins; Vitamin C; Enzymatic activity.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400004
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Chemical and Nutritional Composition of Copao Fruit (Eulychnia acida Phil.) Unswe Thee Environmental Conditions in the Coquimbo Region Chilean J. Agric. Res.
Masson S,Lilia; Salvatierra,María Angélica; Robert C,Paz; Encina A,Cristian; Camilo M,Conrado.
Copao (Eulychnia acida Phil.) is an endemic arborescent cactus restricted mainly to the semi-arid Coquimbo Region (29°54'28" S, 71°15'15" W), Chile. The area of distribution is from sea level to 1200 m.a.s.l. The edible fruit called rumpa is generally round, with green or pink peel and small scales on its surface, showing wide variability in size and weight. The aim of this work was to characterize the rumpa harvested in January 2009 and 2010 in three sectors of Coquimbo Region to determine chemical and nutritional composition in three fractions: pulp with seeds, juice, and peel. The research showed that this fruit is a good natural source of mainly soluble dietary fiber, which has a jellied texture and is present in the three fractions analyzed: 2% for...
Tipo: Journal article Palavras-chave: Rumpa; Arborescent cactus; Vitamin C; Minerals.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400004
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Chemical and physicochemical characteristics changes during passion fruit juice processing Ciênc. Tecnol. Aliment.
Fernandes,Aline Gurgel; Santos,Gerusa Matias dos; Silva,Daniele Sales da; Sousa,Paulo Henrique Machado de; Maia,Geraldo Arraes; Figueiredo,Raimundo Wilane de.
Passion fruit is widely consumed due to its pleasant flavour and aroma acidity, and it is considered very important a source of minerals and vitamins. It is used in many products such as ice-cream, mousses and, especially, juices. However, the processing of passion fruit juice may modify the composition and biodisponibility of the bioactive compounds. Investigations of the effects of processing on nutritional components in tropical juices are scarce. Frequently, only losses of vitamin C are evaluated. The objective of this paper is to investigate how some operations of passion fruit juice processing (formulation/homogeneization/thermal treatment) affect this product's chemical and physicochemical characteristics. The results showed that the chemical and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Passion fruit juice; Hot fill process; Thermal treatment; Vitamin C; Carotenoids; Industrial processing.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000300030
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Chlorination: phytotoxicity and effects on the production and quality of Lactuca sativa var. Mantecosa grown in a closed, soil-less system Phyton
Premuzic,Z; Palmucci,HE; Tamborenea,J; Nakama,M.
The addition of chlorine constitutes an economical disinfection method for closed, soil-less systems. Three quantities of sodium hypochlorite (0.55, 5.5 and 11 ppm) were applied to closed, soil-less greenhouse- grown lettuce (Lactuca sativa), to study the effect on its production (fresh weight and dry matter) and some commercial and nutritional quality factors (phytotoxicity, Vitamin C, nitrates). Sodium hypochlorite was weekly added within the nutrient solution, and the chemical properties (pH, EC and chlorides) of the recycled solution were measured. Damage to leaves was evaluated 15 days before harvest. Chlorination produced different effects regarding both production and quality. All treatments presented plants with excellent commercial weight,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorination; Lactuca sativa; Nitrates; Phytotoxicity; Vitamin C.
Ano: 2007 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572007000100010
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Citrus (Rutaceae): a review of recent advances in etymology, systematics and medical applications Naturalis
Mabberley, D.J..
The naming, introduction and classification of citrus crops and their allies is outlined. Traditional medicinal use and ‘Western’ applications in the treatment of scurvy and obesity, the prevention of AIDS, and in contraception is reviewed. Names for the commercially significant citrangequat (Citrus × georgiana) and the ‘sunrise lime’ or ‘faustrimedin’ (C. × oliveri) are provided.
Tipo: Article / Letter to the editor Palavras-chave: Citrus; Rutaceae; AIDS; Citrangequat; Contraception; Etymology; Obesity; Sunrise lime; Vitamin C.
Ano: 2004 URL: http://www.repository.naturalis.nl/record/524668
Registros recuperados: 68
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