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Accumulation des anthocyanes et caroténoïdes dans les abricots rouges National Institute of Agronomic Research
Bureau, Sylvie; Gouble, Barbara; Grotte, Maggy; Ginies, Christian; Reich, Maryse; Reling, Patrice; Bogé, Marielle; Clauzel, Guy; Audergon, Jean-Luc.
Tipo: Working Paper Palavras-chave: Anthocyanin; Carotenoid; Apricot; Secondary metabolite; Anthocyane; CaroténoÏde; Abricot; Métabolite secondaire.
Ano: 2008 URL: http://hdl.handle.net/2174/174
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Antiproliferative Activity of Violaxanthin Isolated from Bioguided Fractionation of Dunaliella tertiolecta Extracts ArchiMer
Pasquet, Virginie; Morisset, Perrine; Ihammouine, Said; Chepied, Amandine; Aumailley, Lucie; Berard, Jean-baptiste; Serive, Benoit; Kaas, Raymond; Lanneluc, Isabelle; Thiery, Valerie; Lafferriere, Mathieu; Piot, Jean-marie; Patrice, Thierry; Cadoret, Jean-paul; Picot, Laurent.
Dunaliella tertiolecta (DT) was chemically investigated to isolate molecules inhibiting cancer cell proliferation and inducing apoptosis in vitro. The potency to inhibit cell growth was used for the bio-guided fractionation and isolation of active compounds using chromatographic techniques. The DT dichloromethane extract exhibited a strong anti-proliferative activity on MCF-7 and LNCaP cells, and was further fractionated and sub-fractionated by RP-HPLC. High resolution mass spectrometry and spectrophotometric analysis unequivocally identified violaxanthin as the most antiproliferative molecule present in DT DCM extract. Violaxanthin purified from DT induced MCF-7 dose- dependent growth inhibition in continuous and discontinuous treatments, at...
Tipo: Text Palavras-chave: Pigments; Microalgae; Dunaliella; Violaxanthin; Carotenoid; Cancer; Apoptosis.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00040/15142/12575.pdf
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Biodisponibilidade dos carotenoides pró-vitamínicos a em abóboras biofortificadas (cucurbita moschata duch). Repositório Alice
CARVALHO, L. M. J. de; RIBEIRO, E. M. G.; CARVALHO, J. L. V. de; BARBOSA, D. C.; FERNANDEZ, A. A.; KARSE, I. M.; MASCARENHAS, A. P.; DAMASCENO, A. C..
A biofortificação é uma estratégia sustentável que visa reduzir deficiências de micronutrientes em populações vulneráveis, aumentando seu conteúdo, como por exemplo, os carotenoides, em alimentos básicos da dieta. Visando isto, a abóbora (Cucurbita moschata Duch) pode ser um alimento com potencial para a biofortificação por ser considerada fonte de carotenoides com atividade pró-vitamínica A. O objetivo deste estudo foi avaliar a biodisponibilidade dos carotenoides pró-vitamina A em abóboras biofortificadas, em diferentes métodos de cozimento. A bioacessibilidade e a biodisponibilidade dos carotenoides pró-vitamina A foram determinadas pela sua transferência para micelas mistas durante a digestão in vitro e confirmada pela sua acumulação em células...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Abóbora; Carotenoide; Biofortificação; Células Caco-2; Pumpkin; Carotenoid; Biofortified; Caco-2 cells.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1027883
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Carotenoid composition of Umbu-Cajá fruits from Bahia. Repositório Alice
PEREZ, C. L.; FELIPPE, A. C.; KIMURA, M.; JANZANTTI, N. S.; OLIVEIRA, L. A. de; VIANA, E. de S..
Umbu-cajá (Spondias spp.) is a tropical fruit, native from Brazilian northeastern region, consumed fresh or prepared as ice cream, jelly and juice by the population from small cities.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Carotenoid; Umbu-Cajá.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/939312
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Caroténoïdes, des pigments mais pas seulement National Institute of Agronomic Research
Caris-Veyrat, Catherine.
Tipo: Working Paper Palavras-chave: Carotenoid; Secondary metabolite; Caroténoïdes; Métabolites secondaires.
Ano: 2008 URL: http://hdl.handle.net/2174/176
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Characterization of a high oleic oil extracted from papaya (Carica papaya L.) seeds Ciênc. Tecnol. Aliment.
Malacrida,Cassia Roberta; Kimura,Mieko; Jorge,Neuza.
The physicochemical characteristics, fatty acid, tocopherol, and carotenoid composition of a crude oil extracted from papaya (Carica papaya L.) seeds, formosa variety, were investigated. The oil yield from the seeds was 29.16%. The data obtained for the analytical indexes were in agreement with those of other edible oils. The oil obtained had high oxidation resistance (77.97 hours). The major fatty acids in total lipid were oleic (71.30%), palmitic (16.16%), linoleic (6.06%), and stearic (4.73%) acid. The α and δ-tocopherol were the predominant tocopherols with 51.85 and 18.89 mg.kg-1, respectivelly. The β-cryptoxanthin (4.29 mg.kg-1) and β-carotene (2.76 mg.kg-1) were the carotenoids quantified, and the content of total phenolic compounds was 957.60...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seed oil; Fatty acid; Tocopherol; Carotenoid; Total phenolics.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400016
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Concentration of photosynthetic pigments and chlorophyll fluorescence of mahogany and tonka bean under two light environments Rev. Bras. Fisiol. Veg.
GONÇALVES,JOSÉ FRANCISCO DE CARVALHO; MARENCO,RICARDO ANTONIO; VIEIRA,GIL.
This study was carried out in a plantation of a degraded area in Central Amazon, Brazil, in order to assess environmental light effects on leaf pigment concentrations and chlorophyll a fluorescence in mahogany (Swietenia macrophylla King) and tonka bean (Dipteryx odorata Aubl. Willd). Three-year old saplings were grown in an open site (sun) with maximum radiation of approximately 2000 mumol m-2 s-1 and under the shade of a Ochroma pyramidale (Cav. ex Lam. Urb) canopy. A leaf area index of 2.46 was optically determined for the Ochroma foliage with 13% of full sunlight (maximum radiation about 260 mumol m-2 s-1). Carotenoid and chlorophyll concentrations were spectrophotometrically determined. Initial (Fo), maximum (Fm) and variable fluorescence (Fv) were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carotenoid; Dipteryx odorata; Swietenia macrophylla; Tropical species.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312001000200004
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Drying and extraction of astaxanthin from pink shrimp waste (Farfantepenaeus subtilis): the applicability of spouted beds Ciênc. Tecnol. Aliment.
SILVA,Aline Kazumi Nakata da; RODRIGUES,Breno Diniz; SILVA,Luiza Helena Meller da; RODRIGUES,Antonio Manoel da Cruz.
Abstract In this study, the spouted bed drying technique was used to obtain powder from shrimp wastes, with high quality for subsequent extraction of astaxanthin using vegetable oil, as alternative to organic solvents. Shrimp waste paste was dried in three inlet air temperatures (70, 80 and 90 °C), and air velocity used in the experiments was 100% over minimum spouting velocity. The minimum spouting, the velocities were 1.23, 1.33 and 1.39 m/s, for temperatures of 90, 100 and 110 °C respectively. The powder obtained in this work shows properties comparable to of the commercial products, indicating that the spouted bed is an alternative technique to obtain powdered products with quality good, at low cost and suitable for subsequent extraction of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Shrimp waste; Oil extraction; Carotenoid; Palm olein.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000300454
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Effect of cadmium on growth, micronutrient concentration, and δ-aminolevulinic acid dehydratase and acid phosphatase activities in plants of Pfaffia glomerata Braz. J. Plant Physiol.
Skrebsky,Etiane C.; Tabaldi,Luciane A.; Pereira,Luciane B.; Rauber,Renata; Maldaner,Joseila; Cargnelutti,Denise; Gonçalves,Jamile F.; Castro,Gabriel Y.; Shetinger,Maria R.C.; Nicoloso,Fernando T..
Pfaffia glomerata (Spreng.) Pedersen plantlets were grown under different cadmium (Cd) concentrations (0, 20, 40, 60 and 80 μM) in a hydroponic system during 7 d. Plant growth, micronutrient, chlorophyll and carotenoid concentrations, as well as δ-aminolevulinic acid dehydratase (ALA-D; E.C.4.2.1.24) and acid phosphatase (AP; E.C.3.1.3.2) activities were then analysed. Cadmium concentration in both shoots and roots increased with increasing external Cd levels. Metal concentration was on average 12-fold greater in root than in shoot tissues. Root length was unaffected by Cd treatments. In contrast, dry weight of both shoot and roots increased significantly upon addition of 20 and 40 μM Cd. Moreover, shoot and total plant dry weight was only reduced in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian ginseng; Carotenoid; Chlorophyll; Heavy metal; Micronutrient; Phytoremediation.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202008000400004
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Evaluation of carotenoid and cyanogen content of cassava chip flour. Repositório Alice
OLIVEIRA, L. A. de; SILVEIRA, S. M. da; KIMURA, M.; SANTOS, V. da S.; JESUS, J. L. de; FIUZA, A. U. R.; CARVALHO, J. L. V. de.
Large genetic variation in carotenoid content has been reported to roots of cassava genotypes.Moreover, these pigments have to withstand different processing methods before cassava is consumed.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Cassava; Carotenoid.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/939310
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Evaluation of total carotenoids, alpha- and beta-carotene in carrots (Daucus carota L.) during home processing Ciênc. Tecnol. Aliment.
PINHEIRO-SANT’ANA,Helena Maria; STRINGHETA,Paulo César; BRANDÃO,Sebastião César Cardoso; PÁEZ,Héctor Hernando; QUEIRÓZ,Valéria Maria Vitarelli de.
This study aims to analyze the influence of dehydration and different preparation methods during home processing related toalpha-carotene, beta-carotene and total carotenoids stability in carrots. Vitamin A values were evaluated after different treatments. Thus, carrots were submitted to steam cooking, water cooking with and without pressure, moist/dry cooking and conventional dehydration. Determination of alpha- and beta-carotenes was made by High-Performance Liquid Chromatography (HPLC) (conditions were developed by us) using spectrophotometric detection visible-UV at 470 nm; a RP-18 column and methanol: acetonitrile: ethyl acetate (80: 10: 10) as mobile phase. Total carotenoids quantification was made by 449 nm spectrophotometer. The retention of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carrot; Carotenoid; Stability; HPLC.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20611998000100009
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Extraction of Carotenoid Compounds from Saffron stamenUsing Ultrasound Waves CIGR Journal
einafshar, soodabeh; rohani, roxane; ahmadzadeh ghavidel, reihaneh.
Saffron flowers by products including sepals, petals and stamens have no application in Iran’s food industries; nevertheless stigmas contain a considerable amount of carotenoids withhigh antioxidant properties. In this study carotenoid compounds were extracted by an organic solvent (mixture of N-hexane, ethanol and acetone; 2:1:1 v: v) and ultrasound waves. Ultrasound waves were applied at a frequency of 24 kHz and amplitude of 20, 60 and 100% for5, 10 and 15 minute. All treatments were tested  in triplicates. The extraction efficiency, total carotenoid and phenolic compounds, free radical scavenging and reducing power of Fe III were analyzed. The results showed that ultrasound waves with amplitude of 100% imposed for 15 min caused the highest extraction...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidant; Carotenoid; Extraction efficiency; Saffron stamen; Ultrasonic.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3396
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Fruits of Butia capitata (Mart.) Becc as good sources of β -carotene and provitamina Rev. Bras. Frutic.
Faria,Juliana Pereira; Siqueira,Egle M. A; Vieira,Roberto Fontes; Agostini-Costa,Tânia da Silveira.
Butia capitata is a palm tree, widely found in the Brazilian savanna. Their fruits are largely used by local communities to prepare juices, jellies and ice-creams. The main objective of this work was to determine the carotenoids profile of Butia capitata fruits and their provitamin A values. Total carotenoids content ranged from 11.1 to 43.9 μg.g-1; β-carotene was the predominant carotenoid (5.2-22.8 μg.g-1), followed by γ-carotene, phytoene, phytofluene, ζ-carotene, α-cryptoxanthin (or zeinoxanthin) and α-carotene. Provitamin A values varied from 50 to 200 RAE.100g-1. This result suggests that B. capitata pulp may be a good source of β-carotene and provitamin A.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian savanna; Palm tree; Carotenoid.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000500084
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Growth and biopigment accumulation of cyanobacterium Spirulina platensis at different light intensities and temperature BJM
Kumar,Manoj; Kulshreshtha,Jyoti; Singh,Gajendra Pal.
In order to find out optimum culture condition for algal growth, the effect of light irradiance and temperature on growth rate, biomass composition and pigment production of Spirulina platensis were studied in axenic batch cultures. Growth kinetics of cultures showed a wide range of temperature tolerance from 20 ºC to 40 ºC. Maximum growth rate, cell production with maximum accumulation of chlorophyll and phycobilliproteins were found at temperature 35 ºC and 2,000 lux light intensity. But with further increase in temperature and light intensity, reduction in growth rate was observed. Carotenoid content was found maximum at 3,500 lux. Improvement in the carotenoid content with increase in light intensity is an adaptive mechanism of cyanobacterium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spirulina platensis; Growth kinetics; Chlorophyll a; Carotenoid; Phycobiliproteins.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300034
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Impact de l'environnement et du stade de récolte sur la composition du fruit de tomate en caroténoïdes National Institute of Agronomic Research
Gautier, Hélène.
Tipo: Working Paper Palavras-chave: Carotenoid; Tomato; Environmental impact; Secondary metabolite; Caroténoïde; Tomate; Impact environnemental; Métabolite secondaire.
Ano: 2008 URL: http://hdl.handle.net/2174/180
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Impact of Light Intensity on Antioxidant Activity of Tropical Microalgae ArchiMer
Coulombier, Noémie; Nicolau, Elodie; Le Déan, Loic; Antheaume, Cyril; Jauffrais, Thierry; Lebouvier, Nicolas.
Twelve microalgae species isolated in tropical lagoons of New Caledonia were screened as a new source of antioxidants. Microalgae were cultivated at two light intensities to investigate their influence on antioxidant capacity. To assess antioxidant property of microalgae extracts, four assays with different modes of action were used: 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2’-azinobis (3-éthylbenzothiazoline-6-sulphonique) (ABTS), oxygen radical absorbance capacity (ORAC), and thiobabituric acid reactive substances (TBARS). This screening was coupled to pigment analysis to link antioxidant activity and carotenoid content. The results showed that none of the microalgae studied can scavenge DPPH and ABTS radicals, but Chaetoceros sp., Nephroselmis sp., and...
Tipo: Text Palavras-chave: Nephroselmis; Light intensity; In vitro antioxidant activity; Siphonaxanthin; Carotenoid; Bioactive compounds.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00609/72152/70900.pdf
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Improving eating quality and carotenoid content of squash National Institute of Agronomic Research
Noseworthy, J.; Loy, B..
The fruit of most cultigens of Cucurbita maxima and C. moschata squash are high in carotenoids, especially B-carotene and lutein, both of which are important nutritionally. However, there have been no systematic studies to quantify the amount and types of carotenoids in fruit tissues of breeding germplasm and popular cultivars. In the summer of 2007, seven inbred lines of C. maxima and two op cultivars and five inbred lines of C. moschata were grown in replicated plots at research farms in Durham and Madbury, New Hampshire (USA). Data were recorded at harvest and after 30 and 60 days of storage at 15oC on % mesocarp dry weight (DW) and soluble solids (SS), both major attributes for determining acceptable eating quality. A visual estimation of carotenoid...
Tipo: Poster Palavras-chave: Cucurbita maxima; Cucurbita moschata; Butternut squash; Kabocha; Carotenoid.
Ano: 2008 URL: http://hdl.handle.net/2174/258
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Influência da idade do cultivo de nos teores de antioxidantes presentes em frutos de Passiflora tenuifila. Repositório Alice
COSTA, A. M.; SOZO, J. S.; GOMES, J. G.; LIMA, H. C. de; ANTONINI, J. C. dos A.; VIANA, A. M..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Passiflora tenuifila; Maracujá alho; Composto fenólico; Carotenóide; Maracujá; Phenolic compounds; Carotenoid; Passion fruits.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/977626
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Jerimu 8, batata doce rica em carotenos: estabilidade no cozimento doméstico e no processamento de farinhas. Infoteca-e
CASCON, S.C.; ALVES, I.T.G.; BITTENCOURT, A.M.; LEAL, N.R..
1990
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Batata doce; Caroteno; Sweet potato; Carotenoid.
Ano: 1990 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/410547
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Nutrients and bioactive compounds of pulp, peel and seed from umbu fruit Ciência Rural
Ribeiro,Leilson de Oliveira; Viana,Eliseth de Souza; Godoy,Ronoel Luiz de Oliveira; Freitas,Sidinea Cordeiro de; Freitas,Suely Pereira; Matta,Virgínia Martins da.
ABSTRACT: The objective of this research was to evaluate the nutritional composition and bioactive compounds of whole umbu fruit, including pulp, seed and peel, and also of a commercial umbu pulp. Samples of the fractions and of commercial pulp were analyzed for determination of minerals and proximate composition, total phenolic and antioxidant activity. Pulps and peel were also analyzed for vitamin C and carotenoids contents. Commercial pulp presented better nutritional composition than fresh pulp (P<0.05) and the peel presented higher phenolic content and antioxidant activity than seed. Peel also stood out by its vitamin C (79 mg.100 g-1) and total carotenoids (2,751 µg.100 g-1) contents, showing that, as the main barrier of the fruit for its...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spondias tuberosa Arruda Câmara; Phenolic; Carotenoid; ABTS assay.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000400752
Registros recuperados: 29
Primeira ... 12 ... Última
 

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