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Registros recuperados: 13
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Chlorogenic acid concentration in Brazilian carrots cultivars. Repositório Alice
MALDONADE, I. R.; CARVALHO, A. D. F. de; COELHO, L. F. S.; RIBEIRO, R. L. V..
2015
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Phenolic acids; Cross-breeding; Antioxidant.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1035782
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Effect of chlorocholine chlorid on phenolic acids accumulation and polyphenols formation of buckwheat plants Biol. Res.
Sytar,Oksana; Borankulova,Asel; Hemmerich,Irene; Rauh,Cornelia; Smetanska,Iryna.
BACKGROUND: Effect of chlorocholine chloride (CCC) on phenolic acids composition and polyphenols accumulation in various anatomical parts (stems, leaves and inflorescences) of common buckwheat (Fagopyrum esculentum Moench) in the early stages of vegetation period were surveyed. RESULTS: Treatment of buckwheat seeds with 2% of CCC has been increased content of total phenolics in the stems, leaves and inflorescences. On analyzing the different parts of buckwheat plants, 9 different phenolic acids - vanilic acid, ferulic acid, trans-ferulic acid, chlorogenic acid, salycilic acid, cinamic acid, p-coumaric acid, p-anisic acid, methoxycinamic acid and catechins were identified. The levels of identified phenolic acids varied not only significantly among the plant...
Tipo: Journal article Palavras-chave: Chlorocholine chloride; Phenolic acids; Catechins; Buckwheat.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100019
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Enzyme-assisted extraction of phenolics from winemaking by-products: Antioxidant potential and inhibition of alpha-glucosidase and lipase activities. Repositório Alice
CAMARGO, A. C. de; REGITANO-D?ARCE, M. A. B.; BIASOTO, A. C. T.; SHAHIDI, F..
Phenolics in food and agricultural processing by-products exist in the soluble and insoluble-bound forms. The ability of selected enzymes in improving the extraction of insoluble-bound phenolics from the starting material (experiment I) or the residues containing insoluble-bound phenolics (experiment II) were evaluated. Pronase and Viscozyme improved the extraction of insoluble-bound phenolics as evaluated by total phenolic content, antioxidant potential as determined by ABTS and DPPH assays, and hydroxyl radical scavenging capacity, reducing power as well as evaluation of inhibition of alpha-glucosidase and lipase activities. Viscozyme released higher amounts of gallic acid, catechin, and prodelphinidin dimer A compared to Pronase treatment. Furthermore,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Composto fenólico; HPLC; Flavonóides; Subproduto de vinificação; Enzima; Processamento de alimento; Tecnologia de alimento; Phenolic acids; Flavonoids.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1062143
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Identification of phenolic compounds in pomegranate (Punica Granatum) seeds and soybean (Glicine Max) oils and its stabilization by spray drying. Repositório Alice
SILVA-JAMES, N. K.; FERREIRA, M. J. A.; NOGUEIRA, R. I.; FREITAS, S. P.; NASCIMENTO, L. da S. de M. do.
Pomegranate seed oil (PSO), even though highly sensitive to oxidation, has been extensively studied due to its bioactive potentials, assigned to the punicic acid, a polyunsaturated fatty acid, and several phenolic compounds. Combined with soybean oil (SO) we get an affordable product, rich in essential fatty acids. In this study we evaluate PSO and SO for phenolic and fatty acids compositions and encapsulate it by spray drying to increase its shelf life. Modified starch, maltodextrin and gum arabic are evaluated by a mixture design to get the better wall material composition. The content of punicic, a conjugated linolenic acid, and linoleic acids in PSO and SO were, respectively 75% and 54%. As expected, the phenolic acids were found at low concentration...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Pomegranate seed oil; Phenolic acids; Fatty acids; Microencapsulation.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1058270
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Investigations of Growth Promoting Activity of Some Phenolic Acids CIGR Journal
El-Awadi, Mohamed ElSayed.
The effect of phenolic acids as caffeic, ferulic or salicylic acids at low concentrations (up to 30 ppm) were investigated on faba bean growth, yield and some physiological processes. The experiments were carried out during the two growing seasons of 2014/2015 and 2015/2016 at the Research and Production Station, National  Research  Centre,  Nubaria  Province,  Behaira  Governorate,  Egypt. Caffeic, ferulic or salicylic acids increased growth of faba bean plant over the untreated control. Caffeic acid at 20 ppm. showed observable significant increase in dry weight of shoot. Regarding the effect of phenolic acids on some chemical compounds, caffeic acid is seemed to be having the greatest promotive effect on total photosynthetic pigments in fresh leaf...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydroxybenzoic acid; Hydroxycinnamic acid; Phenolic acids; Vicia faba.
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4383
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Óleo de argan: histórico cultural, características e aplicações industriais. Repositório Alice
LAGO, R. C. A.; BIZZO, H. R..
bitstream/item/197006/1/Rev-Quim-Ind-2019-762-56-61-.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Vitamin content; Carotenoids; Flavonoids; Phenolic acids; Clusiaceae.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1108781
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Peroxidase and phenylalanine ammonia-lyase activities, phenolic acid contents, and allelochemicals-inhibited root growth of soybean Biol. Res.
HERRIG,VANESSA; FERRARESE,MARIA DE LOURDES L.; SUZUKI,LETÍCIA S.; RODRIGUES,JOÃO DOMINGOS; FERRARESE-FILHO,OSVALDO.
The influence of the allelochemicals ferulic (FA) and vanillic (VA) acids on peroxidase (POD, EC 1.11.1.7) and phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) activities and their relationships with phenolic acid (PhAs) contents and root growth of soybean (Glycine max (L.) Merr.) were examined. Three-day-old seedlings were cultivated in nutrient solution containing FA or VA (0.1 to 1 mM) for 48 h. Both compounds (at 0.5 and 1 mM) decreased root length (RL), fresh weight (FW) and dry weight (DW) and increased PhAs contents. At 0.5 and 1 mM, FA increased soluble POD activity (18% and 47%, respectively) and cell wall (CW)-bound POD activity (61% and 34%), while VA increased soluble POD activity (33% and 17%) but did not affect CW-bound POD activity. At 1 mM, FA...
Tipo: Journal article Palavras-chave: Roots; Phenolic acids; Phenylalanine ammonia-lyase; Peroxidase; Soybean.
Ano: 2002 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000100009
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Phenolic characterization of Northeast Portuguese propolis: usual and unusual compounds IPB - Escola Superior Agrária
Falcão, Soraia; Vilas-Boas, Miguel; Estevinho, Leticia M.; Barros, Cristina; Domingues, M.R.M.; Cardoso, Susana M..
In this study, an ethanolic extract from Portuguese propolis was prepared, fractionated by highperformance liquid chromatography, and the identification of the phenolic compounds was done by electrospray mass spectrometry in the negative mode. This technical approach allowed the identification of 37 phenolic compounds, which included not only the typical phenolic acids and flavonoids found in propolis from temperate zones but also several compounds in which its occurrence have never been referred to in the literature. Four of the novel phenolic compounds were methylated and/or esterified or hydroxylated derivatives of common poplar flavonoids, although six peculiar derivatives of pinocembrin/pinobanksin, containing a phenylpropanoic acid derivative moiety...
Tipo: Article Palavras-chave: Phenolic compounds; Flavonoids; Phenolic acids; Mass spectrometry; Electrospray ionization.
Ano: 2010 URL: http://hdl.handle.net/10198/3608
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Quantificação de ácidos fenólicos constitutivos da soja [Glycine max (L.) Merrill] por cromatografia líquida de alta eficiência (CLAE). Infoteca-e
FRIGHETTO, R. T. S.; BACCAN, M..
O escopo do presente trabalho é a disponibilização de um método de análise para a determinação quantitativa de ácidos fenólicos constitutivos das folhas de soja. O método é uma adaptação baseada em Evaristo e Leitão (2001) para mistura da fase móvel e o comprimento de onda determinado por Ruhland et al (2005).
Tipo: Documentos (INFOTECA-E) Palavras-chave: Ácidos fenólicos; Cromatografia líquida de alta eficiência; Cromatografia; Análise química; Soja; High performance liquid chromatography; Soybeans; Phenolic acids.
Ano: 2012 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/939049
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Stone Fruits as a Source of Bioactive Compounds. Repositório Alice
VINHOLES. J.; GELAIN, D. P.; VIZZOTTO, M..
2016
Tipo: Capítulo em livro científico (ALICE) Palavras-chave: Almond; Anticancer; Antidiabetic; Antiinflammatory; Antioxidant; Apricot; Bioactive Compounds; Cardiovascular protection; Cherry; Flavonoids; Nectarine; Obesity; Peach; Phenolic acids; Phenolic compounds; Plum; Prunus; Stone fruits.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1067684
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The antioxidant properties of calafate (Berberis microphylla) fruits from four different locations in southern Chile Ciencia e Investigación Agraria
Mariangel,Emilia; Reyes-Diaz,Marjorie; Lobos,Walter; Bensch,Emma; Schalchli,Heidi; Ibarra,Pamela.
The antioxidant capacity (AC), total anthocyanins (TA) and total phenols (TP) of calafate fruit from four locations in southern Chile (El Blanco, Lonquimay, Mañihuales and Temuco) were determined using both the free radical 2.2-diphenyl-1-picrylhydrazyl (DPPH) method and the linoleic acid oxidation inhibition method as well as the pH-differential and Folin-Ciocalteu methods. Phenolic compounds were also identified using HPLC-DAD (High Performance Liquid Chromatography-Diode-Array Detection). The results showed that TP varied significantly according to the location. Mañihuales was noteworthy, with 34.9 mg of GAE g-1 dried fruit. The measured AC level depended on the methodology used, varying significantly between locations according to the DPPH results....
Tipo: Journal article Palavras-chave: Antioxidants; Antioxidant capacity; Berberis; Flavonoids; Phenolic acids; Total phenols.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100014
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Trellis systems, rootstocks and season influence on the phenolic composition of Chenin Blanc grape. Repositório Alice
COSTA, R. R. da; RODRIGUES, A. A. M.; VASCONCELOS, C. A. F. de; COSTA, J. P. D.; LIMA, M. A. C. de.
The biosynthesis of phenolic compounds might be influenced by environmental factors, such as solar radiation, temperature and relative air humidity, and production system. Some components of the production system, particularly the trellis system and rootstock, might change the phenolic composition of grapes due to microclimate of the cultivation region. In this study, the phenolic profile of ?Chenin Blanc? grapes was characterized with different trel-lis systems and rootstocks in two consecutive production cycles by using high-performance liquid chromatography under tropical semi-arid conditions. In the second production cycle (Jan-May/2016), accumulation of (-) - epicatechin gallate and (-) - epigallocatechin gallate was higher when vigorous rootstocks...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Sistemas de treliça; Vitivinicultura tropical; Composto Fenólico; Uva; Porta Enxerto; Flavonóide; Vitis Vinifera; Phenolic acids; Grapes; Flavonoids.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113110
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Zein films with unoxidized or oxidized tannic acid. Repositório Alice
SANTOS, T. M.; SOUZA FILHO, M. de S. M. de; MUNIZ, C. R.; MORAIS, J. P. S.; KOTZEBUE, L. R. V.; PEREIRA, A. L. S.; AZEREDO, H. M. C. de.
bitstream/item/171179/1/ART17065.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Filmes biodegradáveis; Proteína; Ácidos fenólicos; Cruzamento; Filmes biodegradáveis; Proteína; Ácidos fenólicos; Cruzamento; Biodegradable films; Protein; Phenolic acids; Cross-linking.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085130
Registros recuperados: 13
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