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| Registros recuperados: 65 | |
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| Miotto,Lidiane Carla Vilanova; Mota,Renata Vieira da; Souza,Claudia Rita de; França,Danilo Vieira Cardozo; Dias,Frederico Alcântara Novelli; Pimentel,Rodrigo Meirelles de Azevedo; Dal'Osto,Marite Carlin; Regina,Murillo de Albuquerque. |
| 'Bordô' grapevines (Vitis labrusca) have great relevance to viticulture due to the quality they can impart to wines and juices. However, this cultivar has high variation in yield, ranging from 6 to 11 t ha-1. The use of clones with superior genetic potential related to scions currently marketed may increase crop profitability and revitalize its cultivation. The aim of this study was to evaluate the agronomical responses of twelve clones of the Bordô cultivar selected over a period of 15 years according to yield and quality. The vineyard was planted in 2008. Grape plants were grafted onto '1103 Paulsen' rootstock and trained on vertical shoot positioning. The agronomical evaluations, performed in the 2011, 2012 and 2013 seasons, covered the duration of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis labrusca; Productivity; Quality; Composition; Anthocyanins. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000600003 |
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| Espinosa Trujillo, Edgar. |
| La variabilidad del color de grano en 114 poblaciones criollas de maíz se clasificó en seis grupos, en el ciclo agrícola PV-2003. Se seleccionaron seis poblaciones, una del blanco, una del amarillo, una del rojo (rojo-2), dos del azul (azul-1 y azul-2) y una del púrpura (rojo-1), para establecer un sistema de cruzas dialélicas en el ciclo agrícola PV-2004. En la F1 semilla de las cruzas hubo diferencias entre progenitores, en la cantidad de antocianinas y su distribución en el pericarpio y en la capa de aleurona. Los efectos aditivos (ACG) y maternos (EM) fueron sobresalientes para el grosor del pericarpio y de la aleurona, para la concentración de antocianinas en las mismas estructuras y para su concentración por unidad de peso de grano (CAkg). Por sus... |
| Tipo: Tesis |
Palavras-chave: Antocianinas; Pigmentos; Aptitud combinatoria; Maíz criollo; Heterosis; Anthocyanins; Natural pigments; Combining ability; Native maize; Populations; Heterosis. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1171 |
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| Gouvêa,Ana Cristina Miranda Senna; Araujo,Manuela Cristina Pessanha de; Schulz,Daniel Filisberto; Pacheco,Sidney; Godoy,Ronoel Luis de Oliveira; Cabral,Lourdes Maria Corrêa. |
| Availability of analytical standards is a critical aspect in developing methods for quantitative analysis of anthocyanins. The anthocyanins cyanidin-3-O-glucoside and cyanidin-3-O-rutinoside were isolated from samples of freeze-dried açaí (Euterpe oleraceae Mart.), which is a round and purple well-known palm fruit in Brazil, and then used as standards. The isolation of the anthocyanins was performed by High Performance Liquid Chromatography (HPLC), using an adapted six-channel selection valve. The identification of anthocyanin pigments in açaí was based on mass spectrometric data for molecular ions and MS-MS product ions and on previous published data. After the collection procedure, standards with a high purity grade were obtained and an external standard... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanins; Standard; Isolation; Açaí; Euterpe oleraceae Mart.; HPLC. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000100006 |
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| Tajalli,Faezeh; Malekzadeh,Khalil; Soltanian,Hadi; Janpoor,Javad; Rezaeian,Sharareh; Pourianfar,Hamid R.. |
| The white button mushroom, Agaricus bisporus, is the most commonly grown mushroom in Iran; however, there is a significant shortage of research on its antioxidant activity and other medicinal properties. The aim of this study was to evaluate antioxidant capacity of the methanolic extracts from four cultivated strains and four Internal Transcribed Spacer (ITS)-identified, Iranian wild isolates of A. bisporus. Evaluations were made for total phenols, flavonoids and anthocyanins, and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity. Overall, results showed that all the wild isolates exhibited significantly lower DPPH-derived EC50, compared to the cultivated strains (p < 0.05). A relatively high relationship was observed between total phenols and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agaricus bisporus; Antioxidant capacity; Wild mushrooms; Methanolic extract; Anthocyanins. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300769 |
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| Salazar-González,Claudia; Vergara-Balderas,Fidel T; Ortega-Regules,Ana E; Guerrero-Beltrán,José Á. |
| Liquid extracts of dried Roselle (Hibiscus sabdariffa) calyces obtained using ethanol:water (50:50 and 70:30%, v/v), water, ethanol:1.5 N HCl (85:25%, v/v), and ethanol (96%) to evaluate selected antioxidant characteristics (phenolic compounds and antioxidant capacity), color parameters (L, a, and b), and anthocyanins (delphinidin-3-O-sambubioside, delphinidin-3-O-glucoside (myrtillin), and cyanidin-3-O-sambubioside) by high performance liquid chromatography (HPLC). The total monomeric anthocyanin content was also assessed using the differential pH technique. The phenolic compound content ranged from 1,067±22 (in ethanol) to 2,649±96 (in ethanol:water 70:30%) mg of gallic acid100 g-1 of dehydrated calyces, and the antioxidant capacity ranged from 3.11±0.50... |
| Tipo: Journal article |
Palavras-chave: Anthocyanins; Antioxidant capacity; Cyanidin-3-O-sambubioside; Delphinidin-3-O-sambubioside; Delphinidin-3-O-glucoside; Myrtillin; Hibiscus sabdariffa; Roselle calyces. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100006 |
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| 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 |
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| ARAÚJO,Ana Cristina Moreira Andrade; MENEZES,Evandro Galvão Tavares; TERRA,André William Costa; DIAS,Bruna Oliveira; OLIVEIRA,Érica Resende de; QUEIROZ,Fabiana. |
| Abstract Pequi, murici and sweet passionfruit are typical fruits from Brazilian Cerrado, which stand out for their sensory attributes such as color, flavor and aroma, in addition to their high nutritional value. Their seeds are by-products from the industrial processing of juices, pulps, jellies, and others, and have great exploitation potential due to their high oil content and the presence of bioactive compounds. The present work aimed to evaluate the chemical composition of pequi almonds, and of murici and sweet passionfruit seeds, and also to quantify the total phenolic compounds, carotenoids, anthocyanins and antioxidant activity by the scavenging activity of •DPPH method. Concerning the chemical composition, pequi almonds presented the highest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioactive compounds; Antioxidants; Polyphenols; Anthocyanins; Nutritional composition. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500203 |
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| Rotili, Maria Cristina Copello; Villa, Fabíola; Braga, Gilberto Costa; França, Daiane Luckmann Balbinotti de; Rosanelli, Solivan; Laureth, Jessica Cristina Urbanski; Silva, Daniel Fernandes da. |
| The objective of this work was to evaluate the bioactive compounds, antioxidant activity, and physicochemical characteristics of dovyalis fruit to obtain technological knowledge about this fruit when grown under the conditions found in the municipality of Marechal Cândido Rondon, Paraná State, Brazil. Dovyalis fruits from the State University of Western Parana, which was established in 2012, were harvested in March 2016. Dovyalis fruits were collected from several plants and were divided among three lots. After the harvest, were immediately taken to the Post-Harvest Laboratory for evaluation of the antioxidant activity by the DPPH, ABTS and FRAP methods. The physicochemical characteristics of the fruits and the total phenolic compounds, flavonoids,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Processamento de frutos Dovyalis; Small fruit; Anthocyanins; Fruit coloration. Pós-colheita de frutos e fitotecnia. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35465 |
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| Rotili, Maria Cristina Copello; Villa, Fabíola; Braga, Gilberto Costa; França, Daiane Luckmann Balbinotti de; Rosanelli, Solivan; Laureth, Jessica Cristina Urbanski; Silva, Daniel Fernandes da. |
| The objective of this work was to evaluate the bioactive compounds, antioxidant activity, and physicochemical characteristics of dovyalis fruit to obtain technological knowledge about this fruit when grown under the conditions found in the municipality of Marechal Cândido Rondon, Paraná State, Brazil. Dovyalis fruits from the State University of Western Parana, which was established in 2012, were harvested in March 2016. Dovyalis fruits were collected from several plants and were divided among three lots. After the harvest, were immediately taken to the Post-Harvest Laboratory for evaluation of the antioxidant activity by the DPPH, ABTS and FRAP methods. The physicochemical characteristics of the fruits and the total phenolic compounds, flavonoids,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dovyalis; Small fruit; Anthocyanins; Fruit coloration.; Pós-colheita de frutos e fitotecnia. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35465 |
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| 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 |
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| FERREIRA, J. C.; VENDRAME, L. P. de C.; RESENDE, G. M. de; AMARO, G. B.; SILVA, G. O. da; MELO, R. A. de C. e. |
| Considerando-se a vasta diversidade de cores das raízes de batata-doce, os genótipos de polpa roxa têm se destacado em função do seu conteúdo de antocianinas, fotoquímicos com ação antioxidante. Para avaliar o desempenho de genótipos de batata-doce de polpa roxa, foram conduzidos dois experimentos, novembro-2018 a março-2019 (temperaturas mais elevadas) e outro em julho a novembro-2019 (temperaturas menores). O delineamento experimental foi o de blocos casualizados com seis genótipos: BGBD-0005, BGBD-0080, BGBD-1261, BGBD-1399, BGBD-1402 e BGBD-1405 e duas cultivares (Brazlândia Roxa e Beauregard), como testemunhas. No segundo experimento foi incluído o genótipo Sergipana. Os genótipos BGBD-0005, BGBD-1261 e BGBD-1405 superaram produtividades de 40 t ha-1... |
| Tipo: Folhetos |
Palavras-chave: Vale do São Francisco; Semiárido; Genótipos de polpa roxa; Batata Doce; Raiz Alimentícia; Produtividade; Tubérculo; Hortaliça; Ipomoea Batatas; Antocianina; Ipomoea; Anthocyanins. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1150497 |
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| Reque,Priscilla Magro; Steffens,Rosana Stroschoen; Silva,Alexandre Martins Da; Jablonski,André; Flôres,Simone Hickmann; Rios,Alessandro de Oliveira; Jong,Erna Vogt De. |
| The objectives of this study were to physicochemically characterize and determine the antioxidant activities and anthocyanin contents of organic Rabbiteye blueberries grown in Southern Brazil and its derived products, in order to investigate the utility of food processing wastes as raw materials for developing products with beneficial health properties. The antioxidant capacity of the blueberries was superior to that of other fruits and juices. The pomace exhibited high activity, albeit lower than that of the fruit, while the flour and the dried blueberries lost 66% and 46% of the original antioxidant activity, respectively. The average anthocyanin contents of the fruits were moderate compared to other sources and species of blueberries. The pomace... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blueberry; Processing; Physicochemical characterization; Antioxidant capacity; Anthocyanins; HPLC. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000400019 |
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| Nassur,Rita de Cássia Mirela Resende; Pereira,Giuliano Elias; Alves,Juliana Alvarenga; Lima,Luiz Carlos de Oliveira. |
| The objective of this work was to evaluate the influence of different combinations of grape cultivars and rootstocks on chemical characteristics of grape juices. Six treatments were evaluated, consisting of combinations between the Isabel Precoce and BRS Cora grape cultivars and the 'IAC 766', 'IAC 313', and 'IAC 572' rootstocks. Approximately 10 L of juice were obtained per treatment. Analyses of color, total soluble solids content, pH, anthocyanins, total phenolics, total sugars, and quantification and identification of biogenic amines by HPLC were performed. Biogenic amines, such as putrescine, cadaverine, spermidine, and spermine, were found in all evaluated cultivars. By principal component analysis (PCA), treatments can be divided into two groups,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis labrusca; Anthocyanins; Biogenic amines; Phenolics; Principal component analysis. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000700540 |
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| Segantini,Daniela Mota; Falagán,Natalia; Leonel,Sarita; Modesto,Joyce Helena; Takata,Willian Hiroshi Suekane; Artés,Francisco. |
| There is a growing consumer demand for higher healthy foods such as berries which are a rich source of phenolic compounds. The current work evaluated blackberry cultivars: Cherokee, Tupy and Xavante; raspberry cultivars: Heritage, Fallgold and Black; and the hybrid Boysenberry. All berries were grown under homogenous subtropical conditions in Brazil. Black raspberry, Cherokee and Tupy blackberry cultivars showed the highest ratio between soluble solid contents and titratable acidity, and Fallgold and Heritage raspberry showed the highest titratable acidity. Total phenolic content ranged from 2.03 to 5.33 g kg–1 fresh weight and total anthocyanin content registered values from 0.41 to 1.81 g kg–1 fresh weight. The most common phenolic acids were gallic,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rubus spp; Rubus idaeus; Phenolics; Anthocyanins; Antioxidant capacity. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000300502 |
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| QUINA,FRANK H.; BASTOS,ERICK L.. |
| ABSTRACT An overview is provided of the status of research at the frontiers of investigation of the chemistry and photochemistry of two classes of natural plant pigments, the anthocyanins and the betalains, as well as of the pyranoanthocyanin pigments formed from anthocyanins during the maturation of red wine. Together, anthocyanins and betalains are responsible for almost all of the red, purple and blue colors of fruits and flowers and anthocyanins and pyranoanthocyanins are major contributors to the color of red wines. All three types of pigments are cationic below about pH 3, highly colored, non-toxic, reasonably soluble in water or alcohol and fairly stable to light. They exhibit good antioxidant or antiradical activity and, as part of our diet, confer... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanins; Betalains; Flowers; Plant pigments; Wine. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000200681 |
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| Yamamoto,Lilian Yukari; Koyama,Renata; Assis,Adriane Marinho de; Borges,Wellington Fernando Silva; Oliveira,Izadora Rodrigues de; Roberto,Sergio Ruffo. |
| Abstract : The objective of this work was to evaluate the effect of (S)-cis-abscisic acid (S-ABA) application at different ripening stages, in increasing phenolic compounds and color of berry and juice of 'Isabel' grape (Vitis labrusca). The evaluated treatments were: control, without S-ABA application; 400 mg L-1S-ABA applied 7 days before veraison (DBV) + 400 mg L-1S-ABA at 35 days after first application (DAFA); 400 mg L-1S-ABA applied at veraison (V) + 400 mg L-1S-ABA at 35 DAFA; and 400 mg L-1S-ABA applied 7 days after veraison (DAV) + 400 mg L-1S-ABA at 35 DAFA. There was no difference among treatments regarding the physical characteristics of berries and clusters, as well as total polyphenols in berry and juice. However, there was an increase in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis labrusca; Anthocyanins; Color; Growth regulador. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001201160 |
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| Registros recuperados: 65 | |
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