Consulta: subjectFacets:"Tannins"
Registros recuperados: 22
Data/hora: 09/06/2024 11:30:31

Características morfológicas, culinarias y contenido de taninos de semillas de frijol criollo (Phaseolus vulgaris L.) cultivado en comunidades de la región montaña de Guerrero.
Provedor de dados: Depósito Institucional Abierto de Documentos Digitales del Colegio de Postgraduados (COLPOS DIGITAL )
Autores: Dios Espinobarros, Orquidea de.
Un total de 31 variedades de frijol de mata cultivadas en diferentes comunidades de la Región Montaña de Guerrero fueron colectadas con la finalidad de conocer la variabilidad presente en las características morfológicas, culinarias y contenido de taninos en las semillas. Se aplicó un cuestionario a los productores que aportaron sus variedades para obtener información relacionada con los sistemas de siembra utilizados en frijol, modalidad de siembra, destino de la producción y formas de consumo. Los sistemas de cultivos de frijol practicados son en monocultivo e intercalado, la siembra es bajo riego y temporal, la  mayoría de los colores de frijol son sembrados en julio. La producción es destinada al autoconsumo y a la venta. El frijol se consume en...
Palavras-chave: Características culinarias; Características morfológicas; Phaseolus vulgaris; Taninos; Variedades nativas; Desarrollo Sostenible de Zonas Indígenas; Maestría Tecnológica; Culinary characteristics; Morphological characteristics; Tannins; Native varieties.
Ano: 2012
URL: http://hdl.handle.net/10521/1825

Bioconversion of apple pomace into a multienzyme bio-feed by two mixed strains of Aspergillus niger in solid state fermentation
Provedor de dados: Electronic Journal of Biotechnology
Autores: Zhong-Tao,Sun; Lin-Mao,Tian; Cheng,Liu; Jin-Hua,Du.
Apple pomace is a wasted resource produced in large quantities and its deposit has caused serious environmental problems, so it is significance to make the full utilization of the residues. The objectives of this work were to produce multienzyme bio-feed, biodegrade the anti-nutritional factors such as pectin and tannins in apple pomace, and obtain the nutritional enrichment of the fermented substrate. The mixture of apple pomace and cottonseed powder (1:1, w/w), supplemented with 1% (w/w) (NH4)2SO4 and 0.1% (w/w) KH2PO4, was proved to be the optimum medium for the mixed strains of Aspergillus niger M2 and M3 (2:1, w/w). The activities of pectinase, proteinase and cellulase achieved 21168 u/g, 3585 u/g and 1208u/g, and the biodegradation rates of pectin...
Tipo: Journal article
Palavras-chave: Apple pomace; Aspergillus niger; Multienzyme bio-feed; Pectin; Solid state fermentation; Tannins.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000100002

Otimização e validação de técnica voltamétrica para a detecção e quantificação de compostos fenólicos de interesse agrícola: ácidos fenólicos, flavonoides, taninos e estilbenos.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MAGARELLI, G.; CAVALCANTE, R. S.; CASTRO, C. S. P. de.
bitstream/item/217643/1/Boletim-fenolicos-366-final1.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Voltammetry; Method validation; Reducing power; Oxidation potential; Voltametria; Validação de métodos; Poder redutor; Potencial de oxidação; Phenolic acids; Flavonoids; Tannins; Stilbenes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126457

Efeito de desordens nutricionais na síntese de polifenóis em guandu e leucena utilizadas na alimentação animal.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: LIMA FILHO, O. F. de; ABDALLA, A. L.
bitstream/item/213274/1/BP-85-2020-FINAL.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Síntese foliar; Desordem nutricional; Deficiency; Composto Fenólico; Nutriente; Silício; Toxidez; Deficiência; Guandu; Tanino; Phenolic compounds; Silicon; Toxicity; Tannins; Nutrition.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1122593

Diversity and spatial heterogeneity of mangrove associated sponges of Curaçao and Aruba
Provedor de dados: Naturalis Digital Academic Repository
Autores: Hunting, E.R.; Soest, R.W.M. van; Geest, H.G. van der; Vos, A.; Debrot, A.O.
Sponges are major epibionts of mangrove roots in the Caribbean. Mangrove sponge communities in the Caribbean mainly consist of species that are typical to this habitat and community compositions often differ from those found on coral reefs nearby. Heterogeneity in species distributions between locations and within locations between roots is often reported. This study quantifies the diversity and abundance of mangrove associated sponges in the inner bays of Curaçao and Aruba and correlates variability of regional sponge diversity with environmental variables measured along the surveyed sites. Tannin concentrations vary between mangrove roots, and were correlated to sponge cover as a possible cause for habitat heterogeneity on a smaller scale. A total of 22...
Tipo: Article / Letter to the editor
Palavras-chave: Epibionts; Heterogeneity; Mangroves; Spatial variations; Sponges; Tannins; 42.72.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/291892

Teores de ligninas, nitrogênio e taninos em folhas de espécies típicas do mangue
Provedor de dados: Revista Brasileira de Botânica
Autores: Godoy,Silvana A.P. de; Mayworm,Marco A.S.; Lo,Vincent Kurt; Salatino,Antonio; Schaeffer-Novelli,Yara.
RESUMO - (Teores de ligninas, nitrogênio e taninos em folhas de espécies típicas de mangue). Mediram-se os teores de ligninas, N total e taninos em folhas de Avicennia schaueriana, Laguncularia racemosa e Rhizophora mangle, coletadas em manguezais de Suape, Ilha Madre de Deus (um local muito poluído na Bahía), Cananéia e duas localidades de Bertioga, uma delas fortemente impactada por descargas poluentes, na qual não se observam indivíduos de Rhizophora, e outra situada à margem desta última área. Verificou-se que as folhas de Laguncularia e Rhizophora contêm altos teores de taninos, sendo as da primeira espécie três a quatro vezes mais ricas que as da última. As folhas de Avicennia apresentaram-se desprovidas de taninos e com os mais altos teores de N. Os...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mangrove; Avicennia; Laguncularia; Rhizophora; Tannins; Lignins.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041997000100003

Teor de flavonóides e fenóis totais em folhas de Pyrostegia venusta Miers. de mata e de cerrado
Provedor de dados: Revista Brasileira de Botânica
Autores: SANTOS,MÁRCIA DÉBORA DOS; BLATT,CECÍLIA TERUMI TERADAIRA.
Foram realizadas análises quantitativas de flavonóides, fenóis solúveis e taninos de folhas de Pyrostegia venusta coletadas na mata e no cerrado, com o objetivo de verificar a influência desses biócoros na sua produção. Tanto os resultados de flavonóides como os de fenóis não mostraram diferenças significativas entre as plantas de mata e cerrado, sugerindo que a espécie não apresenta plasticidade fenotípica baseada nesses caracteres, considerando as diferenças de solo dos locais de coleta. Não foram detectados taninos nas folhas desta espécie.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoids; Total phenolics; Tannins; Pyrostegia venusta.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000200004

Alternatives for methane emission mitigation in livestock systems
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Lascano,Carlos E.; Cárdenas,Edgar.
Human activities are contributing to Global Climate Change through the production of Green House Gases (GHG), which result in increased air, land and ocean temperatures and extreme changes in precipitation in regions of low and high rainfall. The most important GHG's are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). It is estimated that 18 % of the annual GHG emissions come from different types of livestock and that 37% of CH4, with higher global warming potential (23) relative to CO2 (1), comes from fermentation processes in ruminants. It is possible that in the future beef and milk exports from producing countries is subject to bans if cattle systems do not comply with measures to reduce GHG. There are several alternatives available and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climate change; Defaunation; Feed chemical additives; Genetic transformation of bacteria; Greenhouse gases; Immunization; Saponins; Tannins.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300020

Nitrogenous compounds, phenolic compounds and morphological aspects of leaves: comparison of deciduous and semideciduous arboreal legumes
Provedor de dados: Scientia Agricola
Autores: Lima,Ana Lúcia da Silva; Zanella,Fábio; Schiavinato,Marlene Aparecida; Haddad,Claudia Regina Baptista.
In general, perennial species contain higher concentrations of certain secondary compounds, such as phenolics, lower levels of nitrogenous compounds, and greater specific leaf mass (SLM) than deciduous species. The aim of this study was to verify whether the comparative data reported in the literature regarding deciduous and evergreen species, also applies to four selected species of a semideciduous tropical forest (a remnant of the Atlantic Forest). The four species chosen for this study, each with apparently different leaf life spans, were two semideciduous (Hymenaea courbaril L. var. stilbocarpa (Hayne) Lee et Lang., and Lonchocarpus guilleminianus (Tul.) Malme, and two deciduous (Enterolobium contortisiliquum (Vell.) Morong., and Peltophorum dubium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf life span; Specific leaf mass; Total nitrogen; Tannins; Atlantic forest.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100007

Variation in plant defenses of Didymopanax vinosum (Cham. &amp;amp; Schltdl.) Seem. (Apiaceae) across a vegetation gradient in a Brazilian cerrado
Provedor de dados: Acta Botanica Brasilica
Autores: Pais,Mara Patrícia; Varanda,Elenice Mouro.
Cerrado vegetation is composed of a mosaic of vegetation types, from campo sujo, dominated by herbs; campo cerrado and cerrado sensu stricto, with shrubby vegetation; to cerradão, with trees forming a denser forest. This physiognomic mosaic is related to differences in the water availability in the soil. Cerrado plants are considered physically and chemically well defended against herbivores, but there are no studies showing how plants allocate investment to various types of defensive mechanisms in different habitat physiognomies. The defensive mechanisms and the nutritional traits of a cerrado plant, Didymopanax vinosum (Cham. &amp;amp; Schltdl.) Seem. (Apiaceae), were compared along a vegetation gradient. Toughness, as well as water, nitrogen, cellulose,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Plant defenses; Tannins; Vegetation gradient; Water stress.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062003000300007

Tannins in Baccharis dracunculifolia (Asteraceae): effects of seasonality, water availability and plant sex
Provedor de dados: Acta Botanica Brasilica
Autores: Espírito-Santo,Mário M; Fernandes,G. Wilson; Allain,Luciana R; Reis,Ticiana R. F.
Several ecological, genetic, and environmental factors are known to influence tannin concentration in plant tissues. In this study, the effects of seasonality, water availability, and sex of the plant on tannin concentration in the dioecious shrub Baccharis dracunculifolia were assessed. The effects of water availability on plant shoot growth and its relationship to tannin concentration were also experimentally evaluated. Tannins occurred in B. dracunculifolia from November to May, peaking during the summer (December to March). However, no relationship between tannin concentration, rainfall and temperature was found. No difference in tannin concentration and shoot growth was found between plants in the irrigated and control treatments, this suggesting that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tannins; Baccharis dracunculifolia; Irrigation; Gender; Phenology.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061999000200006

Nutritious tissue in petals of Annonaceae and its function in pollination by scarab beetles
Provedor de dados: Acta Botanica Brasilica
Autores: Gottsberger,Gerhard; Webber,Antonio Carlos.
ABSTRACT The feeding of pollinating dynastid-scarab beetles on nutritious tissue of Annonaceae flowers results in macroscopically visible gnawing marks on petals. In the present paper, we present and discuss examples of such gnawing marks on Annonaceae from the Cerrado and the Amazon Forest in Brazil. The localization of gnawing marks on the petals and the histochemistry of the nutritious tissues are emphasized. In some species, nutritious tissue is apparently distributed among all petals, while in other species it is more or less diffusely localized. There are also cases in which nutritious tissue occurs only on clearly localized regions of the inner petals. Petals of selected Amazon species were stained, and studied by light and scanning electron...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado and Amazon forest Annonaceae; Electron microscopy; Histochemistry; Lipids; Mucilage cells in petals; Starch; Tannins.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000200279

Urea and Tannin in multiple supplements: Ingestive behavior of grazing beef cattle
Provedor de dados: Acta Scientiarum: Animal Sciences
Autores: Araujo, Hellen Patricia de Oliveira; Paula, Nelcino Francisco de; Martello, Hariany Ferreira; Teobaldo, Ronyatta Weich; Pereira, Luana Barros; Mora, Lays Martins; Valentim, Jean Kaique; Antunes, Hellen Cristina Ferreira.
This work was carried out to evaluate the inclusion of urea and tannin in multiple supplements on ingestive behavior of cattle in pasture. The experiment was taken in the Cattle Nutrition pasture of the Experimental Farm of the Federal University of Mato Grosso, in 4 x 4 Latin square design with a factorial arrangement 2 x 2 (with and without urea and with and without tannin). Four Nellore bulls were used, with average weight of 470 kg and an average age of 20 months, randomly divided in: Supplement without urea and without tannin, Supplement without urea and with tannin, supplement with urea and without tannin, and supplement with urea and with tannin. The level of supplementation used was 1% of body weight during the dry period of the year. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Natural additives; Forage; Supplementation; Urea; Tannins.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47607

Phytochemical profile and antimicrobial properties of Lotus spp. (Fabaceae)
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: GIRARDI,FELIPE A.; TONIAL,FABIANA; CHINI,SILVIA O.; SOBOTTKA,ANDRÉA M.; SCHEFFER-BASSO,SIMONE M.; BERTOL,CHARISE D.
The phytochemical profile and antimicrobial activity of cultivar (cv.) extracts of Lotus uliginosus (cvs. Trojan and Serrano), L. tenuis (cv. Larrañaga) and L. corniculatus (cv. São Gabriel) were investigated. The phytochemical analysis revealed tannins, coumarins and flavonoids in all extracts, with variations among cultivars, showing genotypic variability. By High Performance Liquid Chromatographic method, the cvs. Larrañaga and São Gabriel showed the highest percentage of catechin and epicatechin, respectively, and presented rutin, which was not detected in the other ones. These genotypes showed antifungal activity but not antibacterial one. The cv. Larrañaga inhibited the mycelia growth of Alternaria sp. and Fusarium graminearum while the cv. São...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternaria; Flavonoids; Fusarium; Tannins.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301295

Production of tannase by Aspergillus tamarii in submerged cultures
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Costa,Andréa M.; Ribeiro,Wanessa X.; Kato,Elaine; Monteiro,Antonio Roberto G.; Peralta,Rosane Marina.
The production of tannase by Aspergillus tamarii was studied in submerged cultures. The fungus produced an extracellular tannase after two days of growth in mineral medium containing tannic acid, gallic acid and methyl gallate as carbon source. The best result was obtained using gallic acid as inducer (20.6 U/ml). The production of enzyme was strongly repressed by the presence of glucose. Crude enzyme was optimally active at pH 5.0 and 30º C. The enzyme was stable in a large range of pH and up to the temperature of 45º C.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aspergillus tamarii; Enzyme; Fungal biomass; Submerged cultures; Tannase; Tannins.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200021

Evaluation of the Folin-Ciocalteu Method and Quantification of Total Tannins in Stem Barks and Pods from Libidibia ferrea (Mart. ex Tul) L. P. Queiroz
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Galvão,Marcos Aurelio Morais; Arruda,Alice Oliveira de; Bezerra,Isabelle Cristinne Ferraz; Ferreira,Magda Rhayanny Assunção; Soares,Luiz Alberto Lira.
ABSTRACT The stem bark and pods of “jucá” are widely used in Brazilian folk medicine and, despite their therapeutic relevancies, there are insufficient reports about their quality control. Both herbal drugs from the species are rich in tannins, which showed a lot of biological and economic interest. Thus, the purpose of this study was to evaluate the method for quantification of tannins in the stem bark and pods from L. ferrea. The performance of the method was tested against the influence of the most relevant parameters (reaction time; amount of drug; type and amount of precipitationagents; and, concentration of the reagents). The procedure was validated according to the literature. After optimization, the experimental conditions were established as: 30...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Libidibia ferrea; Quality control; Spectrophotometry; Tannins.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100431

Identification of proanthocyanidins extracted from Pinus radiata D. Don bark
Provedor de dados: Ciencia e Investigación Agraria, Revista Latinoamericana en Ciencias de la Agricultura
Autores: Cortés,Soledad; Pulgar,Hugo; Sanhueza,Verónica; Aspé,Estrella; Fernández,Katherina.
The bark of Pinus radiata D. Don is recognized as a rich natural source of proanthocyanidins (PAs). Barks of Pinus radiata D. Don were extracted to produce a raw extract, and then purified to produce 4 fractions, with the aim of correlating its structural characteristics with the extract antioxidant capacity. The structural characterization was performed by acid catalysis in presence of phloroglucinol, foliowed by the detection of the components by High Precision Liquid Chromatography (HPLC). The subunits identified in the bark of Pinus radiata were: epicatechin- (4ß-2) - phloroglucinol (EC-P), catechin- (4á-2) - phloroglucinol (C-F) and (+) -catechin (C). The purified fractions showed different mean degree of polymerization (mDP), average molecular weight...
Tipo: Journal article
Palavras-chave: Antioxidant activity; Bark; Pinus radiata; Tannins.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200002

Grape and wine phenolics: Observations and recent findings
Provedor de dados: Ciencia e Investigación Agraria, Revista Latinoamericana en Ciencias de la Agricultura
Autores: Kennedy,James A.
What consumers taste in wine is the culmination of management practices from the vineyard to the glass. As researchers, in order to have control over the composition of wine at the time of consumption, it is important to understand how production practices affect wine chemistry. Because phenolic compounds are so important to the overall quality of wine, they are the subject of intense investigation throughout the world. This review is a summary of current knowledge and some recent findings that have taken place in this area.
Tipo: Journal article
Palavras-chave: Anthocyanins; Proanthocyanidins; Red wine; Tannins; Vitis vinifera.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000200001

Pithecellobium dulce, Tagetes erecta and Cosmos bipinnatus on reducing enteric methane emission by dairy cows
Provedor de dados: Ciência Rural
Autores: Pineda,Gloria Stefanny Hernández; Beltrán,Paulina Elizabeth Pedraza; Benaouda,Mohammed; García,José Manuel Palma; Nova,Francisca Avilés; Molina,Luisa; Ortega,Octavio Alonso Castelán.
ABSTRACT: The aim of the present research was to evaluate the effect of Pithecellobium dulce, Tagetes erecta and Cosmos bipinnatus on methane emission, milk yield and dry matter intake in dairy cattle. A 4×4 Latin square experimental design was employed, using four multiparous Holstein cows of 553±72.4kg body weight, at mid lactation and average milk yield of 17.3±3kg/day. The experiment lasted 92 days, divided into four experimental periods of 23 days each. All cows had free access to maize and alfalfa silage in a 50:50 proportion, 4kg of concentrate/day and ad libitum access to water. Treatments consisted in supplementation of 0.5kg/day of the experimental plants, with one control treatment without supplementation. Each cow received one of each treatment...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Methane; Cattle; Climate change; Mitigation; Tannins.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001000650

Efficacy of condensed tannin presents in acacia extract on the control of Trichostrongylus colubriformis in sheep
Provedor de dados: Ciência Rural
Autores: Minho,Alessandro Pelegrine; Filippsen,Laerte Francisco; Amarante,Alessandro Francisco Talamine do; Abdalla,Adibe Luiz.
The aim of this study was to evaluate the potential uses of acacia extract (AE) on Trichostrongylus colubriformis control in sheep. The lambs were allocated in three groups of six animals. Two groups were experimentally infected with third-stage larvae of T. colubriformis and one was remained as non-infected control. Thirty days post-infection, the infected animals from treated group were supplemented with AE. During and after the treatment, the values of faecal eggs counts (FEC), number of third-stage larvae recovered per gram of faeces (LPG), number of FEC accumulated per animal during the treatment period, nematode egg viability, and worm burden were determined. Animals from non-infected group did not presented FEC values, during the experimental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sheep; Tannins; Nematodes; Egg count.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000600019

Relationship between chemical components, bacterial adherence and in vitro fermentation of tropical forage legumes
Provedor de dados: Ciência e Agrotecnologia
Autores: Fluck,Ana Carolina; Kozloski,Gilberto Vilmar; Martins,Andressa Ana; Mezzomo,Mariana Patricia; Zanferari,Filipe; Stefanello,Simone.
Inclusion of forage legumes in diet may improve tropical ruminant systems productivity and sustainability. However, it is not well stablished which chemical components more impact their nutritional value. The relationship between chemical composition and in vitro fermentation of tropical forage legume was evaluated with the objective of obtaining indicators of their nutritional value. Samples of Crotalaria spectabilis, Cajanus cajan, Macrotyloma axillare, Mucuna aterrina, Stylosantis sp. and Canavalia ensiformis, cut from plants at growth age between 47 to 110 days, were analysed. Total gas production showed negative correlation (P&lt;0.05) with total N (R=-0.51), acid detergent fibre (ADF, R=-0.62) and acid detergent lignin (ADL, R=-0.65), and positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gas production; Lignin; Nutritional value; Phenolic compounds; Tannins.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500010

Total antioxidant activity of yacon tubers cultivated in Brazil
Provedor de dados: Ciência e Agrotecnologia
Autores: Pereira,Juciane Abreu Ribeiro; Teixeira,Meryene Carvalho; Saczk,Adelir Aparecida; Barcelos,Maria de Fátima Piccolo; Oliveira,Marcelo Firmino de; Abreu,Wilson César de.
ABSTRACT Yacon (Smallanthus sonchifolius) is a tuberous root from the Andean region in the South America rich em water, fructooligosaccharides and phenolic compounds, some of which are natural antioxidants and may help prevent the deleterious action of free radicals in the body. The yacon has attracted much attention due to their potential health benefits to humans. In this study the levels of total phenolics, tannins, phenolic acids, and total antioxidant activity were measured in the peel and pulp of yacon tubers both in the fresh and flour forms. The flours of yacon presented higher concentrations of total phenolics and tannins, especially peel flour. The yacon pulp flour stood out as the main source of phenolic acids, mainly caffeic and chlorogenic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Smallanthus sonchifolius; Total phenolics; Tannins; Phenolic acids.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000500596