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Registros recuperados: 40 | |
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ALVES, A. R.; MEDEIROS, A. N. de; ANDRADE, A. P. de; FRIGHETTO, R. T. S.; SILVA, M. J. S.. |
Resumo: A mudança climática como consequência da emissão antropogênica de gases de efeito estufa está entre os temas em evidência. A agropecuária é apontada como uma das fontes de emissões de gases de efeito estufa, em especial a pecuária que contribui com as emissões de metano (CH4), de origem entérica e de dejetos, e a emissão de óxido nitroso (N2O) do solo de pastagens e da produção de grãos. Metano de ruminantes origina-se, principalmente, como produtos do processo realizado pelos microrganismos do rúmen. Estes microrganismos utilizam nutrientes do alimento ingerido como substrato e produzem diversos compostos como produtos desse metabolismo, dentre eles o metano. Dessa maneira, a emissão de metano está diretamente relacionada à dieta ingerida pelos... |
Tipo: Separatas |
Palavras-chave: Emissão de metano; Pequeno ruminante.; Caatinga; Pecuária; Nutrição Animal; Efeito Estufa; Ruminante; Tanino.; Small ruminants; Animal nutrition; Methane; Greenhouse gas emissions; Tannins. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1098449 |
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BRAZ, C. E. M.. |
AVALIAÇÃO QUÍMICA DA QUALIDADE DE COUROS E EFLUENTES DE CURTUME. Para a transformação da pele de animais em couro, um material estável e imputrescível, diversos produtos químicos são utilizados para a produção de um material com boa qualidade e aspecto. Por ser de baixo custo e gerar um produto de alta resistência, o Cr(III) é o principal agente curtente utilizado na transformação de peles. No entanto, apresenta-se como tóxico, principalmente na forma oxidada (Cr(VI)). Alternativa considerada ambientalmente mais amigável é a utilização de taninos (sintéticos ou vegetais), em substituição ao Cr(III). Independente do processo de curtimento é importante avaliar a qualidade do couro produzido e os resíduos gerados, cujas características devem ser conhecidas,... |
Tipo: Teses |
Palavras-chave: Pele de animal; Qualidade do couro; Couro bovino; Couro; Tanino; Curtimento; Leather; Leather tanning; Tannins. |
Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113442 |
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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 |
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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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SILVA, D. L. S.; OLIVEIRA, K. P.; AROEIRA, L. J. M.; CHAVES, D. F.; PONCIANO, M. F.; BRAGA, A. P.; LIMA JUNIOR, D. M.. |
Abstract: Chemical composition of some potential forages species, natives from Caatinga region, were evaluated. Samples of Macroptilium heterophyllum, Stylosanthes humilis, Rhynchosia mÃnima, Desmodium tortuosum Sw. Dc, Merremia aegyptia, Mimosa tenuiflora Wild, Bauhinia cheilantha and as well Macroptilium lathyroides, Caesalpinia pyramidalis and Mimosa tenuiflora hays were collected in Rio Grande do Norte Stated, during 2011 rainy season. The analyses: dry matter (DM), crude protein (CP) mineral matter (MM) ether extract (EE) neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin (LIG), insoluble neutral detergent nitrogen, (INDN) insoluble acid detergent nitrogen, (ADIN), total phenol (TF) and total tannin (TT) were done at Embrapa Caprinos... |
Tipo: Artigo de periódico |
Palavras-chave: Macroptilium heterophyllum; Rhynchosia mínima; Merremia aegyptia; Bauhinia cheilantha; Jitirana; Caatinga; Composição Química; Stylosanthes Humilis; Caesalpinia Pyramidalis; Leguminosa Forrageira; Tanino; Espécie Nativa; Vegetação Nativa; Catingueira; Jurema Preta; Chemical composition; Desmodium tortuosum; Mimosa tenuiflora; Macroptilium lathyroides; Tannins; Forage legumes; Semiarid zones; Vegetation. |
Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1095581 |
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GOMES, G. M. F.; BOMFIM, M. A. D.; ARAUJO FILHO, J. A. de; OLIVEIRA, S. Z. R. de; PEREIRA, L. P. da S.. |
Resumo: O objetivo neste trabalho foi avaliar o efeito da inclusão de diferentes fontes de feno de leguminosas na dieta de cabras leiteiras sobre o consumo e a digestibilidade da matéria seca. Foram utilizadas quatro cabras Saanen e quatro Moxotó com 60 dias de lactação mantidas em gaiolas de metabolismo alocadas em delineamento em duplo quadrado latino 4x4. Os tratamentos consistiram de três fontes de feno de leguminosas: leucena (LC), jurema-preta (JP), catingueira (CG) e uma dieta controle com feno de capim Tifton-85. Houve efeito significativo dos tratamentos sobre a digestibilidade da matéria seca (P<0,05), que diminuiu com a inclusão dos fenos testados. A interação Tratamentos x Raça foi significativa (P<0,05) para consumo de MS (% PV), não... |
Tipo: Artigo de periódico |
Palavras-chave: Raça Saanen; Moxotó.; Alimentação; Antioxidante; Caprino; Consumo; Digestibilidade; Feno; Fibra; Matéria Seca; Nutrição Animal; Tanino.; Antioxidants; Hay; Tannins; Feed intake; Brazil.; Dietary fiber; Dairy goats; Animal nutrition. |
Ano: 2007 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/533692 |
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SOARES, L. C. B.; BRITO, J. I. M.; ANJOS, E. dos; FARIAS, A. C. de; PEREIRA, D. H.; PEDREIRA, B. C. e; PRADO, T. A.; BATISTA, E. D.. |
Effects of high intake supplementation containing different additives on ruminal ammonia nitrogen (RAN) concentration and pH were evaluated in Nelore bulls grazing during dry season. Four Nelore bulls (425 ± 79.3 kg body weight, BW) fitted with ruminal cannula were studied in a 4 × 4 balanced Latin square design. Animals were distributed in 0.2 ha paddocks of Brachiaria brizantha cv. BRS Piatã where they received daily ad libitum protein-energy supplementation (160 g kg-1 crude protein). Treatments included the additives: 1) virginiamycin at 70 mg kg-1 dry matter (DM); 2) ADV: Advantage 4.1 (Alltech) at 1.25 g kg-1 DM, a yeast-based additive as replacement of virginiamycin; 3) TAN14: ByPro® (Silvateam Brasil) at 1.4 g kg-1 DM, a quebracho tannin extract as... |
Tipo: Parte de livro |
Palavras-chave: Ruminal acidosis; Tannins; Virginiamycin; Yeasts. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1106190 |
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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 |
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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 |
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LOPES, R. de C. S. O.; LIMA, S. L. L. de; SILVA, B. F. da; TOLEDO, R. C. L.; MOREIRA, M. E de C.; ANUNCIAÇÃO, P. C. de; WALTER, E. H. M.; CARVALHO, C. W. P. de; QUEIROZ, V. A. V.; RIBEIRO, A. Q.; MARTINO, H. S. D.. |
This study investigated the chemical and nutritional composition of breakfast cereal based on whole sorghum, and the effect of its association with unfermented probiotic milk on the inflammation and oxidative stress of individuals with chronic kidney disease. Extruded sorghum breakfast meal presented higher carbohydrate concentration (approximately 71%), followed by protein (approximately 11%) and lipid (approximately 0.4%). When compared to extruded maize breakfast meal, it presented higher percentage of dietary fiber (p < 0.05), and higher content of phenolic compounds and tannin, consequently higher antioxidant activity (p < 0.05). Extruded sorghum breakfast cereal combined with unfermented probiotic milk decreased the C-reactive protein (p <... |
Tipo: Separatas |
Palavras-chave: Tecnologia de Alimento; Composto Fenólico; Fibra; Dieta; Antioxidante; Doença; Extrusão; Fermentação; Sorgo; Tanino; Leite de Soja; Cereal; Rim; Inflamação; Sorghum Bicolor; Phenolic compounds; Dietary fiber; Antioxidants; Chronic diseases; Probiotics; Food technology; Tannins; Milk analysis; Breakfast cereals; Antioxidant activity; Inflammation; Kidney diseases. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091120 |
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LOPES, R. de C. S. O.; LIMA, S. L. L. de; SILVA, B. F. da; TOLEDO, R. C. L.; MOREIRA, M. E de C.; ANUNCIAÇÃO, P. C. de; WALTER, E. H. M.; CARVALHO, C. W. P. de; QUEIROZ, V. A. V.; RIBEIRO, A. Q.; MARTINO, H. S. D.. |
This study investigated the chemical and nutritional composition of breakfast cereal based on whole sorghum, and the effect of its association with unfermented probiotic milk on the inflammation and oxidative stress of individuals with chronic kidney disease. Extruded sorghum breakfast meal presented higher carbohydrate concentration (approximately 71%), followed by protein (approximately 11%) and lipid (approximately 0.4%). When compared to extruded maize breakfast meal, it presented higher percentage of dietary fiber (p < 0.05), and higher content of phenolic compounds and tannin, consequently higher antioxidant activity (p < 0.05). Extruded sorghum breakfast cereal combined with unfermented probiotic milk decreased the C-reactive protein (p <... |
Tipo: Artigo de periódico |
Palavras-chave: Tecnologia de Alimento; Composto Fenólico; Fibra; Dieta; Antioxidante; Doença; Extrusão; Fermentação; Sorgo; Tanino; Leite de Soja; Cereal; Rim; Inflamação; Sorghum Bicolor; Phenolic compounds; Dietary fiber; Antioxidants; Chronic diseases; Probiotics; Food technology; Tannins; Milk analysis; Breakfast cereals; Antioxidant activity; Inflammation; Kidney diseases. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091257 |
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D'ALMEIDA, C. T. S.; MAMERI, H.; MOREL, M. H.; CARVALHO, C. W. P. de; QUEIROZ, V. A. V.; CAMERON, L. C.; TAKEITI, C. Y.; FERREIRA, M. S. L.. |
In this work, the effect of thermoplastic extrusion on the phenolic compounds (PC)profile by UPLC-MSEand on the solubility/polymerization of kafirins by SE-HPLC was evaluated in extruded whole sorghum, with or withouttannins. Free (FPC) and bound (BPC)phenolic compoundswere extracted separately.The characteristics evaluated are antioxidant activity (by the methods DPPH and FRAP),total phenoliccontent(by the methodology involving the Reagent of Folin Ciocalteu), total proanthocyanidinscontent (TPAC) and total flavonoid content (TFC). FPC and BPC ranged from 41.1 to 434.3and 8.2to 283.7mg GAE/100g (db), respectively.DPPH and FRAP analysis showed a strong correlation with TPC (0.99and 0.95, p< 0.05, respectively). TPAC and TFC showthe degradation of... |
Tipo: Anais e Proceedings de eventos |
Palavras-chave: Properties changes; Food technology; Sorghum bicolor subsp. bicolor; Kafirins; Tannins; Metabolomics. |
Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125541 |
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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 |
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Registros recuperados: 40 | |
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