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| Registros recuperados: 22 | |
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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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| 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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| 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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| 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 |
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| 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 |
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| 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 |
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| 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<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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 22 | |
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