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  1 / 3813 MEDLINE  
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[PMID]:29293513
[Au] Autor:Mkhize NR; HeitkÓ§nig IMA; Scogings PF; Hattas D; Dziba LE; Prins HHT; de Boer WF
[Ad] Endereço:Resource Ecology Group, Wageningen University, Wageningen, the Netherlands.
[Ti] Título:Seasonal regulation of condensed tannin consumption by free-ranging goats in a semi-arid savanna.
[So] Source:PLoS One;13(1):e0189626, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Although condensed tannins (CTs) are known to reduce forage intake by mammalian herbivores in controlled experiments, few studies have tested these effects in the field. Thus the role of CTs on foraging ecology of free-ranging herbivores is inadequately understood. To investigate the effects of CTs under natural savanna conditions, we pre-dosed groups of goats with polyethylene glycol (PEG, a CT-neutralising chemical), CT powder or water before observing their foraging behaviour. While accounting for the effects of season and time of the day, we tested the hypothesis that herbivores forage in ways that reduce the intake rate (g DM per minute) of CTs. We expected pre-dosing goats with CTs to reduce CT intake rates by (1) consuming diets low in CTs, (2) reducing bite rates, (3) increasing the number of foraging bouts, or (4) reducing the length of foraging bouts. Lastly, (5) expected CT to have no influence the number of dietary forage species. In both wet and dry seasons, pre-dosing goats with CTs resulted in lower CT consumption rates compared to PEG goats which seemed relieved from the stress associated with CT consumption. During dry season, the number of dietary forage species was similar across treatments, although goats that were dosed with PEG significantly increased this number in the wet season. Dosing goats with PEG increased the number and length of browsing bouts compared to goats from the other treatments. Pre-loading goats with PEG also tended to increase bite rates on browse forages, which contributed to increased consumption rates of CTs. Based on the behavioural adjustments made by goats in this study and within the constraints imposed by chemical complexity in savanna systems, we concluded that herbivores under natural conditions foraged in ways that minimised CTs consumption. More research should further elucidate the mechanism through which CTs regulated feeding behaviour.
[Mh] Termos MeSH primário: Ecossistema
Comportamento Alimentar
Cabras/metabolismo
Estações do Ano
Taninos/metabolismo
[Mh] Termos MeSH secundário: Animais
Feminino
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Tannins)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180103
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189626


  2 / 3813 MEDLINE  
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[PMID]:29313327
[Au] Autor:Chai WM; Huang Q; Lin MZ; Ou-Yang C; Huang WY; Wang YX; Xu KL; Feng HL
[Ad] Endereço:College of Life Science and Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi Normal University , Nanchang, Jiangxi 330022, People's Republic of China.
[Ti] Título:Condensed Tannins from Longan Bark as Inhibitor of Tyrosinase: Structure, Activity, and Mechanism.
[So] Source:J Agric Food Chem;66(4):908-917, 2018 Jan 31.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In this study, the content, structure, antityrosinase activity, and mechanism of longan bark condensed tannins were evaluated. The findings obtained from mass spectrometry demonstrated that longan bark condensed tannins were mixtures of procyanidins, propelargonidins, prodelphinidins, and their acyl derivatives (galloyl and p-hydroxybenzoate). The enzyme analysis indicated that these mixtures were efficient, reversible, and mixed (competitive is dominant) inhibitor of tyrosinase. What's more, the mixtures showed good inhibitions on proliferation, intracellular enzyme activity and melanogenesis of mouse melanoma cells (B ). From molecular docking, the results showed the interactions between inhibitors and tyrosinase were driven by hydrogen bond, electrostatic, and hydrophobic interactions. In addition, high levels of total phenolic and extractable condensed tannins suggested that longan bark might be a good source of tyrosinase inhibitor. This study would offer theoretical basis for the development of longan bark condensed tannins as novel food preservatives and medicines of skin diseases.
[Mh] Termos MeSH primário: Inibidores Enzimáticos/farmacologia
Monofenol Mono-Oxigenase/antagonistas & inibidores
Casca de Planta/química
Sapindaceae/química
Taninos/química
Taninos/farmacologia
[Mh] Termos MeSH secundário: Animais
Antocianinas/farmacologia
Biflavonoides/farmacologia
Catequina/farmacologia
Proliferação Celular/efeitos dos fármacos
Ligações de Hidrogênio
Interações Hidrofóbicas e Hidrofílicas
Espectrometria de Massas
Melaninas/análise
Melaninas/antagonistas & inibidores
Melaninas/biossíntese
Melanoma Experimental
Camundongos
Modelos Moleculares
Simulação de Acoplamento Molecular
Oxirredutases
Parabenos/farmacologia
Proantocianidinas/farmacologia
Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz
Eletricidade Estática
Relação Estrutura-Atividade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthocyanins); 0 (Biflavonoids); 0 (Enzyme Inhibitors); 0 (Melanins); 0 (Parabens); 0 (Proanthocyanidins); 0 (Tannins); 4852-22-6 (procyanidin); 8R1V1STN48 (Catechin); EC 1.- (Oxidoreductases); EC 1.14.18.- (monophenolase); EC 1.14.18.1 (Monophenol Monooxygenase); EM6MD4AEHE (delphinidin); JG8Z55Y12H (4-hydroxybenzoic acid)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180110
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b05481


  3 / 3813 MEDLINE  
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[PMID]:29304153
[Au] Autor:Barszcz M; Taciak M; Tusnio A; Skomial J
[Ad] Endereço:Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jablonna, Poland.
[Ti] Título:Effects of dietary level of tannic acid and protein on internal organ weights and biochemical blood parameters of rats.
[So] Source:PLoS One;13(1):e0190769, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Tannic acid (TA) is a polyphenolic compound with a health-promoting potential for humans. It is hypothesised that TA effects on the relative weight of internal organs and biochemical blood indices are modified by dietary protein level in rats. The study involved 72 rats divided into 12 groups fed diets with 10 or 18% of crude protein (CP) and supplemented with 0, 0.25, 0.5, 1, 1.5 or 2% of TA. After 3 weeks of feeding, the relative weight of the caecum was greater in rats fed TA diets, while feeding diets with 10% of CP increased the relative weight of the stomach, small intestine and caecum, but decreased that of kidneys and spleen. Albumin concentration was higher in rats fed 0.25% and 0.5% TA diets than in rats given the 2% TA diets. The 2% TA diets reduced creatine kinase (CK) activity compared to non-supplemented diets and those with 0.5, 1 and 1.5% of TA. Rats fed the 10% CP diets had a higher activity of alkaline phosphatase, amylase, and γ-glutamyltransferase as well as the concentration of iron and cholesterol, but lower that of urea and uric acid. The interaction affected only cholinesterase activity. In conclusion, TA induced caecal hypertrophy and could act as a cardioprotective agent, as demonstrated by reduced CK activity, but these effects were not modified by dietary protein level.
[Mh] Termos MeSH primário: Dieta
Proteínas na Dieta
Taninos
[Mh] Termos MeSH secundário: Animais
Ceco/anatomia & histologia
Colesterol/sangue
Colinesterases/sangue
Creatina Quinase/sangue
Intestino Delgado/anatomia & histologia
Rim/anatomia & histologia
Masculino
Tamanho do Órgão
Ratos Endogâmicos WF
Albumina Sérica
Baço/anatomia & histologia
Estômago/anatomia & histologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Dietary Proteins); 0 (Serum Albumin); 0 (Tannins); 97C5T2UQ7J (Cholesterol); EC 2.7.3.2 (Creatine Kinase); EC 3.1.1.8 (Cholinesterases)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180210
[Lr] Data última revisão:
180210
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180106
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190769


  4 / 3813 MEDLINE  
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[PMID]:28744731
[Au] Autor:Heroy KY; St Clair SB; Burritt EA; Villalba JJ
[Ad] Endereço:Department of Wildland Resources, Utah State University, Logan, 84322-5230, USA. Kristen.heroy@aggiemail.usu.edu.
[Ti] Título:Plant Community Chemical Composition Influences Trembling Aspen (Populus tremuloides) Intake by Sheep.
[So] Source:J Chem Ecol;43(8):817-830, 2017 Aug.
[Is] ISSN:1573-1561
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Nutrients and plant secondary compounds in aspen (Populus tremuloides) may interact with nutrients in the surrounding vegetation to influence aspen use by herbivores. Thus, this study aimed to determine aspen intake and preference by sheep in response to supplementary nutrients or plant secondary compounds (PSC) present in aspen trees. Thirty-two lambs were randomly assigned to one of four molasses-based supplementary feeds to a basal diet of tall fescue hay (N = 8) during three experiments. The supplements were as follows: (1) high-protein (60% canola meal), (2) a PSC (6% quebracho tannins), (3) 25% aspen bark, and (4) control (100% molasses). Supplements were fed from 0700 to 0900, then lambs were fed fresh aspen leaves collected from stands containing high (Experiment 1, 2) or low (Experiment 3) concentrations of phenolic glycosides (PG). In Experiment 2, lambs were simultaneously offered aspen, a forb (Lathyrus pauciflorus), and a grass (Bromus inermis) collected from the aspen understory. Animals supplemented with high protein or tannins showed greater intake of aspen leaves than animals supplemented with bark or the control diet (P < 0.05), likely because some condensed tannins have a positive effect on protein nutrition and protein aids in PSC detoxification. Overall, animals supplemented with bark showed the lowest aspen intake, suggesting PSC in bark and aspen leaves had additive inhibitory effects on intake. In summary, these results suggest that not only the concentration but also the types and proportions of nutrients and chemical defenses available in the plant community influence aspen use by herbivores.
[Mh] Termos MeSH primário: Dieta
Populus/química
[Mh] Termos MeSH secundário: Animais
Cromatografia Líquida de Alta Pressão
Glicosídeos/análise
Glicosídeos/farmacologia
Herbivoria/efeitos dos fármacos
Casca de Planta/química
Casca de Planta/metabolismo
Folhas de Planta/química
Folhas de Planta/metabolismo
Proteínas de Plantas/farmacologia
Populus/metabolismo
Ovinos
Espectrofotometria
Taninos/análise
Taninos/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Glycosides); 0 (Plant Proteins); 0 (Tannins)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171229
[Lr] Data última revisão:
171229
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170727
[St] Status:MEDLINE
[do] DOI:10.1007/s10886-017-0872-6


  5 / 3813 MEDLINE  
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[PMID]:28841421
[Au] Autor:Tintino SR; Morais-Tintino CD; Campina FF; Costa MDS; Menezes IRA; de Matos YMLS; Calixto-Júnior JT; Pereira PS; Siqueira-Junior JP; Leal-Balbino TC; Coutinho HDM; Balbino VQ
[Ad] Endereço:Laboratory of Microbiology and Molecular Biology (LMBM), Department of Biological Chemistry/CCBS/URCA, Brazil.
[Ti] Título:Tannic acid affects the phenotype of Staphylococcus aureus resistant to tetracycline and erythromycin by inhibition of efflux pumps.
[So] Source:Bioorg Chem;74:197-200, 2017 Oct.
[Is] ISSN:1090-2120
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The widespread use of antibiotics created selective pressure for the emergence of strains that would persist despite antibiotic toxicity. The bacterial resistance mechanisms are several, with efflux pumps being one of the main ones. These pumps are membrane proteins with the function of removing antibiotics from the cell cytoplasm. Due to this importance, the aim of this work was to evaluate the inhibitory effect of tannic acid against efflux pumps expressed by the Staphylococcus aureus RN4220 and IS-58 strains. The efflux pump inhibition was assayed using a sub-inhibitory concentration of efflux pump standard inhibitors and tannic acid (MIC/8), observing their capacity to decrease the MIC of Ethidium bromide (EtBr) and antibiotics due the possible inhibitory effect of these substances. The MICs of EtBr and antibiotics were significantly different in the presence of tannic acid, indicating the inhibitory effect of this product against efflux pumps of both strains. These results indicate the possible usage of tannic acid asan inhibitor and an adjuvant in the antibiotic therapy against multidrug resistant bacteria (MDR).
[Mh] Termos MeSH primário: Antibacterianos/farmacologia
Farmacorresistência Bacteriana/efeitos dos fármacos
Eritromicina/farmacologia
Staphylococcus aureus/efeitos dos fármacos
Taninos/farmacologia
Tetraciclina/farmacologia
[Mh] Termos MeSH secundário: Antibacterianos/química
Relação Dose-Resposta a Droga
Farmacorresistência Bacteriana/genética
Eritromicina/química
Testes de Sensibilidade Microbiana
Estrutura Molecular
Fenótipo
Staphylococcus aureus/genética
Relação Estrutura-Atividade
Taninos/química
Tetraciclina/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Tannins); 63937KV33D (Erythromycin); F8VB5M810T (Tetracycline)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170826
[St] Status:MEDLINE


  6 / 3813 MEDLINE  
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[PMID]:28827842
[Au] Autor:Matsumura Y; Kitabatake M; Ouji-Sageshima N; Yasui S; Mochida N; Nakano R; Kasahara K; Tomoda K; Yano H; Kayano SI; Ito T
[Ad] Endereço:Department of Immunology, Nara Medical University, Kashihara, Nara, Japan.
[Ti] Título:Persimmon-derived tannin has bacteriostatic and anti-inflammatory activity in a murine model of Mycobacterium avium complex (MAC) disease.
[So] Source:PLoS One;12(8):e0183489, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Nontuberculous mycobacteria (NTM), including Mycobacterium avium complex (MAC), cause opportunistic chronic pulmonary infections. Notably, MAC susceptibility is regulated by various factors, including the host immune system. Persimmon (Ebenaceae Diospyros kaki Thunb.) tannin is a condensed tannin composed of a polymer of catechin groups. It is well known that condensed tannins have high antioxidant activity and bacteriostatic properties. However, it is hypothesized that condensed tannins might need to be digested and/or fermented into smaller molecules in vivo prior to being absorbed into the body to perform beneficial functions. In this study, we evaluated the effects of soluble persimmon-derived tannins on opportunistic MAC disease. Soluble tannins were hydrolyzed and evaluated by the oxygen radical absorbance capacity (ORAC) method. The ORAC value of soluble tannin hydrolysate was approximately five times greater than that of soluble tannin powder. In addition, soluble tannin hydrolysate exhibited high bacteriostatic activity against MAC in vitro. Furthermore, in an in vivo study, MAC infected mice fed a soluble tannin-containing diet showed significantly higher anti-bacterial activity against MAC and less pulmonary granuloma formation compared with those fed a control diet. Tumor necrosis factor α and inducible nitric oxide synthase levels were significantly lower in lungs of the soluble tannin diet group compared with the control diet group. Moreover, proinflammatory cytokines induced by MAC stimulation of bone marrow-derived macrophages were significantly decreased by addition of soluble tannin hydrolysate. These data suggest that soluble tannin from persimmons might attenuate the pathogenesis of pulmonary NTM infection.
[Mh] Termos MeSH primário: Antibacterianos/uso terapêutico
Diospyros/química
Modelos Animais de Doenças
Inflamação/tratamento farmacológico
Infecção por Mycobacterium avium-intracellulare/tratamento farmacológico
Taninos/uso terapêutico
[Mh] Termos MeSH secundário: Animais
Feminino
Camundongos
Camundongos Endogâmicos BALB C
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Tannins)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171013
[Lr] Data última revisão:
171013
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170823
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0183489


  7 / 3813 MEDLINE  
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[PMID]:28813594
[Au] Autor:Brown RH; Mueller-Harvey I; Zeller WE; Reinhardt L; Stringano E; Gea A; Drake C; Ropiak HM; Fryganas C; Ramsay A; Hardcastle EE
[Ad] Endereço:School of Agriculture, Policy and Development, University of Reading , P O Box 236, Reading RG6 6AT, United Kingdom.
[Ti] Título:Facile Purification of Milligram to Gram Quantities of Condensed Tannins According to Mean Degree of Polymerization and Flavan-3-ol Subunit Composition.
[So] Source:J Agric Food Chem;65(36):8072-8082, 2017 Sep 13.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Unambiguous investigation of condensed tannin (CT) structure-activity relationships in biological systems requires well-characterized, high-purity CTs. Sephadex LH-20 and Toyopearl HW-50F resins were compared for separating CTs from acetone/water extracts, and column fractions analyzed for flavan-3-ol subunits, mean degree of polymerization (mDP), and purity. Toyopearl HW-50F generated fractions with higher mDP values and better separation of procyanidins (PC) and prodelphinidins (PD) but required a prepurification step, needed more time for large scale purifications, and gave poorer recoveries. Therefore, two gradient elution schemes were developed for CT purification on Sephadex LH-20 providing 146-2000 mg/fraction. Fractions were analyzed by thiolysis and NMR spectroscopy. In general, PC/PD ratios decreased and mDP increased during elution. H NMR spectroscopy served as a rapid screening tool to qualitatively determine CT enrichment and carbohydrate impurities present, guiding fractionation toward repurification or H- C HSQC NMR spectroscopy and thiolysis. These protocols provide options for preparing highly pure CT samples.
[Mh] Termos MeSH primário: Extratos Vegetais/química
Extratos Vegetais/isolamento & purificação
Plantas/química
Taninos/química
Taninos/isolamento & purificação
[Mh] Termos MeSH secundário: Estrutura Molecular
Polimerização
Espectrometria de Massas por Ionização por Electrospray
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Extracts); 0 (Tannins)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170817
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b03489


  8 / 3813 MEDLINE  
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[PMID]:28806951
[Au] Autor:Kalmobé J; Ndjonka D; Boursou D; Vildina JD; Liebau E
[Ad] Endereço:Department of Biological Sciences, Faculty of Science, University of Ngaoundéré, PO, Box 454, Ngaoundéré, Cameroon.
[Ti] Título:Phytochemical analysis and in vitro anthelmintic activity of Lophira lanceolata (Ochnaceae) on the bovine parasite Onchocerca ochengi and on drug resistant strains of the free-living nematode Caenorhabditis elegans.
[So] Source:BMC Complement Altern Med;17(1):404, 2017 Aug 14.
[Is] ISSN:1472-6882
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Onchocerciasis is one of the tropical neglected diseases (NTDs) caused by the nematode Onchocerca volvulus. Control strategies currently in use rely on mass administration of ivermectin, which has marked activity against microfilariae. Furthermore, the development of resistance to ivermectin was observed. Since vaccine and safe macrofilaricidal treatment against onchocerciasis are still lacking, there is an urgent need to discover novel drugs. This study was undertaken to investigate the anthelmintic activity of Lophira lanceolata on the cattle parasite Onchocerca ochengi and the anthelmintic drug resistant strains of the free living nematode Caenorhabditis elegans and to determine the phytochemical profiles of the extracts and fractions of the plants. METHODS: Plant was extracted in ethanol or methanol-methylene chloride. O. ochengi, C. elegans wild-type and C. elegans drug resistant strains were cultured in RPMI-1640 and NGM-agar respectively. Drugs diluted in dimethylsulphoxide/RPMI or M9-Buffer were added in assays and monitored at 48 h and 72 h. Worm viability was determined by using the MTT/formazan colorimetric method. Polyphenol, tannin and flavonoid contents were determined by dosage of gallic acid and rutin. Acute oral toxicity was evaluated using Swiss albino mice. RESULTS: Ethanolic and methanolic-methylene chloride extracts killed O. ochengi with LC values of 9.76, 8.05, 6.39 µg/mL and 9.45, 7.95, 6.39 µg/mL respectively for leaves, trunk bark and root bark after 72 h. The lowest concentrations required to kill 50% of the wild-type of C. elegans were 1200 and 1890 µg/mL with ethanolic crude extract, 1000 and 2030 µg/mL with MeOH-CH Cl for root bark and trunk bark of L. lanceolata, respectively after 72 h. Leave extracts of L. lanceolata are lethal to albendazole and ivermectin resistant strains of C. elegans after 72 h. Methanol/methylene chloride extracted more metabolites. Additionally, extracts could be considered relatively safe. CONCLUSION: Ethanolic and methanolic-methylene chloride crude extracts and fractions of L. lanceolata showed in vitro anthelmintic activity. The extracts and fractions contained polyphenols, tannins, flavonoids and saponins. The mechanism of action of this plant could be different from that of albendazole and ivermectin. These results confirm the use of L. lanceolata by traditional healers for the treatment of worm infections.
[Mh] Termos MeSH primário: Anti-Helmínticos/farmacologia
Caenorhabditis elegans
Infecções por Nematoides/parasitologia
Ochnaceae/química
Onchocerca
Extratos Vegetais/farmacologia
[Mh] Termos MeSH secundário: Albendazol/farmacologia
Animais
Bovinos
Resistência a Medicamentos
Flavonoides/análise
Flavonoides/farmacologia
Ivermectina/farmacologia
Camundongos
Infecções por Nematoides/veterinária
Oncocercose/parasitologia
Oncocercose/veterinária
Fitoterapia
Casca de Planta
Extratos Vegetais/química
Raízes de Plantas
Caules de Planta
Polifenóis/análise
Polifenóis/farmacologia
Saponinas/análise
Saponinas/farmacologia
Taninos/análise
Taninos/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthelmintics); 0 (Flavonoids); 0 (Plant Extracts); 0 (Polyphenols); 0 (Saponins); 0 (Tannins); 70288-86-7 (Ivermectin); F4216019LN (Albendazole)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170901
[Lr] Data última revisão:
170901
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170816
[St] Status:MEDLINE
[do] DOI:10.1186/s12906-017-1904-z


  9 / 3813 MEDLINE  
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[PMID]:28789914
[Au] Autor:Pham CH; Saggar S; Vu CC; Tate KR; Tran TTT; Luu TT; Ha HT; Nguyen HLT; Sommer SG
[Ad] Endereço:Ministry of Agriculture and Rural Development, National Institute of Animal Sciences, Hanoi 10000, Viet Nam. Electronic address: PhamC@landcareresearch.co.nz.
[Ti] Título:Biogas production from steer manures in Vietnam: Effects of feed supplements and tannin contents.
[So] Source:Waste Manag;69:492-497, 2017 Nov.
[Is] ISSN:1879-2456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In developing countries, the simple biogas digesters installed underground without heating or stirring are seen as a 'green' technology to convert animal waste into biogas, a source of bio-energy. However, quantitative estimates of biogas production of manures from steers fed local feed diets at actual incubation temperatures have yet to be carried out. The aim of this study was to determine the methane (CH ) production potential of manures from steers in Vietnam offered traditional feed rations or supplemental diets. Biochemical CH production (BMP) was measured in batch tests at 30°C using manures collected from two different experiments of steers fed diets containing feed supplements. BMP was 110.1 (NLkg VS) for manure from steers receiving a control diet, significantly lower 79.0 (NL kg VS) for manure from steers fed a diet containing 0.3% tannin (%DM), but then showed an increasing trend to 90.9 and 91.2 (NL kg VS) for manures from steers receiving 0.4 and 0.5% tannin (%DM) supplements, respectively. Similarly, the CH production (NL kg VS) of manure from steers was 174 for control, 142 for control supplemented concentrate (C), 143 for control added rice straw treated with urea (R), and 127 for control supplemented C and R. Our results show there was a decrease in CH emissions from steer manures through using supplemented rations.
[Mh] Termos MeSH primário: Ração Animal/análise
Criação de Animais Domésticos/métodos
Metano/análise
[Mh] Termos MeSH secundário: Animais
Bovinos
Dieta
Suplementos Nutricionais
Esterco
Metano/biossíntese
Taninos
Vietnã
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Manure); 0 (Tannins); OP0UW79H66 (Methane)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171108
[Lr] Data última revisão:
171108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170810
[St] Status:MEDLINE


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[PMID]:28764071
[Au] Autor:Zhang N; Liu X; Jin X; Li C; Wu X; Yang S; Ning J; Yanne P
[Ad] Endereço:College of Information Engineering, Northwest A&F University, Yangling 712100, China.
[Ti] Título:Determination of total iron-reactive phenolics, anthocyanins and tannins in wine grapes of skins and seeds based on near-infrared hyperspectral imaging.
[So] Source:Food Chem;237:811-817, 2017 Dec 15.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Phenolics contents in wine grapes are key indicators for assessing ripeness. Near-infrared hyperspectral images during ripening have been explored to achieve an effective method for predicting phenolics contents. Principal component regression (PCR), partial least squares regression (PLSR) and support vector regression (SVR) models were built, respectively. The results show that SVR behaves globally better than PLSR and PCR, except in predicting tannins content of seeds. For the best prediction results, the squared correlation coefficient and root mean square error reached 0.8960 and 0.1069g/L (+)-catechin equivalents (CE), respectively, for tannins in skins, 0.9065 and 0.1776 (g/L CE) for total iron-reactive phenolics (TIRP) in skins, 0.8789 and 0.1442 (g/L M3G) for anthocyanins in skins, 0.9243 and 0.2401 (g/L CE) for tannins in seeds, and 0.8790 and 0.5190 (g/L CE) for TIRP in seeds. Our results indicated that NIR hyperspectral imaging has good prospects for evaluation of phenolics in wine grapes.
[Mh] Termos MeSH primário: Vitis
[Mh] Termos MeSH secundário: Antocianinas
Ferro
Fenol
Sementes
Taninos
Vinho
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthocyanins); 0 (Tannins); 339NCG44TV (Phenol); E1UOL152H7 (Iron)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170803
[St] Status:MEDLINE



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