Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/40014
metadata.artigo.dc.title: Quantification of Tannins from Curupay Bark
metadata.artigo.dc.creator: Sousa, Thaís Brito
Souza, Sebastião Gabriel
Franco, Thayane Batistão Bondioli
Jesus, Márcia Silva de
Mori, Fábio Akira
metadata.artigo.dc.subject: Anadenanthera peregrina
Stiasny index
metadata.artigo.dc.publisher: Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
metadata.artigo.dc.date.issued: 2019
metadata.artigo.dc.identifier.citation: SOUSA, T. B. et al. Quantification of Tannins from Curupay Bark. Floresta e Ambiente, Seropédica, v. 26, n. 1, 2019.
metadata.artigo.dc.description.abstract: This study aimed to assess the influence of time and sodium sulfite concentration on tannin yield in Curupay bark and propose better extraction conditions. The extractions were performed using 100 g of dried bark and 1500 mL of water at 70 °C, with extraction times of 2, 3, and 4 h and amount of extractor salt at the concentrations of 0, 1, 2, 3, and 4%. The following parameters were evaluated: content of total solids, total yield of solids, Stiasny index, and gravimetric yield of condensed tannins and non-tannins. Results show that the higher the concentration of sodium sulfite, the higher the content and yield of solids, as well as the higher the extraction of non-tannin compounds. Three-hour extraction time at 3.0% sodium sulfite concentration was the best condition to extract tannins from Curupay bark, under which a condensed tannin yield of 20.46% was obtained.
metadata.artigo.dc.identifier.uri: http://repositorio.ufla.br/jspui/handle/1/40014
metadata.artigo.dc.language: en_US
Appears in Collections:DCF - Artigos publicados em periódicos

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