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Reactivity of Cork Extracts with (+)-Catechin and Malvidin-3-O-glucoside in Wine Model Solutions: Identification of a New Family of Ellagitannin-Derived Compounds (Corklins)
Journal of Agricultural and Food Chemistry ( IF 6.1 ) Pub Date : 2017-09-25 00:00:00 , DOI: 10.1021/acs.jafc.7b02845
Joana Azevedo , Ana Fernandes , Joana Oliveira , Natércia F. Brás , Sofia Reis , Paulo Lopes 1 , Isabel Roseira 1 , Miguel Cabral 1 , Nuno Mateus , Victor de Freitas
Affiliation  

The aim of this study was to evaluate the reactivity of phenolic compounds extracted from cork stoppers to wine model solutions with two major wine components, namely, (+)-catechin and malvidin-3-O-glucoside. Besides the formation of some compounds already described in the literature, these reactions also yielded a new family of ellagitannin-derived compounds, named herein as corklins. This new family of compounds that were found to result from the interaction between ellagitannins in alcoholic solutions and (+)-catechin were structurally characterized by mass spectroscopy, nuclear magnetic resonance, and computational methods.

中文翻译:

葡萄酒模型溶液中软木提取物与(+)-儿茶素和Malvidin-3- O-葡萄糖苷的反应性:鉴定新的鞣花单宁衍生化合物家族(Corklins)

这项研究的目的是评估从软木塞中提取的酚类化合物对具有两种主要葡萄酒成分((+)-儿茶素和malvidin-3- O-葡萄糖苷)的葡萄酒模型溶液的反应性。除了已经在文献中描述的某些化合物的形成以外,这些反应还产生了新的鞣花单宁衍生的化合物家族,在本文中称为软木素。通过质谱,核磁共振和计算方法对这种新的化合物家族进行了结构表征,这些化合物是由乙醇溶液中的鞣花单宁与(+)-儿茶素之间的相互作用所致。
更新日期:2017-09-26
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