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Identification of new oxidation markers of grape-condensed tannins by UPLC-MS analysis after chemical depolymerization

机译:化学解聚后通过UPLC-MS分析鉴定葡萄缩合单宁酸的新氧化标记

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摘要

Model solutions of oxidized monomer/dimer mixtures of flavan-3-ol (EC/B2, EGC/B2, ECG/B2, EGCG/B2) were studied after chemical depolymerization by UPLC-MS. New oxidation markers of condensed tannins were identified. This analytical method was applied to a wine sample and most of these oxidized markers were detected. This method will permit following the oxidation state of tannins during the winemaking process and storage in order to improve the quality of the products. (C) 2015 Elsevier Ltd. All rights reserved.
机译:通过UPLC-MS解聚后,研究了黄烷3-醇(EC / B2,EGC / B2,ECG / B2,EGCG / B2)的氧化单体/二聚体混合物的模型溶液。确定了缩合单宁酸的新氧化标记。将该分析方法应用于葡萄酒样品,并检测了大多数这些氧化标记。该方法将允许在酿酒过程和储存过程中遵循单宁的氧化态,以提高产品质量。 (C)2015 Elsevier Ltd.保留所有权利。

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