Extraction of Polyphenols and Anthocyanins from the Jambul (Syzygium cumini) Fruit Peels

D. Santos, R. N. Cavalcanti, M. Rostagno, C. Queiroga, M. Eberlin, M. Angela, A. Meireles
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引用次数: 34

Abstract

In this work, the feasibility of using ultrasound alone and in combination with other techniques for the extraction of polyphenols and anthocyanins from jambul (Syzygiu mcu mini) peels was evaluated. The results were compared with conventional techniques (agitated bed and So xh let ext raction techniques) based on total extract y ields, total phenolic and monomeric anthocyanin concentrations in the extracts and the relative yields of these compounds. Ultrasound-assisted extract ion was more efficient and selective for the ext raction of anthocyanins than both conventional methods. When a combination of ultrasound and agitated bed extraction was used, a significant increase in total yields, and both polyphenol and anthocyanin concentrations was achieved. Electrospray Ionization Tandem Mass Spectrometry analysis indicated that diglycosideanthocyanins (cyanidin-3,5-dig lycoside, peonidin-3,5-dig lycoside, delphinidin-3,5-d iglycoside, petunidin-3,5-diglycoside and malvidin-3,5-diglycoside) were the main polyphenols present in the samples.
番荔枝果皮中多酚和花青素的提取
本文研究了超声单独及与其他技术结合从樟树果皮中提取多酚和花青素的可行性。以总提取率、提取物中总酚和单体花青素的浓度以及这些化合物的相对得率为指标,对所得结果与常规工艺(搅拌床法和萃取法)进行了比较。超声辅助提取离子法提取花青素的效率和选择性均高于常规方法。当超声和搅拌床萃取结合使用时,总收率显著提高,多酚和花青素浓度都得到了提高。电喷雾串联质谱分析结果表明,样品中主要含有二糖苷类多酚(花青素-3,5-dig糖苷、芍药苷-3,5-dig糖苷、飞鸽苷-3,5-d糖苷、矮花苷-3,5- dig糖苷和马柳苷-3,5- dig糖苷)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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