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机构地区:[1]重庆大学化学化工学院化工系,重庆400030
出 处:《天然产物研究与开发》2009年第5期881-884,共4页Natural Product Research and Development
摘 要:本文用两步萃取法从菜籽粕脱毒液中提取硫代葡萄糖苷,以3,5-二硝基水杨酸比色法测定硫代葡萄糖苷含量,采用单因素试验法,分别考察可能影响硫代葡萄糖苷提取效果的各种因素,确定了最佳工艺条件:第一步萃取剂为异辛烷,母液与异辛烷体积比为2∶1,搅拌时间为30 min,异辛烷萃取次数为2次,异辛烷单次萃取率达71.2%。硫代葡萄糖苷收率为83.7%。This paper discussed the extraction of glucosinolates from rapeseed meal detoxifying solution. The content of glucosinolates was determined by 3,5-dinitrosalicylic acid colorimitry and the various factors responsible for the effect of extraction of glucosinolates were investigated respectively by single factor method. The most suitable extraction conditions were as follows:in the first step, where the volume ratio of mother solution to extractant, which was isooctane, was 2: 1, extraction yield reached 71.2% in the first extraction by isooctane. In this step, there were two extractions, each of which lasted for 30 min. The total recovery of glucosinolates was 83.7%.
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