期刊论文

中文

湖南农业科学

1006-060X

2015

7

94-97,101

10.16498/j.cnki.hnnykx.2015.07.028

湖南省科技计划资助项目（No.2014FJ6069）；

本校为第一机构

在利用磷钼钨酸/干酪素法测定藕节中鞣质含量的基础上,通过单因素试验和正交试验从料液比、乙醇浓度、提取温度、提取时间、提取次数等方面对藕节中鞣质类物质的乙醇提取工艺进行了优化,建立了藕节中鞣质的溶剂快速萃取方法。结果表明,在料液比1︰10、乙醇浓度80%、提取温度50℃、提取时间4.0 h的条件下,藕节中鞣质的得率平均可达1.294 8%,最高得率可达1.390 4%。该工艺操作简单方便,成本较低,适合工业化生产,为藕节中鞣质类化合物的进一步开发利用奠定了基础。

In this study, the solvent extraction method was optimized to extract tannin from Lots rhizome node. The material and solvent ratio, alcohol concentration, extraction temperature and extraction times were discussed as some main factors. The extraction efficiency was used as a measurement index. On the basis of single factor experiment, orthogonal test was designed to analyze their influence on extraction efficiency. The results indicate that the Lots rhizome node was extracted in 80% alcohol at the ratio of material to solvent 1：10 for 4.0 h u...