Efficient Extraction of Tea Saponin from Tea Seed Meals by ^(60)Coγ-Irradiation  

^(60)Co-γ射线高效提取茶籽粕中的茶皂素

作　　者：GUO Feng LI Hong-gao ZHANG Yong WANG Xun-huai 张乐平;邵赛;赵彩凤;谢洪科;周毅吉;张跃龙;郭峰;李宏告;张勇;王训怀(湖南省核农学与航天育种研究所,湖南长沙410000)

机构地区：[1]Hunan Institute of Nuclear Agricultural Science and Space Breeding,Hunan Academy of Agricultural Sciences,Changsha 410000,PRC

出　　处：《Agricultural Science & Technology》2021年第3期22-28,共7页农业科学与技术（英文版）

基　　金：湖南省农业科技创新基金项目(2019JG03);长沙市自然科学基金(kq2014164);湖南省农业科技创新资金项目(2020CX45)。

摘　　要：In order to simplify the extraction process of tea saponin and improve its extraction rate,tea seed meals was taken as materials to explore effects of ^(60)Coγ-irradiation and H_(2)O_(2) on the extraction rate of tea saponin.The results showed that the optimal crude extract condition of tea saponin was 6%H_(2)O_(2) and an irradiation dose of 5 kGy,the extraction rate was 46.4%.However,when the irradiation dose and the H_(2)O_(2) concentration continued to increase,the extraction rate of tea saponin decreased.After flocculate extraction,the tea saponin content increased from 40.80%to 48.32%.Foaming property test results showed that the higher the tea saponin content in the solution was,the higher the foaming height will be,and the foam had a certain stability.This work provided a new method for the extraction of natural products,usingγ-ray irradiation and H_(2)O_(2) pretreatment to improve the extraction rate,and this was of great significance for industrial extraction.为简化茶皂素提取过程和提高其提取率,以茶籽粕为材料,探究^(60)Co-γ射线辐照和双氧水预处理对茶皂素提取率的影响。结果表明:茶皂素最佳提取条件为:辐照剂量5 kGy,双氧水浓度6%,粗提取率可达46.4%;随着辐照剂量和双氧水浓度的继续增加,茶皂素的提取率降低;絮凝萃取后,当辐照剂量为5 kGy,双氧水浓度为6%时,茶皂素的含量从40.80%提高到了48.32%;发泡试验结果表明溶液中茶皂素含量越高,发泡高度越高,并且其发泡性能具有一定的稳定性。因此,γ射线与双氧水能有效提高茶皂素的提取率,在工业提取中具有重要意义。

关 键 词：Tea seed meals Tea saponin ^(60)Coγ-irradiation EXTRACTION FOAMABILITY 

分 类 号：TQ28[化学工程—有机化工]