以甜菊 ( Stevia rebaudiana Bertoni)的干叶为原料生产的甜菊糖甙是一种食用天然甜味剂。提高甜菊糖甙 ( Steviosides)中优质甜味成分 R-A(甜菊 A3甙: Rebaudioside A)的含量比例是生产中急待解决的课题。 本文以 R-A型和 St (甜菊甙 Stevioside)型甜菊叶为原料 ,采用 A和 B两种方法进行甜菊糖甙的提取 ,通过 B法获得 R-A含量比例高的甜菊糖甙即 R-A型甜菊糖甙 ,为甜菊糖
甙产品优质化提供了新方法、新技术。
 

Steviosides made from air-dried leaves o f Stevia rebaudiana Bertoni is a edible natural no n-toxic and low calo rie sw eetener. Increasing the percentag e of R-A ( Rebaudio side A) in steviosides is a pressing pro blem in production. Two methods ( A and B) for the extraction of steviosides from type St ( Stevioside) and type R-A plant materials were investigated. The results showed that the good quality steviosides containing high percentage of R-A can be produced by only process B. It will provide a new way and new technological method for improving quality of steviosides production.