田菁胶提取方法及其特性的研究

A New Method for Extracting Sesbania Cannabina Gum

摘要:

本文探讨了提取田菁胶的新方法,这种方法不需经过胚乳的分离而是直接从田菁籽中经浸泡软化、组织捣碎、乙醇沉淀和真空干燥而得。试验结果表明:用0.01%NaHSO_3溶液浸泡,捣碎8分钟,加水量为40毫升/克田菁籽,乙醇为20毫升/克田菁籽,则田菁籽中田昔胶的回收率为83.3%,与干法磨胚而得的田菁胶相比,其粘度增加5倍,水不溶物含量降低75%,本文研究了该田昔肢的流变性以及在溶剂分级后不同产品的性质,研究了田菁胶与瓜尔胶,羧甲基纤维素纳(CMC)的共混效应,结果表明田菁胶与CMC以4:6混合可得到粘度提高64%的均匀共混物。

Abstract:

On the basis of previous technology, a new method for extracting gum from the endosperm of sesbania cannabina (S. C.) seed was tested, in which gum was extracted directly from S. C. seed rather than after separation of the endosperm from the seed. The pro