摘要
本文利用X-射线衍射分析法确认了各抗性淀粉中晶体的存在。结果表明,样品重新结晶效果好,结晶度比原淀粉有所提高,总结晶度及不同类型微晶含量与抗性淀粉含量呈现一定规律性:处理条件相差不大的样品,其结晶度越大,抗性淀粉含量越高,而且它们的高级微晶含量也呈现同样规律性;经完全不同条件处理的样品则不符合此规律。高级微晶与初级微晶仅根据晶体粒度大小来划分,并非高级微晶的牢固紧密程度一定大于初级微晶。
In this article, the exsitence of crystalloid was affirmed by X-ray diffraction techniques. The results indicated that theresistant Starch’s (RS) crystallinity was higher than native starch's. The degree of general crystallinity and the relation betweenthe content of different type crystallite and the content of RS presented certain rules: To the samples treated with kindred methods,the greater its crystallinity was, the higher the content of RS was, and the content of advanced crystallite was in accord with thislaw too. To the samples dealed with entirely different methods, this law wasn't available. The division of advanced crystalliteand elementary crystallite was only based on different granularity, irrespective of their compactness and firmness .
出处
《食品科学》
EI
CAS
CSCD
北大核心
2003年第7期44-47,共4页
Food Science
基金
国家自然科学基金资助项目(29906002)
