【摘要】 抗性淀粉具有膳食纤维所不能及的生理功能和加工特性,是近年来变性淀粉和功能食品研究的热点,其定量分析方法目前仍没有统一的标准。文中选用了3种比较有代表性的抗性淀粉(RS)测定方法:TSA法、Berry法和Goni法,对青香蕉、生马铃薯和玉米淀粉3种原料中的RS和总淀粉含量的测定进行了比较。结果表明:Goni法模拟了人体胃肠道的生理条件,具有重复性好,操作简单等明显优势而更适合于富含抗性淀粉颗粒的青香蕉原料中RS含量的测定,用该法测得的RS含量为80.12%,其中RS2占96.63%。更多还原

【Abstract】 There are great economic and social benefits to study the resistant starch,which is the hot top- ic on denaturation starch and functional food in these years.The method of determination hasn’t unified standardization yet.In this article three typical methods,TSA,Berry and Goni,were used to determine and compare the content of the resistant starch of green bananas,green potato and corn starch.The results showed that Goni was the most suitable one for the determination of the materials like green bananas and po- tatoes that were rich in resistant starch granules.It had good simulating in the condition of gastrointestinal tract,good reproducibility and simple procure.The content of resistant starch of green banana was 80.12% determined by Goni,among which 96.63% was RS₂.更多还原