关键词: 难消化淀粉, 生理功能, 应用

Abstract: Enzyme－ resistant starch (RS) refers to starch that is indigestible in small intestine and is fermented in colon by micro biota.Compared with non－ starch polysaccharides,RS has had higher fermentation rate (almost completely fermented) and produced more butyric acid when fermented in colon.RSintake could lower postprandial serum glucose and HDL cholesterol,protect against colon cancer and colitis,and promote the growth of probiotics.Its physiscal properties were found similar to those of common starch and the addition of RS would not change the color and texture of foods.Today,many kinds of RS－ fortified foods have been prepared for consumers such as bread,buns,breakfast cereals,extruded foods,snacks,pasta,biscuits,yoghurt,ice cream,confectionary and beverages etc.

Key words:  , Enzyme－ resistant starch Physiological function Application；