Progress in the Preparation of RS3 Resistant Starch by Physical Methods

Resistant starches are polysaccharides that are not digested and absorbed in the small intestine of healthy humans and are beneficial to human health. Regenerated starch (RS3), as one of the types of resistant starch, is widely used in the food industry because of its good thermal stability and low water-holding capacity. This paper reviews the factors affecting the preparation of RS3 resistant starch by ultrasonic, microwave, moist heat, and toughening on its yield, physicochemical properties, and structure of RS3 resistant starch in recent years, and provides an outlook on the current status of physical preparation of RS3 resistant starch, to provide useful references for the study of physical preparation of RS3 resistant starch and promote the practical application of physical preparation of resistant starch.