Understanding the digestibility and nutritional functions of rice starch subjected to heat-moisture treatment. (June 2018)

• Record Type: Journal Article
• Authors: Zheng, Bo; Wang, Hongwei; Shang, Wenting; Xie, Fengwei; Li, Xiaoxi; Chen, Ling; Zhou, Zhongkai
• Is Part Of: Journal of functional foods. Volume 45(2018)
• Page Start: 165
• Page End: 172
• Publication Date: 2018-06
• Subjects: SDS slowly digestible starch -- HMT heat-moisture treatment -- RDS rapidly digestible starch -- RS resistant starch -- TG triglyceride -- TCH total cholesterol -- HDL-c high-density lipoprotein cholesterol -- LDL-c low-density lipoprotein cholesterol -- MDA Malondialdehyde -- SOD Superoxide dismutase -- GSH-PX Glutathione peroxidase -- T-AOC Total antioxidant capacity -- ALT alanine aminotransferase -- ALP alkaline phosphatase -- AST aspartate aminotransferase -- OTUs Operational Taxonomic Units; Rice starch -- Heat-moisture treatment -- Digestibility -- Nutritional functions -- Intestinal microflora; Functional foods -- Analysis -- Periodicals; Food -- Biotechnology -- Periodicals; Nutrition -- Periodicals; 613.2
• DOI: 10.1016/j.jff.2018.03.041
• Languages: English
• ISSNs: 1756-4646

Abstract

Highlights: HMT-modified rice starch had worse performance in controlling physiological indices. HMT-modified rice starch reduced intestinal species abundance. Bifidobacteria was a typical bacteria related to HMT-modified rice starch. HMT-modified rice starch helped modulate nutritional function pathways. Abstract: In this study, rice starch with well-controlled digestion resistibility achieved by heat-moisture treatment (HMT) was chosen as a supplementary diet for high-fat-diet-fed mice. Then, the nutritional functions of HMT-modified rice starch were evaluated by the physiological and biochemical indices, proliferation and distribution of intestinal microflora, and functional diversity by putative metagenomes analysis. Compared with the native-rice-starch mice (DM) group, the blood glucose, serum lipid, oxidative stress, and liver function metabolic levels/indices of the HMT-rice-starch mice (HMT-DM) group were worse due to the declined level of slowly digestible starch (SDS) in HMT-modified rice starch. Meanwhile, the species diversity index was observed to be higher in the DM group and Bifidobacteria was identified as a type of bacteria related to the relatively higher content of RS in HMT-modified rice starch. Overall, our results provide important information for the rational design of rice starch-based health-promoting foods with nutritional functions.