Xu Tao, Huang Weisu, Liang Jiajia, Zhong Yongheng, Chen Qi, Jie Fan, Lu Baiyi
College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China.
Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China.
Food Chem X. 2021 Oct 26;12:100145. doi: 10.1016/j.fochx.2021.100145. eCollection 2021 Dec 30.
The different health effects between starch and whole flour from tubers are rarely studied. Here, we investigated the effects of cassava flour (CF), cassava starch (CS), potato flour (PF), and potato starch (PS) on gut health and gut microbiota of normal rats. Feed analysis showed that CF and PF diet provided significantly more slowly digestible and resistant starch, less rapidly digestible starch. Compared with rats fed with PS and CS diets, rats fed with PF and CF diets gained less body weight and have tighter intestinal barrier. Butyric acid contents were increased by tuber flours. CF and PF selectively promoted the relative abundance of and in cecal and colonic content. In conclusion, tuber flour has intestinal protection, body weight control, and gut microbiota improving ability compared with starch. The different composition of starch might be the basis for these effects.
块茎淀粉和全麦粉对健康的不同影响鲜有研究。在此，我们研究了木薯粉（CF）、木薯淀粉（CS）、马铃薯粉（PF）和马铃薯淀粉（PS）对正常大鼠肠道健康和肠道微生物群的影响。饲料分析表明，CF和PF日粮提供的慢消化淀粉和抗性淀粉显著更多，快速消化淀粉更少。与喂食PS和CS日粮的大鼠相比，喂食PF和CF日粮的大鼠体重增加较少，肠道屏障更紧密。块茎粉可提高丁酸含量。CF和PF选择性地促进盲肠和结肠内容物中[具体微生物名称未给出]的相对丰度。总之，与淀粉相比，块茎粉具有肠道保护、体重控制和改善肠道微生物群的能力。淀粉组成的差异可能是这些作用的基础。
