Qi Xiaozhe, Xu Wentao, Guo Mingzhang, Chen Siyuan, Liu Yifei, He Xiaoyun, Huang Kunlun
a Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering , China Agricultural University , Beijing , China.
b Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering , China Agricultural University , Beijing , China.
Int J Food Sci Nutr. 2017 Nov;68(7):829-839. doi: 10.1080/09637486.2017.1301889. Epub 2017 Mar 20.
Rice is the most important food crop, and pork is the most widely eaten meat in the world. In this study, we compared the gut microbiota of the rats fed with rice or pork mixed diets, which have similar caloric contents. The physiological indices (body weights, hematology, serum chemistry, organ weights and histopathology) of two groups were all within the normal range. Two diets did not induce difference in the diversity of gut bacteria. However, Firmicutes were significantly higher in rice diet group, while Bacteroidetes were enriched in pork diet group. Butyrate and the bacteria enzymes β-glucuronidase, β-glucosidase and nitroreductase in the feces were all drastically higher in pork diet group. This study indicates that different diets with similar calorie and nutritional composition could change the community structure but not the diversity of rat fecal microbiota.
水稻是最重要的粮食作物，而猪肉是全球食用最为广泛的肉类。在本研究中，我们比较了喂食热量相似的大米或猪肉混合日粮的大鼠的肠道微生物群。两组的生理指标（体重、血液学、血清化学、器官重量和组织病理学）均在正常范围内。两种日粮并未引起肠道细菌多样性的差异。然而，厚壁菌门在大米日粮组中显著更高，而拟杆菌门在猪肉日粮组中更为富集。猪肉日粮组粪便中的丁酸盐以及细菌酶β-葡萄糖醛酸酶、β-葡萄糖苷酶和硝基还原酶均显著更高。本研究表明，热量和营养成分相似的不同日粮可改变大鼠粪便微生物群的群落结构，但不会改变其多样性。
