Continuously Ingesting Fructooligosaccharide Can't Maintain Rats' Gut Bifidobacterium at a High Level. Issue 11 (7th October 2015)

• Record Type: Journal Article
• Authors: Li, Shaoting; Gao, Lijuan; Chen, Long; Ou, Shiyi; Y, Wang; Peng, Xichun
• Is Part Of: Journal of food science. Volume 80:Issue 11(2015)
• Page Start: M2530
• Page End: M2534
• Publication Date: 2015-10-07
• Subjects: Bifidobacterium -- dietary fiber -- Lactobacillus -- obesity; Food -- Periodicals; Food -- Research -- Periodicals; Food -- Periodicals; Research -- Periodicals; Levensmiddelen; Voeding; 664
• DOI: 10.1111/1750-3841.13086
• Languages: English
• ISSNs: 0022-1147

Abstract

Abstract: Fructooligosaccharide (FOS) has been reported to increase Lactobacillus and Bifidobacterium populations in animal and human gut. Hence, it has been utilized to regulate the balance of gut microbiota. In this study, we compared the effects of high‐FOS (HFOS) diet on normal and obese rats' gut Lactobacillus and Bifidobacterium, with high‐soybean‐fibers (HSF) diet as control. The results showed that the level of Bifidobacterium population substantially increased at week 4 in groups of rats fed the HFOS diet ( P < 0.05), but significantly reduced to a small level at week 8 ( P < 0.05); the abundance of Lactobacillus was increased in normal rats ( P < 0.05), but decreased in obese rats ( P < 0.05). The HSF diet did not promote the growth of Lactobacillus and Bifidobacterium in rats' gut. The findings suggested that Bifidobacterium population could not be maintained at a high level when the rats continuously ingested the HFOS diet for 8 wk; additionally, Lactobacillus population could adapt to a relatively stable level with the consumption of HFOS diet.