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. 2016 Mar 31;25(Suppl 1):153–156. doi: 10.1007/s10068-016-0112-9

Consumption of lily bulb modulates fecal ratios of firmicutes and bacteroidetes phyla in rats fed a high-fat diet

Yukako Okazaki 1,✉, Ayaka Sekita 1, Hideyuki Chiji 1, Norihisa Kato 2
PMCID: PMC6049420  PMID: 30263500

Abstract

It has been recently suggested a high ratio of fecal Firmicutes and reduction in the Bacteroidetes in obese animals. This study investigated the effect of dietary lily bulb (LB) on fecal Firmicutes and Bacteroidetes in rats fed a high-fat (HF) diet. In experiment 1, rats were fed an HF diet with or without 7% raw (R) or steamed (S) LB. In experiment 2, rats were fed the HF diet with or without 7% RLB, 0.9% ethanol extract of LB, or 6.1% ethanol extract residue of LB. In experiment 1, fecal Firmicutes was reduced and Bacteroidetes was increased in both the RLB and SLB groups. In experiment 2, the fecal Firmicutes/Bacteroidetes ratio was not affected by the ethanol extract or ethanol extract residue of LB. These results suggest that LB in its entirety modulates colonic microflora, regardless of heat treatment.

Keywords: lily bulb, high-fat diet, fecal microflora, colonic environment, rats

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