TITLE

Effects of feeding potato pulp on cholesterol metabolism and its association with cecal conditions in rats

AUTHOR(S)
Hashimoto, Naoto; Nakamura, Yumi; Noda, Takahiro; Han, Kyu-Ho; Fukushima, Michihiro
PUB. DATE
December 2011
SOURCE
Plant Foods for Human Nutrition;Dec2011, Vol. 66 Issue 4, p401
SOURCE TYPE
Academic Journal
DOC. TYPE
journal article
ABSTRACT
To clarify the functional properties of potato pulp (PP), a waste product resulting from extraction of starch from potatoes, we examined the effects of PP on cholesterol metabolism and cecal conditions in rats. Plasma total cholesterol (T-Chol) levels were lower in rats fed a PP-supplemented diet for four weeks than in those fed a control diet. Cecal pH was lowered due to an increase in the levels of cecal total short-chain fatty acids, especially butyrate, in the PP group compared to the control group. Furthermore, animals fed with the PP-supplemented diet showed increased cecal ratios of Lactobacillus and Clostridia and decreased cecal ratios of Bacteroides and Gammaproteobacteria with slightly negative and positive correlations with plasma T-Chol levels, respectively. In conclusion, ingestion of PP for four weeks is likely to improve both cecal conditions and cholesterol metabolism, suggesting that PP has prebiotic effects.
ACCESSION #
69532563

 

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