Bioscience and Microflora
Online ISSN : 1349-8355
Print ISSN : 1342-1441
Effect of Yogurt Containing Bifidobacterium longum BB536 on the Intestinal Environment, Fecal Characteristics and Defecation Frequenc
A Comparison with Standard Yogurt
Tomoko YAESHIMASachiko TAKAHASHINobuko MATSUMOTONorioi ISHIBASHIHirotoshi HAYASAWAHisakazu IINO
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1997 Volume 16 Issue 2 Pages 73-77

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Abstract

Yogurt containing Bifidobacterium longum BB536 (designated as Bifidus yogurt) was administered to adult volunteers and its effects on the intestinal environment with reference to fecal microflora, ammonia levels, fecal characteristics (color, consistency) and defecation frequency were examined. Bifidus yogurt was manufactured by fermenting milk with B. longum BB536, Streptococcus thermophilus STH-450 and Lactobacillus delbrueckii subsp. bulgaricus LBU-108. Standard yogurt manufactured using only S. thermophilus STH-450 and L. delbrueckii subsp. bulgaricus LBU-108 was used as the control diet. Eleven women volunteers were assigned as subjects to test the effects of Bifidus yogurt on the intestinal environment. Thirty-nine women volunteers were assigned as subjects to test the effects on fecal characteristics and defecation frequency. The volunteers were each administered 100 g of standard yogurt per day for two weeks. After a two-week interval period, each subject was administered 100 g of Bifidus yogurt per day for the subsequent test period. The period of administration of Bifidus yogurt was 2 weeks for testing effects on the intestinal environment and 3 weeks for testing effects on fecal characteristics and defecation frequency. The administration of Bifidus yogurt was effective to increase the number and relative percentage of fecal bifidobacteria significantly. The fecal ammonia concentration tended to decrease and fecal organic acid content tended to increase. The defecation frequency was significantly increased by Bifidus yogurt. The color of the feces changed to yellow and the consistency changed to soft. The administration of Bifidus yogurt was effective to improve the intestinal environment, fecal characteristics and defecation frequency.

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