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Effects of probiotic or prebiotic supplemented milk formulas on fecal microbiota composition of infants

Brunser, O., Figueroa, G., Gotteland, M., Haschke-Becher, E., Magliola, C., Rochat, F., Cruchet, S., Palframan, R., Gibson, G., Chauffard, F. and Haschke, F. (2006) Effects of probiotic or prebiotic supplemented milk formulas on fecal microbiota composition of infants. Asia Pacific Journal of Clinical Nutrition, 15 (3). pp. 368-376. ISSN 0964-7058

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Official URL: http://apjcn.nhri.org.tw/

Abstract/Summary

The aim of the study was to evaluate whether supplementation of milk-formulas with prebiotic fructooligosaccharides or a probiotic, Lactobacillus johnsonii La1 (La1), could modulate the composition of the fecal microbiota of formula-fed infants, compared to breastfed (BF) infants. Ninety infants close to 4 months of age were randomized into one of three groups to be blindly assigned to receive for 13 weeks: a) an infant formula (Control), b) the same formula with fructo-oligosaccharides (Prebio), or c) with La1 (Probio). At the end of this period, all infants received the control formula for 2 additional weeks. Twenty-six infants, breastfed throughout the study, were recruited to form group BF. Fecal samples were obtained upon enrolment and after 7 and 15 weeks. Bacterial populations were assessed with classical culture techniques and fluorescent in situ hybridisation (FISH). Seventy-six infants completed the study. On enrolment, higher counts of Bifidobacterium and Lactobacillus and lower counts of enterobacteria were observed in BF compared to the formula-fed infants; these differences tended to disappear at weeks 7 and 15. No major differences for Clostridium, Bacteroides or Enterococcus were observed between the groups or along the follow up. Probio increased fecal Lactobacillus counts (P<0.001); 88% of the infants in this group excreted live La1 in their stools at week 7 but only 17% at week 15. Increased Bifidobacterium counts were observed at week 7 in the 3 formula groups, similar to BF infants. These results confirm the presence of higher counts of bifidobacteria and lactobacilli in the microbiota of BF infants compared to formula-fed infants before dietary diversification, and that La1 survives in the infant digestive tract.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13530
Uncontrolled Keywords:breastfeeding, milk formula, fructooligosaccharides, infants, intestinal microbiota, Lactobacillus johnsonii La1, prebiotic, probiotic, LACTOBACILLUS-JOHNSONII LA1, IN-SITU HYBRIDIZATION, BOTTLE-FED INFANTS, INTESTINAL MICROFLORA, FERMENTED MILK, STRAIN LA1, MODULATION, FLORA, BIFIDOBACTERIUM, CELLS

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