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Impact of the introduction of the complimentary foods on the population and diversity of Lactobacillus in healthy infants under different of feeding types

Khanitta Kongnum, Tipparat Hongpattarakere

Abstract


Aim: This study to investigate the effect of the introduction of complimentary food on Lactobacillus. Material and methods: the population and diversity of Lactobacillus of the exclusive breast-fed infants (EBM-1 infant and EBM-2 infant), the exclusive formula-fed infants (EFM-1 infant, EFM-2 infant) and the combination-fed infants (CBF-1 infant and CBF-2 infant) were analyzed using FISH techniques and DGGE techniques, respectively. Result: the change of Lactobacillus population in EBM-1 infant and EBM-2 infant was lower than the EFM-1 infant, EFM-2 infant, CBF-1 infant and CBF-2 infant after introduction of the complimentary foods. The population of Lactobacillus rapidly decreased in EFM-2 infant and the numbers of Lactobacillus slightly decrease in EFM-1 infant, EBM-2 infant and CBE-2 infant at 16 weeks of ages during received the complimentary foods. The population of Lactobacillus slightly decreased in infants after introduction of the complimentary foods to infants for four weeks. The introduction of complimentary food profoundly impacts on Lactobacillus of the exclusive breast-fed infants, the exclusive formula fed infants and the combination-fed infants. L. helveticus, L. acidophilus and uncultured bacterium were able to establish and more stable in infants fed with the exclusive breast milk. Uncultured bacterium, L. plantarum were invisible while, Lactobacillus sp. and uncultured Lactobacillus sp. presented in CBF-1 infant and CBF-2 infant. Uncultured Lactobacillus sp. and L. reuteri represented in EFM-1 infant, EFM-2 infant after introduction of complimentary foods. Conclusion: introduction of the complimentary foods to infants have affected on the population and diversity of Lactobacillus. 


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