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Supplementation of an adapted formula with bovine lactoferrin: 1. Effect on the infant faecal flora

A K Roberts1, R Chierici, G Sawatzki

  • 1Pathology Division, Public Health Laboratory Service-Centre for Applied Microbiology and Research, Porton Down, Salisbury, UK.

Acta Paediatrica (Oslo, Norway : 1992)
|February 1, 1992
PubMed

Insights

Breastfed infants develop a beneficial gut flora rich in Bifidobacterium. Formula-fed infants showed different microbial compositions, with lactoferrin supplementation showing varied effects on infant gut microbiota development.

Area of Science:

  • Microbiology
  • Pediatrics
  • Infant Nutrition

Background:

  • The infant gut microbiome plays a crucial role in health and development.
  • Diet significantly influences the composition of the infant gut flora.
  • Understanding the impact of different feeding methods on infant microbiota is essential.

Purpose of the Study:

  • To investigate the development of infant faecal flora during the first three months of life.
  • To compare the effects of breast milk, standard formula, and modified formula diets on gut microbiota.
  • To assess the influence of lactoferrin supplementation in infant formula.

Main Methods:

  • A longitudinal study tracking infant faecal flora composition.
  • Comparison of three infant groups: breast milk-fed, standard formula-fed, and formula-fed with lactoferrin.
  • Microbiological analysis of faecal samples over the first three months of life.

Main Results:

  • Breast-fed infants exclusively developed a Bifidobacterium-rich flora.
  • Standard formula supported bifidobacteria but allowed higher levels of facultative anaerobes and obligate anaerobes (Clostridium, Bacteroides).
  • Lactoferrin at 10 mg/100 ml yielded results similar to standard formula; at 100 mg/100 ml, it partially established a bifidus flora by three months, with Clostridium and Bacteroides remaining common.

Conclusions:

  • Breast milk promotes a distinct and beneficial infant gut microbiota.
  • Standard infant formulas support bifidobacteria but alter the overall microbial profile compared to breast milk.
  • Lactoferrin supplementation has a dose-dependent and time-limited effect on establishing a 'bifidus flora' in formula-fed infants.

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