Abstract
Colonization of Lactobacilli among the Fecal Microflora of Healthy Iranian Breast-Fed Infants
Highlights
Lactobacilli are important bacteria among intestinal microflora
Out of 90 infants’ stool samples, 72 (80%) samples were positive for lactobacillus
Since some lactobacilli strains have health-promoting effects on infant and are use as probiotics, further investigation on probiotic potential of identified species may help in finding new probiotics
Summary
Lactobacilli are important bacteria among intestinal microflora. They can prevent intestinal colonization by pathogenic bacteria, and used as probiotics. Lactic acid bacteria and bifidobacteria are important group among intestinal microflora, since they have health-promoting benefits, such as the prevention of intestinal colonization by pathogens [2,3]. They are commonly used as probiotics, with effects especially against acute diarrhoea in childhood [4,5]. Lactobacilli species are gram positive, catalase negative, non-spore-forming and aerotolerant or anaerobic bacteria They are found in dairy, grain, meat and fish products, beer, fruits, pickled vegetables, silage, sourdough, soil, as well as mouth, intestinal tract, and vagina of humans and many animals as normal flora [6,7]. Several factors such as mode of delivery, preterm birth, antimicrobial agents, hygienic conditions, diet (breast or formula feed) and etc., affect microbial presence and succession in gastrointestinal tract of infants [1,10]
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