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Probiotics are live microorganisms that when administered in adequate amounts, confer health benefits on the host. In this study, 13 strains of Bifidobacterium were isolated from three samples of breast-fed infant feces. The isolates were identified based on conservative gene sequencing and phylogenetic analysis. In vitro tests included survival under simulated gastrointestinal tract conditions, aggregation,...
A simple, and reliable colorimetric detection method for manganese ion (Mn 2+ ) based on pyrophosphate capped silver nanoparticles (P 2 O 74− -AgNPs) is developed. The P 2 O 74− -AgNPs was synthesized by wet chemical method. The P 2 O 74− -AgNPs solution shows a yellow color and the maximum absorption at 403nm can be observed....
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