The various therapeutic benefits of Lactobacillus acidophilus and Bifidobacterium spp. have resulted in their increased incorporation into dairy foods such as yoghurts. Currently however, the efficacy of these probiotic bacteria is limited by their poor survival during the shelf life of yoghurt. Oxygen toxicity is widely considered to be responsible for the cell deaths of these bacteria. The in...

The factors responsible for colonization of the small intestine by enterotoxigenic coliform bacteria in Puerto Ricans with tropical sprue are unknown, but epidemiological observations have suggested that they may be related to an increased dietary intake of long-chain unsaturated fatty acids, particularly linoleic acid, which is known to exert an inhibitory effect on the growth of gram-positive...

This study was undertaken to assess the effect of milk replacer (MR) containing Lactobacillus acidophilus and a mix of Bifidobacterium animalis subsp. lactis and Bifidobacterium longum subsp. longum on lamb immune response and on lamb meat quality. A 6-week-trial was conducted on 40 male Comisana lambs, divided into four groups, fed maternal milk (MM), MR, MR with L. acidophilus supplementation...

Phenotypic screening for bile salt hydrolase (BSH) activity was performed on Lactobacillus acidophilus PF01 isolated from piglet feces. A gene encoding BSH was identified and cloned from the genomic library of L. acidophilus PF01. The bsh gene and surrounding regions were characterized by nucleotide sequence analysis and were found to contain a single open reading frame (ORF) of 951 nucleotides...

We have analyzed codon usage patterns of 70 sequenced genes from different Lactobacillus species. Codon usage in lactobacilli is highly biased. Both inter-species and intra-species heterogeneity of codon usage bias was observed. Codon usage in L. acidophilus is similar to that in L. helveticus, but dissimilar to that in L. bulgaricus, L. casei, L. pentosus and L. plantarum. Codon usage in the l...

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background and objective: constant use of limited number of lactic acid bacteria species in biopreservation can cause genetic degradation and or rising resistance against food pathogens or antimicrobial substances they produce. for this objective, a newly isolated strain of lactobacillus acidophilus possessing high antimicrobial activity was evaluated as a candidate for use in biopreservation. ...