Genomic Comparison of Lactobacillus helveticus Strains Highlights Probiotic Potential

Genomic Diversity of Phages Infecting Probiotic Strains of Lactobacillus paracasei.

Strains of the Lactobacillus casei group have been extensively studied because some are used as probiotics in foods. Conversely, their phages have received much less attention. We analyzed the complete genome sequences of five L. paracasei temperate phages: CL1, CL2, iLp84, iLp1308, and iA2. Only phage iA2 could not replicate in an indicator strain. The genome lengths ranged from 34,155 bp (iA2...

Potential of Probiotic Lactobacillus Strains as Food Additives

Selection of potential probiotic Lactobacillus strains from human milk

Live microorganisms, have beneficial effects on their host’s health, are called as probiotics. There are various possible sources to isolate these bacteria. The most important criterion is being human origin for human applications. In this study; human milk is used as isolation source because of constructive effects on neonates’ health. It is thought that lactic acid bacteria consisted in breas...

Technological and probiotic potential of BGRA43 a natural isolate of Lactobacillus helveticus

Lactobacillus helveticus BGRA43 is a human intestinal isolate showing antimicrobial activity, amongst others, against Yersinia enterocolitica, Shigella sonnei, Shigella flexneri, and Streptococcus pneumoniae. BGRA43 produces PrtH proteinase with proteolytic activity on both casein and β-lactoglobulin (BLG). BGRA43 is able to reduce the allergenicity of BLG. Bioactive peptides released in BGRA43...

Antimicrobial Peptides of Probiotic Lactobacillus strains

In recent years, numerous food poisoning outbreaks, involving various pathogens and food products, and the increasing concern over the preservation of minimally processed foods have spurred growing awareness of the importance of food safety. This has prompted new approaches to inhibit foodborne pathogens. There has been a rapid worldwide increase in pathogenic bacteria that are resistant to mul...