Emerging evidence confirms beneficial properties of probiotics in promoting growth and immunity of farmed chicken. However, the molecular mechanisms underlying the host-microbiome interactions mediated by probiotics are not fully understood. In this study, the internal mechanisms of Lacticaseibacillus chiayiensis-mediated host-microbiome interactions and to elucidate how it promotes host growth were investigated by additional supplementation with L.
View Article and Find Full Text PDFIt is desirable to obtain high levels of viable Lacticaseibacillus paracasei, a widely used food probiotic whose antibacterial activity and potential application in milk remain largely uninvestigated. Here, we isolated and purified the L. paracasei strain XLK 401 from food-grade blueberry ferments and found that it exhibited strong antibacterial activity against both gram-positive and gram-negative foodborne pathogens, including Staphylococcus aureus, Salmonella paratyphi B, Escherichia coli O157, and Shigella flexneri.
View Article and Find Full Text PDFThe growing issue of antibiotic resistance has restrained the utilization of antibiotics as growth enhancers in the poultry industry. Probiotics are candidates for replacing antibiotics in the poultry industry. However, probiotics are strain-specific and their efficacy needs to be investigated before applying them.
View Article and Find Full Text PDFNumerous different species of LAB are used in different fields due to their unique characteristics. However, , a newly established species in 2018, has limited microorganism resources, and lacks comprehensive evaluations of its properties. In this study, AACE3, isolated from fermented blueberry, was evaluated by genomic analysis and assays of the properties.
View Article and Find Full Text PDFFoodborne pathogens and their biofilms pose a risk to human health through food chain. However, the bacteriocin resources combating this threat are still limited. Here, one of the most used probiotics in food industry, was prepared on a large scale using alternating tangential flow (ATF) perfusion-based technology.
View Article and Find Full Text PDFLactic acid bacteria are generally regarded as alternatives to antibiotics in livestock and poultry farming, especially strains, which are safe and have probiotic potential. Although has long been proposed to be a probiotic, the understanding of the roles of this species is still in its infancy. Here, a strain of CGMCC20700 isolated from the intestinal mucosa of Yunnan black-bone chicken broilers was investigated in the context of its safety and probiotic characteristics by whole-genome sequencing in parallel with phenotypic analysis.
View Article and Find Full Text PDFAntibacterial activity and mechanism of action of bacteriocins against bacteria that cause pork contamination remain unclear. Here, antibacterial activity of bacteriocin LFX01 against two important indicator strains (i.e.
View Article and Find Full Text PDFPhenyllactic acid (PLA) has been demonstrated to possess antibacterial activity and capacity to prolong food shelf life. However, studies on the performance of PLA in inhibiting Staphylococcus aureus and its effectiveness when applied to dairy products are largely lacking. Here, antibacterial activity (planktonic and biofilm states) of PLA against S.
View Article and Find Full Text PDFStaphylococcus aureus and its biofilm have emerged as a significant threat to the safety of dairy products. In recent years, lactic acid bacteria (LAB) bacteriocins have been widely acknowledged as the potential natural antibacterial substance in food biopreservation due to their excellent antibacterial effects. However, few LAB bacteriocins with antibacterial and antibiofilm activity against S.
View Article and Find Full Text PDFFew bacteriocins with antibacterial activity against have been reported. Here, a novel bacteriocin () produced by strain LF-8 from the intestine of tilapia was purified and extensively characterized. possesses a molecular weight of 1049.
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