| Selection of Probiotic Lactic Acid Bacteria Isolated from Fermented Plant Beverages (2008) | |||||||||||
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| Screening for probiotic bacteria from non-human sources were performed in this study. Three hundred and twenty-seven strains of Lactic Acid Bacteria (LAB) were isolated from 90 samples of Fermented Plant Beverages (FPBs) and pickles collected from around Thailand. Potentially useful probiotic properties were investigated <i>in vitro</i> in parallel with a commercial probiotic strain of <i>Lactobacillus casei</i>, R obtained from a dairy probiotic product in Thailand. An isolate SS2, selected from a fermented star fruit beverage, survived in the human biological barriers (0.15 and 0.30% bile salt, pH values between 3-8, presence or absence of oxygen), resistance to some antibiotics in general use and showed other benefits to the host (antibacterial activity, utilizations of protein and starch). The isolate SS2 had a higher specific growth rate and better inhibitory properties against food borne pathogenic bacteria and spoilage organisms than the commercial probiotic R strain. It also grew well in MRS and the SPY2 medium that is free from animal-derived ingredients, (r>0.8). The isolate SS2 was therefore considered to be a potentially useful probiotic LAB for a non dairy product such as FPBs and was provisionally identified as a strain of <i>Lactobacillus plantarum</i>. | |||||||||||
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