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Published on: April 28, 2014
In Vitro Probiotic Properties of Lactobacillus salivarius MG242 Isolated from Human Vagina
Chang-Ho Kang1,2, Seul Hwa Han3, YongGyeong Kim3
1Department of Biological Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon, 22212, South Korea. changho-kang@naver.com.
Abstract:
Vulvovaginal candidiasis (VVC) is a very common infection worldwide that is mainly caused by Candida albicans. In a previous study, we showed that Lactobacillus salivarius MG242 has anti-Gardnerella vaginalis activity. In this study, we investigated the potential of using L. salivarius MG242 for biocontrol of C. albicans. In line with the results from a spot overlay assay, MG242 inhibited the growth of C. albicans by 99.99 ± 0.01% in co-culture, suggesting that L. salivarius MG242 has the potential to be developed into a probiotic formula to treat or prevent VVC. Accelerated storage tests using dehydrated live cell powder at 50, 60, and 70 °C were performed, and the results showed that immobilization with 10% skim milk effectively increased the thermal resistance of entrapped microorganisms, resulting in sevenfold longer shelf-life than the control (in PBS). Lower storage temperatures also increased the shelf-life up to 8.31 months.
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