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Isolation of Lactobacillus plantarum subsp. plantarum Producing C30 Carotenoid 4,4’-Diaponeurosporene and the Assessment of Its Antioxidant Activity

Journal of Microbiology and Biotechnology 2019년 29권 12호 p.1925 ~ 1930
 ( Kim Mi-Bang ) - Incheon National University Graduate School Department of Bioengineering and Nano-Bioengineering

서동호 ( Seo Dong-Ho ) - Jeonbuk National University College of Agriculture and Life Sciences Department of Food Science and Technology
박영서 ( Park Young-Seo ) - Gachon University Department of Food Science and Biotechnology
차인태 ( Cha In-Tae ) - National Institute of Biological Resources Microorganism Resources Division
서명지 ( Seo Myung-Ji ) - Incheon National University Division of Bioengineering

Abstract


Carotenoids are organic pigments with antioxidant properties and are widespread in nature. Here, we isolated five microbes, each forming yellow-colored colonies and harboring C30 carotenoid biosynthetic genes (crtM and crtN). Thereafter, Lactobacillus plantarum subsp. plantarum KCCP11226, which showed the highest carotenoid production, was finally selected and the produced pigment was identified as C30 carotenoid 4,4’-diaponeurosporene. This strain exhibited the highest survival rate under oxidative stress and its carotenoid production was also enhanced after exposure to 7 mM H2O2. Moreover, it showed the highest ability to scavenge DPPH free radical. Our results suggested that L. plantarum subsp. plantarum KCCP11226, which produces 4,4’-diaponeurosporene as a natural antioxidant, may be a functional probiotic.

키워드

Lactobacillus plantarum subsp. plantarum; carotenoid; 4,4′-diaponeurosporene; antioxidant; isolation
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