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Lactobacillus paracasei ssp. paracasei YBJ01 reduced d-galactose-induced oxidation in male Kuming mice.

  • 2018-12
  • Journal of Dairy Science 101(12)
    • Huayi Suo
    • Shanchun Liu
    • Jian Li
    • Yangping Ding
    • Hongwei Wang
    • Yu Zhang
    • Xin Zhao
    • Jia-Le Song

Abstract

We investigated in vitro and in vivo antioxidant activity of Lactobacillus paracasei ssp. paracasei YBJ01 (LPSP-YBJ01) isolated and identified from fermented yogurt. Strain LPSP-YBJ01 had stress tolerance against acidity, bile salt, and osmotic pressure. Five in vitro antioxidant assays were used to evaluate antioxidant activity of LPSP-YBJ01, which could scavenge free radicals (2,2-diphenyl-1-picrylhydrazyl and hydroxyl) and superoxide anion in vitro. In addition, strain LPSP-YBJ01 had stronger antilipid peroxidation activity and weak reducing power in vitro. We measured in vivo antioxidant activity of LPSP-YBJ01 in an oxidation mouse model induced by d-galactose injection. Strain LPSP-YBJ01 significantly increased serum superoxide dismutase (SOD), glutathione peroxidase, and total-antioxidant capability, and inhibited generation of malondialdehyde in a dose-dependent manner. In addition, strain LPSP-YBJ01 also increased the hepatic and splenic protein expressions of some antioxidant enzymes such as catalase, Cu/Zn-SOD, and Mn-SOD in mice treated with d-galactose. Thus, LPSP-YBJ01 had antioxidant activity in vitro and in vivo and may be a useful probiotic.

Keywords: Lactobacillus paracasei ssp. paracasei YBJ01; d-galactose; in vitro antioxidant; oxidation mice.

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