Probiotic potential of Lactobacillus paracasei FM-LP-4 isolated from Xinjiang camel milk yoghurt
文献类型： 外文期刊
作者： Wang, Ying 1 ; Zhou, Jianzhong 2 ; Xia, Xiudong 2 ; Zhao, Yancun 2 ; Shao, Weilan 1 ;
作者机构： 1.Nanjing Normal Univ, Coll Life Sci, Nanjing 210023, Jiangsu, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agroprod Proc, Nanjing 210014, Jiangsu, Peoples R China
期刊名称：INTERNATIONAL DAIRY JOURNAL （ 影响因子：3.032； 五年影响因子：3.395 ）
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收录情况： SCI
摘要： Fifty three probiotic lactic acid bacteria (LAB) strains with high anti-oxidative activity from Xinjiang camel milk yoghurt were screened and identified. Four strains showed higher 2,2-diphenyl-1-picrylhydrazyl scavenging activity and reducing power than the reference strain Lactobacillus rhamnosus GG (ATCC53103) with strain FM-LP-4, identified as Lactobacillus paracasei by 16S rDNA nucleotide sequencing, showing the highest. Strain FM-LP-4 also showed higher stress tolerance properties (acidity, bile, and osmotic pressure) and adhesion properties than L. rhamnosus GG. The in vivo antioxidant activity of FM-LP-4 was further assayed in D-galactose-induced oxidative damaged mice. Administration of FM-LP-4 significantly enhanced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), and inhibited the biosynthesis of malondialdehyde (MDA) and protein carbonyl in a dose-dependent manner. Additionally, FM-LP-4 strain could significantly decrease the endotoxin level in the serum of mice. Overall, strain FM-LP-4 is a promising probiotic candidate for preparations of functional foods and antioxidant supplements. (C) 2016 Elsevier Ltd. All rights reserved.
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