Hydrogen peroxide production by Lactobacillus johnsonii NCC 533 and its role in anti-Salmonella
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期刊名称： Fems Microbiology Lettersartisan
作者： Pridmore Raymond David,Pittet Anne-Cécile,Praplan Fabienne,Cavadini Christoph
长沙日语期号： 第2期美国之声第七季
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关键词： hydrogen peroxide;\n Lactobacillus johnsonii\n ;anti-苏州考研辅导班
Salmonella;probiotic
2点半摘要：The human intestinal isolate Lactobacillus johnsonii NCC 533 (La1) is a probiotic strain with well-documented antimicrobial properties. Previous rearch has identified the production of lactic acid and bacteriocins as important factors, but that other unidentified factors are also involved. We ud the recently published genome quence of L. johnsonii NCC 533 to arch for novel antipathogen factors
untilnowand identified three potential gene products that may catalyze the synthesis of the known antimicrobial factor hydrogen peroxide, H 2 O 2 . In this work, we confirmed the ability of NCC 533 as well as eight different L. johnsonii strains and Lactobacillus gasri to produce H 2 O 2 when resting cells were incubated in the prence of oxygen, and that culture supernatant containing NCC 533-produced H 2 O 2 was effective
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