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首页> 外文期刊>International Journal of Dairy Technology >Production of bacteriocin-like inhibitory substances (BLIS) by Bifidobacterium lactis using whey as a substrate
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Production of bacteriocin-like inhibitory substances (BLIS) by Bifidobacterium lactis using whey as a substrate

机译：乳双歧杆菌以乳清为底物生产细菌素样抑制物质（BLIS）

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摘要

The objective of this work was to evaluate the production of bacteriocin-like inhibitory substances (BLIS) by Bifidobacterium animalis subsp. lactis in whey supplemented with yeast extract, inulin, Tween-80 or L-cysteine. Cell growth, acidification, glucose and lactose consumption as well as BLIS production were measured during fermentations carried out in shake flasks. The best additive for both cell growth and BLIS production was shown to be yeast extract, which gave the highest concentrations of biomass (9.9 log cfu/mL) and BLIS (800 AU/mL). In a bench-scale fermentor, B. lactis growth and BLIS production were between 6% and 25% higher than in flasks depending on the conditions assayed.
机译：这项工作的目的是评估动物双歧杆菌亚种产生的细菌素样抑制物质（BLIS）。乳清中的乳酸菌，辅以酵母提取物，菊粉，Tween-80或L-半胱氨酸。在摇瓶中进行发酵期间，测量细胞生长，酸化，葡萄糖和乳糖消耗以及BLIS产生。酵母提取物是细胞生长和BLIS产生的最佳添加剂，其显示出最高的生物质浓度（9.9 log cfu / mL）和BLIS（800 AU / mL）。在台式发酵罐中，根据测定的条件，乳酸菌的生长和BLIS的产量比烧瓶中高出6％至25％。

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