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The influence of pH on the heat stress response of a human-derived probiotic strain of Lactobacillus plantarum, LP-Onlly, was investigated. The heat resistance of mid-log- and stationary-phase cells that were heat-adapted (45°C) in cultures that were or were not pH adjusted (pH 4.3–7.0) was evaluated at a lethal temperature of 55°C. The results demonstrated that the heat resistance of heat-adapted...
Thein vitro removal of cholesterol by probiotics has been categorized into two phases: assimilation by bacterial cells, and coprecipitation with deconjugated bile salts. Bile salt hydrolase (BSH) produced by probiotics catalyzes the deconjugation reaction of bile salts. A novel method that depends on the BSH volumetric activity (μg min−1 ml−1 bacteria culture) was developed to evaluate the cholesterol...
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