Analysis of functional properties of Lactobacillus acidophilus

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• 作者：Ruixiang Zhao ; Junliang Sun ; Haizhen Mo and Yang Zhu
• 关键词：Antimicrobial activity ; β ; Galactosidase ; Cholesterol reduction ; Lactobacillus acidophilus ; Probiotic effects ; Protein availability
• 刊名：World Journal of Microbiology and Biotechnology
• 出版年：2007
• 出版时间：February, 2007
• 年：2007
• 卷：23
• 期：2
• 页码：195-200
• 全文大小：235 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Applied Microbiology
  Biotechnology
  Biochemistry
  Environmental Biotechnology
  Microbiology
  
• 出版者：Springer Netherlands
• ISSN：1573-0972

文摘

Metabolites from Lactobacillus acidophilus were analysed. The results showed that Lactobacillus acidophilus Ind-1 and Lactobacillus acidophilus Lakcid produced respectively 12.73 g and 13.33 g lactic acid l?1 after incubating in skim milk at 37 °C for 36 h; and 2.229 unit and 1.808 unit β-galactosidase l?1 in an MRS medium. The proteolytic activity of Lactobacillus acidophilus was high and the content of 17 free amino acids in the fermented milk of Lactobacillus acidophilus Ind-1 and Lactobacillus acidophilus Lakcid was 394.4 mg l?1 and 563.2 mg l?1, respectively. Meantime, Lactobacillus acidophilus reduced cholesterol level in an MRS medium supplemented with cholesterol. Furthermore, Lactobacillus acidophilus Ind-1 and Lactobacillus acidophilus Lakcid showed antimicrobial activity against Bacillus anthracis and Escherichia coli.