Analysis on Components and Physical and Chemical Characteristics of Antimutagenic Substance of Lactobacillus L2

Abstract

Abstract: In this study, chemical components of antimutagenic substance of L2 were assayed. The total sugar content of the glycoprotein was 41.3μg/ml by phenol-vitriol, and the protein content were 872μg/ml. The ratio of sugar and protein was nearly 1:20. In this active glycoprotein, the total amino acid contents were 35.91%, while the major amino acids were phenylalanine and arginine. Then, the physical and chemical characteristics of active glycoprotein were analyzed. Its molecular mass was 10kDa, its reactive tempeture range 20～60℃, pH range was 5～9. 10～50mmol/L K+ show little effect on its activity, while Fe3+ has the largest effect on it.

Key words: , Lactobacillus L2； antimutagenic activity component； physical and chemical characteristics；

SU Wei, CAO Yu-Sheng. Analysis on Components and Physical and Chemical Characteristics of Antimutagenic Substance of Lactobacillus L2[J]. FOOD SCIENCE, 2006, 27(4): 106-109.

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Analysis on Components and Physical and Chemical Characteristics of Antimutagenic Substance of Lactobacillus L2

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