Purification and properties of a neutral protease produced by Lactobacillus brevis
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Date
1990-03-01
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
A proteolytic enzyme was produced by a strain of Lactobacillus brevis isolated from an oriental beverage. The enzyme was extracted and purified 50-fold by gel filtration and ion-exchange chromatography. The optimum pH for the enzyme was 7.0, the optimum temperature 35°C and the molecular weight 34,674 Da. Furthermore, the enzyme was stimulated by cations including Ca2+, Mg2+, Na+ and K+ and inhibited by Zn2+ and Co2+ ions. Other inhibitors were EDTA, ascorbic acid and citric acid. The enzyme is probably a neutral metalloprotease.
Description
Keywords
Lactobacillus, ProteasepH, Temperature, Cation
Citation
Amund, O. O., Omidiji, O., & Ilori, O. (1990). Purification and properties of a neutral protease produced by Lactobacillus brevis. Journal of biotechnology, 13(4), 361-365.