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El-Sayed El-S.A. Ezzat S.M. Ghaly M.F. Mansour M. E-Bohey M.A. 《World journal of microbiology & biotechnology》2000,16(1):87-89
Two chitinases, A and B, were purified from the culture supernatant of Streptomyces albovinaceus S-22 by ammonium sulphate fraction (80%) and Sephadex G-200 gel filtration. Both enzymes had molecular weights estimated to be 43 and 45kDa by SDS polyacrylamide gel electrophoresis. The enzymes were active at 40°C and pH 5.6 after 120min, and stable at temperatures below 40°C in the absence of chitin. The purified enzyme had potential for cell wall lysis of fungal pathogenesis tested. 相似文献
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