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Short communication: Isolation of mutants of Penicillium purpurogenum with enhanced xylanase and beta-xylosidase production

By Jeannette Steiner, P. Carmona, C. Ponce, M. Berti and Jaime Eyzaguirre


Artículo de publicación ISIPenicillium purpurogenum was mutated with u.v. light to increase xylanase production. The best mutant, UV-64, was treated with N-methyl-N'-nitro-N-nitrosoguanidine and a second generation of mutants was obtained (NG-188 and NG-737). NG-737 produced 125 U of xylanase/ml when grown on oat spelts xylan supplemented with wheat bran compared with 69 U/ml for the wild-type strain. The mutants also showed a 2.2-fold increase in beta-xylosidase as compared with the wild-type

Topics: Mutants
Publisher: 'Springer Science and Business Media LLC'
Year: 1998
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