FUNGUS STRAIN ASPERGILLUS ORYZAE AS PRODUCER OF COMPLEX OF PEPTIDASES, amp;beta;-GLUCANASE, amp;alpha;-AMYLASE AND XYLANASE

摘要

FIELD: biotechnology, microbiology, biochemistry.;SUBSTANCE: invention relates to the strain Aspergillus oryzae ROM-156 obtained by selection from the known strain Aspergillus oryzae-387 (VKPM F-683) by multistep selection using effective methods of mutagenesis. The strain is stored as lyophilic dried culture and on slants with wort-agar in section of biotechnology of enzyme preparations in food processing department of the State Scientific Institute VNII food processing technology in Moscow. Invention provides preparing the complex of proteinases and peptidases wherein their level of activity in cultural fluid exceeds activity of analogue by 6-10-fold, 1.3-1.4-fold and 1.6-1.9-fold with respect to β-glucanase, α-amylase and xylanase, respectively. The process cultivation time of the strain is reduced by 1.6-1.9-fold.;EFFECT: improved and valuable properties of strain.;3 tbl, 4 ex