کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10236221 45140 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Production of a xylanolytic enzyme by a thermoalkaliphilic Bacillus sp. JB-99 in solid state fermentation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Production of a xylanolytic enzyme by a thermoalkaliphilic Bacillus sp. JB-99 in solid state fermentation
چکیده انگلیسی
Bacillus sp. JB-99 was studied for the production of extra-cellular thermostable alkaline cellulase-free xylanase in solid-state fermentation. The xylanase tit was highest on rice bran, among a few easily available lignocellulosic solid substrates tested. Maximum production of xylanase (3644 U/g DBB) was observed bran moistened with mineral salt solution (MSS3) at a substrate-to-moisturizing agent ratio of 1:2.0 (w/v) at 50 °C for 72 h. A 10% (v/w) inoculum was most suitable to attain a high production of xylanase. Yeast extract, beef extract and xylan enhanced enzyme production, while glucose, lactose and fructose strongly repressed the production process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 40, Issue 1, January 2005, Pages 431-435
نویسندگان
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