کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
35403 45088 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient production of acetoin by the newly isolated Bacillus licheniformis strain MEL09
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Efficient production of acetoin by the newly isolated Bacillus licheniformis strain MEL09
چکیده انگلیسی

In this study, a new bacterial strain MEL09, which produces acetoin at high concentrations, was isolated from solid cultures of traditional Chinese vinegar. Based on physiological and biochemical characteristics as well as the 16S rDNA gene sequence, strain MEL09 was identified as Bacillus licheniformis. To improve acetoin production by B. licheniformis MEL09, medium composition and culture conditions were optimized by varying one factor at a time and using orthogonal array tests. Under these optimized conditions, the maximum acetoin concentration achieved was 41.26 g l−1, with 41.26% glucose conversion efficiency (84.39% of theoretical glucose conversion efficiency). This increase is 84.86% over the initial condition and is, to our knowledge, the highest acetoin level ever reported using fermentation methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 46, Issue 1, January 2011, Pages 390–394
نویسندگان
, , , , , , ,