PRODUCT YIELD AND BY-PRODUCT FORMATION IN GLYCEROL CONVERSION TO DIHYDROXYACETONE BY GLUCONOBACTER-OXYDANS

被引：55
作者：
SVITEL, J
STURDIK, E
机构：
[1] Department of Biochemical Technology, Faculty of Chemical Technology, Technical University, 812 37 Bratislava
来源：
JOURNAL OF FERMENTATION AND BIOENGINEERING | 1994年 / 78卷 / 05期
关键词：
D O I：
10.1016/0922-338X(94)90279-8
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Dihydroxyacetone was produced by the strain Gluconobacter oxydans CCM 1783 (= ATCC 621), which is the most frequently cited strain for this conversion. The influence of the oxygen concentration and pH of the fermentation medium on product yield was evaluated using resting cells. A decrease of product yield at acidic pH was observed, but a more significant decrease occurred at oxygen concentrations under 4 x 10(-4) mol l(-1) Batch cultures were run with gassing by air and/or oxygen and yields of 87 and/or 94% were obtained. When using air, a 7% decrease in yield was accompanied by by-product formation, and glycerate was identified in fermentation medium.
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页码：351 / 355
页数：5
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