摘要
C1-B941是一株枯草芽孢杆菌(Bacillus subtilis)的转酮醇酶(Transketolase,TKT)变异株,与亲株C1相比,其在菌体形态及代谢特性上发生了显著变化,如对戊糖不利用,对葡萄糖等利用变弱,碳源利用存在抑制,表现为芳香氨基酸合成途径缺陷,对数期细胞聚集成链,孢子形成能力下降,在发酵培养基中可以积累D-核糖,发酵液具有广泛的用途。
C1-B941 is a transketolase mutant of Bacillus subtilis., which is differentiated remarkably with the parent strain C1in the characteristics of cell morphlogy and metabolism. The results showed that: not utilizing pentoses; or weakening thecarbohydrates such as D-glucose utilization or inhibition interaction on carbohydrates ; source there would be defects in synthesisof aromatic amino acids, chains formation during exponential cell growth; and lowering of sporulation capability; It was possibleto accumulate D-ribose in the ferment medium, so as to make the fermented liguid useful in a lorge scale.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2003年第9期44-48,共5页
Food Science
