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中文摘要：
甘油为微生物可利用的理想碳源，从自然界筛选出21株以甘油为唯一碳源产二羟丙酮（DHA）的菌株，经初步发酵测定发酵液中DHA含量，其中菌株6-8DHA产量最高达6.4g／L。对其进行常规生理生化鉴定实验，并结合16S rDNA基因分析，比对结果表明，菌株6-8与Acinetobacter sp.相似性最高，达99．7％，在细菌分类学上属于假单胞茵目莫拉茵科不动杆菌属。将其命名为Acinetobactersp.6-8。
英文摘要：
More than 20 strains capable of producing dihydroxyacetone from glycerol were isolated from 4 different natural environment samples by using two detection methods, The strain 6-8 which could grow on medium containing glycerol as sole carbon source had a higher converting capability. Under a better culture, the highest DHA production of the strain 6-8 reached 6.4 g/L. In addition to general morphological and biochemical characteristics, the strain 6-8 was identified by 16S rDNA sequence and systematic analysis. The results showed that 16S rDNA sequence of the strain 6-8 had similarity of 99.7% with Acinetobacter sp. suggesting that the strain 6-8 is one of subspecies of Acinetobacter sp.
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