Elementary Studies on Biotransformation of p- Xylene into Terephthalic Acid
Elementary Studies on Biotransformation of p- Xylene into Terephthalic Acid
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作者：
Wang Jing
对苯二甲酸是在聚酯生产中具有实用价值的单体。已知合成对苯二甲酸的各种化学路线。本论文对生物法生产对苯二甲酸进行了研究。通过筛选程序从土壤样品中分离到一株菌株。它能将对二甲苯氧化成对苯二甲酸。通过实验发现，甲苯能显著提高16的酶活力，提高对苯二甲酸的产率。甲苯的最佳浓度为200 mg/L，采用高效液相色谱分离测定对苯二甲酸。
Terephthalic acid is monomer-having utility in the production of polyesters. A variety of chemical routes to terephthalic acid are known. Biological process to produce terephthalic acid was studied in this thesis. A strain was isolated from the soil samples through a screening procedure. It can oxidize p-xylene to terephthalic acid. Through the experiment, the enzyme activity of 16 was markedly induced by toluene and the yield of terephthalic acid was increased. The optimal concentration of toluene was 200 mg/L. The method of high performance liquid chromatography was used for separation and determination of terephthalic acid.