作者: Jingjing Sun , Yiling Chen , Jun Sheng , Mi Sun
DOI: 10.1155/2015/139179
关键词:
摘要: To improve the reusability and organic solvent tolerance of microbial lipase expand application (hydrolysis, esterification, transesterification), we immobilized marine using different methods determined properties lipases. Considering activity cost lipase, concentration was fixed at 2 mg/mL. The optimal temperature lipases 40°C 5°C higher than free lipase. activities were much alkaline pH (more 50% 12). lost most (35.3%) retained more 46.4% their initial after 3 h heat treatment 70°C. At pH, stable 60% residue 11 for 3 h). Immobilized 80% 5 cycles increased enzyme 108.7%) in tert-butanol. Immobilization which improved provided a chance to system expanded range catalyze hydrolysis esterification harsh condition.