D-pantolactone is an important intermediate for the production of pantothenic acid, panthenol, and calcium d-pantothenate. It is an efficient method to obtain d-pantolactone by optical resolution of dl-pantolactone using d-lactonohydrolase. In order to improve the hydrolysis rate of dl-pantolactone using immobilized d-lactonohydrolase which showed excellent pH and temperature stability, the process for optical resolution of dl-pantolactone using immobilized d-lactonohydrolase was investigated by optimization of hydrolysis condition. The results showed that the optimum process for optical resolution of dl-pantolactone was: temperature 40°C, pH7.0, substrate concentration 20%, hydrolysis time 8 h. Under the optimum condition, the hydrolysis rate of dl-pantolactone reached 36.8%, and the hydrolysis rate still remained at 85.6% of the original hydrolysis rate after 20 batches of reuse, indicating that immobilized d-lactonohydrolase had excellent operational stability.
CITATION STYLE
Xuan, M. juan, Zhang, J. zhong, Yuan, H. yu, Wei, R., Lu, F. ping, & Li, M. (2018). Optimization of process for optical resolution of DL-pantolactone using immobilized D-lactonohydrolase. In Lecture Notes in Electrical Engineering (Vol. 444, pp. 459–467). Springer Verlag. https://doi.org/10.1007/978-981-10-4801-2_47
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