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Citation: REN Ling-Ling, HE Jing, MA Run-Yu, D. G. Evans, DUAN Xue. The Relationship Between Memory Effect and Composition of Layered Double Oxide in Penicillin G Acylase[J]. Chinese Journal of Applied Chemistry, ;2001, 18(11): 853-856. shu

The Relationship Between Memory Effect and Composition of Layered Double Oxide in Penicillin G Acylase

1.
Key Laboratory of Science & Technology of Controllable Chemical Reactions, Education Ministry, Beijing University of Chemical Technology, Beijing 100029

Received Date: 15 January 2001
Available Online: 6 August 2001
Fund Project: 国家自然科学基金资助项目(29973004) (29973004)

Layered double oxide(LDO) immobilized penicillin G acylase(PGA) has been studied by XRD and TEM. The results show that the LDO, obtained by calcination at 500℃ of layered double hydroxides(LDH) having an ordered layered structure, has a disordered layered structure. PGA has an obvious effect on the LDO when the basity of LDO decreased, vice versa. The memory effect of LDO is due to transition of its disordered layered structure into ordered layered structure.
- layered double oxide,
- layered double hydroxide,
- memory effect,
- penicillin G acylase,
- immobilized enzyme
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