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Open AccessArticle

Hierarchical ZIF-8 toward Immobilizing Burkholderia cepacia Lipase for Application in Biodiesel Preparation

by Miaad Adnan 1,2, Kai Li 1, Jianhua Wang 1, Li Xu 1 and Yunjun Yan 1,*
1
Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
2
Ministry of Science and Technology, Baghdad 10001, Iraq
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2018, 19(5), 1424; https://doi.org/10.3390/ijms19051424
Received: 11 April 2018 / Revised: 27 April 2018 / Accepted: 30 April 2018 / Published: 10 May 2018
(This article belongs to the Special Issue Immobilization of Microorganisms and Enzymes)
A hierarchical mesoporous zeolitic imidazolate framework (ZIF-8) was processed based on cetyltrimethylammonium bromide (CTAB) as a morphological regulating agent and amino acid (l-histidine) as assisting template agent. Burkholderia cepacia lipase (BCL) was successfully immobilized by ZIF-8 as the carrier via an adsorption method (BCL-ZIF-8). The immobilized lipase (BCL) showed utmost activity recovery up to 1279%, a 12-fold boost in its free counterpart. BCL-ZIF-8 was used as a biocatalyst in the transesterification reaction for the production of biodiesel with 93.4% yield. There was no significant lowering of conversion yield relative to original activity for BCL-ZIF-8 when continuously reused for eight cycles. This work provides a new outlook for biotechnological importance by immobilizing lipase on the hybrid catalyst (ZIF-8) and opens the door for its uses in the industrial field. View Full-Text
Keywords: adsorption method; biodiesel production; Burkholderia cepacia lipase (BCL); hexahedral ZIF-8; hierarchical ZIF-8; surfactant adsorption method; biodiesel production; Burkholderia cepacia lipase (BCL); hexahedral ZIF-8; hierarchical ZIF-8; surfactant
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Adnan, M.; Li, K.; Wang, J.; Xu, L.; Yan, Y. Hierarchical ZIF-8 toward Immobilizing Burkholderia cepacia Lipase for Application in Biodiesel Preparation. Int. J. Mol. Sci. 2018, 19, 1424.

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