改性金属-有机框架固定化脂肪酶的研究任务书

 2021-10-23 20:17:02

1. 毕业设计(论文)的内容和要求

一、论文内容: 脂肪酶,全称为三酰基甘油酰基水解酶,是生物体内的一类重要的代谢酶类脂肪酶的催化遵循丝氨酸水解酶的反应机制,它含有丝氨酸-组氨酸-谷氨酸(或天冬氨酸)三联体活性中心结构,能够在油水界面上将甘油三酯完全水解成脂肪酸和甘油,或不完全水解成中间产物甘油单酯、甘油二酯。

脂肪酶具有十分重要、广泛的工业用途,利用固定化材料提高脂肪酶在极端环境的耐受性,比如保证酶在高温、低温、酸、碱等特殊环境仍然具有高活性,以满足不同工业领域的要求,仍将是人们的努力方向。

金属-有机框架(Metal-Organic Frameworks),简称MOFs,是由有机配体和金属离子或团簇通过配位键自组装形成的具有分子内孔隙的有机-无机杂化材料,通过改性修饰提高金属-有机框架对于酶的保护作用,提高被固载酶的催化活性。

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2. 参考文献

1.NADAR S S, RATHOD V K. Encapsulation of lipase within metal-organic framework (MOF) with enhanced activity intensified under ultrasound [J]. Enzyme and microbial technology, 2018, 108: 11-20.2.PAN L, MUHAMMAD T, MA L, et al. MOF-derived C-doped ZnO prepared via a two-step calcination for efficient photocatalysis [J]. Applied Catalysis B Environmental, 2016, 189: 181-191.3.MALKAR R S, YADAV G D. Synthesis of cinnamyl benzoate over novel heteropoly acid encapsulated ZIF-8 [J]. Applied Catalysis A General, 2018, 560: 54-65.4.CUI J, FENG Y, JIA S. Silica encapsulated catalase @ metal-organic framework composite: a highly stable and recyclable biocatalyst [J]. Chemical Engineering Journal, 2018, 351: 506-514.5.LIANG K, RICCO R, DOHERTY C M, et al. Biomimetic mineralization of metal-organic frameworks as protective coatings for biomacromolecules [J]. Nature Communications, 2015, 6: 7240-7246.6.HARIS P I, SEVERCAN F. FTIR spectroscopic characterization of protein structure in aqueous and non-aqueous media [J]. Journal of Molecular Catalysis B Enzymatic, 1999, 7(14): 207-221.7.SEVERCAN M, SEVERCAN F, HARIS P I. Estimation of protein secondary structure from FTIR spectra using neural networks [J]. Journal of Molecular Structure, 2001, 565(2): 383-387.8.TALEKAR S, NADAR S, JOSHI A, et al. Pectin cross-linked enzyme aggregates (pectin-CLEAs) of glucoamylase [J]. Rsc Advances, 2014, 4(103): 59444-59453.

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