Performance Comparison of Commercial and Home-Made Lipases for Synthesis of Poly(δ-Valerolactone)Homopolymers
作者机构：Istanbul Technical UniversityDepartment of Chemical EngineeringAyazaga CampusIstanbul34469Turkey
出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)
年 卷 期：2019年第7卷第4期
页 面：335-343页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金：Coordination Department for Scientific Research Projects, (40615) Istanbul Teknik Üniversitesi, ITÜ, (MYL-2017-40615)
主 题：Poly(δ-valerolactone) Candida antarctica lipase B Novozyme 435 immobilization enzymatic ring opening polymerization
摘 要：Novozyme 435,which is the commercially available immobilized form of Candida antarctica lipase B,has been successfully conducted ring opening polymerization of lactones in organic *** this paper,it was aimed to introduce an alternative biocatalyst for Novozyme *** antarctica lipase B immobilized onto rice husk ashes via physical adsorption(with a specific activity of 4.4 U/mg)was prepared in previous studies and used as a biocatalyst for poly(δ-valerolactone)synthesis in the present *** reactions were proceeded at various reaction temperatures and periods via both two immobilized enzyme *** resulting products were characterized spectroscopically and *** highest molecular weight(Mn=9010 g/mol)was obtained via Novozyme 435 catalysis at 40℃and 24 *** performance of home-made lipase,which resulted in a molecular weight of 8040 g/mol,was close to commercial one.
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