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Preparation of diisononyl adipate in a solvent-free system via an immobilized lipase-catalyzed esterification

Authors
Lee, AreeKim, HeejinChoi, NakyungYoon, Sung WonKim, YanghaKim, Hak-RyulKim, In-Hwan
Issue Date
12월-2019
Publisher
ELSEVIER SCIENCE INC
Keywords
Adipic acid; Diisononyl adipate; Esterification; Eversa lipase; Isononyl alcohol; Plasticizer
Citation
ENZYME AND MICROBIAL TECHNOLOGY, v.131
Indexed
SCIE
SCOPUS
Journal Title
ENZYME AND MICROBIAL TECHNOLOGY
Volume
131
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/61298
DOI
10.1016/j.enzmictec.2019.04.014
ISSN
0141-0229
Abstract
Diisononyl adipate is a plasticizer which has excellent property of low temperature resistance and is permitted in food contact materials. In this study, diisononyl adipate was synthesized from adipic acid and isononyl alcohol in a solvent-free system via immobilized lipase-catalyzed esterification. Liquid Eversa lipase from Thermomyces lanugutosus was immobilized on Lewatit VP OC 1600 carrier. The effects of temperature, substrate molar ratio, water activity of enzyme, vacuum, and enzyme loading on the reaction efficiency were investigated. Application of vacuum played a key role to achieve a 100% conversion. The optimal temperature, molar ratio (adipic acid to isononyl alcohol), water activity of enzyme, vacuum were 50 degrees C, 1:3, 015, 13.3 kPa, and 10% (based on weight of total substrate). Under these conditions, 100% conversion was achieved within 6 h.
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Kim, In Hwan
보건과학대학 (바이오시스템의과학부)
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