Production of diacylglycerols through glycerolysis with SBA‐15 supported Thermomyces lanuginosus lipase as catalyst. (20th December 2019)

• Record Type: Journal Article
• Authors: Zhao, Xihong; Zhao, Fenghuan; Zhong, Nanjing
• Is Part Of: Journal of the science of food and agriculture. Volume 100:Number 4(2020)
• Page Start: 1426
• Page End: 1435
• Publication Date: 2019-12-20
• Subjects: diacylglycerols -- immobilization -- lipase from Thermomyces lanuginosus -- organic modification -- SBA‐15; Food -- Periodicals; Agriculture -- Periodicals; 664
• DOI: 10.1002/jsfa.10140
• Languages: English
• ISSNs: 0022-5142

Abstract

Abstract: BACKGROUND: In this study, SBA‐15 was functionalized by silane coupling reagents, then lipase from Thermomyces lanuginosus (TLL) was immobilized onto the parent and the organically modified SBA‐15 for diacylglycerol (DAG) production through glycerolysis. RESULTS: Diacylglycerol content of 54.77 ± 0.63%, and triacylglycerol (TAG) conversion of 77.75 ± 1.24%, were obtained from the parent SBA‐15 supported TLL‐mediated glycerolysis reaction in a solvent‐free system. However, poor performance was unexpectedly observed when co‐solvents were introduced into the reaction system. After organic modification, the functionalized SBA‐15 supported TLL samples all exhibited reasonable performance, producing DAG content over 40 wt% and TAG conversion over 70 wt%. Higher DAG content, up to 59.19 ± 1.10%, was observed from the phenyl group‐modified SBA‐15 supported TLL. The operational stability of the immobilized TLL samples in glycerolysis was also improved after organic functionalization. The phenyl group‐modified SBA‐15 supported TLL showed good reusability in the present glycerolysis reaction, and 95.21 ± 4.87% of the initial glycerolysis activity remained after five cycles of reuse. CONCLUSION: The organic modification of SBA‐15 improved the catalytic performance of its supported TLL in glycerolysis, in terms of TAG conversion, DAG content, and reusability. © 2019 Society of Chemical Industry