Optimization of alkyl ester production from grease using a phyllosilicate sol-gel immobilized lipase**,*** |
| |
Authors: | An-Fei Hsu Kerby C Jones Thomas A Foglia William N Marmer |
| |
Institution: | (1) US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038, USA |
| |
Abstract: | Simple alkyl ester derivatives of restaurant grease were prepared using a lipase from Pseudomonoas cepacia immobilized within a phyllosilicate sol-gel matrix as biocatalyst. Alcoholysis reactions of grease were carried out in solvent-free media using a one-step addition of alcohol to the reaction mixture. The immobilized lipase was active from 40 to 70 °C. Ester yields (60–97%) were highest when using a ratio of reactants of 2 mmol grease to 8 mmol alcohol and the biocatalyst was 10% (w/w) of grease in the presence of molecular sieves. |
| |
Keywords: | alkyl esters biodiesel branched esters immobilized lipase recycled grease |
本文献已被 PubMed SpringerLink 等数据库收录! |