title: Short-chain aliphatic ester synthesis using Thermobifida fusca cutinase.
abstract: Short-chain aliphatic esters are commonly used as fruit flavorings in the food industry. In this study, Thermobifida fusca (T. fusca) cutinase was used for the synthesis of aliphatic esters, and the maximum yield of ethyl caproate reached 99.2% at a cutinase concentration of 50U/ml, 40°C, and water content of 0.5%, representing the highest ester yield to date. The cutinase-catalyzed esterification displayed strong tolerance for water content (up to 8%) and acid concentration (up to 0.8M). At substrate concentrations ⩽0.8M, the ester yield remained above 80%. Moreover, ester yields of more than 98% and 95% were achieved for acids of C3-C8 and alcohols of C1-C6, respectively, indicating extensive chain length selectivity of the cutinase. These results demonstrate the superior ability of T. fusca cutinase to catalyze the synthesis of short-chain esters. This study provides the basis for industrial production of short-chain esters using T. fusca cutinase.
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
authors.forename: Lingqia
authors.initials: L
authors.lastname: Su
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
authors.forename: Ruoyu
authors.initials: R
authors.lastname: Hong
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China. Electronic address: jingwu@jiangnan.edu.cn.
authors.forename: Jing
authors.initials: J
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
authors.forename: Yongmei
authors.initials: Y
authors.lastname: Xia
mesh_terms: D000146:Acids, Carbocyclic / Q000378:metabolism; D039903:Actinobacteria / Q000201:enzymology*; D000438:Alcohols / Q000378:metabolism; D001426:Bacterial Proteins / Q000378:metabolism; D002265:Carboxylic Ester Hydrolases / Q000378:metabolism*; D004951:Esterification; D004952:Esters / Q000378:metabolism*
chemical_list: D000146:Acids, Carbocyclic; D000438:Alcohols; D001426:Bacterial Proteins; D004952:Esters; D002265:Carboxylic Ester Hydrolases; C019952:cutinase
keywords: Cutinase; Enzymatic synthesis; Short-chain aliphatic esters; Thermobifida fusca