Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.foodchem.2013.12.102
Title: Chemical and enzymatic synthesis of a library of 2-phenethyl esters and their sensory attributes
Authors: Li, C.
Sun, J.
Li, T.
Liu, S.-Q. 
Huang, D. 
Keywords: 2-Phenethyl ester
Esterification
Flavour esters
Lipase
Issue Date: 1-Jul-2014
Citation: Li, C., Sun, J., Li, T., Liu, S.-Q., Huang, D. (2014-07-01). Chemical and enzymatic synthesis of a library of 2-phenethyl esters and their sensory attributes. Food Chemistry 154 : 205-210. ScholarBank@NUS Repository. https://doi.org/10.1016/j.foodchem.2013.12.102
Abstract: We report a simple enzymatic approach to synthesise phenethyl esters as natural flavouring materials. Chemical and lipase-catalysed esterification reactions between fatty acids of C4-C18 and 2-phenethyl alcohol were studied. Both methods were compared qualitatively and quantitatively by GC-MS/FID. The acid and thermal stabilities of 2-phenethyl esters were excellent and can meet the requirements of food matrices under most processing conditions. Sensory evaluation showed that each 2-phenethyl ester with a different carbon-chain-length fatty acid had unique sensory notes. Moreover, through Lipozyme TL IM-mediated transesterification, valuable 2-phenethyl alcohol-derived esters were synthesised from butter oil and 2-phenethyl alcohol. The influence of several physicochemical parameters (temperature, substrate molar ratio, enzyme loading, shaking speed and time) on the transesterification reaction was investigated to give optimal reaction conditions, leading to a high yield of 80.0%. © 2014 Elsevier Ltd. All rights reserved.
Source Title: Food Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/93282
ISSN: 03088146
DOI: 10.1016/j.foodchem.2013.12.102
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