Abstract
Cinnamic acid is a phenolic compound that has the potential to act as a natural antioxidant. Cinnamic acid esterification can be performed by adding alcohol as an alkyl group donor. This esterification is carried out to increase the antioxidant capacity of cinnamic acid. Esterification of cinnamic acid with butanol as the alkyl group donor was the best condition to modify cinnamic acid. In this study, the synthesis of butyl cinnamate using a enzymatic membrane reactor (EMR) is carried out continuously with Lipozyme TL IM as the catalyst. This study aimed to determine the optimal conditions for the synthesis of butyl cinnamate using various concentrations of cinnamic acid, biocatalyst, residence time, and the presence of molecular sieves. The synthesis of butyl cinnamate at 40°C was optimum when molecular sieves were present with 0.01 M cinnamic acid concentration, 1% (w/v) biocatalyst, and 12 h of residence time.
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