Effect of operative variables and kinetic study of butyl butyrate synthesis by Candida rugosa lipase activated by chitosan-reinforced nanocellulose derived from raw oil palm leaves.

•CRL/CS-NC was used as the biocatalysts to synthesize butyl butyrate.•Activity of the CRL/CS-NC was 1.5-fold higher than the free CRL.•CRL/CS-NC-catalyzed esterification followed a ping-pong bi-bi mechanism model.•Enzymatic production of butyl butyrate was confirmed by FTIR-ATR analysis.