Lipase-Catalyzed Synthesis and Emulsification of Dextrin Ester

Abstract:

In this paper,the process of enzymatic catalysis for the synthesis of dextrin ester was investigated.The single factor and the orthogonal experiments for the affecting factors of this technology were carried out.Under the optimum conditions of 7 g/L lipase from Novozym 435,and acid/dextrin molar ratio of 4∶1 at 65 ℃ for 60 h,the optimum process was achieved.The results showed that:the emulsification increased with the concentration of dextrin esters.At the same concentration,the emulsification of the dextrin ester is higher than that of maltose ester and starch ester.