胡椒油树脂乳液的制备

胡椒油树脂具有粘度大、色泽深、易结晶、不溶于水等缺点,限制了其工业化生产及应用。为解决胡椒油树脂的应用问题,本文选择单甘酯与蔗糖酯为乳化剂、阿拉伯胶为增稠剂,研究单甘酯与蔗糖酯的比例、乳化剂添加量、阿拉伯胶添加量、胡椒油树脂与去离子水的比例对胡椒油树脂乳化性及乳液稳定性的影响,并通过正交实验优化胡椒油树脂的乳化条件。得到的最优乳化条件为：单甘酯与蔗糖酯比例3∶7、乳化剂添加量2%、阿拉伯胶添加量4%、油水比例1∶8。在此条件下,乳液不分层且流动性较好,乳液稳定性达95%。本研究对胡椒油树脂进行乳化,有利于提高胡椒油树脂的稳定性,扩大其应用范围,促进胡椒产品由初级加工向高附加值精深加工转变。

Preparation of Pepper Oleoresin Emulsion

Due to high viscosity,deep color,easily crystallize,insoluble in water and other shortcomings,pepper oleoresin is of inconvenience to the industrial production and application.In order to emulsify the pepper oleoresin for solving the problems,Glyceryl Monostearate(GM)and sucrose esters(SE)were selected as the emulsifiers and gum arabic(GA)as the thickener in this paper.The effects of the ratio of GM to SE,the amount of emulsifier,the amount of GA,the ratio of pepper oleoresin to water on the emulsifying activity index(EAI),emulsion stability index(ESI)and emulsion stability were studied.In addition,the emulsification of pepper oleoresin was optimized by the orthogonal experiment.The optimal emulsification conditions were as follows:the ratio of GM to SE 3∶7,the amount of emulsi fier 2%,the amount of GA 4%,and the ratio of pepper oleoresin to water was 1∶8.Under the conditions,the emulsion was not layered and had good fluidity,and the emulsion stability could reach 95%.The emulsification of pepper oleoresin in this study is helpful to improve the stability of pepper oleoresin,expand its scope of application,and promote the transformation of pepper products from primary processing to high value-added deep processing.