超声波辅助提取龙眼核棕色素的研究  

Ultrasonic-assisted Extraction of Brown Pigment from Longan Seed

作　　者：吴兰兰[1] 汤凤霞[1] 何传波[1] 魏好程[1] 

机构地区：[1]集美大学生物工程学院,福建厦门361021

出　　处：《云南民族大学学报（自然科学版）》2009年第4期336-339,共4页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：厦门集美区科技项目(350211Z20071B07)

摘　　要：以龙眼核为原料,采用超声辅助法提取其中的棕色素.在单因素实验基础上,通过响应面法优化其提取工艺.结果表明:色素提取率随着提取温度、提取时间和超声功率的延长而增加,响应面分析得到的回归模型能够较好地预测实际提取率,最佳工艺条件为提取温度69℃,提取时间52 m in,超声功率162 W.The brown pigment has been extracted from the longan seed by the ultrasonic -assisted method. On the basis of single - factor experiments, the optimal extraction conditions have been obtained by using the response surface analysis. The results showed that the rate of pigment extraction increases with extraction temperature, extraction time and the power. The practical extraction rate could be well revealed in accordance with the prediction value of the regression model obtained by response surface analysis. And the optimum ultrasonic extraction is as follows： extraction temperature is 69 ℃, extraction time is 52 min, and extraction power is 162 W.

关 键 词：龙眼核 棕色素 超声波辅助提取 响应面分析 

分 类 号：S667.2[农业科学—果树学] Q586[农业科学—园艺学]