期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2012

38

3

282-286

10.3724/SP.J.1238.2012.00282

湖南省科技计划项目（2010SK3005）；

本校为第一机构

用乙醇回流法从葡萄枝蔓中提取白藜芦醇,以乙醇体积分数（x1）、回流时间（x2）和溶媒比（x3）为自变量,以白藜芦醇得率（y）为因变量,得二次回归方程y=–6.1862039+0.1812078x1–0.01220371x2+0.1222093x3+0.00020273x1x2–0.00020545x1x3–0.00020164x2x3–0.00120178x12–0.00020042x22–0.00220998x32（r=0.936201,P

Resveratrol was extracted from grapevine by ethanol reflux extraction, and the quadratic regression equation y=-6.18639＋0.1817x1-0.012371x2＋0.12293x3＋0.000273x1x2-0.000545x1x3-0.000164x2x3-0.001178x1-00004x2^2-0.002998x3^2（r=0,9361,P〈0.01） was obtained by selecting the ethanol concentration （x0, time for refluxing extraction （x2） and ratio of solvent to raw material （x3） as independent variables and the extraction rate of resveratrol as dependent variables. Then the extraction process was optimized using central composite design and ...