期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2007

33

6

694-699

10.13331/j.cnki.jhau.2007.06.022

湖南省科学技术厅重点项目（05SK3083）；

本校为第一机构

用正交旋转组合设计,研究了温度、时间及料液比对湘西刺葡萄皮色素(VSP)提取量的影响,利用响应面法对其提取工艺参数进行了优化.结果表明:从刺葡萄皮粉中提取色素宜采用70%乙醇(含0.03%盐酸)作为提取剂;刺葡萄皮色素提取的响应面最佳工艺条件为料液比1∶16.7,提取温度46.7 ℃,提取时间68 min,该条件下提取量指标为8.125 9,模型预测精度达99.9%,比单因素组合条件下的提高了4.94%;回归方程优化明显提高了第一级、第二级提取率,使二级提取率由单因素最优条件下的90.18%提升到了97.35%.

The orthogonal rotational combination design was applied to investigate the effects of extraction temperature, time and the ratio of solid to solution on the extraction yield of Vitis skin pigments （ VSP ） and its technique parameters were optimized by response surface methodology.The results showed as follows： The most suitable extr actant was 70% ethonal （ 0.03%HCl ）to VSP; The optimized extraction technique parameters were 1 ： 16.7 as the ratio of solid to solution , 46.7℃ as the extraction temperature , and 68 min as the extraction t...