食品科学 ›› 2008, Vol. 29 ›› Issue (6): 164-169.

• 工艺技术 • 上一篇    下一篇

乌洋芋色素提取工艺优化

 王金华, 秦礼康, 范柳萍   

  1. 贵州大学生命科学学院; 江南大学食品学院
  • 出版日期:2008-06-15 发布日期:2011-08-26

Optimization of Extraction Process of Pigment from Purple Potato

 WANG  Jin-Hua, QIN  Li-Kang, FAN  Liu-Ping   

  1. 1.College of Life Science, Guizhou University; 2.College of Food Science and Technology, Jiangnan University
  • Online:2008-06-15 Published:2011-08-26

摘要: 乌洋芋色素具有一般花青素类色素特征,宜采用酸性极性溶剂作提取剂。在单因素试验基础上,通过响应面分析优化试验,得到乌洋芋色素的最佳提取条件是:提取温度54.8℃,时间2h,料液比1:30(g/ml),提取液中盐酸浓度1.1%(V/V)。在此条件下,采用二次浸提,提取得率可达93.78%。

关键词: 乌洋芋, 色素, 提取, 响应面法

Abstract: The conditions for extracting pigment from purple potato storage roots were studied. The results showed that the characteristics of this pigment are similar to those of the general anthocyan pigments. So, acid polar impregnant can be use to extract the pigment. The response surface methodology was used to evaluate the factors affecting extraction of pigment from purple potato based on single factor test. The optimum conditions are established as follows: material-to-solution ratio 1:30 (g/ml), HCl concentration 1.1% (V/V), exacting temperature 54.8 ℃ and exacting time 1 hour. Under these conditions, the twice-extracting rate of pigment reaches 93.78%.

Key words: purple potato, pigment, extraction, respond surface methodology