食品科学 ›› 2010, Vol. 31 ›› Issue (12): 148-152.doi: 10.7506/spkx1002-6630-201012034

• 工艺技术 • 上一篇    下一篇

响应面法优化紫色甘薯茎、叶色素提取工艺

杨 萍,牛春艳   

  1. 吉林农业科技学院食品工程学院
  • 收稿日期:2009-10-21 出版日期:2010-06-15 发布日期:2010-12-29
  • 通讯作者: 杨萍 E-mail:yangpingch@126.com

Using Response Surface Methodology for Optimizing Pigments Extraction from the Leaves of Purple Sweet Potato

YANG Ping,NIU Chun-yan   

  1. (College of Food Engineering, Jilin Agricultural Science and Technology College, Jilin 132101, China)
  • Received:2009-10-21 Online:2010-06-15 Published:2010-12-29
  • Contact: YANG Ping, E-mail:yangpingch@126.com

摘要:

以成熟的紫色甘薯茎叶为原料,采用酸水解法提取紫色甘薯茎、叶中的色素,通过单因素和响应面分析法,考察提取剂乙醇的用量、提取时间、提取温度和提取液pH 值对提取效果的影响,优化工艺参数。结果表明,最佳工艺条件为提取剂乙醇用量为60mL、提取时间24h、提取温度50℃、提取液的pH 值为5。

关键词: 紫色甘薯茎叶, 紫色素, 吸光度, 响应面分析

Abstract:

In this paper, we develop an optimal ethanol extraction process of pigments from the leaves of purple sweet potato based on an investigation of the effects of 95% ethanol amount, length of extraction time, extraction temperature and pH on pigments extraction using single factor method and response surface methodology. The results showed that the optimal extraction process was based on the use of 12-fold volume of 95% ethanol acidified to pH 5 as extraction solvent for 24 h extraction at 50 ℃.

Key words: leaves of purple sweet potato, pigment, absorbance, response surface analysis

中图分类号: