食品科学 ›› 2013, Vol. 34 ›› Issue (2): 93-98.

• 工艺技术 • 上一篇    下一篇

响应面法优化超声波辅助提取籽粒苋花穗色素工艺

廖芙蓉,阚建全   

  1. 西南大学食品科学学院
  • 收稿日期:2011-11-26 修回日期:2012-12-27 出版日期:2013-01-25 发布日期:2013-01-15
  • 通讯作者: 廖芙蓉 E-mail:furong_0489@163.com

Optimization of Ultrasonic Radiation Assisted Extraction Technique of Pigment from Grain Amaranth Flower Spikes

FU-rong LIAO,   

  • Received:2011-11-26 Revised:2012-12-27 Online:2013-01-25 Published:2013-01-15
  • Contact: FU-rong LIAO E-mail:furong_0489@163.com

摘要:

本文以籽粒苋花穗为原料,采用超声波辅助提取法提取其色素,研究了提取溶剂、料液比、提取温度、超声波强度,提取时间和提取次数等因素对其色素提取效果的影响,并利用响应面法对提取工艺进行了优化。研究结果表明,籽粒苋花穗色素的最佳提取工艺条件为:提取溶剂为10%乙醇,料液比1∶46.5,提取温度32.8℃,提取时间67.2min,超声波功率150w,提取次数2次。在此最优条件下,籽粒苋花穗色素的模型预测提取率为82.13%,验证试验其提取率为82.29%,证明本工艺条件合理可行。

Abstract:

Ultrasonic radiation was used to assist the extraction of red pigment from grain amaranth flower spikes, effect of solvent,material/liquid ratio ,extraction temperature ,ultrasonic intensity,extraction time and extraction degree to the result of pigment extraction was researched based on single factor experiments, BBD combined with response surface methodology(RSM) was employed to find a optimized extract method. Results showed: the optimal parameters was: material/liquid ratio was 1:46.5, extraction temperature and time was 32.8℃ and 67.2 min respectively,ultrasonic intensity was 150w and extraction degree was 2. In optimized conditions, the anticipative maximum extraction ratio was 82.13% and the result of demonstration test was 82.29%.

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