天然产物研究与开发 ›› 2023, Vol. 35 ›› Issue (增刊1): 23-34.

• 研究论文 • 上一篇    下一篇

响应面法优化超声波辅助离子液体提取荞麦壳色素及其稳定性和抗氧化性的研究

刘   宏,夏慧敏,久   欣,刘妍妍,王焕芸*    

  1. LIU Hong,XIA Hui-min,JIU Xin,LIU Yan-yan,WANG Huan-yun*
  • 出版日期:2023-06-28 发布日期:2023-06-13
  • 基金资助:
    内蒙古自治区蒙医药协同创新培育中心研究项目(MYYXT201905)

Optimization of ionic liquid-based ultrasonic-assisted extraction of pigment from buckwheat hull by response surface method and its stability and antioxidant activity

LIU Hong,XIA Hui-min,JIU Xin,LIU Yan-yan,WANG Huan-yun*   

  1. Pharmacology School,Inner Mongolian Medical University,Hohhot 010110,China
  • Online:2023-06-28 Published:2023-06-13

摘要: 本研究采用响应面法优化超声波辅助离子液体提取方法,提取荞麦壳色素,并研究其稳定性和抗氧化性。实验中合成了氨基酸离子液体,筛选出了L-赖氨酸磷酸盐离子液体,从荞麦壳中提取色素。分别考察了L-赖氨酸磷酸盐离子液体的浓度、固液比、提取时间和提取温度对色素的影响。通过单因素试验和响应面法优化确定了最佳提取工艺,为L-赖氨酸磷酸盐离子液体的浓度14%,固液比1∶22,提取温度为80 ℃,煎煮两次,每次45 min的萃取条件下。本研究阐明了荞麦壳色素的最佳提取工艺,并为荞麦壳色素的工业提取奠定了一定的基础。

关键词: 离子液体, 荞麦壳色素, 稳定性, 抗氧化活性

Abstract:

In this study,response surface methodology was used to optimize the ultrasonic-assisted ionic liquid extraction method to extract buckwheat hull pigment,and its stability and antioxidant activity were studied.In the experiment,amino acid ionic liquid was synthesized,L-lysine phosphate ionic liquid was screened out,and pigment was extracted from buckwheat hull.The effects of the concentration ofL-lysine phosphate ionic liquid,solid-liquid ratio,extraction time and extraction temperature on the pigment were investigated.The optimum extraction process was determined by single factor test and response surface methodology.The concentration of L-lysine phosphate ionic liquid was 14%,the solid-liquid ratio was 1∶22,the extraction temperature was 80 ℃,and the extraction time was 45 minutes.This study clarified the best extraction process of buckwheat hull pigment,and laid a certain foundation for the industrial extraction of buckwheat hull pigment.

Key words: ionic liquid, pigment of buckwheat hull, stability, antioxidant activity

中图分类号:  R917