食品科学 ›› 2010, Vol. 31 ›› Issue (16): 38-41.doi: 10.7506/spkx1002-6630-201016009

• 工艺技术 • 上一篇    下一篇

超声提取米邦塔仙人掌总皂苷的工艺优化

刘健剑 何计国   

  1. 中国农业大学食品科学与营养工程学院
  • 收稿日期:2010-04-19 出版日期:2010-08-25 发布日期:2010-12-29
  • 通讯作者: 何计国 E-mail:hejiguo0870@sina.com

Ultrasonic Extraction Optimization of Total Saponins from Opuntia Milpa Alta

LIU Jian-jian,HE Ji-guo*   

  1. College of Food Science and Nutritional Engineering, China Agricultral University, Beijing 100083, China
  • Received:2010-04-19 Online:2010-08-25 Published:2010-12-29
  • Contact: HE Ji-guo* E-mail:hejiguo0870@sina.com

摘要:

目的:确定米邦塔仙人掌总皂苷含量的测定方法,优化超声提取条件。方法:以齐墩果酸为标准品,通过比色法测定总皂苷的含量,用单因素试验和正交试验优化超声提取条件。结果:总皂苷含量测定方法的精密度和稳定性的相对标准偏差分别为1.13% 和0.52%,回收率达到99.17%,相对标准偏差为1.86%。最佳超声提取工艺条件为乙醇体积分数80%、料液比1:15(g/mL)、超声提取温度70℃、超声功率100W、超声提取时间70min。结论:总皂苷含量测定方法简单、易行、准确,超声提取工艺高效经济、快捷,易于推广。

关键词: 米邦塔仙人掌总皂苷, 比色法, 质量分数, 超声提取

Abstract:

Objective: To develop a colorimetric method for determining the content of total saponins in Opuntia Milpa Alta and optimize the ultrasonic-assisted ethanol extraction of total saponins from the plant. Methods: For determining the content of total saponins in Opuntia Milpa Alta, a standard curve of oleanolic acid was plotted. Optimization of the ultrasonic-assisted ethanol extraction of total saponins was performed using single factor and orthogonal array design methods. Results: The relative standard deviations of precision and stability of the method were 1.13% and 0.52% respectively, and the average spike recovery was 99.17%, with a RSD of 1.86%. The optimum ultrasonic extraction conditions were found to be: ethanol concentration 80%, solid-to-liquid ratio 1:15, extraction temperature 70 ℃, ultrasonic power 100 W and extraction duration 70 minutes. Conclusion: The developed method for total saponin determination is simple, feasible and accurate. The optimized extraction process is efficient, economical and quick, thereby being easy to popularize.

Key words: total saponins, Opuntia Milpa Alta, colorimetry, mass fraction, ultrasonic extraction

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