摘要
[目的]获得从罗汉果中提取甜苷的动力学模型。[方法]通过比较超声波辅助法和常规提取法的甜苷提取效果,并采用2种超声波动力学模型和1种常规动力学模型进行验证。[结果]在优化试验条件下,超声辅助提取的效率比常规提取高,该过程符合动力学方程:lnC=γlnt+λ,而常规提取符合ln C∞C∞-C=Kt+ln C∞C-∞C0方程。[结论]超声波频率过高,提取温度过高,提取时间过长时超声波提取过程将不受动力学控制。
[Objective] To obtain the dynamic models of extraction mogroside from Momordica grosvenori.[Method] Effects of ultrasonic-assisted and normal methods on the extraction result were compared,and the results were verified by two ultrasonic dynamic models and one normal dynamic model.[Result] The yield rate of mogroside was higher with ultrasonic method,and which was in accordance with kinetic equation;besides,the result of normal method was identical with equation.[Conclusion] The excessive ultrasonic frequency and extraction temperature would make the extraction process out of dynamic control.
出处
《安徽农业科学》
CAS
北大核心
2011年第10期5727-5729,共3页
Journal of Anhui Agricultural Sciences
基金
广西教育厅科研项目(200911MS335)
桂工业院科研项目(2009025JM004)
广西民族大学重大项目(2008ZD012)
广西科学研究与技术开发计划应用基础研究专项基金(桂科基0991005
桂科能0992028-13)
关键词
罗汉果
甜苷
超声波提取
常规提取
动力学
Mogroside
Momordica grosvenori
Ultrasonic extraction
Normal extraction
Dynamics
作者简介
张文清（1966-），女，湖北武昌人，副教授，从事天然产物化学的研究和教学工作
通讯作者，教授，博士，E—mail：aiqunyuan1999@sina．com
