| 盾叶薯蓣总皂苷超声提取及动力学 |
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| 引用本文： | 牛春玲,吴胜举,沈壮志,郭树琴,郝长春.盾叶薯蓣总皂苷超声提取及动力学[J].生物加工过程,2009,7(4):20-23. |
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| 作者姓名： | 牛春玲 吴胜举 沈壮志 郭树琴 郝长春 |
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| 作者单位： | 陕西师范大学,物理学与信息技术学院,西安,710062 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 考察了乙醇体积分数、溶剂用量、超声时间、超声功率和超声频率对盾叶薯蓣总皂苷提取率的影响,研究了以体积分数70%乙醇溶液或水作溶剂从盾叶薯蓣中超声提取总皂苷的动力学模型。结果表明,在扩散过程中超声提取薯蓣总皂苷的动力学模型满足非定常扩散方程,相关系数为r=0.95,最佳超声时间为40min。
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| 关 键 词： | 盾叶薯蓣 皂苷 提取 超声 |
Kinetics of ultrasonic assisted extraction of saponin from Dioscorea zingiberensis C.H.Wright |
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| NIU Chun-ling,WU Sheng-ju,SHEN Zhuang-zhi,GUO Shu-qin,HAO Chang-chun.Kinetics of ultrasonic assisted extraction of saponin from Dioscorea zingiberensis C.H.Wright[J].Chinese Journal of Bioprocess Engineering,2009,7(4):20-23. |
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| Authors: | NIU Chun-ling WU Sheng-ju SHEN Zhuang-zhi GUO Shu-qin HAO Chang-chun |
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| Institution: | (College of Physics and Information Technology, Shaanxi Normal University, Xi＇an 710062, China) |
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| Abstract: | Effects of ethanol concentration,ratio of solvent to biomass,ultrasonic processing time,ultrasound power,and ultrasound frequency on extraction yield of gross the saponin were investigated.Water and aqueous ethanol(70%,v/v) were used to extract saponin from the Dioscorea zingiberensis C.H.Kinetics of the ultrasonic extraction was described as an unsteady-state diffusion model.The linear correlation coefficient r was 0.95.The optimal sonication time of saponin concentration in the extraction liquid reached 40 min. |
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| Keywords: | Dioscorea zingiberensis saponin extraction ultrasound |
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