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Research Progress of Deep Eutectic Solvents in Extraction of Plant Flavonoids
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作者 Zhen LIN Shengmei XU +2 位作者 Shaomei CHEN Cui WANG Jian CHEN 《Agricultural Biotechnology》 2024年第3期34-40,44,共8页
As a new type of green solvents,deep eutectic solvents(DESs)have the advantages of strong extraction ability,designability,simple preparation,low price,recoverability and biodegradation,and show great application pote... As a new type of green solvents,deep eutectic solvents(DESs)have the advantages of strong extraction ability,designability,simple preparation,low price,recoverability and biodegradation,and show great application potential in the field of plant flavonoid extraction.In this paper,the definition,classification and preparation methods of DESs were introduced.The effects of DES composition,molar ratio of DES components,water content of DES systems,liquid-material ratio,extraction temperature,extraction time and extraction auxiliary techniques on the extraction yield of plant flavonoids were expounded.The recycling methods of DESs were summarized.Existing problems of DESs in the field of plant flavonoids extraction were pointed out,and further research direction and trend were analyzed and prospected. 展开更多
关键词 Deep eutectic solvent Plant flavonoid extraction assistive technique REGENERATION
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The optimization of ultrasonic-microwave assisted synergistic extraction of Lotus plumule extract rich in flavonoids and its hypoglycemic activity 被引量:2
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作者 Qiuzhe Li Xiaoqing Li +1 位作者 Baodong Zheng Chao Zhao 《Food Production, Processing and Nutrition》 2021年第1期263-273,共11页
Lotus(Nelumbo nucifera Gaertn),a kind of perennial aquatic plant,is widely cultivated and consumed by people in Asian countries.Lotus plumule flavonoids(LPF)have been recognized as a hypoglycemic agent.LPF was optimal... Lotus(Nelumbo nucifera Gaertn),a kind of perennial aquatic plant,is widely cultivated and consumed by people in Asian countries.Lotus plumule flavonoids(LPF)have been recognized as a hypoglycemic agent.LPF was optimally obtained using novel ultrasonic-microwave assisted synergistic extraction(UMSE)method by response surface methodology(RSM)on the basis of the results of single-factor experiments.Furthermore,the hypoglycemic activity of LPF was investigated by measuring the body weight,fasting blood glucose(FBG)level,and oral glucose tolerance test(OGTT)and analyzing the physiological indexes in streptozotocin-diabetic mice model.The optimum extraction conditions consisted of microwave power 355 W,ultrasonic power 423 W,extraction time 15 min,solid-liquid ratio 1:40,ultrasound/interval time 1/0,and ethanol concentration 70%with the maximum LPF yield of 2.62%.LPF supplementation significantly decreased the body weight,FBG,OGTT,serum total cholesterol(TC),serum total triglycerides(TG),and insulin levels,indicating the antidiabetic activity of LPF.This research verified that the UMSE technique was highly efficient to extract LPF to the maximum extent and the flavonoids from L.plumule exhibited hypoglycemic activity,which showed broad development and application prospects. 展开更多
关键词 Lotus plumule FLAVONOIDS ultrasonic-microwave assisted synergistic extraction HYPOGLYCEMIC
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超声-微波协同辅助溶剂法提取喜树果中黄酮化合物的研究 被引量:12
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作者 杨国恩 卜丽婷 陈福 《光谱实验室》 CAS CSCD 北大核心 2010年第1期27-31,共5页
超声-微波协同辅助溶剂法和普通溶剂法提取喜树果黄酮,紫外-可见分光光度法确定其含量。喜树果中黄酮化合物的优化工艺为:提取时间4—8min、提取溶剂中乙醇体积分数70%、料液比1∶6,优化工艺条件下总黄酮的产率可达1.13%。与普通溶剂法... 超声-微波协同辅助溶剂法和普通溶剂法提取喜树果黄酮,紫外-可见分光光度法确定其含量。喜树果中黄酮化合物的优化工艺为:提取时间4—8min、提取溶剂中乙醇体积分数70%、料液比1∶6,优化工艺条件下总黄酮的产率可达1.13%。与普通溶剂法相比,超声-微波协同辅助溶剂法提取时间大为缩短,工艺效率显著提高,是一种具有绝对优势的喜树果中黄酮化合物的提取方法。 展开更多
关键词 超声-微波协同辅助溶剂法 普通溶剂法 喜树果 黄酮化合物 紫外-可见分光光度法
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环境有机污染物检测技术及其应用 被引量:39
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作者 饶竹 《地质学报》 EI CAS CSCD 北大核心 2011年第11期1948-1962,共15页
随着地质工作重点由资源向资源与环境并重的转变,环境有机污染物检测技术成为地质调查和地质科研工作新的重要技术支撑。环境有机污染物检测技术主要分为样品采集与保存、样品前处理以及检测等部分。本文简述了地质行业环境有机污染物... 随着地质工作重点由资源向资源与环境并重的转变,环境有机污染物检测技术成为地质调查和地质科研工作新的重要技术支撑。环境有机污染物检测技术主要分为样品采集与保存、样品前处理以及检测等部分。本文简述了地质行业环境有机污染物检测技术的发展和现状;介绍了环境有机样品的采集与保存方法;从分析原理、基本结构、应用范围、存在的问题等方面重点介绍了固相萃取、快速溶剂萃取、凝胶渗透色谱、吹扫-捕集等有机样品提取、净化、进样等前处理技术以及气相色谱、液相色谱和气相色谱-质谱联用检测技术;同时也对近年快速发展的全二维气相色谱、超高效液相色谱和液相色谱-质谱等新技术作了评述。文章收集了近年环境有机分析测试技术应用研究文献四十多篇。 展开更多
关键词 环境有机污染物检测试技术 样品采集与保存 液-液萃取 固相萃取 固相微萃取 基体分散固相萃取 膜萃取 静态顶空进样 吹扫-捕集进样 凝胶渗透色谱 索氏抽提 快速溶剂萃取 微波萃取 超临界流体萃取 超声萃取 气相色谱 全二维气相色谱 高效液相色谱 超高效液相色谱 气相色谱-质谱 液相色谱-质谱
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