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固体微波介质加热快速提取新鲜橘皮中挥发油组分
引用本文:郭英,崔德生,汪子明.固体微波介质加热快速提取新鲜橘皮中挥发油组分[J].分析化学,2009,37(3).
作者姓名:郭英  崔德生  汪子明
作者单位:1. 哈尔滨理工大学化学与环境工程学院,哈尔滨,150080
2. 吉林大学化学学院,长春,130012
基金项目:黑龙江省教育厅科学技术研究项目 
摘    要:对传统微波加热模式进行了改进,以具有良好微波吸收性能的微波吸收固体介质取代传统溶剂和水,将其加入到新鲜样品的提取体系,达到快速升温的目的.将改进的微波辅助无溶剂法应用于提取新鲜植物样品中挥发油组分,并考察了3种微波吸收介质(羰基铁粉、石墨粉和活性炭粉)对提取结果的影响.结果证明:对于新鲜样品,除活性炭粉无法使用外,羰基铁粉和石墨粉均适用.在20 g微波吸收介质及85 W微波功率的加热作用下,仅需30 min即可将100 g样品中的挥发油提取完全.通过与传统微波辅助无溶剂法、微波辅助水蒸馏法和传统水蒸馏法比较,改进的微波辅助无溶剂法具有提取时间短(30 min)、耗电量小(0.43 kW · h/kg)等优点,且所得挥发油组分无明显差别.此外,还考察了烘干过程对橘皮挥发油组成的影响,发现橘皮挥发油的组成受烘干影响较大.

关 键 词:微波吸收介质  微波辅助无溶剂法  挥发油  新鲜橘皮

Fast Determination of Essential Oil Extracted from Fresh Orange Peel by Improved Solvent-free Microwave Extraction
GUO Ying,CUI De-Sheng,WANG Zi-Ming.Fast Determination of Essential Oil Extracted from Fresh Orange Peel by Improved Solvent-free Microwave Extraction[J].Chinese Journal of Analytical Chemistry,2009,37(3).
Authors:GUO Ying  CUI De-Sheng  WANG Zi-Ming
Institution:The School of Chemistry and Environmental Engineering;Harbin University of Science and Technology;Harbin 150080;College of Chemistry;Jilin University;Changchun 130012
Abstract:Microwave absorption mediums(MAM) were first added into fresh sample system in order to improve conventional microwave heating mode using solvent or water to absorb microwave energy.Then,the improved solvent-free microwave extraction(ISFME) was first used in the extraction of essential oil from fresh plant material(orange peel).Three kinds of MAM,such as carbonyl iron powders(CIP),graphite powders(GP) and active carbon powders(ACP),were examined in ISFME.The results indicated that both CIP and GP were suita...
Keywords:Microwave absorption medium  improved solvent-free microwave extraction  essential oil  fresh orange peel  
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