| 微波辅助提取香附精油的条件优化研究 |
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| 引用本文： | 龚盛昭,程江,杨卓如.微波辅助提取香附精油的条件优化研究[J].林产化学与工业,2006,26(3):100-104. |
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| 作者姓名： | 龚盛昭 程江 杨卓如 |
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| 作者单位： | 1. 华南理工大学,传热强化与过程节能教育部重点实验室,广东,广州,510640;广东轻工职业技术学院,轻化工程系,广东,广州,510300
2. 华南理工大学,传热强化与过程节能教育部重点实验室,广东,广州,510640 |
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| 基金项目： | 广东省佛山市产学研专项资金项目（2003A36） |
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| 摘 要： | 进行了微波辅助提取香附精油的研究。应用单因素试验和正交试验,考察了提取剂类型、微波功率、微波辐射时间、液料质量比、液料湿度和物料粒度对提取效果的影响,得到了微波辅助提取香附精油的最佳条件:以环己烷为溶剂,物料粒度0.28 mm,微波功率450 W,提取两次,每次90 s,每次用液料质量比为6∶1。提取液进行真空浓缩至不再有溶剂蒸出,得精油粗产品。往精油粗产品中加入乙醇溶解,放入-15℃冰箱中冷冻48 h,离心分离去除树脂状物质,过滤,滤液进行真空浓缩后,即得香附精油,产率约1.24%,纯度97.3%。
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| 关 键 词： | 精油 微波辅助提取 香附 |
| 文章编号： | 0253-2417（2006）03-0100-05 |
| 收稿时间： | 03 29 2005 12:00AM |
| 修稿时间： | 2005-03-29 |
Optimization on Microwave-assisted Extraction of Essential Oil from Cyperus rotundus L. |
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| GONG Sheng-zhao,CHENG Jiang,YANG Zhuo-ru.Optimization on Microwave-assisted Extraction of Essential Oil from Cyperus rotundus L.[J].Chemistry & Industry of Forest Products,2006,26(3):100-104. |
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| Authors: | GONG Sheng-zhao CHENG Jiang YANG Zhuo-ru |
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| Institution: | 1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education,South China University of Technology, Guangzhou 510640, China; 2. Department of Chemical Engineering, Guangdong Industry Technical College, Guangzhou 510300, China |
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| Abstract: | The applicability of microwave irradiation to assist the extraction of essential oil from Cyperus rotundus L. Was investigated. The effects of extraction variables, especially solvent type, microwave power, microwave irradiation time, material-solvent mass ratio, moisture content and particle size of materials on extraction efficiency were investigated using single factor test and orthogonal method. The optimum conditions are obtaine as follows: cyclohexane as solvent, material particle size 0.28 mm, extracting twice, microwave power 450 W, irradiation time 90 s, solvent-material mass ratio 6∶1. The extracted solution was concentrated under vacuum to give crude essential oil which was dissolved in ethanol and frozen at -15 ℃ for 48 h. The solution was then separated centrifugally and filtered to get rid of impurities. The essential oil with yield of 1.24 % and purity of 97.3 % was then obtained after distilling the liquor under vacuum. |
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| Keywords: | essential oil microwave-assisted extraction Cyperus rotundus L |
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