微波和超临界CO2萃取杜仲籽油工艺研究

食品科学 ›› 2006, Vol. 27 ›› Issue (6): 131-135.

微波和超临界CO2萃取杜仲籽油工艺研究

麻成金, 张永康, 马美湖, 欧阳辉, 黄群

吉首大学食品科学研究所；湖南省林产化工工程重点实验室；湖南农业大学食品科技学院

出版日期:2006-06-15 发布日期:2011-09-22

Study on Extraction Technology of Oil from Eucommia Seeds with Microwave and Supercritical CO2

MA Cheng-Jin, ZHANG Yong-Kang, MA Mei-Hu, 欧Yang-Hui, HUANG Qun

1.Institute of Food Science, Jishou University, Jishou 416000, China; 2.Key Laboratory of Hunan Forest Product and Chemical Industry Engineering, Zhangjiajie 427000, China; 3.College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China

Online:2006-06-15 Published:2011-09-22

摘要/Abstract

摘要： 通过微波萃取和超临界CO2萃取杜仲籽油的正交试验,考察影响萃取效果的主要因素,寻求最佳萃取工艺条件。微波萃取最佳工艺条件为:以环己烷为萃取剂,原料粉碎度40目,溶剂与物料质量比值为5.0,微波功率700W,每次微波辐射时间50s,微波累计辐射8次,在此条件下油脂得率为27.07%。超临界CO2萃取的最佳工艺条件为:萃取压力35MPa、萃取温度45℃、萃取时间70min、分离温度30℃、CO2流量25～30kg/h,原料粉碎度40目,在此条件下油脂得率27.76%。并比较不同提取方法对油脂得率和油脂品质的影响。结果表明,微波萃取所需时间最短,油脂得率较高;超临界CO2萃取所得杜仲籽油的品质最优,是提取优质杜仲籽油的首选方法。

关键词: 杜仲籽油, 超临界CO2萃取, 微波萃取, 工艺条件, 理化指标

Abstract: Eucommia seed oil was obtained with SC-CO2 (supercritical CO2) and microwave. The optimum conditions of the microwave extraction were obtained by orthogonal experiment as follows: cyclohexane solvent, the ratio of solvent to material 5.0, the microwave power 700W, radiation time 50s, radiation times 8 and the material particle size 40 mesh. The orthogonal experiment was used to optimize the SC-CO2 extraction conditions, and the optimum conditions were determined: the extraction pressure 35MPa, the extraction temperature 45℃, the separation temperature 30℃, the extraction time 70 min, the material particle size 40 mesh and the CO2 flow rate 25～30kg/h. The yield of oil obtained by SC-CO2 and microwave is 27.76%and 27.07%, respectively. The yield and quality of eucommia seed oil with different extraction methods were compared. Results show that extraction time of microwave is shorter than SC-CO2, while the quality of eucommia seed oil by SC-CO2 is better than microwave. So the SC-CO2 extraction is better technique of extracting oil from eucommia seed.

Key words: eucommia seed oil, supercritical carbon dioxide extraction, microwave extraction, technology, physics and chemistry index

麻成金, 张永康, 马美湖, 欧阳辉, 黄群. 微波和超临界CO2萃取杜仲籽油工艺研究[J]. 食品科学, 2006, 27(6): 131-135.

MA Cheng-Jin, ZHANG Yong-Kang, MA Mei-Hu, 欧Yang-Hui, HUANG Qun. Study on Extraction Technology of Oil from Eucommia Seeds with Microwave and Supercritical CO2[J]. FOOD SCIENCE, 2006, 27(6): 131-135.

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