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Position: Home > Articles > STUDY ON EXTRACTION OF WHEAT GERM OIL WITH SUPERCRITICAL CARBON DIOXIDE Journal of Inner Mongolia Agricultural University(Natural Science Edition) 2006,27 (1) 1-6

超临界CO_2流体萃取小麦胚芽油的研究

作者：

贺银凤;张静姝;王新亮;田建军;张开屏

单位：

内蒙古农业大学食品科学与工程学院

关键词：

超临界CO_2流体萃取;小麦胚芽油;维生素E;脂肪酸

摘要：

采用超临界CO2流体萃取技术,从小麦胚芽中萃取小麦胚芽油,探讨萃取工艺对油的萃取率、维生素E含量、脂肪酸组分的影响。研究结果表明,萃取时间1h;CO2流量15L/h;萃取压力的适宜选择范围在25MPa~40MPa之间;萃取温度要根据萃取压力的选择而定,在低于30MPa的压力萃取,选择的温度范围应在35℃以下,在高于35MPa时,萃取温度在40℃~45℃;分离压力的选择范围是6MPa~8MPa;分离温度的选择范围是40℃~50℃;胚芽油萃取率达10.43%。小麦胚芽油中维生素E的最高萃取量253.7mg/100g。不同萃取工艺参数对维生素E萃取量的影响依次是:萃取温度>分离温度>分离压力>萃取压力。不同的工艺条件萃取的小麦胚芽油中脂肪酸的组分稳定。

译名：

STUDY ON EXTRACTION OF WHEAT GERM OIL WITH SUPERCRITICAL CARBON DIOXIDE

作者：

HE Yin-feng, ZHANG Jing-shu, WANG Xin-liang, TIAN Jian-jun, ZHANG Kai-ping (College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018,China)

关键词：

supercritical carbon dioxide extraction; wheat germ oil; vitamin E; fatty acids

摘要：

Wheat germ oil was extracted with the technology of supercritical carbon dioxide. The effects of extraction conditions on the rate of wheat germ oil, the content of vitamin E and the component of fatty acids were studied. The result showed that if the oil was extracted from wheat germ for 1h and by , 15L/h of the carbon dioxide flow rate, the temperature of extraction should be changed according to extracting pressure. When the extracting pressure was below 30Mpa, the suitable extraction temperature was under 35℃. When the extracting pressure was above 35 Mpa, the temperature was under 40℃～45℃. The pressure of separation of oil from CO_2 were used from 6 to 8Mpa, the temperature could be used from 40 to 45℃. Under this extraction condition, the rate of oil extracted from wheat germ was 10.43%. The highest content of vitamin E in oil was 253.7mg/100g. The effects of extraction conditions on content Vitamin E was the extracting temperature >the temperature of separation>the pressure of separation>the pressure extraction. The processing condition didn't show close relationship with the component of fatty acids.

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超临界CO_2流体萃取小麦胚芽油的研究

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内蒙古农业大学学报(自然科学版)

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