超临界二氧化碳萃取大蒜油

摘要/Abstract

摘要： 采用冷冻干燥和超临界二氧化碳萃取相结合技术萃取大蒜油，通过均匀设计在萃取率和萃取温度、萃取压力、萃取时间、CO₂流量之间建立了理论模型，确定了SC-CO₂2萃取大蒜油的最佳工艺参数：萃取压力25MPa，萃取温度45℃，萃取时间5h，CO₂流量44kg/h，在此条件下萃取率可达1.19%.

关键词: 冷冻干燥, 超临界萃取, 均匀设计

Abstract: Extraction of garlic oil with a freeze-drying treatment and supercritical carbon dioxide was studied. The relationship between extraction ratio and extraction temperature, pressure, time and the flux of CO₂ were given by using a uniform design. The optimum extraction conditions are as following, extraction pressure 25MPa, temperature 45℃, time 5h and flux of CO₂ 44kg/h. The extraction ratio is about 1.19% at these extraction conditions.

Key words: freeze-drying, supercritical CO₂, uniform design

中图分类号:

Q949.718.23

翟国栋,管鑫,潘光民,管从胜,杜爱玲 . 超临界二氧化碳萃取大蒜油[J]. 山东大学学报(工学版), 2007, 37(5): 103-107 .

ZHAI Guo-dong,GUAN Xin,PAN Guang-min,GUAN Cong-sheng,DU Ai-ling . Extraction of garlic oil with a freeze-rying treatment and supercritical carbon dioxide[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(5): 103-107 .

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