超临界二氧化碳萃取大蒜油

JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE)

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Extraction of garlic oil with a freeze-rying treatment and supercritical carbon dioxide

ZHAI Guo-dong¹；GUAN Xin²；PAN Guang-min¹；GUAN Cong-sheng¹；DU Ai-ling¹

1. College of Chemistry and Chemical Engineering，Shandong University，Jinan 250061，China；2. College of Life Science，Shandong University,Jinan 250100，China

Received:2007-01-09 Revised:1900-01-01 Online:2007-10-24 Published:2007-10-24
Contact: ZHAI Guo-dong

Abstract

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

CLC Number:

Q949.718.23

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 .