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Citation: FU Yu-Jie, ZU Yuan-Gang, ZHAO Chun-Jian, LI Chun-Ying. Supercritical CO₂ Extraction of Flavonoids from Licorice[J]. Chinese Journal of Applied Chemistry, ;2003, 20(12): 1217-1219. shu

Supercritical CO₂ Extraction of Flavonoids from Licorice

1.
Key Laboratory of Forest Plant EcologyNortheast Forestry University, Ministry of Education, Harbin 150040

Corresponding author: ZU Yuan-Gang,
Received Date: 14 April 2003
Available Online: 14 July 2003

Supercritical CO₂ extraction was applied to the extraction of flavonoids from licorice. The optimized conditions are: CO₂ pressure 30 MPa, temperature 50℃, solid to entrainer ratio 1:5(g/mL), CO₂ flow rate 10 kg/h, separation pressure 5.5 MPa temperature 40℃. Results showed that the flavonoids yield obtained by supercritical CO₂ extraction was 2.2 times that obtained by common solvent extraction method.
- licorice,
- flavonoid,
- supercritical CO₂ extraction
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Supercritical CO₂ Extraction of Flavonoids from Licorice