Supercritical fluids extraction of capillarisin from Artemisia capillaris and its inhibition of in vitro growth of hepatoma cells

作者：Yang Chih Chiang; Lee Miau Rong; Hsu Shih Lan; Chang Chieh Ming J^*

来源：Journal of Supercritical Fluids, 2007, 42(1): 96-103.

DOI：10.1016/j.supflu.2006.12.022

• supercritical carbon dioxide extraction
• ethyl-acetate addition
• Artemisia capillaris T
• capillarisin
• human hepatoma cells
• growth inhibition

This work studies the supercritical carbon dioxide (SC-CO2) extractions of capillarisin from Artemisia capillaris T. and the effect of the extracts on the growth inhibition of two human hepatoma cells (Hep-G2, HUH7) and mouse liver cells (BNL). A two-factor central composite experimental design at 50 degrees C (323 K), a 2 h extraction time with pressures from 2000 psig (13.89 MPa) to 3000 psig (20.79 MPa) and an ethyl-acetate addition ratio from 5 to 10 wt%, were adopted to determine that the purity of capillarisin corresponds to the inhibition concentration (IC50 values) of the SC-CO2 extracts tested for Hep-G2 and HUH7 cells. The addition ratio of ethyl-acetate is the most important parameter in controlling the purity of capillarisin in the extracts. Experimental results indicated that adding 7.5 wt% ethyl-acetate to SC-CO2 extractions at 2500 psig (17.34 MPa) and 50 degrees C (323 K) yielded the highest purity of capillarisin (39.52 wt%) and the greatest growth inhibition for two hepatoma cells. The tested concentrations of these SC-CO2 extracts were from 15 to 400 mu g/mL revealed that the IC50 values of 72 h cultivated Hep-G2 and HUH7 cells were all less than 50 mu g/mL.

• 出版日期2007-8
• 单位中国医科大学