Abstract:

Objective: To study the appropriate extraction method of chlorogenic acid from fresh and dry leaves of artichoke. Methods: Using different concentration of hydrochloric acid, ethanol, microwave treatment and heat-treatment to extract chlorogenic acid from fresh leaves; different concentration of hydrochloric acid, ethanol were used to extract chlorogenic acid from dry leaves. The extraction rate was compared with those different extraction methods. Results: Extracted with 0.1M HCl and extracted with water after blanching leaves for 90 seconds showed highest extract efficient for fresh leaves. While 70%ethanol as the solvent showed high extraction rate for dry leaves of artichoke. Conclusion: It is practicable to adopt the appropriate chlorogenic acid extraction methods from fresh and dry leaves of artichoke.