Optimization of Conditions for Cholesterol Removal from Rana Chensinensis Ovum Oil.

Chinese forest frog ovum oil is a medicinal food high in cholesterol. In the current study, we evaluated the relative efficiency of β-cyclodextrin, crosslinked β-cyclodextrin, and silica gel adsorption on cholesterol removal from Rana chensinensis ovum oil. Beta-cyclodextrin had the highest cholesterol reduction rate (60.84 ± 4.45%) among the three methods. We further evaluated the efficiency of cholesterol removal by beta-cyclodextrin in the presence of ethanol and higher (55°C) temperature. This resulted into cholesterol removal rate of as high as 76%. Interestingly, monounsaturated fatty acids increased from 4.96% to 29.12% after cholesterol removal. We conclude that beta-cyclodextrin is an excellent adsorbent for removing cholesterol from ovum oil. [ABSTRACT FROM AUTHOR]