| 摘要 |
<p>This invention pertains to the preparation of a sterol ester-enriched food ingredient utilizing a base-catalyzed tranesterification of free sterol with fatty acyl glyceride. Phytosterols are subject to transesterification with fatty acyl glyceride from vegetable oils in the presence of an alkali catalyst. The reaction is performed under vacuum in the range of 0.01-1 Torr. Following an initial period of transesterification, the reaction mixture is distilled to remove glycerol to enhance the formation of sterol esters. A sterol ester-rich fraction can be isolated from the reaction mixture using organic solvents in combination with aqueous washes.</p> |
