Processes for the extraction of concentrate of esters of trans xanthophyll ester, trans - luteu00ecna from marigold flowers and a concentrate of carotenoid from a material of the plant

摘要

Process for the extraction of concentrate of esters of trans xanthophyll ester trans luteu00ecna from marigold flowers and a concentrate of carotenoid from a material of the plant.A process for the extraction of concentrated esters of trans xanthophyll.The process comprises (a) contacting the plant material containing the lutein esters with a solvent selected from an alcohol or a nitrile for a sufficient period of time to extract the withPosts without lutein material plant; (b) separating the alcohol or solvent and nitrile compounds dissolved in the same material not xanthophyll plant remainder; (c) contacting the plant materialThe remaining with a hydrocarbon solvent for a sufficient period of time to extract the xanthophyll ester of the material of the plant.The process results in a high yield of the product of purified esters.