Process for the extraction of natural carotenoid dyes

摘要

PCT No. PCT/EP95/03298 Sec. 371 Date Feb. 19, 1997 Sec. 102(e) Date Feb. 19, 1997 PCT Filed Aug. 18, 1995 PCT Pub. No. WO96/06138 PCT Pub. Date Feb. 29, 1996A process for the extraction of carotenoid dyes from pre-dried natural starting materials is described using compressed gases such as propane and/or butane in which organic entraining agents can be additionally added in order to facilitate and complete the extraction process. With the aid of this process highly concentrated carotenoid dyes are obtained in high yield.