Study on the process for extracting carotenoids from tagetes
In this paper, the best extraction conditions for carotenoids in tagetes by supercritical fluid extraction were investigated systemically. The optimization of extraction method of carotenoids from tagetes was obtained by using orthogonal test design that optimized the affecting factors such as the extraction temperature, the extraction pressure and the extraction time on the base of single factor experiments. The results showed that the optimal extraction condition was: 62℃, 48MPa and 178min. Under this condition, the yield of carotenoids can reach to 6.9775mg/g. And the character of the production was identified.