METHOD FOR EXTRACTION OF CAROTENE FROM CAROTENE-CONTAINING MATERIALS Russian patent published in 2004 - IPC

FIELD: chemical technology. SUBSTANCE: invention relates to extraction of carotenes from carotene-containing materials. Method for extraction of carotenes from carotene-containing material, in particular, fats and oils of biological origin provides extraction of indicated carotene-containing materials with extractant comprising at least one component taken among the group including acetonitrile, N-methylpyrrolidone, N,N-dimethylformamide, N, N-dimethylacetamide, 4-formylmorpholine, 4-acetylmorpholine, 4-methylformalin, 4-phenylmorpholine to form two liquid phase. One phase is carotene-depleted residue phase and another phase is carotene-enriched phase followed by separation of two liquid phases. Invention provides increasing yield of carotenes in carrying out the direct extraction procedure. EFFECT: improved extraction method. 15 cl, 8 ex