most important of the provitamins A. Widely distributed in the plant and animal kingdom. In plants it occurs almost always together with chlorophyll. Isolation from carrots .... Deep-purple, hexagonal prisms from benzene + methanol. Red, rhombic, almost square leaflets from petroleum-ether .... Use: yellow coloring agent for foods.
Karotiin - taimerasvas esinev värviline, 40 süsinikuaatomit ja rohkelt kaksiksidemeid sisaldav süsivesinik, millest alfa-, beeta- ja gammakarotiin on A-vitamiini provitamiinid.
