RECOMMENDED PRACTICES FOR SELECTING BLEACHING SOIL

Abstract

It is contained in the seeds and gives color to the oil during the oil separation process. Mainly carotenes and xanthophylls are found. They dissolve well in extraction solvents, so the amount of these substances in the extracted oil is higher than in the oil obtained by the pressing method. Carotenoids are found in the form of α- and β-carotenes in palm, flax, seed, soybean, sunflower, corn oils and are considered provitamin A. Among carotenoids, γ-carotenoid is found in oil and seeds in very small amounts or not at all. Soybean oil contains xanthophylls (lutein). The green color of rapeseed, soy, and palm oils is caused by the chlorophyll pigment they contain. The oil obtained from immature soybeans has a high content of chlorophyll pigment. Coloring substances are separated by adsorption method.