对天然β胡萝卜素的提取方法进行了研究．β胡萝卜素是最重要的维生素Ａ 原，而维生素Ａ 对人的视觉及多项生理机能具有极为重要的作用，为了避免化学合成法所得产品对人体副作用较多的缺点，并针对从盐藻中提取天然产品局限性较大等问题，以生产玉米淀粉的副产物玉米蛋白粉为原料，选择适当的萃取剂，采用萃取—层析法提取天然β胡萝卜素，取得较高收率．此方法与盐藻法相比，具有较高的社会与经济效益． The natural β-carotene extraction methods were studied. β-carotene is the most important vitamin A original, and vitamin A on human vision and a number of physiological functions have a very important role, in order to avoid the chemical synthesis of products resulting from the side effects of the human body more disadvantages, and from Dunaliella In the extraction of natural products, such as the larger limitations of corn starch by-product of the production of corn gluten meal as raw material, select the appropriate extractant, extraction - chromatography extraction of natural β carotene, and achieved higher yields. Compared with Dunaliella method, this method has high social and economic benefits.