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没有经过提炼的食油,如豆油、菜籽油,都含有一定的毒性,对人体有害;经过脱色、脱嗅、脱胶、脱酸等较复杂工艺加工,去除了油脂中的有害物质,成精制油,如色拉油的化学结构为各种脂肪酸的三酰甘油
Not refined oil, such as soybean oil, rapeseed oil, contains certain toxicity, harmful to human body; after decolorization, odor removal, degumming, deacidification and other more complex processing, remove the harmful substances in oil, into refined oil , Such as salad oil chemical structure of various fatty acid triglyceride