Oil from the raw material can be divided into GanXingYou, half GanXingYou, not GanXingYou three categories. In the 12 GanXingYou carbon (bay acid), 16 carbon (palmitic acid), and 18 carbon (stearic acid) saturated fatty acid as the main body, basically have palm oil, tung oil etc. Half GanXingYou oleic acid and linoleic acid as the main body, still contain saturated fatty acid, much as Fried oil, margarine, shortening the raw materials of the grease, such as rapeseed oil, soybean oil, sesame oil, sunflower oil, corn oil, rice bran oil, cottonseed oil. Don't GanXingYou mainly by oleic acid composition, used for food, and use its not dry processing the cosmetics, the lubricating oil and pharmaceuticals, such as peanut oil, tea seed oil.
Oil from the fatty acid composition can be divided into oleic acid-linoleic acid type, type paper, linolenic acid type. One cottonseed oil, peanut oil, palm oil, sesame oil, corn oil, rice bran oil, sunflower seed oil belong to oleic acid-linoleic acid type oil, rapeseed oil belong to type oleic oil, soybean oil belong to linolenic acid type oil.
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