Refined Soybean Oil

About This Product

Refined soybean oil is solvent-extracted from the seed of Glycine max, then degummed, neutralised, bleached and deodorised. It carries CAS number 8001-22-7 and the INCI name Glycine Soja Oil. Degumming is a distinctive step in soybean processing because the crude oil is rich in phospholipids, which are recovered at that stage and sold separately as lecithin. Soybean oil is a polyunsaturated soft oil. Linoleic acid makes up roughly 51 percent of its fatty acids, oleic around 23 percent, palmitic about 11 percent and alpha-linolenic 7 to 8 percent. Polyunsaturated chains carry two or three double bonds, each one a site where oxygen can attack, so the oil is markedly less stable under heat and storage than monounsaturated or saturated fats. The alpha-linolenic fraction in particular is responsible for the reversion flavour, a characteristic grassy or painty note that can develop even at low peroxide values. Manufacturers manage this with antioxidants, nitrogen blanketing, light-barrier packaging or high-oleic varieties bred to reduce the unstable fractions. It is used in dressings, sauces, mayonnaise and margarine, in bakery and general food processing, and as a frying oil where cost matters more than fry life. Industrially it is a major biodiesel feedstock and is used in alkyd resins, coatings and inks. Bio Green Oils and Fats supplies refined soybean oil to specification on fatty acid profile, free fatty acid, peroxide and iodine value, colour, cold test and moisture.