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The most important function of soybean extruding is to destroy cell structure for easy oil extraction, blunt all kinds of enzymes, improve the oil yield, increase oil output and reduce solvent loss.
What is crude soybean oil?
Crude soybean oil is generally defined as oil extracted by solvent extraction or pressing process that contains certain impurities that are not suitable for consumption (or industry). The main component of crude soybean oil is a mixture of glycerol triglycerides (neutral oil) and non-glycerol ester substances (impurities).
What are the by-products of refining soybean oil?
Refining of soybean oil, to make a neutral, bland-flavored, and light-colored oil, results in several by-products. The by-products consist of various mixtures of phosphatides, unsaponifiables, glycerides, free fatty acids, and soap. Lecithin contains mostly hydratable phosphatides, together with some free fatty acids and neutral oil (glycerides).
How to get edible refined soybean oil?
And crude soybean oil extracted from both mechanical or solvent has impurities and should be refined through a series of oil refining process to get edible refined soybean oil. For over 20 years, Hongde Machinery has provided customers with high quality oil processing machines for various oilseeds oil extraction.