Lipids of defatted soybean flakes: extraction and characterization
1969
Defatted soybean flakes contain ~3% crude lipid extractable with an azeotropic mixture of hexane:ethanol (79:21). Crude lipids contain 60% phospholipids together with sterols, triglycerides, sugars, amino acids and isoflavones. Palmitic acid content of phospholipids is nearly 3 times higher than that in typical soybean oil. Increase in palmitic acid is balanced by decreases in oleic and linoleic acids. The more intense flavours of soybean flakes are extracted with the azeotrope and hot 95% ethyl alcohol and the resulting flakes are much reduced in flavour.
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