Abstract
AbstractTen solvent systems representing a wide range in polarity were highly variable in their abilities to extract the total lipids from field pea and lentil flours and starches. Propanol/water (3 : 1v/v) extracted the most lipid from lentil flour and both legume starches. Chloroform/methanol (2:1 v/v) and benzene/ethanol (4:1 v/v) gave consistently high recoveries of total lipids from both flours but appeared to be less effective with starches. Fractionation of the purified flour lipids demonstrated that propanol/water extracted phospholipids and glycolipids quite efficiently but chloroform/methanol and benzene/ethanol gave high recoveries of both nonpolar and polar lipids. These neutral, phospho‐ and glycolipids from the two legume flurs were highly polyunsaturated, containing 35–50% linoleic and 5–21% linolenic acid, and would be susceptible to oxidative rancidity. Purified lipids from legume starches were recovered as neutral lipids primarily and yields were very low.
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