Pea flour was obtained by industrial-scale heating and grinding of yellow peas. The technological treatment caused a decrease by up to 70% of antioxidant properties of pea products used as additives to lard or smoked lard.
It was found that yellow pea increased the stability of lard and of low erucic acid rapeseed oil. Fractions obtained from pea by extraction with solvents of various polarity demonstrated a distinct decrease of antioxidant properties. The greatest amounts of substances with antioxid.ant activity were extracted with ethanol, less by petroleum ether, and the smalest amounts by water.
Changes in fat and protein digestibility as well as in the solubility of high-caloric protein-lipid preparations during storage at accelerated autoxidation were investigated. It was observed that fat and protein digestibility gradually decreased and the solubility of preparations was considerably reduced with the growth of the peroxide number.