EFFECT OF CONCENTRATIONS AND TYPE OF SALT SOLUTIONS ON THE EXTRACTION OF NITROGENOUS COMPOUNDS FROM PHASEOLUS VULGARIS SEEDS

Abstract

Effect of different salts, with varying concentrations on the extractability of nitrogenous compounds from three cultivars of Phaseolus vulgaris showed that maximum nitrogen extractability attained by the salts can be arranged on a decreasing order as follows: sodium carbonate, disodium phosphate, sodium citrate, magnesium chloride and sodium sulphate. The amount of nitrogen extracted can be arranged on decreasing order for each variety as follows: Swissblan, Contender and Giza and this agrees with the amount of total nitroten resp. protein in each variety and found to be 25.1%, 23.8% and 21.45%, respectively (NX 6.25 basis).