Germination effect of soybean cv. BR-13 and Parana on phitic acid, total Pand trypsin inhibitors levels

The aim of this work was to evaluate the effect of germination on the antin utritional constituents of soybean, phytic acid, total P and trypsin inhibi tors that interfere with the utilization of proteins and other substances. The decrease of the nutrient utilization results in growth inhibition, hypo glycemia or damage to animal tissues. Seeds of soybean (Glycine maw (L.) Me rrill) cultivars BR-13 and Parana were incubated in germination chamber at 25 degrees\C and 100% of humidity, from 0 to 72 hours, and samples were col lected in intervals of six hours. The Parana cultivar presented higher amou nt of phytic acid, total phosphorus and trypsin inhibitors, than the BR-13 cultivar. The analysis of variance and comparison among the means indicated that, in 72 hours of germination, there was a significant increase (p<0.05 ) on the amount of total phosphorus (8.5% and 3.6% for BR-13 and Parana cul tivars, respectively) and on the level of trypsin inhibitors (22.05% and 17 .10% for BR-13 and Parana cultivars, respectively) while the amount of phyt ic acid decreased 15.96% and 9.46% for BR-13 and Parana cultivars, respecti vely.