Content of phytic acid and inorganic phosphorus in vigna unguiculata and phaseolus vulgaris germinated at different temperatures

Abstract

The evolution of the concentration of phytic acid, inorganic phosphorus and total phosphorus in Vigna unguiculata and Phaseolus vulgaris according to different conditions of temperature and time of germination was studied. The optimum conditions of germination were established at 21 °C between 2 to 4 days. The variety Vigna unguiculata black heart presented the higher reduction of phytic acid at 21 °C, with 93,75 to 94,85 % decrease in two days, and in the content of inorganic phosphorus at 29 °C, with 23 times of increase in six days of germination. The results suggest a higher bioavailability of inorganic phosphorus and nutrients linked to it, generating legumes with higher nutritional value, which could be used in the production of improved foods for different population groups.