University of Khartoum

Effect of germination on antinutritional factors, total, and extractable minerals of high and low phytate corn ( Zeamays L.) genotypes

Effect of germination on antinutritional factors, total, and extractable minerals of high and low phytate corn ( Zeamays L.) genotypes

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Title: Effect of germination on antinutritional factors, total, and extractable minerals of high and low phytate corn ( Zeamays L.) genotypes
Author: Sokrab, Awad M.; Ahmed, Isam A. Mohamed; Babiker, Elfadil E.
Abstract: Two corn genotypes, Var-113 (high phytate) and TL-98B-6225-9 · TL617 (low phytate) were germinated for 6 days. The germinated seeds were dried and milled. Phytic acid, polyphenols, and hydrochloric acid (HCl) extractable minerals were determined at intervals of two days of ger- mination. Phytic acid decreased significantly ( P 6 0.05) with a concomitant increase in HCl extract- able minerals, while polyphenol contents increased significantly ( P 6 0.05) with an increase in germination time. However, the major mineral content was initially decreased and then increased while that of trace minerals was increased with germination time. After 6 days of germination, the high phytate sample (Var-113) exhibited higher extractable calcium compared to the other geno- type, whereas the low phytate sample (TL-98B-6225-9 · TL617) showed higher extractable phospho- rus. Iron extractability was higher for the low phytate samples, while that of magnesium was higher for the high phytate sample. High correlation between lower phytate and higher extractable miner- als was noted as a function of longer germination time. Nevertheless, no correlation was observed between polyphenol content and mineral extractability level.
URI: http://khartoumspace.uofk.edu/handle/123456789/17859
Date: 2015-12-20


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