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Relationship Among the Phytic Acid and Protein Content During Maize Grain Maturation

Relationship Among the Phytic Acid and Protein Content During Maize Grain Maturation The accumulation of phytic acid with relation to the deposition of the protein component in grain during maturation of three maize varieties grown under the same topographical and agrotechnical conditions over 2 crop years was investigated. Phytic acid was determined by the spectrophotometric method of Mohamed et al. (1986). Phytic acid content increased significantly (P = 0.05) up until the late stage of dough grain maturity. Afterwards, until full grain maturity, no significant changes of phytic acid content have been obtained. At the same time, changes of phytic acid content expressed on a dry matter basis correlate highly significantly (P = 0.001) and negatively with total nitrogen in both vegetation years (r = ‐0.848 and r = ‐0.845) and alpha‐aminonitrogen content (r=‐0.799 and r = ‐0.792), but highly significantly (P = 0.001) and positively with prolamine content (r = 0.823 and 0.654). Grain maturation under conditions of increased moisture and lower temperature resulted in lower phytic acid level. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Agronomy and Crop Science Wiley

Relationship Among the Phytic Acid and Protein Content During Maize Grain Maturation

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References (10)

Publisher
Wiley
Copyright
Copyright © 1996 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0931-2250
eISSN
1439-037X
DOI
10.1111/j.1439-037X.1996.tb00448.x
Publisher site
See Article on Publisher Site

Abstract

The accumulation of phytic acid with relation to the deposition of the protein component in grain during maturation of three maize varieties grown under the same topographical and agrotechnical conditions over 2 crop years was investigated. Phytic acid was determined by the spectrophotometric method of Mohamed et al. (1986). Phytic acid content increased significantly (P = 0.05) up until the late stage of dough grain maturity. Afterwards, until full grain maturity, no significant changes of phytic acid content have been obtained. At the same time, changes of phytic acid content expressed on a dry matter basis correlate highly significantly (P = 0.001) and negatively with total nitrogen in both vegetation years (r = ‐0.848 and r = ‐0.845) and alpha‐aminonitrogen content (r=‐0.799 and r = ‐0.792), but highly significantly (P = 0.001) and positively with prolamine content (r = 0.823 and 0.654). Grain maturation under conditions of increased moisture and lower temperature resulted in lower phytic acid level.

Journal

Journal of Agronomy and Crop ScienceWiley

Published: Apr 1, 1996

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