Effect of Gamma Irradiation on the Nutritional Quality of Maize Cultivars (Zea mays) and Sorghum (Sorghum bicolor) Grains

Authors

  • A.H. Rushdi Mohamed Sudanese Atomic Energy Corporation, Khartoum, Sudan
  • M. Eltayeb Mohamed Department of Food Science and Technology, Faculty of Agriculture, University of Khartoum, Khartoum, Sudan
  • A.M. Osman Gammaa National Center for Research, Environment and Natural Resource Research Institute, Khartoum, Sudan
  • E.E. Diab National Center for Research, Environment and Natural Resource Research Institute, Khartoum, Sudan
  • B. Hassan Amro National Center for Research, Environment and Natural Resource Research Institute, Khartoum, Sudan

DOI:

https://doi.org/10.3923/pjn.2009.167.171

Keywords:

Gamma irradiation, mineral bio-availability, phytic acid, protein fraction, tannin

Abstract

To investigate the effect of gamma irradiation on the nutritional quality of maize and sorghum grains, packs were exposed to doses of 0 and 2 kGy in a 60 Co package irradiator. Irradiated and non-irradiated samples were stored at refrigeration temperatures. Proximate composition, minerals content, minerals bio-availability, tannins content, phytic acid content, protein fractions and in vitro protein digestibility were evaluated. The results indicated that gamma irradiation caused no effect on proximate composition, minerals content and minerals bioavailability. For protein fractions, in both maize cultivars no significant differences were observed in all fractions, except in prolamins and glutelins of Maize 75. While for sorghum significant increase in globulins, prolamins and glutelins was observed. While, gamma irradiation reduced the phytic acid and tannins contents significantly. The in vitro protein digestibility of maize cultivars was increased significantly, while the digestibility of sorghum was reduced.

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Published

15.01.2009

Issue

Vol. 8 No. 2 (2009)

Section

Research Article

License

Copyright (c) 2009 Asian Network for Scientific Information

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

How to Cite

Mohamed, A. R., Mohamed, M. E., Gammaa, A. O., Diab, E., & Amro, B. H. (2009). Effect of Gamma Irradiation on the Nutritional Quality of Maize Cultivars (Zea mays) and Sorghum (Sorghum bicolor) Grains. Pakistan Journal of Nutrition, 8(2), 167–171. https://doi.org/10.3923/pjn.2009.167.171