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Journal of Food Science and Technology

, Volume 48, Issue 6, pp 724–729 | Cite as

Effect of germination on the phytase activity, phytate and total phosphorus contents of rice (Oryza sativa), maize (Zea mays), millet (Panicum miliaceum), sorghum (Sorghum bicolor) and wheat (Triticum aestivum)

  • Marshall Arebojie AzekeEmail author
  • Samuel Jacob Egielewa
  • Mary Ugunushe Eigbogbo
  • Inegbenose Godwin Ihimire
Original Article

Abstract

The effect of germination on the level of phytase activity and the contents of phytates and phosphorus of five Nigeria grown cereal grains was studied. The cereals screened were rice (Oryza sativa), maize (Zea mays), millet (Panicum miliaceum), sorghum (Sorghum bicolor) and wheat (Triticum aestivum). Phytase activity was high (0.21–0.67 U g-1) in all samples. Phytate content ranged between 5.6 and 6.2 mg g-1 while total phosphorus content ranged between 3.3 and 4.3 mg g-1. During germination, the level of phytase activity increased and reached its maximal value after seven (16-fold), six (5-fold), five (7-fold), seven (3-fold) and eight (6-fold) days of germination for rice, maize, millet, sorghum and wheat respectively. After this initial increase, phytase activity declined slightly (P < 0.05). The increase in phytase activity during germination was accompanied by a significant reduction in phytate (P < 0.05) and a small but significant increase in total phosphorus.

Keywords

Cereal grains Phytase activity Phytate Phosphorus Germination 

Notes

Acknowledgements

The Return Research Grant/Fellowship awarded for this project by the Alexander von Humboldt Foundation, Bonn, Germany, is gratefully acknowledged.

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Copyright information

© Association of Food Scientists & Technologists (India) 2010

Authors and Affiliations

  • Marshall Arebojie Azeke
    • 1
    Email author
  • Samuel Jacob Egielewa
    • 1
  • Mary Ugunushe Eigbogbo
    • 1
  • Inegbenose Godwin Ihimire
    • 1
  1. 1.Department of BiochemistryAmbrose Alli UniversityEkpomaNigeria

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