Cereal Research Communications

, Volume 38, Issue 2, pp 233–242 | Cite as

Interrelationships among some quality characteristics in dent corn (Zea mays L.)

  • O. BilginEmail author
  • H. H. Orak
  • K. Z. Korkut
  • İ. Başer
  • A. Orak
  • A. Balkan
Open Access


The interrelationships among the grain protein, oil, fatty acids, starch, Na, K, Fe concentrations and chemical grain characteristics were determined by correlation analyses in thirty-five commercial dent corn hybrids. An increase in oil content of the corn is accompanied by a decrease in starch content and by an increase in caproic acid content. The correlation coefficients involving protein content of corn hybrids with oil content (r = 0.066) and with saturated fatty acid (SFA) (r = −0.247*) evidence that protein content is more related to fatty acid distribution than the oil quantity. Linear relationships between refractive index (RI) (nD40 °C) and saturated fatty acid (r = 0.369**) and between refractive index and oleic acid (r = 0.364**), and between iodine number (IN) and unsaturated fatty acid (UFA) were determined. In addition, oleic acid is strongly correlated with linoleic (r = −0.769**) and linolenic acids (r = −0.335**).


corn correlation oil protein fatty acids iodine number refractive index 


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© Akadémiai Kiadó, Budapest 2010

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • O. Bilgin
    • 1
    Email author
  • H. H. Orak
    • 2
  • K. Z. Korkut
    • 1
  • İ. Başer
    • 1
  • A. Orak
    • 1
  • A. Balkan
    • 1
  1. 1.Department of Field Crops Agricultural FacultyNamık Kemal UniversityTekirdaǧTurkey
  2. 2.Department of Food Technology, Vocational School of Technical SciencesNamık Kemal UniversityTekirdaǧTurkey

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