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Nutritional Quality Evaluation of Seven Maize Varieties Grown in Ethiopia

Received: 17 July 2018    Accepted: 9 August 2018    Published: 11 September 2018
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Abstract

Maize is a predominant staple crop in sub-saharan Africa. Ethiopia is among the major maize producers in Africa and ranked third next to South Africa and Nigeria. The per capita consumption of maize in Ethiopia is about 60 kg per annum. Maize is an important crop to many African countries contributing to a significant daily energy intake. In addition to serving as a critical source of macro- and micronutrients, maize is also a rich source of many phytochemicals including carotenoid. However, there is limited information about the nutritional content of the different maize varieties growing in Ethiopia. The aim of this study was to compare nutritional composition among six yellow maize varieties and one selected white maize variety cultivated in Ethiopia. Maize varieties were collected from Ethiopian Agricultural Research Institute, Melkasa and Bako center. Proximate and mineral composition analysis was carried out using AOAC method. Total carotenoid level was investigated by UV Spectrophotometer. Proximate composition of maize varieties revealed in the range of moisture content (9.42 - 11.45%), total ash (1.37 - 1.74%), crude fat (5.13 - 7.22%), crude protein (9.69 - 15.30%), crude fiber (1.62 - 3.45%), carbohydrate (62.13 - 69.99%) and Energy (365.93 to 385.82 kal/100g). The mineral content ranged for Fe, Zn and Ca was 2.34 - 3.73 mg/100g, 2.31 - 2.93 mg/100g and 31.25 - 48.1mg/100g respectively. The minimum total carotenoid in the yellow maize varieties was 11.43 (Melkassa 7) and the maximum was 27.62 μg/g (Melkassa 1q). No carotenoid was detected in the white maize variety (BH 660). There was significant difference (P<0.05) among maize varieties in total carotenoid. Yellow maize varieties contain high amount of carotenoid than white maize varieties. Promotion of yellow maize varieties is vital to enhance antioxidant intake that reduce risk of diseases such as cardiovascular and cancer without altering intake of other nutrients.

Published in Biochemistry and Molecular Biology (Volume 3, Issue 2)
DOI 10.11648/j.bmb.20180302.11
Page(s) 45-48
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Maize Varieties, Carotenoid, Proximate Composition and Minerals

References
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[5] Bhupender K. et al (2012) Maize biology: An introduction. Indian Council of Agricultural Research (ICAR), Technical bulletin.
[6] Dewanto. V., Wu, X. Z., Liu, R. H. (2002) Processed sweet corn has higher antioxidant activity. Journal of Agriculture Food Chemistry, 50; 4959– 4964.
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[9] Fageer A. S. M, Tinay A. H. E (2004). Effect of genotype, malt pretreatment and cooking on in vitro protein digestibility and protein function of corn. Food chemistry, 84; 613-619.
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[18] Ndukwe O. K., Edeoga H. O., Omosun G. (2015). Varietal differences in some nutritional composition of ten maize (Zea mays L.) varieties grown in Nigeria. International journal of academic research and reflection, 5; 1-11.
[19] Queiroz V. P., Guimaraes P. E., Queiroz L. R., Guedes E. D., Vasconclos V. D., Guimaraes L. J., Ribeiro P. E. and Schaffer R. E. (2011). Iron and zinc availability in maize line, 31; 577-583.
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    Kidist Hailu Demeke. (2018). Nutritional Quality Evaluation of Seven Maize Varieties Grown in Ethiopia. Biochemistry and Molecular Biology, 3(2), 45-48. https://doi.org/10.11648/j.bmb.20180302.11

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    ACS Style

    Kidist Hailu Demeke. Nutritional Quality Evaluation of Seven Maize Varieties Grown in Ethiopia. Biochem. Mol. Biol. 2018, 3(2), 45-48. doi: 10.11648/j.bmb.20180302.11

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    AMA Style

    Kidist Hailu Demeke. Nutritional Quality Evaluation of Seven Maize Varieties Grown in Ethiopia. Biochem Mol Biol. 2018;3(2):45-48. doi: 10.11648/j.bmb.20180302.11

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  • @article{10.11648/j.bmb.20180302.11,
      author = {Kidist Hailu Demeke},
      title = {Nutritional Quality Evaluation of Seven Maize Varieties Grown in Ethiopia},
      journal = {Biochemistry and Molecular Biology},
      volume = {3},
      number = {2},
      pages = {45-48},
      doi = {10.11648/j.bmb.20180302.11},
      url = {https://doi.org/10.11648/j.bmb.20180302.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.bmb.20180302.11},
      abstract = {Maize is a predominant staple crop in sub-saharan Africa. Ethiopia is among the major maize producers in Africa and ranked third next to South Africa and Nigeria. The per capita consumption of maize in Ethiopia is about 60 kg per annum. Maize is an important crop to many African countries contributing to a significant daily energy intake. In addition to serving as a critical source of macro- and micronutrients, maize is also a rich source of many phytochemicals including carotenoid. However, there is limited information about the nutritional content of the different maize varieties growing in Ethiopia. The aim of this study was to compare nutritional composition among six yellow maize varieties and one selected white maize variety cultivated in Ethiopia. Maize varieties were collected from Ethiopian Agricultural Research Institute, Melkasa and Bako center. Proximate and mineral composition analysis was carried out using AOAC method. Total carotenoid level was investigated by UV Spectrophotometer. Proximate composition of maize varieties revealed in the range of moisture content (9.42 - 11.45%), total ash (1.37 - 1.74%), crude fat (5.13 - 7.22%), crude protein (9.69 - 15.30%), crude fiber (1.62 - 3.45%), carbohydrate (62.13 - 69.99%) and Energy (365.93 to 385.82 kal/100g). The mineral content ranged for Fe, Zn and Ca was 2.34 - 3.73 mg/100g, 2.31 - 2.93 mg/100g and 31.25 - 48.1mg/100g respectively. The minimum total carotenoid in the yellow maize varieties was 11.43 (Melkassa 7) and the maximum was 27.62 μg/g (Melkassa 1q). No carotenoid was detected in the white maize variety (BH 660). There was significant difference (P<0.05) among maize varieties in total carotenoid. Yellow maize varieties contain high amount of carotenoid than white maize varieties. Promotion of yellow maize varieties is vital to enhance antioxidant intake that reduce risk of diseases such as cardiovascular and cancer without altering intake of other nutrients.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Nutritional Quality Evaluation of Seven Maize Varieties Grown in Ethiopia
    AU  - Kidist Hailu Demeke
    Y1  - 2018/09/11
    PY  - 2018
    N1  - https://doi.org/10.11648/j.bmb.20180302.11
    DO  - 10.11648/j.bmb.20180302.11
    T2  - Biochemistry and Molecular Biology
    JF  - Biochemistry and Molecular Biology
    JO  - Biochemistry and Molecular Biology
    SP  - 45
    EP  - 48
    PB  - Science Publishing Group
    SN  - 2575-5048
    UR  - https://doi.org/10.11648/j.bmb.20180302.11
    AB  - Maize is a predominant staple crop in sub-saharan Africa. Ethiopia is among the major maize producers in Africa and ranked third next to South Africa and Nigeria. The per capita consumption of maize in Ethiopia is about 60 kg per annum. Maize is an important crop to many African countries contributing to a significant daily energy intake. In addition to serving as a critical source of macro- and micronutrients, maize is also a rich source of many phytochemicals including carotenoid. However, there is limited information about the nutritional content of the different maize varieties growing in Ethiopia. The aim of this study was to compare nutritional composition among six yellow maize varieties and one selected white maize variety cultivated in Ethiopia. Maize varieties were collected from Ethiopian Agricultural Research Institute, Melkasa and Bako center. Proximate and mineral composition analysis was carried out using AOAC method. Total carotenoid level was investigated by UV Spectrophotometer. Proximate composition of maize varieties revealed in the range of moisture content (9.42 - 11.45%), total ash (1.37 - 1.74%), crude fat (5.13 - 7.22%), crude protein (9.69 - 15.30%), crude fiber (1.62 - 3.45%), carbohydrate (62.13 - 69.99%) and Energy (365.93 to 385.82 kal/100g). The mineral content ranged for Fe, Zn and Ca was 2.34 - 3.73 mg/100g, 2.31 - 2.93 mg/100g and 31.25 - 48.1mg/100g respectively. The minimum total carotenoid in the yellow maize varieties was 11.43 (Melkassa 7) and the maximum was 27.62 μg/g (Melkassa 1q). No carotenoid was detected in the white maize variety (BH 660). There was significant difference (P<0.05) among maize varieties in total carotenoid. Yellow maize varieties contain high amount of carotenoid than white maize varieties. Promotion of yellow maize varieties is vital to enhance antioxidant intake that reduce risk of diseases such as cardiovascular and cancer without altering intake of other nutrients.
    VL  - 3
    IS  - 2
    ER  - 

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Author Information
  • Department of Food Science and Nutrition Program, Ethiopian Institute of Agricultural Research, Head Office, Addis Ababa, Ethiopia

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