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Effect of Different Sun Drying Surfaces on the Functional Properties and Microbial Loads of Unripe Plantain Flours

Received: 25 March 2017     Accepted: 25 April 2017     Published: 11 August 2017
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Abstract

In order to test the effect of commonly used traditional sun-drying surfaces on some qualities of the product, four traditional sun drying surfaces; wooden, corrugated iron sheet, rock and cement surfaces were used to sundry unripe plantain. The sundried samples were milled to flours. Functional, pasting properties and microbial loads of the resulting flours were determined using standard methods. Values of the functional properties determined except bulk density (packed) and solubility were higher in the rock followed by samples dried on cement surface compare to others. Functional properties except oil absorption and solubility generally improved with storage. Pasting property shows that, samples dried on the rock followed by samples dried on cement surface had the highest values in terms of peak viscosity, trough and final viscosity. There was no significant difference (P≥0.05) in breakdown and pasting temperature. Results of the microbial loads monitored for a period of two months show that at the initial stage, flours of samples sundried on rock had the highest microbial growth while samples dried on corrugated iron had the lowest. There was no significant difference (P≥0.05) in others. There was increase in microbial loads of samples dried on rock and corrugated iron but decreased in others after one month of storage. After storing for a period of two months, microbial loads of samples dried on the rock and cemented surfaces increased while no growth was recorded for samples from wooden and corrugated iron. The report from this research work revealed that rock and cemented surfaces are recommended for sun drying unripe plantain for better functionality of the flour while wood and corrugated iron surfaces are recommended based on microbial load for better storability.

Published in Frontiers in Environmental Microbiology (Volume 3, Issue 3)
DOI 10.11648/j.fem.20170303.12
Page(s) 50-55
Creative Commons

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), 2017. Published by Science Publishing Group

Keywords

Sun Drying Surfaces, Unripe Plantain, Rock Surface, Functional Properties, Microbial Loads

References
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  • APA Style

    Olorode Omobolanle Omowunmi, Ewuoso Latifat Motunrayo. (2017). Effect of Different Sun Drying Surfaces on the Functional Properties and Microbial Loads of Unripe Plantain Flours. Frontiers in Environmental Microbiology, 3(3), 50-55. https://doi.org/10.11648/j.fem.20170303.12

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    ACS Style

    Olorode Omobolanle Omowunmi; Ewuoso Latifat Motunrayo. Effect of Different Sun Drying Surfaces on the Functional Properties and Microbial Loads of Unripe Plantain Flours. Front. Environ. Microbiol. 2017, 3(3), 50-55. doi: 10.11648/j.fem.20170303.12

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    AMA Style

    Olorode Omobolanle Omowunmi, Ewuoso Latifat Motunrayo. Effect of Different Sun Drying Surfaces on the Functional Properties and Microbial Loads of Unripe Plantain Flours. Front Environ Microbiol. 2017;3(3):50-55. doi: 10.11648/j.fem.20170303.12

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  • @article{10.11648/j.fem.20170303.12,
      author = {Olorode Omobolanle Omowunmi and Ewuoso Latifat Motunrayo},
      title = {Effect of Different Sun Drying Surfaces on the Functional Properties and Microbial Loads of Unripe Plantain Flours},
      journal = {Frontiers in Environmental Microbiology},
      volume = {3},
      number = {3},
      pages = {50-55},
      doi = {10.11648/j.fem.20170303.12},
      url = {https://doi.org/10.11648/j.fem.20170303.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.fem.20170303.12},
      abstract = {In order to test the effect of commonly used traditional sun-drying surfaces on some qualities of the product, four traditional sun drying surfaces; wooden, corrugated iron sheet, rock and cement surfaces were used to sundry unripe plantain. The sundried samples were milled to flours. Functional, pasting properties and microbial loads of the resulting flours were determined using standard methods. Values of the functional properties determined except bulk density (packed) and solubility were higher in the rock followed by samples dried on cement surface compare to others. Functional properties except oil absorption and solubility generally improved with storage. Pasting property shows that, samples dried on the rock followed by samples dried on cement surface had the highest values in terms of peak viscosity, trough and final viscosity. There was no significant difference (P≥0.05) in breakdown and pasting temperature. Results of the microbial loads monitored for a period of two months show that at the initial stage, flours of samples sundried on rock had the highest microbial growth while samples dried on corrugated iron had the lowest. There was no significant difference (P≥0.05) in others. There was increase in microbial loads of samples dried on rock and corrugated iron but decreased in others after one month of storage. After storing for a period of two months, microbial loads of samples dried on the rock and cemented surfaces increased while no growth was recorded for samples from wooden and corrugated iron. The report from this research work revealed that rock and cemented surfaces are recommended for sun drying unripe plantain for better functionality of the flour while wood and corrugated iron surfaces are recommended based on microbial load for better storability.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Effect of Different Sun Drying Surfaces on the Functional Properties and Microbial Loads of Unripe Plantain Flours
    AU  - Olorode Omobolanle Omowunmi
    AU  - Ewuoso Latifat Motunrayo
    Y1  - 2017/08/11
    PY  - 2017
    N1  - https://doi.org/10.11648/j.fem.20170303.12
    DO  - 10.11648/j.fem.20170303.12
    T2  - Frontiers in Environmental Microbiology
    JF  - Frontiers in Environmental Microbiology
    JO  - Frontiers in Environmental Microbiology
    SP  - 50
    EP  - 55
    PB  - Science Publishing Group
    SN  - 2469-8067
    UR  - https://doi.org/10.11648/j.fem.20170303.12
    AB  - In order to test the effect of commonly used traditional sun-drying surfaces on some qualities of the product, four traditional sun drying surfaces; wooden, corrugated iron sheet, rock and cement surfaces were used to sundry unripe plantain. The sundried samples were milled to flours. Functional, pasting properties and microbial loads of the resulting flours were determined using standard methods. Values of the functional properties determined except bulk density (packed) and solubility were higher in the rock followed by samples dried on cement surface compare to others. Functional properties except oil absorption and solubility generally improved with storage. Pasting property shows that, samples dried on the rock followed by samples dried on cement surface had the highest values in terms of peak viscosity, trough and final viscosity. There was no significant difference (P≥0.05) in breakdown and pasting temperature. Results of the microbial loads monitored for a period of two months show that at the initial stage, flours of samples sundried on rock had the highest microbial growth while samples dried on corrugated iron had the lowest. There was no significant difference (P≥0.05) in others. There was increase in microbial loads of samples dried on rock and corrugated iron but decreased in others after one month of storage. After storing for a period of two months, microbial loads of samples dried on the rock and cemented surfaces increased while no growth was recorded for samples from wooden and corrugated iron. The report from this research work revealed that rock and cemented surfaces are recommended for sun drying unripe plantain for better functionality of the flour while wood and corrugated iron surfaces are recommended based on microbial load for better storability.
    VL  - 3
    IS  - 3
    ER  - 

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Author Information
  • Department of Food Technology, Moshood Abiola Polytechnic, Abeokuta, Nigeria

  • Department of Food Technology, Moshood Abiola Polytechnic, Abeokuta, Nigeria

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