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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), 2024. Published by Science Publishing Group

Keywords

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

References
[1] Akomolafe, O. M. and Aborisade, A. T (2007). Effects of stimulated storage conditions on the quality of plantain (Musa paradisiacal) fruit. Int. J. Agric. Res 2(12): 1037-1042.
[2] Willett, W., Manson, J and Liu, S (2002). Glycemic index, glycemic load and risk of type 2 diabetes. Am. J. Clin. Nutr. 76 (1) 274S-280S.
[3] Foster G. D., Wyatt, H. R. and Hill, J. O. (2003). A randomized trial of a low carbohydrate diet for obesity. New England. J. Med., 348 (21) 2082-2090.
[4] Eleazu, C. O, Okafor, P. N and Ikpeama, A. I (2010). Total antioxidant capacity, nutritional composition and inhibitory activity of unripe plantain (Musa paradisiaca) on oxidative stress in alloxan induced diabetic rabbits. Pak J Nutr. 9(11): 1052–1057.
[5] Akinssoe, N., Hounhouigan, D. J., Bricas, N., Vernier, P., Mago, C. M and Olorunda, A., (2001). Physical, chemical and sensory evaluation of dried yam (Dioscorea rotundata) tubers, flour and amala of flour derived product. Trop. Sci. 41: 151-155.
[6] Mestres, C., Dorthe, S., Akissoe, N and Hounhouigan, J. D (2004). Prediction of sensorial properties (colour and taste) of amala, a paste from yam chips flour of West Africa, through flour biochemical properties. Foods. Hum. Nutri: 93-99.
[7] Emperatriz, P. O., Ronald, M., Elevina, P. and Mily, S. (2008). Production and characterization of unripe plantain (Musa paradisiaca) flours. Intercienca, 33: 290-296.
[8] Habou, D., Asere, A. A. and Alhassan, A. M. (2003). Comparative study of the drying rate of tomatoes and pepper using forced and natural convection solar dryer. Nig. J. Renew. Energy, 14: 36-40.
[9] Matazu, I. K. and Harous, A. A. (2004). The effect of drying methods on the nutrients and non-nutrients composition of the fruit of Hibiscus esculentus (Okra). Nig. J. Renew. Energy, 11: 9-13.
[10] Mukhtar. F. B., (2009). Effect of storage temperature on post harvest deterioration of banana and plantain (Musa sp.). Int. J. Phys. Applied Sci., 3: 28-38.
[11] Arogba, S. S., Ugwu, F. M and Abu, D. D. (1998). The effects of sun-drying surfaces and packaging materials on the storability of cowpea (Vigna unguiculata) seed. Plant foods for human nutrition 53, 113-120.
[12] Ugwu, F. M., Ekwu. F. C. and Abu J. O (1999). Effect of different sundrying surfaces on the functional properties, cooking and insect infestation of cowpea sees. Bioresource Technology. 69: 89-90.
[13] FAO. (Food and Agriculture Organization) (1995). FAO Production year book. Vol. 43. Rome Italy.
[14] Ukhum, M. E and Ukpebor, I. E (1991). Production of instant plantain flour, sensory evaluation and physic-chemical changes during storage. Food Chem., 42: 287-299.
[15] Onyejegbu, L. A. and Olorunda, A. O (1995). Effects of raw materials processing conditions and packaging on the quality of plantain chips. J. Sci. Food. Agric., 68: 279-283.
[16] Ogazi, P. O. (1996). Plantain: production, processing and utilization. Paman and Associates Publishers, Okigwe, Nigeria. Pp. 305.
[17] Ngalani, J. A. (1986). La conservation des fruits tropicaux: cas de la banana plantain. Etude préliminaires. Fruits, 41(2): 89-92.
[18] Sathe, S. K. Desphande, S. S. and Salunkhe, D. K. (1982). Functional properties of Lupin seed (Lipinus mutabilis) Protein and protein concentrates Journal of food science 47: 491-497.
[19] Leach, H. W., McCowen L. D. and Scoch, T. J. (1959). Structure of starch granule, swelling and solubility patterns of various starches. Cereal Chemistry 36: 534-544.
[20] Akpapunam, M. A. and Markakis, P. (1987). Physiochemical and nutritional aspects of Cowpea flour. Journal of food Science 46: 972-973.
[21] Coffman, C. W. and Garcia, V. V. (1977). Functional properties of flours prepared from Chinese indigenous legume seed. Food Chemistry 61: 429-433.
[22] Sosulski, F. W., Garatt, M. O and Slinkard, A. E (1976). Functional properties of ten legume flours. Int. J. Food Sci. Technol. 9: 66-69.
[23] Oyarekua, M. A (2009). Co-fermentation of Cassava/cowpea/carrot to produce Infant complementary food of improved nutritive Quality. Asian Journal of Clinical Nutrition. 1(3): 120-130.
[24] Olutiola, P. O., Famurewa, O. and Sonntage, A. S. (1991). Heidelberger Verlagsanstatt and Onickerei Gmbtl Heidelberg, Germany pp 94-135.
[25] Kinsella, J. E (1976). Function Properties and amino acid content of a protein isolate from mung-bean flour. Journal of Food Technology 12: 473-484.
[26] Singh, U (2001). Functional properties of grain legume flours. J. Food Sci. Technol. 38: 191-199.
[27] Karuna, D., Kulkarni, D. N. and Ingle, U. M. (1996). Fractionation, solubility and functional properties of cowpea (Vigna unguiculata) proteins as affected by pH and/or salt concentration. J. of Food Chem. 82: 207 – 212.
[28] Omueti, O., Otegbayo B., Jaiyeola O. and Afolabi O (2009). Functional properties of complementary diets developed from Soybean (Glycine max), Groundnut (Arachis hypogea) and Crafish (Macrobrachium spp.). Journal of Environmental, Agricultural and Food Chemistry 8 (8): 563-573.
[29] Akpata, M. I and Akubor, P. I (1999). Chemical composition and selected functional properties of sweet orange (Citrus sinensis) seed flour. Plant Food Hum. Nutr. 54: 353-362.
[30] Adebowale, A. A. Sanni, L. O and Awonorin, S. O (2005). Effect of texture modifiers on the physicochemical and sensory properties of dried fufu. Food. Sci. Technol. Int., 11(5): 373-382.
[31] Maziya-Dixon, B., Dixon, A. G. O and Adebowale, A. A (2004). Targeting different end uses of cassava: Genotypic variations for cyanogenic potentials and pasting properties. A paper presented at ISTRC-AB Symposium. October 31 – November 5, 2004, Whitesands Hotel, Mombassa, Kenya.
[32] Maziya-Dixon, B., Sanni, A. A., Adebowale, A. A., Onabanjo, O. O and Dixon, A. G. O (2005). Effect of variety and drying methods on proximate composition and pasting properties of high quality cassava flour from yellow cassava roots. Proceedings of the African Crop Science Society Conference, 5th – 9th December 2005, Enttebe, Uganda.
[33] Dengate, H. N. (1984). Swelling, pasting and gelling of wheat starch. In: Pomeranz Y. (Ed) Adv. Cereal Sci. Technol. AACC, USA, Pp. 49-82.
[34] Newport Scientific (1998). Applications manual for the Rapid Visco Analyzer using thermocline for windows. Newport scientific Pty Ltd., 112 Apollo street, warriewood NSW 2012, Australia, Pp. 2-26.
[35] Ihekoronye, A. I. and Ngoddy, P. O (1985). Browning reaction in integrated Food Science and Technology for the Tropics. Macmillan Education Ltd. London, pp. 224-229.
[36] Onitilo, M. O., Sanni, L. O., Oyewole, O. B and Maziya-Dixon, B (2007). Physicochemical and functional properties of sour starches from different cassava varieties. Int. Journal of Food Properties, 10: 607–620.
[37] Sandhu, K. S., Singh, N. and Malhi., N. S. (2007). Some properties of corn grains and their flours l’ physicochemical, functional and Chapati-making properties of flours. Food Chem., 101: 938-946.
[38] Anon (1974). Biological specification for food principles and specific applications university of Toronto press. Canada pp 24.
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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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