Development of an Adhesive from Prosopis africana Seed Endosperm (Okpeyi)
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Development of an Adhesive from Prosopis africana Seed Endosperm (Okpeyi)

Authors: Nwangwu Florence Chinyere, Ene Rosemary Ndidiamaka

Abstract:

This research work is an experimental study, through development of an adhesive from Prosopis africana endosperm. The prosopis seed for this work were obtained from Enugu State in the South East part of Nigeria. The seeds were prepared by separating the endosperm from the seed coat and cotyledon. Three methods were used to separate them, which are acidic method, roasting method and boiling method. 20g of seed were treated with different concentrations (25, 40, 55, 70, and 85% w/w) at 100°C and constant time (30 minutes), under continuous stirring with magnetic stirrer. Also 20g of seed were treated with sulphuric acid of concentrations 40% w/w at 100°C with different time (10, 15, 20, 25, 30 minutes), under continuous stirring with magnetic stirrer. Finally, 20g of seed were treated with sulphuric acid of concentrations 40% w/w at different temperature (20°C, 40°C, 60°C, 80°C, and 100°C) with constant time (30 minutes), under continuous stirring with magnetic stirrer. The whole endosperm extracted was adhesive. The physical properties of the adhesive were determined (appearance, odour, taste, solubility, pH, size, and binding strength). The percentage of the adhesive yield makes the commercialization of the seed in Nigeria possible and profitable. The very high viscosity attained at low concentrations makes prosopis adhesive an excellent thickener in the food industry.

Keywords: Endosperm, adhesive, ethanol, Prosopis africana seed.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1110746

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References:


[1] F. U. Burkart, B. Y. Kitika and L. Y. Rushan, Studies on functional properties and IT corporation of buckwheat flour for biscuit making. Int. Food res. J, 1976, 17: 1067-1076.
[2] N. M. Pasiecnik, P. Felker, P. J. C. Harris, L. N. Harsh, G. Cruz, J. C. Tewari, K. Cadoret and L. J. Maldondo, The prosopis juliflora-prosopis pallida complex: A monograph. HDRA, Coventry UK, pp. 85, 2001.
[3] H. Vautier, and M. Scancande, Prosopis Africana (Guill and Perr.) Taub. In: Schmidt, L. (Ed.), Seed leaflet No. 132, Millenium seed bank project, 2007. Retrieved (www.kew.org/msbp.) (Accessed January 14, 2012).
[4] O. K. Achi, Microorganisms associated with natural fermentation of prosopis Africana seeds for production of okpeyi. Plant foods Hum. Nutr., 1992, 42 (4): 297 – 304.
[5] F. J. C. Odibo, B. A. Ugwu and O. C. Ekeocha, Microorganisms associated with the fermentation of prosopis seeds for “ogiri-okpei” production. J. Food Sc; 1992, Tech., 29: 306 – 307.
[6] M. U. Adikwe, S. T. Ezeabasili, C. O. Esimone, Evaluation of the physical, chemical properties of a new polysacchn de gum from prosopis Africana. Bollentino Chimico Farmaceution, pp. 40 – 45, 2001.
[7] J. O. Achi, N. O. Okolo, Physicochemical and functional properties of prospopis powder processed to reduce flavours. J. Food Science; 2004, 44: 1245 – 1250.
[8] I. Melike, J. Turan, Probability and statistics for engineers. 3rd Edn. Prentice Hall, New Delhi, 2004.