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Re-Evaluation of Bovine Fiber Biomass as Exploitable Keratinous Bio-Resource for Biomedical and Industrial Applications

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Journal of Minerals and Materials Characterization and Engineering 2017年第1期5卷 1-17页

作者： Isiaka Oluwole Oladele Jimmy Lolu Olajide oluyemi ojo daramola Kofi Bismarck Siaw Department of Metallurgical and Materials Engineering Federal University of Technology Akure Nigeria African Materials Science and Engineering Network (AMSEN) A Carnegie-IAS (RISE) Network (FUTA Node) Akure Nigeria Department of Mechanical Engineering Elizade University Ilara-Mokin Nigeria Division of Computational Materials Science and Prototype Engineering Development Quantum Simutech Enterprise Ilorin Nigeria

In claim of developing ecologically-friendly and low cost polymeric materials, some polymer scientists and engineers have focused on improving the properties of polymer composites with natural fibers. One typical example of these natural fibers currently used as reinforcements in low load-bearing polymer composites is bovine fiber which is traditionally a waste from slaughterhouse. However, nature has designed natural fibers with anisotropic properties which may not augur well for the development of polymer composites with guaranteed field-proven reliability. Nonetheless, unlike vegetal fibers, most animal fibers can be alternatively exploited for keratinous applications. In the present study, the tensile properties, crude protein contents and variations in elemental distribution of hair fibers obtained from three breeds of bovine found in Nigeria were investigated. The hair fibers were characterized by ultimate testing machine, proximate analysis and scanning electron microscopy with energy dispersive X-ray spectroscopy. Superlative Young’s modulus and tensile strength among the fibers were found to be 0.98989 GPa and 0.56158 MPa, respectively. The determined crude protein contents of the fibers ranged between 35% and 40%. Also, single hair fibers from each bovine breed showed significant variations in elemental distribution along their longitudinal sections which translates to anisotropic chemical and mechanical properties. However, the mean spectral values of the principal elements that constitute amino acids in the fibers are in the same range with that of human hair fibers with a successful record of keratinous applications.

关键词： Biological Materials Keratin Sources Fiber Chemistry Natural Fibers Ecological Welfare

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