[1] J. O. Olaoye, T. Adekanye, Properties influencing cracking and separation of palm nuts in a mechanical cracker cum separator. Croat. J. Food Sci. Technol., 10(1), 2018: 42-50. https://doi.org/10.17508/CJFST.2018.10. 1.07
[2] K.C. Umani, O.M. Olatunji, I.E. Ekop, G.E. Akpan, Experimental investigation of the effect of rotor speed of a horizontal shaft centrifugal palm nut cracker on optimum whole kernel production and shell particle size. Scientific African 7, 2020: e00238. https://doi.org/10.1016/j.sciaf.2019.e00238
[3] S.B. Udo, A.F. Adisa, S.O. Ismaila, S.B. Adejuyigbe, Performance evaluation of a palm kernel nut cracking machine, J. Nat. Sci. Eng. Technol., 14(1), 2015: 111-116.
[4] F.A. Oluwole, M.B. Oumarou, G.M. Ngala, Dynamics of centrifugal impact nut cracker, Int. J. Res. Stud. Sci. Eng. Technol., 3(1), 2016, 15-21.
[5] O. Adewale, O. Koya, A rotary separator for the dry mixture of palm kernel and shell. Innov. Systems Design Engin., 5 (7), 2014: 32-43.
[6] J.J. Olie, T.D. Tjeng, Kernel recovery in the extraction of palm oil. The Netherlands Stork, Amsterdam, Amstelveen, 1974, pp.3-762.
[7] C.O. Akubuo, B.E. Eje, Palm kernel and shell separator. Biosystems Engineering, 81(2), 2002: 193-199. https://doi.org/10.1006/bioe.2001.0029
[8] FAO, Small scale palm oil processing in Africa. Food and Agricultural Organisation. Agricultural Services Bulletin, 148, 2005, 18-24.
[9] O.A. Koya, M.O. Faborode, Separation theory for palm kernel and shell mixture on a spinning disc. Biosystems Engineering, 95(3), 2006: 405-412. https://doi.org/10.1016/j.biosystemseng.2006.07.005
[10] M.H. Rohaya, A.B. Nasrin, Y.M. Chao, A.N. Ma, N. Ravi, A Commercial Scale Implementation of Rolek™ Palm Nut Cracker Techno-Economic Viability Study for Production of Shell-Free Kernel. Journal of Oil Palm Research, Vol. Special Issue, 2006: 153-167.
[11] J.Y. Amoah, M. Aggey, S. Annumu, Crackedmixture sieving rates and efficiencies in smallscale palm nut processing in Ghana. Ghana Journal of Science, 47, 2007: 69-81. http://dx.doi.org/10.4314/gjs.v47i1.15926
[12] A. A. Aderinlewo, A. A. Agboola, O. J. Adeosun, E. S. A. Ajisegiri, A. F. Adisa. Investigation of Separation of Palm Kernel and Shell on an Inclined Plane Separator. Acta Technica Corviniensis – Bulletin of Engineering, XI(2), 2018:135-137.
[13] K. Poku, Small-Scale Palm Oil Processing in Africa, FAO Agricultural Services Bulletin. Publishing Management Service – Information Division, FAO, Rome, 2002, pp.56.
[14] A.T. Olasumboye, O.A. Koya, A rotary separator for the dry mixture of palm kernel and shell. Innovative Systems Design and Engineering, 5(7), 2014: 32-41.
[15] C.W.S. Hartley, The Oil Palm. Longman Publishers, London, 1977, 432-443.
[16] G.A. Badmus, Design of vertical shaft centrifugal palm nut cracker. Presented to the Nigerian Society of Agriculture. University of Agriculture, Makurdi, Nigeria, 1990, pp.24-48.
[17] O.A. Koya, M.O. Faborode, Mathematical modelling of palm nut cracking based on hertz’s theory. Biosystems Engineering, 91(4), 2005: 471-478. http://dx.doi.org/10.1016/j.biosystemseng.2005.05.011
[18] R. F. Steidel, Jr. Mechanics of Solids, in: Marks’ Standard Handbook for Mechanical Engineers, Avallone, E.A. and Baumeister III. T. (Eds.), 10^th Edition. McGraw-Hill, New York, 1996, pp. 3-9.
[19] O.A. Koya, A. Idowu, M.O. Faborode, Physical properties of palm kernel and shell relevant in nut cracking and product separation. Journal of Agricultural Engineering and Technology, 12, 2004: 27-39.
[20] O.A. Koya, Studies of the mechanics of cracking and centrifugal separation of palm kernel and shell mixture. Unpublished Ph.D Thesis. Obafemi Awolowo University, Ile – Ife, Nigeria, 2004.
[21] E.I. Alade, Performance Modelling of an Integrated Palm-Nut Cracker and Kernel-Shell Separator. Unpublished Ph.D Thesis. Department of Mechanical Engineering, Obafemi Awolowo University, Ile – Ife, Nigeria, 2017.
[22] B.J. Hamrock, B.O. Jacobson, S.R. Schmid, Fundamentals of Machine Elements. McGrawHill Company, 1999, pp.257-272.