Res. Agr. Eng., 2017, 63(2):79-85 | DOI: 10.17221/22/2016-RAE

Thermal properties of soursop seeds and kernelsOriginal Paper

Oloyede Christopher Tunji, Akande Fatai Bukola, Oriola Kazeem Olaniyi, Oniya Oluwole Oluwatoyin*
Department of Agricultural Engineering, Faculty of Engineering and Technology, Ladoke Akintola University of Technology, Ogbomoso, Nigeria

The thermal properties of soursop seeds and kernels were determined as a function of moisture content, ranged from 8.0 to 32.5% (d.b.). Three primary thermal properties: specific heat capacity, thermal conductivity and thermal diffusivity were determined using Dual-Needle SH-1 sensors in KD2-PRO thermal analyser. The obtained results shown that specific heat capacity of seeds and kernels increased linearly from 768 to 2,131 J/kg/K and from 1,137 to 1,438 J/kg/K, respectively. Seed thermal conductivity increased linearly from 0.075 to 0.550 W/m/K while it increased polynomially from 0.153 to 0.245 W/m/K for kernel. Thermal diffusivity of both seeds and kernels increased linearly from 0.119 to 0.262 m2/s and 0.120 to 0.256 m2/s, respectively. Analysis of variance results showed that the moisture content has a significant effect on thermal properties (p ≤ 0.05). These values indicated the ability of the material to retain heat which enhances oil recovery and can be used in the design of machine and selection of suitable methods for their handling and processing.

Keywords: specific heat capacity; thermal conductivity; thermal diffusivity; SH-1 sensors; moisture content

Published: June 30, 2017  Show citation

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Oloyede CT, Akande FB, Oriola KO, Oniya OO. Thermal properties of soursop seeds and kernels. Res. Agr. Eng. 2017;63(2):79-85. doi: 10.17221/22/2016-RAE.
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    References

    1. ASABE (1988): ASAE Standard S352.2(DEC 92) - Moisture Measurement - Unground Grain and Seeds. St. Joseph, ASAE.
    2. Ato B., Ahmad A., Francis K., Abubakar K.P. (2012): Some moisture dependent thermal properties of cashew kernel (Anarcadium occidentale L.). Australian Journal of Agricultural Engineering, 3: 65-69.
    3. Aviara N.A., Haque M.A., Ogunjimi L.A.O. (2008): Thermal properties of guna seed. International Agrophysics, 22: 291-297.
    4. Bambgoye A.I., Adejumo O.I. (2010): Thermal properties of roselle seeds. Journal of International Agrophysics, 24: 85-87.
    5. Boelhouwer C. (1983): Trends in chemistry and technology of lipids. Journal of the American Oil Chemists' Society, 60: 457-462. Go to original source...
    6. Calisir S., Marakoglu T., Ogut H., Ozturk O. (2005): Physical properties of rapeseed (Brassica napus oleifera L). Journal of Food Engineering, 69: 61-66. Go to original source...
    7. Decagon Devices (2008-2011): KD2-Pro Thermal Analyzer Manual: 4-72.
    8. Fasakin A.O., Fehintola E.O., Obijole O.A., Oseni O.A (2008): Compositional analyses of the seed of soursop Annona muricata L., as a potential animal feed supplement. Academic Journals of Scientific Research and Essay, 3: 521-523.
    9. Fontana A.J., Varith J., Ikediala J., Reyes J., Wacker B. (1999): Thermal properties of selected foods using a dual-needle heat pulse sensor. In: ASAE Annual International Meeting, July 18-21. Paper No. 996063. St. Joseph, ASAE.
    10. Hojat A., Kaveh M., Jalal K., Seyed S.M., Ali R. (2009): Some physical and mechanical properties of fennel (Foeniculum vulgare). Journal of Agricultural Science, 1: 66-75. Go to original source...
    11. Hosain D., Mohsen A., Abbas R.A. (2012): Measurement of thermal conductivity, specific heat, thermal diffusivity and diffusivity of black sunflower seeds. International Journal of Agriculture and Food Science, 2: 96-99.
    12. Isik E. (2007): Some physical and mechanical properties of round red lentis grains. Applied Engineering in Agriculture, 23: 567-576. Go to original source...
    13. Kara M., Ozturk I., Bastaban S., Kalkan F. (2011): Thermal conductivity of safflower (Carthamus tinctoriusi L.) seeds. Spanish Journal of Agricultural Research, 9: 687-692. Go to original source...
    14. Kimbonguila A., Nzikou J.M., Matos L., Loumouamou B., Ndangui C.B., Pambou-Tobi N.P.G., Abena A.A., Silou Th., Scher J., Desobry S. (2010): Proximate Composition and Physicochemical Properties of the Seed and Oil of Annona muricata grown in Congo-Brazzaville. Research Journal of Environmental and Earth Sciences, 2: 13-18.
    15. Jiříčková M., Pavlík Z., Černý R. (2006): Thermal properties of biological agricultural materials. In: Proceedings from the seminar Thermophysics 2006, October 2006: 68-71.
    16. Murlidhar M., Goswami T.K. (2011): Thermal properties of black pepper and its volatile oil. International Journal of Advanced Bio-technology and Research, 2: 334-344.
    17. Okoro C.K., Osunde Z.D. (2013): Physical Properties of Soursop (Annona muricata L.). International Journal of Engineering Research and Technology, 2: 1-4.
    18. Oladunjoye M.A., Sanuade O.A. (2012): Thermal diffusivity, thermal effusivity and specific heat of soils in Olorunsogo Power Plan, South Western of Nigeria. International Journal of Engineering Research & Technology, 13: 502-521. Go to original source...
    19. Oloyede C.T., Akande F.B., Oniya O.O. (2015): Moisture dependent physical properties of sour-sop (Annona muricata L.) seeds. Agric Eng: CIGR Journal, 17: 185-190.
    20. Onimawo I.A. (2002): proximate composition and selected physicochemical properties of seed, pulp and oil of soursop (Annona muricata L.). Journal of Plant Foods Human Nutrition, 57: 155-171. Go to original source... Go to PubMed...
    21. Oniya O.O., Oloyede C.T., Akande F.B. Adebayo A.O., Onifade T.B. (2016): Some mechanical properties of soursop seed and kernel at varying moisture content under compressive loading. Research Journal of Applied Sciences, Engineering and Technology, 12: 312-319. Go to original source...
    22. Oyenuga V.A. (1978): Nigeria's Food and Feeding-Stuffs: Their Chemistry and Nutritive Value. Ibadan University Press, Ibadan, Nigeria, 61-66.
    23. Sadeghi A. (2012): Thermal conductivity of food pellets. Journal of Agricultural Science Technology, 14: 975-984.
    24. Simoyan K.J., Yiljep Y.D., Oyatoyan O.B., Bawa G.S. (2008): Effects of moisture content on some frictional properties of Lablab purpureus seed. Journal of Agricultural Engineering and Technology, 16: 37-46.
    25. Vijay S.S. (2013): Determination of thermal properties of coriander seeds anditsvolatile oil (Coriandrum sativum). International Journal of Engineering Research and Application, 3: 1767-1773.
    26. Yang W., Sokhansanj S., Tang J. and Winter P. (2002): Determination of thermal conductivity, specific heat and thermal diffusivity of borage seed. Biosystem Engineering, 82: 169-176. Go to original source...

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