Engineering Properties of Monodora Tenuifolia Seeds as Influenced by Moisture Content

Authors

  • B.S. Ogunsina Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.
  • S.O. Olaoni Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.
  • A.O. Babarinde Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.
  • I. Kareem Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.
  • A Salami Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.

Keywords:

Monodora tenuifolia seed, Moisture content, Engineering properties

Abstract

Some engineering properties of Monodora tenuifolia seeds were investigated as a function of moisture content. Within the moisture range considered (10.75–16.23% w.b), the major, intermediate and minor diameters of M. tenuifolia seeds were in the range of 14.57–14.65 mm, 9.93–10.17 mm and 7.43–7.90 mm, respectively. The geometric mean diameter, unit weight, volume, sphericity and terminal velocity were in the range of 10.21–10.53 mm, 0.43–0.48 g, 560.60–615.12 mm3, 0.70–0.72 and 10.6–12.87 m/s, respectively. Porosity, bulk and true density were in the range of 0.36–0.42, 0.49–0.52 g/cm3 and 0.82–0.85 g/cm3, respectively. The coefficient of static friction varied from 0.33 to 0.43 over four different structural surfaces and the angle of repose of the seed were between 26.65° and 31.37°. Specific heat values were in the range of 12.29–16.07 J/gK, 4.86–5.95 J/gK, and 3.34–4.14 J/gK, for the seeds and 10.43–16.28 J/gK, 4.85–5.66 J/gK, and 3.72–4.37 J/gK, for the kernels at temperatures 40, 60 and 80°C respectively. As moisture content increases, the rupture force, rupture energy and deformation of M. tenuifolia seed varied from 47.36–68.40 N, 0.03–0.06 J and 1.01–1.64 mm, during vertical loading and 326.80–469.44 N, 1.69–2.29 mm and 0.30–0.47 J, during horizontal loading respectively. The effect of moisture content on the properties considered was significant (p<0.05) and the regression models adequately expressed the relationships existing between the properties of M. tenuifolia seeds and moisture content.

Author Biographies

B.S. Ogunsina, Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.

Department of Agricultural and Environmental Engineering, 
Obafemi Awolowo University,
Ile Ife, Nigeria.

S.O. Olaoni, Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.

Department of Agricultural and Environmental Engineering, 
Obafemi Awolowo University,
Ile Ife, Nigeria.

A.O. Babarinde, Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.

Department of Agricultural and Environmental Engineering, 
Obafemi Awolowo University,
Ile Ife, Nigeria.

I. Kareem, Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.

Department of Agricultural and Environmental Engineering, 
Obafemi Awolowo University,
Ile Ife, Nigeria.

A Salami, Department of Agricultural and Environmental Engineering, Obafemi Awolowo University, Ile Ife, Nigeria.

Department of Agricultural and Environmental Engineering, 
Obafemi Awolowo University,
Ile Ife, Nigeria.

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Published

2016-05-01

How to Cite

Ogunsina, B., Olaoni, S. ., Babarinde, A., Kareem, I., & Salami, A. (2016). Engineering Properties of Monodora Tenuifolia Seeds as Influenced by Moisture Content. Ife Journal of Technology, 24(1), 52–60. Retrieved from https://ijt.ng/index.php/ijt/article/view/25