Engineering Advances

Downloads: 29856 Total View: 315740
Frequency: bimonthly ISSN Online: 2768-7961 CODEN: EANDDL

Some Physical and Mechanical Properties of Black Cumin Seeds Preparatory to Primary Processing

Rotimi Moses Davies

Department of Agricultural and Environmental Engineering, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria.

*Corresponding author: Rotimi Moses Davies

Published: June 16,2021


The study was carried out to determine the physical, mechanical and frictional characteristics of black seeds, namely, principal axes, arithmetic mean diameter, geometric mean diameter, surface area, volume, 1000 unit mass, sphericity, aspect ratio, porosity and angle of repose bio-yield force, rupture force, compressive force and strength, modulus of elasticity of black seeds. Results showed that seeds have length, width and thickness values varied from 2.94 to 3.65 mm, 1.31 to 2.11 mm and 0.62 to 1.32 mm respectively. The mean sphericity, aspect area, surface area, volume and 1000 unit mass of black seeds were 55%, 47%, 17.26 mm2, 7.83 mm3 and 3.18 g. Stainless steel surface had the lowest value of static and dynamic coefficient of friction. The positive interaction was observed between density, rupture force, yield force, yield compressive strength and significantly different at (P<0.001). Stainless steel is more appropriate for the construction of hopper and chute of the machine.


[1] Morsi, N. M. (2000). Antimicrobial effect of crude extracts of Nigella sativa on multiple antibiotics-resistant bacteria. ActaMicrobiologica Polonica, 49, 63-74.

[2] Burits, M. and F. Bucar. (2000). Antioxidant activity of Nigellasativa essential oil. Phytotherapy Research, 14, 323-328.

[3] D’Antuono, L. F., A. Moretti, and A. F. S. Lovato. (2002). Seed yield, yield components, oil content and essential oil contentand composition of Nigella ssativa L. And Nigella damascene L. Industrial Crops and Products, 15, 59-69. 

[4] Alenzi, F. Q., El-Bolkiny Yel-S., Salem, M. L. (2010). Protective effects of Nigella sativa oil and thymoquinone against toxicity induced by the anticancer drug cyclophosphamide. Br J Biomed Sci., 67: 20-28.

[5] Hussain, D. A. S and Hussain, M. M. (2016). Nigella sativa (black seed) is an effective herbal remedy for every disease except death—a Prophetic statement which modern scientists confirm unanimously: A review. Advancement in Medicinal Plant Research, 4(2), 27-57.

[6] Khan, M. A., Chen, H., Tania, M., Zhang, D. (2011). Anticancer activities of Nigella sativa (Black Cumin). Afr J Tradit Complement Altern Med., 8(5 Suppl): 226-232.

[7] Gharib-Zahedi, T. Mousavi, T. Moayedi, S.M., Garavand, R., Alizadeh, S. M. (2010). Moisture-dependent engineering properties of black cumin (Nigellasativa L.) seed. Agric Eng Int: CIGR Journal, 1(12), 194-202.

[8] Çetin, M., Yalçin and E. Simsek, E. (2008). Some Physical and Engineering Properties of Black Cumin (Nigella sativa L.) Seed. Asian Journal of Chemistry, 4(20), 3097-3103.

[9] Yimer, E. M., Tuem, K. B., Karim, A., Ur-Rehman, N., and Anwar, F. (2019). Nigella sativa L. (Black Cumin): A Promising Natural Remedyfor Wide Range of Illnesses. Hindawi Evidence-Based Complementary and Alternative Medicine Volume 2019, Article ID 1528635, p. 16.

[10] Takruri, H. R. H. and Dameh, M. A. F. (1998). Study of the nutritional value of black cumin seeds (Nigella sativa L). Journal of the Science of Food and Agriculture, 3(76), 404-410.

[11] Ramadan, M. F. (2007). Nutritional value, functional properties and nutraceutical applications of black cumin (Nigella sativa L.): an overview. International Journal of Food Science and Technology, 10(42), 1208-1218.

[12] Mamun, M. A. and N. Absar. (2018). Major nutritional compositions of black cumin seeds cultivated in Bangladesh and the physic-ochemical characteristics of its oil. International Food Research Journal, 6(25), 2634-2639.

[13] Hala Gali-Muhtasib, N. El-Najjar R., and Schneider-Stock. (2006). The medicinal potential of black seed (Nigella sativa) and its components. Advances in Phytomedicine, 2: 2006, pp. 133-153.

[14] Davies, R. M. and EI-Okene, A. M. I. (2009). Moisture-dependent physical properties of soybean. Int. Agrophysics, 23(3): 299-303.

[15] Davies, R. M. (2009). Some physical properties of groundnut grains. Research Journal of Applied Sciences, Engineering and Technology, 1(2): 10-13.

[16] Galedar, M. N, Jafari, A., Tabatabaeefa, A. (2008). Some physical properties of wild pistachio nut and kernel as a function of moisture content. Journal of Physics and Environmental and Agricultural Sciences, 22: 117-124.

[17] Davies, R. M., Zibokere, D. S. (2011). Effects of moisture content on some physical and mechanical properties of three varieties of cowpea (vigna unguiculata (L) walp). AgricEngInt: CIGR Journal.

[18] Koocheki, A., Razavi, S. M. A., Milani, E., Moghadan, T. M., Abedini, M., Alamatiyan, S., Izadikhah, S. (2007). Physical properties of watermelon seed as a function of moisture content and variety. Int. Agrophysics, 21: 349-359.

[19] Milani, E., Razavi, S. M. A., Koocheki, A., Nikzadeh, V., Vahedi, N., MoeinFord, M., GholamhosseinPour, A. (2007). Moisture dependent physical properties of cucurbit seeds. Int.Agrophysics, 21: 157-168.

[20] Lorestani, A. N., Jaliliantabar, F., Gholami, R. (2012). Physical and mechanical properties of castor seed. Quality Assurance and Safety of Crops & Foods, 4, 29-32.

[21] ASAE. (1998). Moisture measurement of unground grains and seeds (ASAE Standards 352.2). American Society of Agricultural Engineers.

[22] Mohsenin, N. N. (1986). Physical properties of plant and animal material. Gorgon beach science pub., Vol. 1, 483-495. 

[23] Davies. (2018). Some physical and mechanical properties of pear fruits and seeds. Int. Journal of Research Studies in Science, Engineering and Technology, 2(5), 51-57.

[24] Davies, R. M. (2009). Engineering properties of three varieties of melon seeds as potential for development of processing machine. Advance Journal of Food Sciences and Technology, 2(1): 63-66.

[25] Garnayak, D. K., Pradhan, R. C., Nalk, S. N., Bhatnagar, N. (2008). Moisture-dependent physical properties of jatropha seed. Industrial Crops Products, 27: 127-129. 

[26] Jayan, N. P. R., Kuman, V. J. F. (2004). Planter design in relation to the physical properties of seeds.

[27] Davies, R. M., Mohammed, U. S. (2014). Engineering properties of bitter Kola nuts and shell as potentials for development processing machines. International Journal of Scientific Research in Environmental Sciences, 1(11): 337-343.

[28] Tabatabaeefa, A. (2003). Moisture-dependent physical properties of wheat. Int. Agrophysics, 12: 207-211.

How to cite this paper

Some Physical and Mechanical Properties of Black Cumin Seeds Preparatory to Primary Processing

How to cite this paper: Rotimi Moses Davies. (2021). Some Physical and Mechanical Properties of Black Cumin Seeds Preparatory to Primary Processing. Engineering Advances1(1), 21-25.