Academic Research Journal of Agricultural Science and Research
 

Academic Research Journal of Agricultural Science and Research 

Vol. 6(7), pp. 443-452. September, 2018.

ISSN: 2360-7874 

 DOI: 10.14662/ARJASRD2018.073

Full Length Research

Physicochemical properties of Cotton seeds oil and its comparison with released and improved cotton varieties in Ethiopia

Mulate Zerihun¹, Hayelom Berhe²

¹Melekassa Agriculture Research Center, EIAR, P.O. Box 2003, Addis Ababa, Ethiopia.

Corresponding author’s E-mail: mulatezerihun@yahoo.com,  +2519-18-59-73-50

²Werer Agriculture Research Center, EIAR, P.O. Box 2003, Addis Ababa, Ethiopia.

E-mail: berhehayelom18@gmail.com,  +2519-25-74-30-05

Accepted 18 September 2018

Cotton (Gossypium hirsutum L.) is one of the most ancient oil seed crops in the world. It is an ancient cultivated primarily for fiber and thought to have originated from Africa. A study was carried out to evaluate the variation of physiochemical parameters and quality attributes among oils from released and improved of different Ethiopian cotton varieties. Oils were extracted using n-hexane as solvent. Results indicated that contents of seed oil among the tested varieties varied from 12.22 % to 61.18%, moisture 3.40% to 8.00%, protein 13.64% to 21.73%, purity 93.50% to 99.50%, carbohydrate 9.65% to 60.50%, hundred seed weight 7.725 to 13.61%, while ash 3.77% to 5.95%. The physical and chemical characteristics among the tested oils varied as: refractive index (1.4590–1.468), acid value (1.71–12.09%), saponification value (181.03–199.32 mg KOH/g) and specific gravity (0.81–1.14%). Results indicated that a significant variation were shown for most of the physicochemical properties among fourteen (14) cotton verities oils which can be mainly linked to the specific genetic makeup of each variety as well as the agro-climatic conditions of the harvest. Cotton variety of Sile-91 was showed better nutritional status due to the higher quantity of oil parameter like crude fat (oil contents) and cotton variety Carolina qu. was showed better nutritional statues due to low acid value, free fatty acid and high saponification value, refractive index and ester value as compared to other thirty varieties selected.

Keywords: Cotton, oil seed, quality, physiochemical parameters, carbohydrate, protein and free fatty acid.

How to cite this article (APA Style): Zerihun, M., Berhe, H. (2018). Physicochemical properties of Cotton seeds oil and its comparison with released and improved cotton varieties in Ethiopia. Acad. Res. J. Agri. Sci. Res. 6(7): 443-452