Physicochemical analysis of oil extracted from roselle (Hibiscus sabdariffa L.) seeds in Kano metropolis Physicochemical analysis of oil extracted from roselle (Hibiscus sabdariffa L.) seeds in Kano metropolis – Direct Research Journal of Agriculture and Food Science
Original Research Article

Physicochemical analysis of oil extracted from roselle (Hibiscus sabdariffa L.) seeds in Kano metropolis

Abdullahi, I. D.*
Zakiyya, M. Y.
Yepshak, N.B.
Umar, M.
Ben-Musa, A. S.
Jibrin, S. J.
Article Number: DRJAFS18581750
DOI: https://doi.org/10.26765/DRJAFS18581750
ISSN: 2354-4147

Vol. 9, Pp. 297-301, 2021

Copyright © 2021

Author(s) retain the copyright of this article


Abstract

Roselle seeds are a byproduct of roselle processing for juices or other related items. The production of oil from roselle seed serves two purposes: economic and environmental. The current study’s goal is to look into the potential uses of roselle seed oils. Roselle seeds were harvested and prepared for use by decocting, drying, and crushing.  The oil was extracted using a Soxhlet system, and its physicochemical properties were evaluated using standard techniques. The physicochemical characteristics studied yielded the following results.  The physical parameters of the oil were evaluated, and the findings were 19.20.452 percent oil content, 1.290.001 refractive index, and 0.890.009 specific gravity, respectively. Also the chemical properties which are peroxide value, free fatty acids, acid value, saponification value, and iodine value were tested the results were recorded 4.33±0.943 meq/kg, 0.19±0.011 %, 0.39±0.023 mgKOH/g, (60.35±0.616 mgKOH/g, 51.16±0.581 g/100g, respectively. Characteristics of roselle seed oil suggest that it could have important applications either as cooking or industrial.

Keywords Roselle seed, oil, soxhlet, physicochemical, analysis
 Received: August 2, 2021  Accepted: August 30, 2021  Published: September 6, 2021



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