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VOL. 7, ISSUE 1 (2023)
Quality evaluation and antimicrobial activities of adzuki bean seed oil (Vigina angularis)
Authors
Jide Alfred Olaseeni, Osanyinlusi Rrmi, Jacob Olabode Alademeyin
Abstract
The crude oil extracted from Adzuki bean oil (Vigna Angularis),
purchased from Owo in Oba market in Owo local government area of Ondo state Nigeria.
The extraction of the oil from the seed was carried out by soxhlet method using
hexane as the extractant. The physicochemical properties of the oil were
determined using gas chromatography (GC) and other standard methods. The
antimicrobial activities were carried out using five species of bacterial. The
results of the investigation is as follows: specific gravity (0.8142±0.11),
refractive index at 250®C (1.462±O0.10), moisture content (0.850±0.12), PH
(4.52±0.01), flash point (121®C±0.50), smoke point (110.®C±0.12), fire point
(125®C±0.20), color (22.00 unit), others were free fatty acid (0.58%±0.02),
acid value (1.18±0.01), peroxide value (12.05±0.05)meg/0.2/KOH, iodine value
(105.00±0.03wij) and saponification value (195.05±0.05 mg/KOH). Gas
chromatography analysis gave the following: fatty acid profiles, myristic
(1.05%) %, palmitic (22.05%), stearic (56.60%), (oleic 78.60%), (linoleic
18.5%), (linolenic 16.58%) and behenic acids of (0.51%). The antimicrobial
activities revealed the activities of the following organisms as against
popular commercial antibiotics Escherichia Coli (15.00±0.04), Proteus
(1.00±0.00), Klebsiella (3.00±0.03), Salmonella (7.00±0.01), and Bacillus
Substill (5.00±0.02). The study shows that the vegetable seed oil is a good
source of edible oil and for food formulation as well as drying oil in
pharmaceutical, paint, soap and perfume industries because of its higher level
of unsaturation in the fatty acid content.
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Pages:50-52
How to cite this article:
Jide Alfred Olaseeni, Osanyinlusi Rrmi, Jacob Olabode Alademeyin "Quality evaluation and antimicrobial activities of adzuki bean seed oil (<i>Vigina angularis)</i>". International Journal of Chemical Science, Vol 7, Issue 1, 2023, Pages 50-52
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