Oil extracts from Irvingia gabonensis (Ig) and Irvingia wombolu (Iw) kernels were studied for their physical qualities and antioxidant activity. Both types bear fruit at different times of the year. The effect of testa on antioxidants was also looked into. Total Phenolics (TP), Ferric Reducing Antioxidant Power (FRAP), Total Antioxidant Activity (TAA) by the thiocyanate (-SCN) method, and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) procedures were employed to determine antioxidant activity. Both oil extracts had considerable antioxidant activity, ranging from 61 to 93 percent, regardless of the period of examination. Irvingia spp. had a mean inhibitory concentration of 15.4 g/ml, compared to 4.38 and 1.85 g/ml for reference Quercetin and Vitamin C, respectively. Testa had a statistically significant function in avoiding autoxidation (p0.05). Irvingia wombolu with testa, Iwt (4.86 g/ml) had an IC50 that was comparable to Quercetin. TAA with the –SCN technique was the most effective in distinguishing between samples with and without testa. According to the findings, Irvingia kernel oil extract includes a high amount of phenolic compounds that inhibit lipid autoxidation and is acceptable for usage as a high-quality oil in animal and human diets. It is extremely recommended that undamaged Irvingia kernels be utilised with testa.
Author(S) Details
Omale Jamila Audu
Department of Biochemistry, Kogi State University, Anyigba, Nigeria.
Ojogbane Ele-Ojo
Faculty of Health Sciences, Taraba State University, Jalingo, Nigeria.
Awodi Patience Ilecholubo
Department of Biochemistry, Kogi State University, Anyigba, Nigeria.
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