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Abstract Title:

Evaluation of the Phenolic Content, Antioxidant and Antimicrobial Activities of Oil and Non-Oil Extracts of(L.) Osbeck Seeds.

Abstract Source:

Prev Nutr Food Sci. 2020 Sep 30 ;25(3):280-285. PMID: 33083377

Abstract Author(s):

Ehigbai I Oikeh, Merit Ayevbuomwan, Francis Irabor, Aiemere O Oikeh, Faith E Oviasogie, Ehimwenma S Omoregie

Article Affiliation:

Ehigbai I Oikeh

Abstract:

The seeds of(L.) Osbeck (sweet orange) are waste products usually discarded. They may however contain phytochemicals that have potent bioactivities. In this study, the phenolic content, and antioxidant and antimicrobial activities of oil and non-oil (solid) extracts ofseeds were evaluated using standard protocols. The seed oil contained significantly (>0.05) higher contents of total phenol and total flavonoid when compared to the solid extract. However, the non-oil extract contained significantly (<0.05) higher tannin contents than the seed oil. Ferric reducing antioxidant potential was not significantly different between both extracts. The antimicrobial activities of both extracts revealed that the seed oil possesses better antibacterial activities compared to the non-oil extract. The antifungal test revealed that the seed oil significantly inhibited the growth of(20 mm zone of inhibition at a concentration of 200μg/mL), however, it did not inhibit the growth ofandsp. The minimum inhibitory concentration values against the bacterial and fungal strains were similar for both extracts in the range of 50∼100 μg/mL. Minimum bactericidal concentration and minimum fungicidal concentration values ranged from 100∼200 μg/mL for both extracts. The results in this study indicate thatseed oil and non-oil extracts possess antioxidant, and antibacterial and antifungal properties that may be differentially exploited in the development of antimicrobial agents.

Study Type : In Vitro Study

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