Assessment of antioxidant capacities and phenolic contents of nigerian cultivars of onions (Allium cepa L) and garlic (Allium sativum L) - PubMed (original) (raw)

Affiliations

PMID: 27393431

Assessment of antioxidant capacities and phenolic contents of nigerian cultivars of onions (Allium cepa L) and garlic (Allium sativum L)

Ukoha Pius Onyeoziri et al. Pak J Pharm Sci. 2016 Jul.

Abstract

This report assessed and compared the antioxidant potentials, quantities of ascorbic acid and phenolic compounds in methanolic extract of varieties of onions and garlic cultivars in Nigeria. The pH and total acidity of the extracts were equally determined. Antioxidancy of the cultivars were analysed using the in vitro assay techniques with 2,2-diphenyl-1-picryl Hydrazyl (DPPH) free radical scavenging and ferric reducing capacity. Ascorbic acid phenolic content were determined by volumetric and Folin-Ciocalteu's method respectively. The pH and total acidity were respectively 5.65 and 0.150mmol/L (red onion), 5.69 and 0.123mmol/L (white onion) and 6.94 and 0.105mmol/L (garlic). Red onion had the highest value of total phenols, ascorbic acid and free radical scavenging activity of 14.25±0.35mg GAE/ml, 229.098mg/100g, 66.44% respectively. In DPPH assay, red and white onion showed higher tendency to inhibit auto-oxidation when compared to garlic. The ferric reducing ability was greatest in garlic and least in white onions. These data indicate that with respect to antioxidant activity, red onion variety has highest health promoting potential among others.

PubMed Disclaimer

Cited by

Mode of action and determination of antioxidant activity in the dietary sources: An overview.
Siddeeg A, AlKehayez NM, Abu-Hiamed HA, Al-Sanea EA, Al-Farga AM. Siddeeg A, et al. Saudi J Biol Sci. 2021 Mar;28(3):1633-1644. doi: 10.1016/j.sjbs.2020.11.064. Epub 2020 Nov 26. Saudi J Biol Sci. 2021. PMID: 33732049 Free PMC article. Review.
Phytochemistry and Comprehensive Chemical Profiling Study of Flavonoids and Phenolic Acids in the Aerial Parts of Allium Mongolicum Regel and Their Intestinal Motility Evaluation.
Dong Y, Ruan J, Ding Z, Zhao W, Hao M, Zhang Y, Jiang H, Zhang Y, Wang T. Dong Y, et al. Molecules. 2020 Jan 29;25(3):577. doi: 10.3390/molecules25030577. Molecules. 2020. PMID: 32013151 Free PMC article.
Antioxidant, Antimicrobial and Antiviral Properties of Herbal Materials.
Parham S, Kharazi AZ, Bakhsheshi-Rad HR, Nur H, Ismail AF, Sharif S, RamaKrishna S, Berto F. Parham S, et al. Antioxidants (Basel). 2020 Dec 21;9(12):1309. doi: 10.3390/antiox9121309. Antioxidants (Basel). 2020. PMID: 33371338 Free PMC article. Review.
Administration of Allium cepa L. bulb attenuates stress-produced anxiety and depression and improves memory in male mice.
Samad N, Saleem A. Samad N, et al. Metab Brain Dis. 2018 Feb;33(1):271-281. doi: 10.1007/s11011-017-0159-1. Epub 2017 Nov 25. Metab Brain Dis. 2018. PMID: 29178012
Leaves of Allium cepa and Xylopia aethiopica fruits as potent sources of natural antioxidant for stabilization of viscera FISH oil during accelerated storage.
Tenyang N, Haman BZ, Tawai AJ, Tabanty ZG, Douka G, Ponka R, Womeni HM. Tenyang N, et al. Heliyon. 2024 May 14;10(10):e31225. doi: 10.1016/j.heliyon.2024.e31225. eCollection 2024 May 30. Heliyon. 2024. PMID: 38799740 Free PMC article.

MeSH terms

Substances

LinkOut - more resources

Medical
- MedlinePlus Health Information

Assessment of antioxidant capacities and phenolic contents of nigerian cultivars of onions (Allium cepa L) and garlic (Allium sativum L) - PubMed (original) (raw)