Polyphenol Content and in Vitro Antioxidant Activity of Aqueous-Ethanol Extracts of Pterocarpus soyauxii and Pterocarpus santalinoides

Engwa, G.A. and Ibe, Ifunanya Maryann and Akaniro-Ejim, Emmanuela Nneoma (2018) Polyphenol Content and in Vitro Antioxidant Activity of Aqueous-Ethanol Extracts of Pterocarpus soyauxii and Pterocarpus santalinoides. Global Journal of Medical Research: B Pharma, Drug Discovery, Toxicology and Medicine, 18 (2). ISSN 2249-4618

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Abstract

Recently, medicinal plants are gaining considerable attention for their therapeutic antioxidant activities. Though many studies have investigated the pharmacological and medicinal activities of Pterocarpus soyauxii and Pterocarpus santalinoides, there is limited knowledge of their antioxidant potential. Hence, this study aimed to assess the polyphenol content and investigate the in vitro antioxidant activity of these plants. Aqueous-ethanol extracts of the plants’ leaves were obtained by maceration. The total flavonoid content (TFdC) and total flavonol content (TFlC) of the leaf extracts were determined by standard methods, while ferric reducing power and hydrogen peroxide scavenging assays were used to assess their in vitro antioxidant potentials. The mean TFdC of P. santalinoides (1083.33 ± 35.12 mg/g) was higher than that of P. soyauxii (730 ± 40 mg/g), while the mean TFlC was higher in P. soyauxii (390 ± 60.83 mg/g) than in P. santalinoides (260 ± 45.83 mg/g). The reducing potential of extracts of P. santalinoides was significantly higher (p < 0.05) than that of P. soyauxii, as well as the standard compound, at all concentrations tested.

Item Type:	Article
Subjects:	L Education > L Education (General) Q Science > Q Science (General)
Divisions:	Faculty of Natural and Applied Sciences
Depositing User:	miss ifeoma agbo
Date Deposited:	24 Apr 2019 09:05
Last Modified:	24 Apr 2019 09:05
URI:	http://eprints.gouni.edu.ng/id/eprint/1204

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