Total Phenolic, Flavonoid Contents, and Antioxidant Activities of Fruit, Seed, and Bark Extracts of Zanthoxylum armatum DC.
Autor: | Phuyal N; Central Department of Botany, Tribhuvan University, Kirtipur, Kathmandu, Nepal.; Forest Research and Training Centre, Ministry of Forests and Environment, Babarmahal, Kathmandu, Nepal., Jha PK; Central Department of Botany, Tribhuvan University, Kirtipur, Kathmandu, Nepal., Raturi PP; Ashok Medicinal and Aromatic Plants Center, Dabur Nepal Pvt. Ltd., Janagal, Kavre, Kathmandu, Nepal., Rajbhandary S; Central Department of Botany, Tribhuvan University, Kirtipur, Kathmandu, Nepal. |
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Jazyk: | angličtina |
Zdroj: | TheScientificWorldJournal [ScientificWorldJournal] 2020 Mar 16; Vol. 2020, pp. 8780704. Date of Electronic Publication: 2020 Mar 16 (Print Publication: 2020). |
DOI: | 10.1155/2020/8780704 |
Abstrakt: | Natural antioxidants present in several medicinal plants are responsible for inhibiting the harmful effects of oxidative stress. These plants contain polyphenols and flavonoids that act as free radical scavengers and reduce oxidative stress and may be an alternative remedy to cure various harmful human diseases. This study aims to quantify the total phenolic and flavonoid contents (TPC and TFC) and antioxidant properties of methanol extracts of fruits, seeds, and bark of an important medicinal and aromatic plant, Zanthoxylum armatum collected from wild and cultivated populations in Nepal. TPC was determined by Folin-Ciocalteu colorimetric method using gallic acid as standard, and various concentrations of the extract solutions were measured at 760 nm. TFC was calculated by aluminum chloride colorimetric assay. Quercetin was used as standard, and the absorbance was measured at 510 nm. The antioxidant potential of the different extracts was estimated by DPPH free radical scavenging assay, and the absorbance was measured at 517 nm. The highest TPC value was 226.3 ± 1.14 mg GAE/g in wild fruits, and the lowest was 137.72 ± 4.21 mg GAE/g in cultivated seeds. Similarly, the highest TFC value was 135.17 ± 2.02 mg QE/g in cultivated fruits, and the lowest was 76.58 ± 4.18 mg QE/g in cultivated seeds. The extracts showed variable antioxidant properties. The fruits exhibited excellent antioxidant properties with IC Competing Interests: The authors declare that they have no conflicts of interest. (Copyright © 2020 Nirmala Phuyal et al.) |
Databáze: | MEDLINE |
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