<abstract xmlns="http://www.w3.org/1999/xhtml"><bold>Objective</bold>: The aim of the study was to determine the content of polyphenols and flavonoids from sixteen selected medicinal plants from the spontaneous Romanian flora and fifteen tinctures obtained with propylene glycol.<bold>Methods</bold>: The polyphenols were determined by the Folin-Ciocalteu method while the flavonoids by using a colorimetric method from the 10th edition of the Romanian Pharmacopoeia. The antioxidant activities of the most common nine medicinal plants and fifteen tinctures were determined by DPPH and ABTS methods.<bold>Results</bold>: The results highlighted that the phenolic compounds and flavonoids have contributed to their antioxidant activities and the medicinal plants and tinctures included in the study are rich sources of natural antioxidants.<bold>Conclusions</bold>: There are a wide variety of extraction methods for the determination of phenolics and flavonoids. The study confirms a correlation between phenolic and flavonoid contents obtained by using the DPPH and ABTS tests.</abstract>

Objective: The aim of the study was to determine the content of polyphenols and flavonoids from sixteen selected medicinal plants from the spontaneous Romanian flora and fifteen tinctures obtained with propylene glycol.Methods: The polyphenols were determined by the Folin-Ciocalteu method while the flavonoids by using a colorimetric method from the 10th edition of the Romanian Pharmacopoeia. The antioxidant activities of the most common nine medicinal plants and fifteen tinctures were determined by DPPH and ABTS methods.Results: The results highlighted that the phenolic compounds and flavonoids have contributed to their antioxidant activities and the medicinal plants and tinctures included in the study are rich sources of natural antioxidants.Conclusions: There are a wide variety of extraction methods for the determination of phenolics and flavonoids. The study confirms a correlation between phenolic and flavonoid contents obtained by using the DPPH and ABTS tests.

Phenolic Content from Medicinal Plants and their Products Used in Veterinary Medicine

University of Medicine and Pharmacy of Tîrgu Mures

Faculty of Pharmacy, Department of Pharmaceutical Chemistry

Acta Marisiensis - Seria Medica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Objective: The aim of the study was to determine the content of polyphenols and flavonoids from sixteen selected medicinal plants from the spontaneous Romanian...

Phenolic Content from Medicinal Plants and their Products Used in Veterinary Medicine

Published Online: Jul 07, 2018

Page range: 77 - 82

Received: Mar 02, 2018

Accepted: Jun 18, 2018

DOI: https://doi.org/10.2478/amma-2018-0013

Keywords
medicinal plant, tinctures, polyphenols, flavonoids, antioxidant activities

© 2018 Erzsebet Varga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Phenolic Content from Medicinal Plants and their Products Used in Veterinary Medicine

Published Online: Jul 07, 2018

Page range: 77 - 82

Received: Mar 02, 2018

Accepted: Jun 18, 2018

DOI: https://doi.org/10.2478/amma-2018-0013

Keywordsmedicinal plant, tinctures, polyphenols, flavonoids, antioxidant activities

© 2018 Erzsebet Varga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
medicinal plant, tinctures, polyphenols, flavonoids, antioxidant activities