Event Title

Total content of phenolics and flavonoids in selected medicinal plants from Kosovo

Session

Pharmaceutical and Natural Sciences

Description

The objective of this study was to determine the total content of phenolics and flavonoids in water and methanolic extracts in selected medicinal plants such as Betula pendula, Betula pubescens, Trifolium pratense, Verbascum thapsus, Equisetum arvense and Sambucus nigra, collected in different localities in Kosovo. The total phenolic content (TPC) was estimated spectrophotometrically using Folin Ciocalteu method and was expressed as mg of gallic acid equivalents/g dry weight of sample (mgGAE/gDW). Total flavonoid content (TFC) was measured by aluminium chloride colorimetric assay and was expressed as mg of catechin equivalents/g dry weight of sample (mgCE/gDW). The TPC ranged from 5.26±0.05 (Equisetum arvense) to 33.14±0.13 mgGAE/gDW (Sambucus nigra) in water extract and 16.85±0.27 (Equisetum arvense) to 38.95±0.15 mgGAE/gDW (Betula pendula) in methanolic extract. The TFC ranged from 0.09±0.01 (Verbascum thapsus) to 1.57±0.01 mgCE/gDW (Trifolium pratense) in water extract and from 0.25±0.02 (Verbasucm tapsus) to 1.36±0.02 mgCE/gDW (Trifolium pratense) in methanolic extract. In Equisetum arvense herba was observed the largest difference of TPC and TFC between the water extract (8.26±0.05 mg GAE/g and 0.25±0.01 mg CE/g) and methanolic extract (16.85±0.27 mg GAE/mg and 1.15±0.08 mg CE/g), respectively.

Keywords:

phenolics, flavonoids, medicinal plants, methanolic extract, water extract

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-550-47-5

First Page

1

Location

UBT Kampus, Lipjan

Start Date

30-10-2021 12:00 AM

End Date

30-10-2021 12:00 AM

DOI

10.33107/ubt-ic.2021.93

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Oct 30th, 12:00 AM Oct 30th, 12:00 AM

Total content of phenolics and flavonoids in selected medicinal plants from Kosovo

UBT Kampus, Lipjan

The objective of this study was to determine the total content of phenolics and flavonoids in water and methanolic extracts in selected medicinal plants such as Betula pendula, Betula pubescens, Trifolium pratense, Verbascum thapsus, Equisetum arvense and Sambucus nigra, collected in different localities in Kosovo. The total phenolic content (TPC) was estimated spectrophotometrically using Folin Ciocalteu method and was expressed as mg of gallic acid equivalents/g dry weight of sample (mgGAE/gDW). Total flavonoid content (TFC) was measured by aluminium chloride colorimetric assay and was expressed as mg of catechin equivalents/g dry weight of sample (mgCE/gDW). The TPC ranged from 5.26±0.05 (Equisetum arvense) to 33.14±0.13 mgGAE/gDW (Sambucus nigra) in water extract and 16.85±0.27 (Equisetum arvense) to 38.95±0.15 mgGAE/gDW (Betula pendula) in methanolic extract. The TFC ranged from 0.09±0.01 (Verbascum thapsus) to 1.57±0.01 mgCE/gDW (Trifolium pratense) in water extract and from 0.25±0.02 (Verbasucm tapsus) to 1.36±0.02 mgCE/gDW (Trifolium pratense) in methanolic extract. In Equisetum arvense herba was observed the largest difference of TPC and TFC between the water extract (8.26±0.05 mg GAE/g and 0.25±0.01 mg CE/g) and methanolic extract (16.85±0.27 mg GAE/mg and 1.15±0.08 mg CE/g), respectively.