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
Recommended Citation
Ejupi, Valon; Qazimi, Bujar; Ukaj, Shkëlzim; Jakupi, Arianit; Temaj, Gazmend; Hoti, Agon; Ademi, Erblina; and Dragusha, Shpend, "Total content of phenolics and flavonoids in selected medicinal plants from Kosovo" (2021). UBT International Conference. 160.
https://knowledgecenter.ubt-uni.net/conference/2021UBTIC/all-events/160
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.