Antioxidant activities and polyphenolic contents of three selected micromeria species from croatia

Sanda Vladimir-Kneževic, Biljana Blažekovic, Maja Bival Štefan, Antun Alegro, T. Kőszegi, József Petrik

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

Antioxidant activities of three selected Micromeria species growing in Croatia (M. croatica, M. juliana and M. thymifolia) were evaluated using five different antioxidant assays, in comparison with plant polyphenolic constituents and reference antioxidants. All studied ethanolic extracts exhibited considerable activity to scavenge DPPH and hydroxyl free radicals, reducing power, iron chelating ability and total antioxidant capacity in the order: M. croatica > M. juliana > M. thymifolia. Total polyphenol (9.69-13.66%), phenolic acid (5.26-6.84%), flavonoid (0.01-0.09%) and tannin (3.07-6.48%) contents in dried plant samples were determined spectrophotometrically. A strong positive correlation between antioxidant activities and contents of phenolic acids and tannins was found, indicating their responsibility for effectiveness of tested plants. Our findings established Micromeria species as a rich source of antioxidant polyphenols, especially the endemic M. croatica.

Original languageEnglish
Pages (from-to)1454-1470
Number of pages17
JournalMolecules
Volume16
Issue number2
DOIs
Publication statusPublished - Feb 2011

Fingerprint

Croatia
Lamiaceae
antioxidants
Antioxidants
Tannins
Polyphenols
acids
hydroxyl radicals
Chelation
Flavonoids
Hydroxyl Radical
free radicals
Free Radicals
Assays
Iron
iron

Keywords

  • Antioxidant activity
  • Micromeria croatica
  • Micromeria juliana
  • Micromeria thymifolia
  • Polyphenols
  • Rosmarinic acid

ASJC Scopus subject areas

  • Organic Chemistry

Cite this

Vladimir-Kneževic, S., Blažekovic, B., Štefan, M. B., Alegro, A., Kőszegi, T., & Petrik, J. (2011). Antioxidant activities and polyphenolic contents of three selected micromeria species from croatia. Molecules, 16(2), 1454-1470. https://doi.org/10.3390/molecules16021454

Antioxidant activities and polyphenolic contents of three selected micromeria species from croatia. / Vladimir-Kneževic, Sanda; Blažekovic, Biljana; Štefan, Maja Bival; Alegro, Antun; Kőszegi, T.; Petrik, József.

In: Molecules, Vol. 16, No. 2, 02.2011, p. 1454-1470.

Research output: Contribution to journalArticle

Vladimir-Kneževic, S, Blažekovic, B, Štefan, MB, Alegro, A, Kőszegi, T & Petrik, J 2011, 'Antioxidant activities and polyphenolic contents of three selected micromeria species from croatia', Molecules, vol. 16, no. 2, pp. 1454-1470. https://doi.org/10.3390/molecules16021454
Vladimir-Kneževic, Sanda ; Blažekovic, Biljana ; Štefan, Maja Bival ; Alegro, Antun ; Kőszegi, T. ; Petrik, József. / Antioxidant activities and polyphenolic contents of three selected micromeria species from croatia. In: Molecules. 2011 ; Vol. 16, No. 2. pp. 1454-1470.
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