Original scientific paper
CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF WATER-ETHANOL EXTRACTS OF DANDELION (TARAXACUM OFFICINALE)
Samira Dedić
orcid.org/0000-0002-0886-6605
; University of Bihac, Faculty of Biotechnology, Kulina Bana 2, 77000 Bihać, Bosnia and Herzegovina
Aida Džaferović
; University of Bihac, Faculty of Biotechnology, Kulina Bana 2, 77000 Bihać, Bosnia and Herzegovina
Huska Jukić
orcid.org/0000-0001-8196-778X
; University of Bihac, Faculty of Health Studies, Nositelja hrvatskog trolista 4, 77000 Bihać, Bosnia and Herzegovina
Abstract
Dandelion or Taraxacum officinale is a well - known medical plant that is a source of various nutrients and biologically active substances, and its polyphenolic compounds are considered responsible for the high biological activity of dandelion and its antioxidant, anti - inflammatory and atitumor effects. Aques - ethanol extracts were obtained using various maceration extraction techniques at room and boiling temperature, ultrasonic and Soxhlet extraction. In this study, all parts of the plant (roots, leaves, stems, flowers) previously dried at room temperature were analysed. The content of mineral elements of the plant was determined by AAS, antioxidant activity by DPPH (2,2 - diphenyl - 1 - pycryl hydrazyl) and FRAP (Ferric Reducing Antioxidant Power) method, flavonoids (method with AlC13), vitamin C, carotenoids and chlorophyll were determined spectrophotometrically. The content of total phenols was determined by the Folin - Ciocalteu method. The content of phenolic compounds is higher in the outer parts of the plant (flowers and leaves) than in the root. The results of chemical analysis show that all its components have special qualities in terms of chemical composition. The best antioxidant activity was shown by the water - ethanol extract obtained using Soxlet extraction.
Keywords
chemical composition; antioxidant activity; Taraxacum officinale
Hrčak ID:
281051
URI
Publication date:
31.7.2022.
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