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Antiradical activity of burdock roots extracts

 

 

 

Key-words:

burdock root, antioxidants, antiradical activity, efficiency of extraction process

Summary

 

In the present work we study the antiradical acti­vity of extracts obtained from burdock roots. We are looking for effective extractant unable for preparation of extract with high polyphenols content of potential use as a cosmetic ingredient. The total content of the phenolic compounds present in the extracts was determined by means of standard spec­tro­photometric method using Folin–Cio­cal­teu reagent fol­lowing the procedure described by Singleton and Rossi using gallic acid as the refe­rence compound. We have determined the content of flavonoids by means of the method proposed by Karadeniz et al. with (-)epi­ca­techin as the reference compound.

We have experimentally found that the aqueous-ethanolic extracts obtained from burdock rootscontain a significant amount of phenols including flavonoids. We can state that the burdock rootscan be regarded as a valuable source of antiradical spe­cies, such as flavonoids and other polyphenols. Based on our experimental data it was concluded that the content of antira­dical species in the extracts obtained using aqueous solutions of ethanol with 48% ethanol concentration is always higher than that found in the extracts obtained using only water or ethanol.

Prof. dr hab. inż. Ryszard ZIELIŃSKI

Poznan University of Economics and Business

Institute of Quality Science

Department of Technology and Instrumental Analysis

Aleja Niepodległości 10, 61-875 Poznań, Poland

tel. (+48) 61-856-9056

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

 

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