COMPARATIVE STUDY REGARDING THE TOTAL POLYFENOL CONTENT OF SOME TINCTURES AND OILS FROM ROMANIAN MARKET

A. Becze, M. Roman, C. Puia, M. Dordai, D. Simedru, E. Luca

Abstract


In the last decade, there has been much interest in the potential health benefits of plant tinctures because of their high content of polyphenols. 27 samples of tinctures and oils from different plants were analyzed using Folin-Ciocalteu method in order to determine the total polyphenols content. Measurements were compared with the calibration curve of Gallic acid (25, 50, 100, 250, 500 ppm) and the results were expressed as Gallic acid equivalents. Values obtained ranged within very broad limits 6 - 964 mg/L GAE. The lowest concentration was found in Aloe paradisiacum and Aloe marlothi (6 and 9 mg/L GAE) and the heights concentration in Cinnamomum sp. (964 mg/L GAE). The concentration of total polyphenols found in Cinnamomum sp. was 5.6 times bigger than the average concentration of total polyphenols found for the others tinctures (172 mg/L GAE).

Keywords


polyphenols, Folin-Ciocalteu, Spectrophotometer, tinctures, plants

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DOI: http://dx.doi.org/10.15835/agrisp.v1i101.12698