COMPARISON OF ETHANOLIC EXTRACT YIELD, pH, POLYPHENOLS AND FLAVONOIDS IN ALGERIAN PROPOLIS COLLECTED FROM numerous GEOGRAPHIC REGIONS

The present work aims to guage the yield, pH, the entire polyphenols and flavonoids contents in propolis collected from totally different ecosystems in Algerie. 10 samples of propolis, issued from totally different floral and geographical origins, are collected by beekeepers between March and Gregorian calendar month 2015 and were classified in keeping with the nations (Est, West, Center and South) the samples were labeled  from P1 to P10 and unbroken in dark at 4°C till use. The determination of polyphenols and total flavonoids contents was meted out during a specialised laboratory in Belgium. during this study, the propolis collected from the southern and western regions had the very best concentrations of polyphenols ninety nine,98; 71,6 and 76,1 Gallic acid/g of propolis. the identical result was obtained for flavonoids with fifty four,4; 38,7 and 42,9 mg Quercetin/g propolis. the upper yield, when ethanolic extraction of the propolis, was obtained from the southern region sample (P10) with a rate of thirty-nine,32%. Our study showed that the richest propolis samples of Algerie, in total flavonoid and total polyphenol contents  were those collected from the southern (P10) and also the western region (P6 and P8).

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Posted April 9, 2019 00:42