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The Beekeeping and Honeybees Forum is a great place to find beekeepers sites and information about how to keep bees and produce honey. Here you can keep up with the newest techniques for beekeeping and find resources for apiaran technology.
 

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Strong Antioxidant Activity in Spanish Propolis - 07/31/2013
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Thanks to the variety of tree and plant species around the world,  Propolis can  have effects that are enhanced by specific species of tree resin. Fortunately, more regions of the world are discovering rich sources of healthy flavonoids  in their Propolis... Chemical and Functional Characterisation of Propolis Collected from East Andalusia (Southern Spain) Journal of Phytochemical Analysis , 2013 May 14 INTRODUCTION : Propolis is a complex mixture of natural sticky, gummy and resinous components produced by honeybees (Apis mellifera L.) from plant materials. However, phytochemical data of the Andalusian (southern Spain) propolis are scant. OBJECTIVE : The primary objectives of this study were to chemically characterise the compounds and evaluate the anti-oxidant activity found in 28 Andalusian propolis samples. METHODS : Ethanol extracts of propolis (EEP) were prepared and examined for their anti-oxidant activity by 2,2'-azinobis(3-ethylbenzothiazoline-6-sulphonic acid) and 2,2-diphenyl-1-picrylhydrazyl assays. To characterise the phenolic composition, the presence of 11 compounds was identified by HPLC analysis with photodiode array and mass spectrometric detection. RESULTS : All propolis samples had strong anti-oxidant activity, accompanied by high total phenolic content . The most abundant compounds were flavonoids. Concerning the phenolic compounds content, our results showed that the 75% of the samples analysed contained at least 80 mg/g of flavonoids, pr...

Strong Antioxidant Activity in Spanish Propolis



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