Abstract
Phenolic composition of the European cranberrybush (ECB) (Viburnum opulus L.) juice was determinedusing high-performance liquid chromatography. The juice contained 2037 mg kg)1 chlorogenic acid, whichwas 54% of total phenolics, and several other phenolics such as (+)-catechin, ())-epicatechin, cyanidin-3-glucoside, cyanidin-3-rutinoside and six different glucosides of quercetin. Because of its strong astringenttaste, the juices were treated with various doses of two different types of activated carbons (Granucol Bi andGranucol Ge) in order to remove phenolic compounds. Results revealed that both types of activated carbonswere equally effective on astringency removal (P < 0.01). A 20–30% reduction in total phenolics wasachieved by application of 2.0–3.0 g L)1 activated carbon which also removed unpleasant taste and odour.
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