Study of Antioxidant Activity of Garden Blackberries (Rubus fruticosus L.) Extracts Obtained with Different Extraction Solvents

Blackberries are rich in antioxidants due to their high polyphenol and vitamin content, making them an excellent source of health protection. It is well known that good quality juices fruit extracts can be obtained only from fruits. The aim this research characterize the antioxidant properties garden blackberries fruits grown Turia (Romania). Extracts were made blackberry with four different solvents, capacity was studied by applying DPPH FRAP assay. total phenolic content (with Folin–Ciocâlteu reagent), anthocyanin pH differential method), flavonoid aluminum chloride colorimetric method) also measured. quercetin gallic acid determined HPLC-DAD. As best results 90% v/v acidified acetonitrile, Hansen parameters analysis performed for acetonitrile-water solvent mixture as a cyanidin-3-O-glucoside solute.