The investigation total content of flavonoids in the blackberry (Rubus plicatus) leaves

Abstract

Blackberry (Rubus fruticosus L.) is a perennial shrubbelonging to the rose family (Rosaceae). It is famous for its fruit which has medicinal, nutritive and cosmetic value. The genus Rubus is the largest genus of Rosaceae family and contains approximately 700 species. Rubus con- sists of 12 subgenera with some domestic species. Blackberry distributed throughout in Europe, Oce- ania, North and South America and Asia. Variability prevalence is observed in morphology, flower color, growth habit & chemical composition. In this large genus, there are a lot of wild species as well as hybrids and most of them are self-infertileor dio-ecious. The chemical composition of black- berry leaves includes a wide range of biologically active compounds such as catechins (mainly cate- chin), organic acids (notably citric and malic acids), hydroxycinnamic acids (such as caffeic and fer- ulic acids), flavonoids, ellagotannins. Given this background, the present study aimed to determine the total content of flavonoids in blackberry leaves using spectrophotometric methods