%0 Journal Article %T Physico-chemical characterization and bioactive compounds of blackberry fruits (Rubus sp.) grown in Brazil %A Hassimotto %A Neuza Mariko Aymoto %A Mota %A Renata Vieira da %A Cordenunsi %A Beatriz Rosana %A Lajolo %A Franco Maria %J Ci¨ºncia e Tecnologia de Alimentos %D 2008 %I Sociedade Brasileira de Ci¨ºncia e Tecnologia de Alimentos %R 10.1590/S0101-20612008000300029 %X five blackberry cultivars (rubus sp.) were evaluated for antioxidant capacity, bioactive compounds and composition. ascorbic acid levels, consisting of dehydro-ascorbic acid, ranged from 9.8 to 21.4 mg.100 g-1 fresh weight. cyanidin (66 to 80% of total flavonoids), epicatechin, quercetin and traces of kaempferol were the main flavonoids found in all cultivars. the five cultivars presented high antioxidant capacity in the ¦Â-carotene/linoleic acid system, with inhibition similar to the synthetic antioxidant bht, at a 50 ¦Ìm concentration. caingangue cultivar presented high vitamin c and total phenolics content, while guarani had the highest cyanidin, total anthocyanin and total flavonoids levels and also the highest antioxidant capacity. these cultivars also presented good tss/ta ratios. from the data, at a quantitative level, blackberry can be considered a good source of bioactive compounds, as well as potentially beneficial to human health. %K rubus %K flavonoids %K anthocyanin %K antioxidant capacity. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0101-20612008000300029&lng=en&nrm=iso&tlng=en