%0 Journal Article %T Anthocyanins standards (cyanidin-3-O-glucoside and cyanidin-3-O-rutinoside) isolation from freeze-dried a£¿a¨ª (Euterpe oleraceae Mart.) by HPLC %A Gouv¨ºa %A Ana Cristina Miranda Senna %A Araujo %A Manuela Cristina Pessanha de %A Schulz %A Daniel Filisberto %A Pacheco %A Sidney %A Godoy %A Ronoel Luis de Oliveira %A Cabral %A Lourdes Maria Corr¨ºa %J Ci¨ºncia e Tecnologia de Alimentos %D 2012 %I Sociedade Brasileira de Ci¨ºncia e Tecnologia de Alimentos %R 10.1590/S0101-20612012005000001 %X availability of analytical standards is a critical aspect in developing methods for quantitative analysis of anthocyanins. the anthocyanins cyanidin-3-o-glucoside and cyanidin-3-o-rutinoside were isolated from samples of freeze-dried a£¿a¨ª (euterpe oleraceae mart.), which is a round and purple well-known palm fruit in brazil, and then used as standards. the isolation of the anthocyanins was performed by high performance liquid chromatography (hplc), using an adapted six-channel selection valve. the identification of anthocyanin pigments in a£¿a¨ª was based on mass spectrometric data for molecular ions and ms-ms product ions and on previous published data. after the collection procedure, standards with a high purity grade were obtained and an external standard curve of each anthocyanin was plotted. %K anthocyanins %K standard %K isolation %K a£¿a¨ª %K euterpe oleraceae mart. %K hplc. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0101-20612012000100006&lng=en&nrm=iso&tlng=en