Print version ISSN 0044-5967
TRINDADE, Samantha Leite da; NUNES, Patrícia de Oliveira and FERNANDES, Kelly das Graças. Evaluation of the distribution of copper associated to compounds of different molecular weights in the acai pulp. Acta Amaz. [online]. 2012, vol.42, n.2, pp. 287-292. ISSN 0044-5967. http://dx.doi.org/10.1590/S0044-59672012000200016.
In this study, size exclusion chromatography (SEC) with ultraviolet (UV) and graphite furnace atomic absorption spectrometry (GF AAS) off-line detection was used to investigate the association of copper to high molecular weight (HMW) and low molecular weight (LMW) species present in Euterpe oleracea Mart. pulp. Total concentration of copper was 10.5 µg g-1. Copper was found to be associated to fractions corresponding to 28.7, 2.6 and 0.43 kDa.
Keywords : metal; SEC; GF AAS; proteins; Euterpe oleracea Mart.