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Química • Acta Amaz. 42 (2) • June 2012 • https://doi.org/10.1590/S0044-59672012000200016 linkcopy

Open-access Evaluation of the distribution of copper associated to compounds of different molecular weights in the acai pulp

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    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.

    metal; SEC; GF AAS; proteins; Euterpe oleracea Mart

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    Instituto Nacional de Pesquisas da Amazônia Av. André Araujo, 2936 Aleixo, 69060-001 Manaus AM Brasil, Tel.: +55 92 3643-3030, Fax: +55 92 643-3223 - Manaus - AM - Brazil
    E-mail: acta@inpa.gov.br
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