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    Raman spectroscopic study of antioxidant pigments from cup corals Tubastraea spp

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    Publication date
    2014
    Author
    Maia, L.F.
    Ferreira, G.R.
    Costa, R.C.
    Lucas, N.C.
    Teixeira, R.I.
    Fleury, B.G.
    Edwards, Howell G.M.
    de Oliveira, L.F.C.
    Keyword
    Animals; Anthozoa; Antioxidants; Carotenoids; Indole alkaloids; Molecular structure; Pigments; Quantum theory; Spectrum analysis
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    Chemical investigation of nonindigenous Tubastraea coccinea and T. tagusensis by Raman spectroscopy resulted in the identification of carotenoids and indolic alkaloids. Comparison of Raman data obtained for the in situ and crude extracts has shown the potential of the technique for characterizing samples which are metabolic fingerprints, by means of band analysis. Raman bands at ca. 1520, 1160, and 1005 cm–1 assigned to ν1(C═C), ν2(C—C), and ρ3(C—CH3) modes were attributed to astaxanthin, and the band at 1665 cm–1 could be assigned to the ν(C—N), ν(C—O), and ν(C—C) coupled mode of the iminoimidazolinone from aplysinopsin. The antioxidant activity of the crude extracts has also been demonstrated, suggesting a possible role of these classes of compounds in the studied corals.
    URI
    http://hdl.handle.net/10454/10503
    Version
    No full-text in the repository
    Citation
    Maia LF, Ferreira GR, Costa RC et al (2014) Raman spectroscopic study of antioxidant pigments from cup corals Tubastraea spp. Journal of Physical Chemistry A. 118(19): 3429-3437.
    Link to publisher’s version
    https://doi.org/10.1021/jp501278w
    Type
    Article
    Collections
    Life Sciences Publications

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