Resumo

JUAREZ MONTIEL, Rossana Georgina; PINTO APAZA, Nilda  e  CANO DE TERRONES, Teresa. Polymerization of anthocyanin compounds present in the coloring of the yerba santa (Cestrum hediondinum D.) and proof of ion adsorption aluminum (III). Rev. Soc. Quím. Perú [online]. 2013, vol.79, n.1, pp.71-79. ISSN 1810-634X.

Of the coloring of the "hierba santa" Cestrum hediondinum D., they separated six fractions. The solid of the fraction C ë_max 546 nm (BI), 282 nm (BII) and a shoulder to 328 nm. The precipitate of the fraction A, ë_max 520 nm (BI), 280 nm (BII); polymerised with formaldehyde in oxalic acid at a pH between 3,0 to 4,0. Is This confirmed by the IR spectroscopic study of the obtained solids those that show the appearance of bands 1452 cm^-1 and 778 cm^-1, corresponding to the methylene group, which would confirm the polymerization. The IR spectral studies of solid polymer of the fraction C with aluminum trichloride shows us bands outside of the normal interval 2993 cm^-1 and 2465,72 cm^-1 and the variation in the signs 1312 cm^-1 and 1073 cm^-1 all related to the connection C-O and O-H phenols. The study SEM of the solid polymer of the fraction C with aluminum (III), not being uniform the adsorption.

Palavras-chave : Cestrum hediondinum D.; polyphenol; anthocyanin; polymerization.

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