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Advisor(s)
Abstract(s)
No presente trabalho, descreve -se a composiĆ§Ć£o em betacianidinas (classe das betalaĆnas com pigmentaĆ§Ć£o vermelha-
-roxo) da perpƩtua roxa (Gomphrena globosa L.), de forma a destacar esta planta como fonte alternativa de corantes naturais.
A anĆ”lise foi feita por cromatografia lĆquida de alta eficiĆŖncia acoplada a um detetor de fotodĆodos e espetrometria
de massa com ionizaĆ§Ć£o por dispersĆ£o de eletrƵes (HPLC -PDA -MS/ESI), apĆ³s extraĆ§Ć£o com diferentes solventes (infusĆ£o
com Ć”gua e maceraĆ§Ć£o com Ć”gua: metanol, 80:20, v/v).
In this paper, it is described the betacyanins composition (class of betalain with red -purple pigmentation) of globe amaranth (Gomphrena globosa L.) in order to highlight this plant as an alternative source of natural dyes. The analysis was performed by high -performance liquid chromatography coupled with a photodiode array detector and mass spectrometry with electron spray ionization (HPLC -PDA -MS/ESI) after extraction with different solvents (infusion with water and maceration with water: methanol, 80:20, v/v).
In this paper, it is described the betacyanins composition (class of betalain with red -purple pigmentation) of globe amaranth (Gomphrena globosa L.) in order to highlight this plant as an alternative source of natural dyes. The analysis was performed by high -performance liquid chromatography coupled with a photodiode array detector and mass spectrometry with electron spray ionization (HPLC -PDA -MS/ESI) after extraction with different solvents (infusion with water and maceration with water: methanol, 80:20, v/v).
Description
Keywords
Gomphrena globosa L. PolifenĆ³is Corante Betacianidinas Cromatografia
Pedagogical Context
Citation
Roriz, CustĆ³dio Lobo; Barros, Lillian; Carvalho, Ana Maria; Santos-Buelga, Celestino; Ferreira, Isabel C.F.R. (2017). Gomphrena globosa L. como fonte de corantes naturais: caracterizaĆ§Ć£o em betacianidinas. Revista de CiĆŖncias AgrĆ”rias, ISSN 2183-041X. 40, nĀŗ especial, p. 151-154