4.4 Article

A new colorimetric assay for antioxidant capacity and photostability

Journal

COLORATION TECHNOLOGY
Volume 132, Issue 3, Pages 195-200

Publisher

WILEY
DOI: 10.1111/cote.12210

Keywords

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Funding

  1. Junta de Andalucia/European Union (FEDER) [P11-CTS-7962 MO]
  2. Ministerio de Economia y Competitividad [BFLI2015-69183-P]

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The antioxidant capacity of cysteine, glutathione, N-acetylcysteine, and ascorbic acid to reduce Methylene Blue to colourless Leucomethylene Blue was analysed. Interestingly, transient exposure of Leucomethylene Blue to sunlight resulted in a reversible oxidation reaction and thus, provided a fast, easy, and simple quantitative assay to determine antioxidant capacity and photostability of biologically relevant antioxidants.

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