Optical Detection of Antioxidant Capacity in Food Using Metal Nanoparticles Formation. Study on Saffron Constituents
A simple metal nanoparticles (MNPs) based colorimetric assay for the antioxidant capacity of Saffron polyphenolics is proposed. The proposed method has been compared with the commonly used classical assays (FC and ABTS); a significant similar response trend was found with the ABTS. Additionally, it was also found that the proposed approach was polyphenols selective versus other endogenous antioxidants as safranal and crocin.
KeywordsMetal nanoparticles Antioxidants Polyphenols Saffron AuNPs AgNPs
The Authors acknowledge the financial contribution of the Ministry of Foreign Affairs for the Project “Materiali nanostrutturati per sistemi (bio)chimici sensibili ai pesticidi”.
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