Each stock solution was diluted 2 times in buffer solution, with the exception of the green tea solution, which was diluted 20 times. The ORAC assay was carried out by mixing 200 μL of the antioxidant solution with 1.9 mL of fluorescein solution in a 10 mm spectrophotometer cuvette. Then, the reaction was triggered by adding 1.4 mL of the AAPH solution. The resulting mixture was briefly shaken and the absorbance at 490 nm was monitored using a Spectrophotometer UV-1700 Pharmaspec from Shimadzu Ibérica (Madrid, Spain). The buffer solution was used as reference. The reaction was carried out at 40 °C for 60 min using the “kinetic mode”. Immediately before the assay, the corresponding volumes of the reagent solutions were incubated at 40 °C during 15 min to minimise temperature-related irreproducibility.