Colour Interval Value Publication Food Name Reference
[ 18.00, 19.05 ) 18.00 mg/100 g FW Stripped refined olive oil Keceli T., et al (2001) The antioxidant activity and stability o.... Journal of the Science of Food and Agriculture 81:1391-1396
[ 19.05, 20.11 ) 20.10 mg/100 g FW Mix of extra virgin olive oil and refined oil Samaniego-Sanchez C., et al (2007) Different radical scavenging tests in vi.... Analytica Chimica Acta 593:103-107 PubMed (17531830)