Colour Interval Value Publication Food Name Reference
[ 0.01, 0.02 ) 0.01 mg/100 g FW Welsh onion - Allium sp - Conventional Ren H., et al (2001) Antioxidative and antimutagenic activiti.... Journal of the Science of Food and Agriculture 81:1426-1432
[ 0.02, 0.04 ) 0.03 mg/100 g FW Welsh onion - Allium sp - Organic Ren H., et al (2001) Antioxidative and antimutagenic activiti.... Journal of the Science of Food and Agriculture 81:1426-1432