Colour Interval Value Publication Food Name Reference
[ 0.69, 0.82 ) 0.69 mg/100 ml Commercial bottled oolong tea - Hong Kong - Pokka Oolong Tea Xu J.Z., et al (2003) Epimerisation of tea polyphenols in tea .... Journal of the Science of Food and Agriculture 83:1617-1621 PubMed (15182391)
[ 0.82, 0.96 ) 0.95 mg/100 ml Commercial bottled oolong tea - Hong Kong - Vita Oolong Tea Xu J.Z., et al (2003) Epimerisation of tea polyphenols in tea .... Journal of the Science of Food and Agriculture 83:1617-1621 PubMed (15182391)