Roowi S., Stalmach A., Mullen W., Lean M.E., Edwards C.A., Crozier A. (2010) Green tea flavan-3-ols: colonic degradation and urinary excretion of catabolites by humans. J Agric Food Chem 58:1296-304

Urine analysed without enzymatic deconjugation

Cumulative Excretion in Urine (µmol)
Number Dose Multiple Dose Duration Time (hours) Metabolite
0 2 5 8 24
1 300 mL Single Dose 0 0.6 0.7 0.8 2.2
Catechol
2 300 mL Single Dose 0 0.6 3.5 12 69
Pyrogallol
3 300 mL Single Dose 0 0 0.6 20.6 21
5-(3',4',5'-trihydroxyphenyl)-γ-valerolactone
Chart?cht=lxy&chs=600x300&chf=bg,s,fafafa&chxt=x,x,y&chxr=0,0.0,24.240000000000002,2|2,0.0,69.69,5&chds=0.0,24.240000000000002,0.0,69.69,0.0,24.240000000000002,0.0,69.69,0.0,24.240000000000002,0.0,69.69&chxl=1:|time+after+ingestion+(hours)&chtt=cumulative+excretion+in+urine+(µmol)&chxp=1,50|3,50&chd=t:0.0,2.0,5.0,8.0,24.0|0.0,0.6,0.7,0.8,2.2|0.0,2.0,5.0,8.0,24.0|0.0,0.6,3.5,12.0,69.0|0.0,2.0,5.0,8.0,24.0|0.0,0.0,0.6,20.6,21