Guy P.A., Renouf M., Barron D., Cavin C., Dionisi F., Kochhar S., Rezzi S., Williamson G., Steiling H. (2009) Quantitative analysis of plasma caffeic and ferulic acid equivalents by liquid chromatography tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 877:3965-74 PubMed (19879819)

Plasma analysed after enzymatic deconjugation

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Plasma Concentration (nmol/L)
Number Dose Multiple Dose Duration Time (hours) Polyphenol Source
Name as described in publication
0 1 4 5 8 24
1 4 g Single Dose 0 100 45 52 55 21
instant coffee in hot water