The equipment used for the collection of these data was a HPLC Agilent Technologies 1260 Infinity, with DAD Detector Signal (mAU) = 273 / 4 nm, Reference 360 / 80 nm. 1 ml of total sample was measured in HPLC. The residence time for caffeine was 0.54 min, and the eluent was 75:25 MeCN:DI water. The injections were 10 microlitres at a flow rate of 1.000ml/min.