DPPH	α,α-diphenyl-β-picrylhydrazyl radical
EDTA	ethylenediaminetetraacetic acid
ET	electron transfer
PTIO	2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide radical
RAF	radical adduct formation
ROS	reactive oxygen species
SD	standard deviation
SPSS	statistical product and service solutions
Tris	tris-hydroxymethyl amino methane
UPLC–ESI–Q–TOF–MS	ultra-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry