SA = Sample absorbance for FRAP value and TPC or absorbance decrease of sample for ABTS and DPPH values
BA = Blank (no extract) absorbance for FRAP value and TPC or absorbance decrease of blank for ABTS and DPPH values
(extract was substituted by deionized water for blank)
Slope = Slope of standard curve
[10 / U] = Total volume of extract (10 ml) / Used volume of extract (ml)
[2] = Weight of used sample (g)
MC = % moisture content of sample / 100
[1,000] = Factor for changing μg to mg.