The monomeric anthocyanin concentration in the original
sample was calculated using the following formula:
TA½Plg 3 glu ðmg=LÞ ¼ ðA MW DF 1000Þ=ðε 1Þ
where, A ¼ Sample absorbance, MW ¼ Molecular weight of Plg-3-
glu (487.5), DF ¼ Dilution factor, ε ¼ Absorption coefficient of Plg-3-
glu (17,330).
The results were expressed as mg Plg-3-glu/kg of sample