The floret extracts were obtained using different pure solvents with increasing polarity (ethyl acetate, ethanol, methanoland
Polarity (P) of mixture solvent was calculated according to the following equation suggested by where a and bare volume percentage of organic solvent A and B in the solvent mixture, and Paand Pbare theabsolute polarity of solvent A and B, respectively
where and b are volume percentage of organic solvent A and B in the solvent mixture
are theabsolute polarity of solvent A and B, respectively