Quantification of flavones, ferulic and caffeic
acids were carried at 335 nm using o-cumaric acid as internal
standard; quantification of secoiridoid derivates and hydroxytyrosol
acetate was accomplished at 280 nm using o-cumaric acid as
internal standard; the quantification of the rest of the phenolic
compounds was carried out at 280 nm using PHFA as internal standard