Table 1: Composition of the highly purified secoiridoid-rich extract (POS), manufactured by N-Zyme Biotec GmbH, Darmstadt, Germany.

Secoiridoid derivativeContent (%)

Oleuropein aglycone36.7
Hydroxytyrosol24.7
Oleacein14.6
Elenolic acid derivatives10.5
Oleuropein7.2
Oleurosid6.2