Specific and varietal significant differences were
observed in all parameters. The highest TPC (737.32 and 1492.93 mg/100 g d.w.) and FRAP (140.32 and
101.25 lmol/g d.w.) values were reached by green lentils in both aqueous-organic extract and residue,
respectively. Sweet chestnuts had the highest total lignans (980.03 lg/100 g d.w.). It was also found that
the plant lignans standards have a higher antioxidant activity than enterolignans standards and that
matairesinol has the highest activity.