تقييم الفعالية المضادة للأكسدة لمستخلصات بعض المصادر النباتية

الملخص EN

The antioxidant activities was determind for some plants waste extracts ( grape seeds , myrtus fruits , black seeds, sesame seeds, flax seeds and olive fruits ) that extraected by ( shaking and soxhlet methods ) with three types of extraction solvents (methanol, ethanol and ethyl acetate ) with different concentrations (40 , 60 and 80% ).

Extract antioxidant activity was compared with synthetic antioxidant BHT by using Reducing power test.

The 80% Methanol as extraction solvent gave higher ratio for yield extract and total phenolic content for studied Plants compared with other solvents .

Themethanolic crude extract of studies plants higher antioxidant activity compared with other plant extracts with ethanol or ethyl actate by using Reducing Power test .

The yield extract and total phenol content and antioxidant activity effected significantly by type and properties of extraction solvent used in this study.

The antioxidant activity for tested samples showed that: BHT>Methanolic plants extract>Ethanolic plants extract>Ethyl acetate plants extract.