Influence of the drying method in the antioxidant potential and chemical composition of four shrubby flowering plants from the tribe Genisteae (Fabaceae)

► Shade-drying is traditionally used to process Genisteae shrubs flowers. ► Shade-drying decreased the antioxidant activity of the studied samples. ► Shade-drying decreased hydrophilic and lipophilic antioxidant contents. ► Freeze-drying proved to be more efficient in the maintenance of antioxidant potential. ► Pterospartum tridentatum was the most promising species.