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Total antioxidant activity in extracts from hops (Humulus lupulus) and cannabis (Cannabis sativa) inflorescences using the DPPH (A,B) and FRAP (C,D) assays. Bars with the same letter are not significantly (p < 0.05) different. DPPH: 2,2-diphenyl-1-picrylhydrazine; FRAP: Ferric reducing antioxidant power; TEAC: Trolox equivalent antioxidant activity.
