To compare the antioxidant activities of various LHTs,samples of each were extracted with 80 C water or 20 C ethanol, and their total phenolic content (TPC),total flavonoid content (TFC), 2,2-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, 2,2-azinobis-3 ethyl benxothiazoline-6-sulphonic acid (ABTS) radical cation decolorization activity, ferric reducing power, and ferrous ion chelating effect were measured.