Antioxidative activities of some commercially honeys, royal jelly, and propolis

The antioxidative effects of some honeys, royal jelly, and propolis were ev aluated using a lipid peroxidation model. Activities gradually decreased ov er time. Buckwheat honey, pure honey (Chinese milk vetch). and propolis wer e the most active among honeys. Excepting royal jelly and propolis. the act ivities of all honeys were drastically decreased by heat treatment. The sup eroxide-scavenging activities of each honey, royal jelly. and propolis decr eased in the order: propolis > royal jelly > buckwheat honey > honey (Japan ese bee) > mixed-breed honey > pure honey (acacia) > commercially available honey > pure honey (Chinese milk vetch). (C) 2001 Elsevier Science Ltd. Al l rights reserved.