–PAGE analysis, the protein patterns of the two extracts were very
similar, but not identical. Antioxidant activities, in both extracts, increased, depending on the concentration of the sample. The
scavenging activities, against superoxide radical of WSR and ASR were high, and the activities at 100 mg/ml were the same as that
of 5 mM ascorbic acid. Although the activities of WSR and ASR, at 50 and 100 mg/ml, did not match that of 1 mM tocopherol, the
samples scavenged hydroxyl radical to about 50–60%. This shows that the protein fractions in royal jelly have high antioxidative
activity and scavenging ability against active oxygen species. Royal jelly seems applicable in both health food and medicine.
# 2003 Elsevier Ltd. All rights reserved.