Monday, June 2, 2014
Saturday, April 20, 2013
A prenylated cinnamic acid derivative as well as six prenylated tetrahydroxystilbenes were isolated from the ethyl acetate extract of propolis that originated from Kangaroo Island, Australia. Furthermore, six known stilbenes and two known flavanones were also identified from the same sample. Stilbenes are not common in propolis; therefore, Kangaroo Island propolis is considered a unique type of propolis that is rich in prenylated stilbenes. Stilbene propolis from Kangaroo Island showed a stronger scavenging activity towards DPPH free radical than Brazilian green propolis. This strong activity can be explained by the presence of large number of stilbenes, most of them showed strong free radical scavenging activity.
Copyright © 2012 Elsevier Ltd. All rights reserved.
- [PubMed - indexed for MEDLINE]
Sunday, January 13, 2013
Autumn conditions on Kangaroo Island are excellent for raising highly productive queens for future honey harvesting. This is due to the temperate climate, reliable rainfall, and unspoilt native vegetation which covers 45% of the land.