%0 Journal Article
%@ 0853-9987
%A Lindawati, Vivi
%A Kardono, L. Broto S. Kardono
%D 2006
%F bkpkkemkes:5481
%I Sekretariat Badan Penelitian dan Pengembangan Kesehatan
%J Media Penelitian dan Pengembangan Kesehatan
%K antioxidant activity, extracts of P. macrocarpa; Thymelaeaceae; seavenging effects, a,a-diphenyl-B-picrylhydrazyl radical
%N 4
%P 1-7
%T Aktivitas Antioksidan Dari Berbagai Fraksi Esktrak Daging Buah dan Kulit Biji Mahkota Dewa (Phaleria macrocarpa)
%U http://www.badankebijakan.kemkes.go.id/repositori/id/eprint/5481/
%V 16
%X The antioxidant activity of various extracts from P. macrocarpa, fam. Thymelaeaceae, were investigated. The in vitro biossay has been studied for screening antixidant activity of chemical compounds from n-hexame, ethyl acetate are prepared of each plants part obtained, the evaluated by using spectrophotometry methods. This methods conducted by using a,a-diphenyl-B-picrylhydrazyl (DPPH) as the sourches of free radical and BHA (butylated hydroxy anisole) as the posite control. The antioxidant activity of  scavenging effects on a,a-diphenyl-B-picrylhydrazyl radical decreased in the order polar > semi polar > non polar extracts with values from 13-90% at dose of 200 ug.