TY - JOUR Y1 - 2006/12// A1 - Lindawati, Vivi A1 - Kardono, L. Broto S. Kardono EP - 7 PB - Sekretariat Badan Penelitian dan Pengembangan Kesehatan TI - Aktivitas Antioksidan Dari Berbagai Fraksi Esktrak Daging Buah dan Kulit Biji Mahkota Dewa (Phaleria macrocarpa) UR - http://www.badankebijakan.kemkes.go.id/repositori/id/eprint/5481/ N2 - 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. ID - bkpkkemkes5481 SP - 1 IS - 4 KW - antioxidant activity KW - extracts of P. macrocarpa; Thymelaeaceae; seavenging effects KW - a KW - a-diphenyl-B-picrylhydrazyl radical JF - Media Penelitian dan Pengembangan Kesehatan AV - public SN - 0853-9987 VL - 16 ER -