Isolasi dan Karakterisasi Flavonoid dari Daun Belimbing (Averrhoa carambola Linn.L)
Abstract: Research of
isolation and characterization of flavonoids from the leaves of star fruit
(Averrhoa carambola Linn.L) has been done. A 393 g of condensed methanol
extracts obtained from 5 kg of fresh leaves starfruit. The methanol extract of
hot water added, further fractionated successively with n-hexane and ethyl
acetate, resulting in a 4000 ml n-hexane fraction and 5000 ml of ethyl asetat.
The flavonoid phytochemical test from the fractionation showed negative
fraction of n-hexane, ethyl acetate fraction and water fraction flavonoid
positive. Results separation by column chromatography ethyl acetate fraction
concentrated extract produced 6 fractions, namely fraction A, B, C, D, E and F.
Characterization using UV light gives a brown before chromatograms steamed
green ammonia and gives a dark brown color after steamed with ammonia. Based on
the existing literature is suspected in fraction B contained flavones
glycosides, biflavonil or unusual tersulih flavons.
Penulis: Rido Ardianto,
Yustini Ma’aruf, Sri Benti Etika
Kode Jurnal: jpkimiadd130519
