A Flavonol Compound From Chingia Sakayensis (Zeiller) Holtt And Its Activity As DPPH Free Radical Scavenger = Suatu Senyawa Flavonol dari Daun Tumbuhan Paku Chingia Sakayensis (Zeiler) Holtt dan Aktivitasnya Sebagai...
ABSTRACT It has been separated a flavonol 3,5,7,4'-tetrahydroxy flavone (kaemferol) from the methanol extract partitioned by ethyl acetate of the leaves of the fern Chingia sakayensis (Zeiller) Holtt. This was obtained as yellow crystals with m.p. 271-273°C. Characterization of its molecular s...
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| Format: | Article NonPeerReviewed |
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[Yogyakarta] : Universitas Gadjah Mada
2003
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| Online Access: | https://repository.ugm.ac.id/18521/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=1312 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | ABSTRACT
It has been separated a flavonol 3,5,7,4'-tetrahydroxy flavone (kaemferol) from the methanol extract partitioned by ethyl acetate of the leaves of the fern Chingia sakayensis (Zeiller) Holtt. This was obtained as yellow crystals with m.p. 271-273°C. Characterization of its molecular structure was carried out by spectroscopic methods (UV, IR, 1H-NMR, HMQC, HMBC, 13C-NMR and FABMS). Kaemferol indicated the DPPH free radical scavenger activity in TLC autography.
Keywords: Chingia sakayensis (Zeiller) Holtt, flavone, kaemferol, DPPH free radical scavenger activity |
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