Motoo tori
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770

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DPPH FREE RADICAL SCAVENGER ACTIVITY OF FLAVONOID FROM THE LEAVES OF FERN Chingia sakayensis (Zeiller) Holtt Suyatno, Suyatno; Zaini, Noor Cholies; Tori, Motoo
Indonesian Journal of Chemistry Vol 5, No 2 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (413.745 KB) | DOI: 10.22146/ijc.21827

Abstract

A flavonoid compound in flavonol type namely kaemferol was isolated from the ethyl acetate fraction of the methanol extract of the fern Chingia sakayensis (Zeiller) Holtt's leaves. The DPPH free radical scavenger activity of kaemferol was stronger than buthyl hyroxy toluene (BHT) but it was weaker than ascorbic acid (vitamin C) and -tocopherol (vitamin E).
NON PHENOLIC COMPOUNDS ISOLATED FROM THE LEAVES OF FERN Chingia sakayensis (Zeiller) Holtt Suyatno, Suyatno; Zaini, Noor Cholies; Indrayanto, Gunawan; Tori, Motoo
Indonesian Journal of Chemistry Vol 6, No 1 (2006)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.909 KB) | DOI: 10.22146/ijc.21779

Abstract

Two non phenolic compounds namely a wax ester hexacosyl hexadecanoic and   a steroid -sitosterol were isolated from the n-hexane extract of the fern Chingia sakayensis (Zeiller) Holtt's leaves. Their structures were elucidated on the basis of the spectrometric evidences  (UV, IR, 1H-NMR, 13C-NMR, EIMS and HR-CIMS).
A FLAVONOL COMPOUND FROM Chingia sakayensis (Zeiller) Holtt AND ITS ACTIVITY AS DPPH FREE RADICAL SCAVENGER Suyatno, Suyatno; Rukmaningsih, Rukmaningsih; Zaini, Noor Cholies; Tori, Motoo
Indonesian Journal of Chemistry Vol 3, No 3 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (46.471 KB) | DOI: 10.22146/ijc.21879

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. 271-273oC. 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.
Phenolic Compounds Isolated from The Fern Chingia sakayensis (Zeiller) Holtt Suyatno, Suyatno; Syarief, Sri Hidayati; Hidajati, Nurul; Rinaningsih, Rinaningsih; tori, Motoo; Shimizu, Kuniyoshi Shimizu
Jurnal ILMU DASAR Vol 10 No 1 (2009)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.569 KB)

Abstract

Four known phenolic compounds namely kaemferol, matteucinol, farrerol, and matteucinol-7-O-β-D-glucoside were isolated for the first time from the fern Chingia sakayensis (Zeiller) Holtt’s. All substances were separated by chromatographic techniques, purified by recrystalization, elucidated on the basis of spectroscopic evidence and by comparation with those reported data in literature. These results were very important to study the phytochemicals of the other fern in Chingia genus based on the chemotaxonomic approach.