A FLAVONOL COMPOUND FROM  Chingia sakayensis  (Zeiller) Holtt AND ITS ACTIVITY AS DPPH FREE RADICAL SCAVENGER

Suyatno Suyatno; Rukmaningsih Rukmaningsih; Noor Cholies Zaini; Motoo Tori

doi:10.22146/ijc.21879

A FLAVONOL COMPOUND FROM Chingia sakayensis (Zeiller) Holtt AND ITS ACTIVITY AS DPPH FREE RADICAL SCAVENGER

https://doi.org/10.22146/ijc.21879

Suyatno Suyatno^(1*), Rukmaningsih Rukmaningsih⁽²⁾, Noor Cholies Zaini⁽³⁾, Motoo Tori⁽⁴⁾

(1) Jurusan Kimia FMIlPA, Universitas Negeri Surabaya (UNESA), Surabaya
(2) Fakultas Farmasi Universitas Airlangga, Surabaya
(3) Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho
(4) Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho
(*) Corresponding Author

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^oC. 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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DOI: https://doi.org/10.22146/ijc.21879