Phytochemical Study of Iraqi Cydonia oblonga Miller Fruit

Abstract

Quince (Cydonia oblonga) fruit has a lot of phytochemicals that draw the attention of many researchers nowadays for its important medicinal values. This study concerns the identification and isolation of two flavonoids (Astragalin) flavonol glycoside and (Isorhamnetin) from fruit ethyl acetate extract of Iraqi cultivated Cydonia oblonga. The identification was carried out by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC) analysis techniques. The yield of isolated compound was (1.6 and 1.3 %) for astragalin and isorhamnetin, respectively. This was achieved by using preparative thin layer chromatography glass plate (20×20) cm. This is followed by structure elucidation of isolated compounds through fourier transform infrared (FT-IR), ultraviolet (UV), nuclear magnetic resonance (1HNMR) and carbon-13 nuclear magnetic resonance (13CNMR). analysis procedures.