IDENTIFICATION OF SOME PHENOLICS IN PEAR FRUIT

Four hydroxycinnamic acid esters and eight flavonol glycosides were is olated and identified in pear fruit. By chemical and spectral methods the cinnamics were identified as 5'-caffeoylquinic, p-coumaroylquinic, p-coumaroylmalic, and dicaffeoylquinic esters. The mixture of flavono ls included three quercetin and five isorhamnetin glycosides. The quer cetin 3-O-glycosides were identified as rutinoside, glucoside, and mal onyl glucoside, and the isorhamnetin 3-O-glycosides included rutinosid e, galactorhamnoside, glucoside, malonyl galactoside, and malonyl gluc oside.