Chemical Examination of the Fruits of Diospyros peregrina Gurke

Abstract

The brownish-yellow oil obtained from the petroleum ether extract of the fruits of Diospyros peregrina was found to be a glyceride of myristic, palmitic, stearic, oleic, linoleic and palmitoleic acids. The glycoside from the alcoholic extract was characterized as β-sitosterol-D-glucoside. The free sugars isolated were found to be

fructose, galactose, glucose, lactose, mannose and sucrose. The pectin

precipitated from the water extract on hydrolysis revealed the

presence of arabinose, galactose and galacturonic acid in it. The

protein from the defatted fruits on hydrolysis gave histidine, lysine,

glycine, aspartic acid, glutamic acid, alanine, proline, methionine,

leucine and tryptophan.