... The fruit's protein content is surprisingly high, representing 11.3% of the juice dry matter, and the main amino acids are aspartic acid, glutamic acid and isoleucine (Chunhieng, 2003). According to a book on Malaysian medicinal plants, the chemical constituents of M. citrifolia L. are 5,7-Acacetin-7-O-β-D(+)-glycopyranoside, ajmalicine isomers, alizarin, asperuloside, asperulosidic acid, chrysophanol (1,8-dihydroxy-3-methylanthraquinone), damnacanthol, digoxin, 5,6-dihydroxylucidin, 5,6-dihydroxylucidin-3-β-primeveroside, 5,7-dimethylapigenin- 4'-O-β-D(+)-galacto pyranoside, lucidin, lucidin-3-β-primeveroside, 2-methyl-3,5,6-trihydroxy 2-methyl-4-hydroxy-5,7- dimethoxyanthraquinone 4-O-β-D- glucopyranosyl-(1-4)-α-L- rhamnopyranoside Sang et al. (2002) Flower 5,8-dimethyl-apigenin 4'-O-β-D- galacatopyranoside (adapted from Chan-Blanco et al., 2006) anthraquinone, 3-hydroxymorindone, 3-hydroxymorindone-6-β-primereroside, α- methoxyalizarin, 2-methyl-3,5,6-trihydroxyanthraquinone-6-β-primeveroside, monoethoxyrubiadin, morindadiol, morindin, morindone (1,5,6-trihydroxy-2- methylanthraquinone), morindone-6-β-primeveroside, nordamnacanthal, quinoline, rubiadin, rubiadin 1-methyl ether, saronjidiol, ursolic acid, alkaloids, anthraquinones and their glycosides, caproic acid, caprylic acid, fatty acids and alcohols (C 5-9 ), flavone glycosides, flavonoids, glucose (β-D-glucopyranose), indoles, purines, and β-sitosterol. ...