African mango glycosidically bound volatile compounds.
Sakho M., Chassagne D., Crouzet J.
Author Affiliation: École Nationale Supérieure Universitaire de Technologie, B.P. 5085, Dakar, Senegal.
Journal of Agricultural and Food Chemistry 45 : 883-888
Abstract : Carbohydrate and aglycone moieties, released, respectively, by acid and enzymatic hydrolysis of African mango pulp extracts containing glycosidically bound compounds, were identified by TLC, GC, and GC/MS. Glucose was the most important sugar constituent of the glycoside saccharidic moiety, while significant amounts of arabinose and trace amounts of rhamnose were detected. Several aglycones ((Z)-hexen-3-ol, hexanol, hexanoic acid, 2,5-dimethyl-4-hydroxy-3-(2H)furanone (furaneol), linalool oxides, ?-terpineol, carvacrol, vanillin, cis- and trans-6-p-menthen-2,8-diol, 1,8-p-menthadien-7-ol, 1-p-menthen-7,8-diol, and 9-hydroxymegastima-4-en-3-one) were identified as additional mango bound volatile compounds. Fatty acids (myristic and stearic acids) were also found in glycosidically bound form. Ten glycosides (benzyl, 2-phenylethyl, and ?-terpinyl glucosides and rutinosides, eugenyl, vanillyl and furanyl glucosides and ?-terpinyl arabinoglucoside) were identified for the first time in mango by GC/MS of trifluoroacetylated derivatives and GC using reference compounds. Linalyl oxide glucosides (4 isomers) and C13 norisoprenoid derivatives (9-hydroxymegastima-4,6-dien-3-one (2 isomers), 9-hydroxymegastima-4,7-dien-3-one, and vomifoliol glucosides and arabinoglucosides) were tentatively identified.