Normal view MARC view ISBD view

Chirality of 2-(4-Methoxyphenoxy) propanoic acid in roasted coffee beans: analysis of the methyl esters by chiral high-performance liquid chromatography

by Rathbone, E.B; Butters, R.W; Cookson, D; Robinson, J.L.
Publisher: Ene-Feb 1989Subject(s): CAFE TOSTADO | COMPOSICION | ACIDO PROPIONICO | COMPUESTOS ORGANICOS | ANALISIS QUIMICO | CROMATOGRAFIA LIQUIDA ALTA PRESION | ESTERES | PROPIONIC ACID | ORGANIC COMPOUNDS | HIGH PRESSURE LIQUID CHROMATOGRAPHY | ESTERS | ACIDE PROPIONIQUE | COMPOSE ORGANIQUE | CHROMATOGRAPHIE LIQUIDE HAUTE PRESS | ESTER In: Journal of Agricultural and Food Chemistry (EUA) v. 37 p. 58-60Summary: Methyl 2-(4-methoxyphenoxy) propanoate, previously shown to be present in methylated aqueous extracts of roasted Colombian Arabica coffee beans, was purified by reversed-phase high-performance liquid chromatography (HPLC) with a Chromspher C18 column (250 x 4.6 mm). The purified extract was analyzed by chiral HPLC with a Chiralcel OK column (250 x 4.6 mm), which provided excellent separation of the two enantiomers of the ester. The methyl 2-(4-methoxyphenoxy) propanoate in the methylated coffee extract was shown to be composed of predominantly (80 percent) the (S)-(-) enantiomer
    average rating: 0.0 (0 votes)
No physical items for this record

++ 5 ref. Sum. (En)

Methyl 2-(4-methoxyphenoxy) propanoate, previously shown to be present in methylated aqueous extracts of roasted Colombian Arabica coffee beans, was purified by reversed-phase high-performance liquid chromatography (HPLC) with a Chromspher C18 column (250 x 4.6 mm). The purified extract was analyzed by chiral HPLC with a Chiralcel OK column (250 x 4.6 mm), which provided excellent separation of the two enantiomers of the ester. The methyl 2-(4-methoxyphenoxy) propanoate in the methylated coffee extract was shown to be composed of predominantly (80 percent) the (S)-(-) enantiomer

Click on an image to view it in the image viewer