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Gas chromatographic determination of propionic acid in bread and cake
Journal - Association of Official Analytical Chemists
|March 1, 1981
Abstract:
A simple and accurate method is presented for gas-liquid chromatographic (GLC) determination of propionic acid in bakery products. Propionic acid is extracted with a mixture of dichloromethane and formic acid to which isobutyric acid has been added as an internal standard. The extract is injected directly into the GLC system. A glass column packed with 5% SP-1000 is used. The simplicity and convenience of the method make it suitable for routine determination.