A sensitive, specific and rapid chromatographic procedure to determine benzoic and sorbic acids in different food products is described. The two antimicrobials were extracted from the food by using a microdialysis probe connected on-line to an HPLC column that allows separation of benzoic and sorbic acids revealed by a UV detector at 228 and 260 nm, respectively. The procedure was linear from 1 to 80 ppm, with a detection limit of 1 ppm for sorbic acid and 2 ppm for benzoic acid. The assay was successfully applied to non-alcoholic beverages and milk based products.
Determination of benzoic and sorbic acids in food by microdialysis sampling coupled with HPLC and UV detection / S. Mannino, M.S. Cosio. - In: ITALIAN JOURNAL OF FOOD SCIENCE. - ISSN 1120-1770. - 8:4(1996), pp. 311-316.
|Titolo:||Determination of benzoic and sorbic acids in food by microdialysis sampling coupled with HPLC and UV detection|
MANNINO, SAVERIO (Primo)
COSIO, MARIA STELLA (Ultimo)
|Parole Chiave:||Benzoic and sorbic acids; Food; High-performance liquid chromatography; Microdialysis sampling|
|Settore Scientifico Disciplinare:||Settore AGR/15 - Scienze e Tecnologie Alimentari|
|Data di pubblicazione:||1996|
|Appare nelle tipologie:||01 - Articolo su periodico|