Changes in furosine and proteins of UHT-treated milks stored at high ambient temperatures
- 1 April 1994
- journal article
- research article
- Published by Springer Nature in European Food Research and Technology
- Vol. 198 (4) , 302-306
Abstract
Changes in furosine, undenatured whey protein content, and proteolysis during 90 days storage at 20, 30, and 40° C of UHT-processed milk were studied. Furosine increased as the temperature and storage time increased. The peptide concentration increased during the storage period, being faster at 30° C than at 20 or 40° C. High-performance liquid Chromatographic analysis of undenatured whey proteins showed considerable changes in the shape of the peaks during storage. Uperisierte Milch wurde bei 90 Tage-Lagerung bei 20, 30, bzw. 40 °C auf Veränderungen im Furosingehalt, im Gehalt nicht denaturierter Molkenproteine und der Proteolyse untersucht. Mit höherer Temperatur und Lagerzeit hat das Furosin zugenommen. Die Peptidkonzentration hat während der Lagerung bei 30 °C stärker als bei 20 oder 40 °C zugenommen. Die Hochleistungsflüssigchromatographie-Analyse der nicht denaturierten Molkenproteine zeigte wesentliche Veränderungen der Peakformen während der Lagerung.Keywords
This publication has 11 references indexed in Scilit:
- Application of reversed-phase HPLC to the study of proteolysis in UHT milkJournal of Dairy Research, 1993
- Determination of furosine in milk samples by ion-pair reversed phase liquid chromatographyChromatographia, 1992
- Effect of Storage Temperature on Age Gelation of Ultra-High Temperature Milk Processed by Direct and Indirect Heating SystemsJournal of Dairy Science, 1986
- Origine, nature et incidences technologiques de la protéolyse dans le laitLe Lait, 1986
- Maillard Browning of Common Amino Acids and SugarsJournal of Food Science, 1984
- Proteinases in normal bovine milk and their action on caseinsJournal of Dairy Research, 1983
- Presence and Activity of Psychrotrophic Microorganisms in Milk and Dairy Products: A ReviewJournal of Food Protection, 1982
- Development of Off-Flavors in Ultra-High Temperature and Pasteurized Milk as a Function of ProteolysisJournal of Dairy Science, 1981
- Enzymes of psychrotrophic bacteria and their effects on milk and milk productsJournal of Dairy Research, 1979
- Identification of a new lysine derivative obtained upon acid hydrolysis of heated milkCellular and Molecular Life Sciences, 1968