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Dairy, Volume 4, Issue 1

2023 March - 17 articles

Cover Story: Lately, concern about the protease AprX has increased due to its ability to survive UHT treatment and spoil UHT milk. Efficient prediction methods for UHT milk spoilage are currently lacking. The present study aimed to gain more insight into the variability between Pseudomonas strains regarding proteolytic potential. The variability in aprX expression levels in four Pseudomonas strains were related to physical stability, milk proteolysis and peptidomic cleavage patterns of milk proteins. A positive relationship was observed between the relative expression of aprX and milk proteolysis during storage. The peptide formation analysis showed a similar protein hydrolysis pattern between strains and high hydrolysis of αs1-caseins during long-term spoilage putatively due to the activity of AprX was observed. View this paper
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Dairy - ISSN 2624-862X
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