Impact of β-casein variants on the formation of β-casomorphins in blue cheeses: Investigating key drivers through peptidomic analysis
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View abstract on PubMed
Summary
This summary is machine-generated.This study found beta-casomorphins (BCMs) like BCM7 in blue cheeses from A1 and A2 milk. Proteolysis by Penicillium roquefeforti exopeptidases drives BCM release in these cheeses.
Area Of Science
- Food Science
- Biochemistry
- Dairy Science
Background
- Beta-casomorphins (BCMs) are opioid-like peptides derived from beta-casein (β-CN) proteolysis.
- BCMs have garnered interest due to their potential physiological effects.
- Understanding BCM formation in fermented dairy products is crucial.
Purpose Of The Study
- To detect BCM7, BCM6, and BCM5 in various blue cheeses.
- To elucidate the formation mechanisms of BCMs from β-CN A1 and A2 variants.
- To investigate the role of Penicillium roqueforti exopeptidases in BCM release.
Main Methods
- Analysis of blue cheeses (Bleu d'Auvergne, Gorgonzola, Stilton, Bergader) using nanoLC-ESI-Q-Orbitrap-MS/MS.
- Application of advanced computational tools for peptidome exploration.
- Characterization of milk β-CN variants (A1 and A2).
Main Results
- BCM7 was detected in all analyzed blue cheese samples, with varying concentrations.
- Proteolysis leading to BCM7 release was evident in cheeses from both β-CN A1 and A2 milk.
- The concerted action of multiple P. roqueforti exopeptidases was identified as a key factor in BCM7 formation.
Conclusions
- BCM7, BCM6, and BCM5 are formed in diverse blue cheese types.
- Specific molecular determinants influence BCM release from β-CN variants.
- A complex interplay exists between mold peptidases and cheese substrates during BCM production.
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