Functionality of enterococci in dairy products

Area of Science:

• Dairy Microbiology
• Food Science
• Bacteriology

Background:

• Enterococci are nonstarter lactic acid bacteria (NSLAB) found in various cheeses, particularly artisan types.
• They contribute to cheese sensory characteristics through lipolytic activity, citrate utilization, and aromatic compound production.
• Dairy enterococci can produce bacteriocins (enterocins) with antimicrobial properties against foodborne pathogens.

Purpose of the Study:

• To explore the technological applications of enterococci in the dairy industry.
• To highlight the role of enterococci in cheese ripening and starter cultures.
• To review the potential of enterococci as adjunct starters or protective cultures.

Main Methods:

• Literature review on the biochemical and ecological roles of enterococci in dairy products.
• Analysis of enterococci's contribution to cheese sensory development.
• Examination of bacteriocin production by dairy enterococci.

Main Results:

• Enterococci positively influence cheese flavor and texture during ripening.
• Enterococci exhibit beneficial biochemical traits like lipolysis and citrate utilization.
• Enterococci produce enterocins, which inhibit spoilage and pathogenic bacteria, suggesting their use as protective cultures.

Conclusions:

• Enterococci offer significant technological advantages in cheesemaking and fermented dairy products.
• Further research is required to elucidate the complex mechanisms behind enterococci's functionality.
• The safety of incorporating enterococci into dairy products necessitates careful consideration and investigation.