Course Content (Syllabus)
ΤΧΝ 703 Advanced Food Microbiology
Food protection and some properties of psychrotrophs and thermopliles. Osmoregulation. Microbial response to combined factors affecting food safety (hurdle effect). Microbial food spoilage. Food protection with emerging technologies and minimally processed foods. Starter, probiotic and protective cultures. Determining microorganisms by molecular methods. Case studies in food microbiology.
Course syllabus
1. Food spoilage microorganisms
2. Microbial interference - Quorum sensing- Biofilm formation in food environment
3. Heat resistant microorganisms - Spores and their significance – Thermophilic microorganisms
4. Osmoregulation – Osmophilic yeasts – Chemical preservatives in foods with low water activity
5. Microbial safety of fresh produce - Food sanitizers (ozone, hydrogen peroxide, chlorines, chlorine dioxide, electrolyzed oxidizing water etc.)
6. Chitosans and hydrolytic enzymes as antimicrobial agents
7. Aseptic Processing of Foods
8. Hurdle concept – Microbiology of Refrigerated Processed Foods of Extended Durability (REPFED) - Surface pasteurization
9. Fermented foods – Starter cultures – Probiotics – Protective cultures
10. Microbiology of minimally processed foods
11. Food protection with emerging non-thermal technologies
12. Microbial detection by Real-Time PCR
13. Case studies in food microbiology