- Docente: Luigi Grazia
- Credits: 6
- SSD: AGR/16
- Language: Italian
- Teaching Mode: Traditional lectures
- Campus: Bologna
- Corso: First cycle degree programme (L) in Animal production and control of wildlife (cod. 0875)
Learning outcomes
The student knows the principles of biology of microorganisms, has elements of soil microbiology, knows food and feed fermentation (silage), as well as basis of food hygiene. In particular, the student is able to handle the elements of dairy and meat microbiology.
Course contents
Overview of the microbes : Microbes and the natural cycle
of organic matter. Procaryotic cell: morphology and structure.
Multiplication. Pure culture. Microbes and environment: action of
temperature, pH, salt concentration, sugar concentration,
radiation, gas pressure, oxygen. Respiration and fermentation.
Nutrition of microbes: nutrient media. Antiseptics and antibiotics:
mechanisms of action. Microbial enzymes.
Autolysis: Immobilization of cells and enzymes.
Virus: Bacteriophages
Classification of bacteria : history, Bergey's
classification. The current classification of the main microbial
groups and genera interesting animal production.
Useful bacteria : Kocuria, Staphylococcus, Lactic acid
bacteria, Propionic acid bacteria, Bifidobacteria.
Spoilage bacteria: Pseudomonas, Enterobacteria,
Butyric acid bacteria
Toxigenic and pathogenic bacteria : Campylobacter,
Brucella, Mycobacterium tuberculosis, Listeria, Staphylococcus,
Yersinia, Clostridium.
Soil microorganisms : nitrogen cycle and nitrogen
fixation.
Yeasts, mould and mycotoxins .
Fermented foods: Preservation by fermentation of food and
feed.
Silage
Fermented meat and dairy products (fermented milk and
cheese): preparation of raw materials, role of microorganisms, use
of starter cultures.
Readings/Bibliography
Brock, Madigan M.T., Martinko J.M., Parker J.2007 – BIOLOGIA DEI MICRORGANISMI. Vol.1 Microbiologia generale. Casa Editrice Ambrosiana,Milano
Notes of the lessons
Teaching methods
Next to the topics treated during the frontal lessons, visits of study, eventually seminars with external teachers as well as participation to conferences are expected.
Assessment methods
Oral test
Teaching tools
Microbiology laboratory
Office hours
See the website of Luigi Grazia