Biotechnology of Fermented Foods and Beverages

Course objectives

General skills. The course is designed to provide an understanding of the principles of food microbiology and food biotechnology (6 credits). The main focus is a detailed analysis of the quality of raw materials and the biotechnological processes involving the use of microorganisms. The course will cover the ecophysiology and control of food microorganisms. It will also explore the influence of fermentation processes—whether spontaneous or using selected starter cultures—on the nutritional, functional, technological, and sensory properties of foods and beverages. These topics will be discussed in the context of key agri-food supply chains, including wine, dairy, bakery, fermented meat, and fermented vegetables. Specific Skills a) Knowledge and Understanding Knowledge of the main microbiological aspects related to raw materials used in the agri-food sector, including the criteria for the selection and application of microbial starters, as well as the main biotechnological approaches for producing high-quality foods and beverages. b) Applying Knowledge and Understanding Ability to independently identify and apply appropriate biotechnological methods for food processing, hygiene, and safety within various agri-food production contexts. c) Making Judgments Ability to evaluate and propose biotechnological strategies aimed at achieving desired quality standards—organoleptic, technological, hygienic, and nutritional—in fermented food products. d) Communication Skills Ability to effectively communicate the role and significance of microorganisms, as well as the objectives of biotechnological processes, in the control and transformation of raw materials into food products that meet specific quality requirements. e) Learning Skills Ability to independently update and deepen knowledge of food biotechnological processes through the study of scientific literature in the microbiological field, with particular attention to applications in oenology, dairy production, leavened baked goods, fermented meats, and vegetables.

Channel 1
CARLO GIUSEPPE RIZZELLO Lecturers' profile

Program - Frequency - Exams

Course program
1- Ecophysiology of microorganisms: intrinsic and extrinsic factors affecting microbial growth. Stress response. 2- Control of microorganisms in food: chemicals, radiation, low and high temperatures, drying and filtration. 3. Microbial starters and fermented foods: metabolic traits and selection criteria (lactic acid bacteria, yeasts, natural starters)   3. Traditional and innovative biotechnological applications in food supply chains: - oenology, - dairy products, - baked goods, - fermented meat, - fermented vegetables, - functional foods and probiotics.
Prerequisites
Basic knowledge of biochemistry and microbiology.
Books
- Appunti di lezione e materiale didattico fornito dal docente; - Farris, Gobbetti, Neviani, Vincenzini. Microbiologia dei prodotti alimentari, Casa Editrice Ambrosiana (2012); - Microbiology and Technology of Fermented Foods di Robert W. Hutkins, IFT press
Frequency
Classroom lectures and laboratory exercises.
Exam mode
The evaluation consists of a final exam (a mixed test with multiple-choice and open-ended questions). In the final assessment, the committee verifies that the student has achieved the course objectives, has a comprehensive understanding of the subject, and can use appropriate and specific language.
Lesson mode
Frontal teaching in classroom
  • Lesson code10616878
  • Academic year2025/2026
  • CourseBiochemistry
  • CurriculumSingle curriculum
  • Year2nd year
  • Semester1st semester
  • SSDAGR/16
  • CFU6