Products Derived from Alcoholic Fermentation
Code: 103227 ECTS Credits: 3| Degree | Type | Year |
|---|---|---|
| 2501925 Food Science and Technology | OT | 4 |
Contact
- Name:
- Jordi Saldo Periago
- Email:
- jordi.saldo@uab.cat
Teachers
- Joan Josep Gallardo Chacon
- (External) Sergi Pelayo Martínez
Teaching groups languages
You can view this information at the end of this document.
Prerequisites
There are no prerequisites for this subject. There is a limitation on the number of students to 36 people. The selection will be based on the number of credits passed and the academic record
Objectives and Contextualisation
The products derived from alcoholic fermentation are widely represented in many cultures around the world, and are commonly consumed. Products that retain a high ethanol content in their final form are usually consumed only by the adult population. There are, however, others for which alcoholic fermentation is only an intermediate stage before producing the final product (bread, vinegars ...).
Within the subject, the wine industry will be taken as a backbone of the theoretical classes and as a thread of the processes used in other products. The other two products also important in our environment, beer and cider, will be covered more seriously. Other auxiliary topics will be developed through work carried out by students.
The objective is for students to know this industry, which is very important in the Mediterranean environment, and to develop relationships with industrial processes, biochemical changes and microbiological processes that they have studied in previous years.
Competences
- Apply knowledge of the basic sciences to food science and technology.
- Apply the principles of processing techniques and evaluate their effects on the quality and safety of the product.
- Develop individual learning strategies and planning and organisation skills.
- Identify pathogenic, spoilage, and industrially-useful microorganisms, along with the conditions that are favourable or unfavourable to their growth in foods and in industrial and biotechnological processes.
- Search for, manage and interpret information from different sources.
- Show understanding of the mechanisms by which raw materials deteriorate and the reactions and changes that take place during storage and processing, and apply the methods for controlling this.
- Use IT resources for communication, the search for information within the field of study, data processing and calculations.
Learning Outcomes
- Apply the technological processes that are specific to milk and dairy products, meat and meat derivatives, fish products, egg products and vegetable products, and understand the modifications to the final product that these processes make.
- Describe the processes of spoilage and deterioration of foods.
- Design complex processes in accordance with the established quality criteria.
- Develop individual learning strategies and planning and organisation skills.
- Foresee and solve problems that are specific to the food industries.
- Recognise the importance of fermentation processes and appreciate the role of microorganisms in industrial processes.
- Relate the characteristics of foods to their physical properties.
- Search for, manage and interpret information from different sources.
- Select processes of conservation, transformation, transport and storage that are suited to foods of animal and plant origin.
- Use IT resources for communication, the search for information within the field of study, data processing and calculations.
Content
Expositive-participatory classes
- Raw materials
- Grape
- Cereals
- Prefermentative operations
- Grapes pressing
- Conversion of starch into sugars (endogenous enzymes or co-culture with fungi)
- Agents of fermentation
- Yeasts
- Conversion of sugars
- Effect of temperature
- Maturation and ageing
- Evolution and ageing
- Modifications carried out by bacteria
Practical classes
- Brewing
- Sensory analysis of wines and beers
- Visits to producers
Activities and Methodology
| Title | Hours | ECTS | Learning Outcomes |
|---|---|---|---|
| Type: Directed | |||
| Expositive lectures | 10 | 0.4 | 1, 2, 6, 9 |
| Laboratory practical sessions | 9 | 0.36 | 1, 4, 3, 5, 6, 7, 9 |
| Visites | 5 | 0.2 | 3, 6, 9 |
| Type: Supervised | |||
| Mentoring | 5 | 0.2 | 4, 6 |
| Type: Autonomous | |||
| Preparation and development of the extension of the syllabus the form of wikis | 16 | 0.64 | 8, 4, 10 |
| Preparation of reports of practical sessions and visits | 13 | 0.52 | 4 |
| Self-study work | 13 | 0.52 | 4 |
The methodology used in this subject to achieve the learning process is based on making the student work the information that is available to him. The function of the teacher is to give him the information or tell him where he can get it, help him and tutor it so that the learning process can be carried out effectively. To achieve this goal, the subject is based on the following activities:
Expositive lectures
The content of the theory program will be given by the teaching team in the form of expository classes. The theoretical classes will be complemented with the visualization of animations and videos related to the subjects treated in class. The visual aids used in class by the teacher will be available on the Virtual Campus. It is recommended that students print this material and take it to class to use it as a support when taking notes. Although it is not essential to extend the contents of the classes taught by the teacher unless expressly requested by the latter, it is advised that students regularly consult the books recommended in the Bibliography section in order to consolidate and clarify, if necessary, the contents explained in class.
With these lectures, the student acquires the basic scientific-technical knowledge of the subject that must complement with the personal study of the subjects explained.
Laboratory practices
The students will go to the practical sessions with the script. A brief questionnaire will be made at the beginning of the session to validate that the students read the instructions previously. We want to enhance the development of planning skills, observation and manual skills. Students will be taught in the handling of processing and control equipment and devices, learning to record their observations and discoveries, evaluating the results and discovering the links between theory and experimental work
After the practice session, the students will prepare a collective report for each group of work in the laboratory.
Mentoring
The tutorial sessions aim to direct and help the student in their training. Tutoring hours will be used to resolve doubts about the contents of the subject. Students can take the tutorials to ask questions, comment or raise doubts that have emerged throughout the course.
Annotation: Within the schedule set by the centre or degree programme, 15 minutes of one class will be reserved for students to evaluate their lecturers and their courses or modules through questionnaires.
Assessment
Continous Assessment Activities
| Title | Weighting | Hours | ECTS | Learning Outcomes |
|---|---|---|---|---|
| Delivery of reports of laboratory practices (group activity) | 25% of global evaluation | 0.5 | 0.02 | 4 |
| Elaboration of materials in the form of a short video (group activity) and qualification of the subjects elaborated by the other groups (individual activity). The video activity is divided into 3 steps: information research, script development, and video | 40% of global evaluation | 2.5 | 0.1 | 8, 4, 3, 5, 6, 10 |
| Final exam (individual evaluation) | 35% of global evaluation | 1 | 0.04 | 1, 2, 3, 5, 6, 7, 9 |
In order to be able to choose to be evaluated on the subject, it will be necessary to have attended the practical sessions. Non-attendance is allowed for one practical session as a maximum. Visits do not count within this compulsory nature.
The grade of the subject will be obtained from the weighted average of the following activities of continuous evaluation:
- Final written exam. It will include the subjects presented in the expositive classes and the subjects prepared by the students and available for study through the Virtual Campus of the subject (35%)
- Reports of practices and visits (25%)
- Themes developed by students. The material prepared by the group (30%) and the evaluations made in the subjects prepared by the other groups (10%) will be described.
It is considered that a student is not evaluable if he has not participated in evaluation activities that represent ≤ 15% of the final grade.
In the event that a student enrols for the second time in the subject, they will have to go back to doing the written examination activity and the development of specific topics. The repetition of visits and practices is optional, and the student may decide to retain the qualification obtained in the previous enrollment.
This subject cannot be evaluated through a single evaluation.
Bibliography
- Bamforth, C. W. (2009). Beer: a quality perspective. Academic Press. https://doi.org/10.1016/B978-0-12-669201-3.X0001-2
- Bamforth, C. W. (Ed.). (2016). Brewing materials and processes: a practical approach to beer excellence. Elsevier Inc. https://www.sciencedirect.com/science/book/9780127999548
- Dougherty, P. H. (2012). The geography of wine: regions, terroir and techniques. Retrieved from https://link.springer.com/book/10.1007%2F978-94-007-0464-0
- Gamero, A., Ferreira, V., Pretorius, I. S., & Querol, A. (2014). Wine, Beer and Cider: Unravelling the Aroma Profile. In Molecular Mechanisms in Yeast Carbon Metabolism (pp. 261–297). Berlin, Heidelberg: Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-55013-3_10
- Grainger, K., & Tattersall, H. (2016). Wine Production and Quality. Chichester, UK: John Wiley & Sons, Ltd. https://doi.org/10.1002/9781118934562
- Hughes, P. S., & Baxter, E. D. (2007). Beer: Quality, Safety and Nutritional Aspects. Cambridge: Royal Society of Chemistry. https://doi.org/10.1039/9781847550224
- König, H., Unden, G., & Fröhlich, J. (2017). Biology of Microorganisms on Grapes, in Must and in Wine. Retrieved from https://link.springer.com/book/10.1007%2F978-3-319-60021-5
- Waterhouse, A. L., Sacks, G. L., & Jeffery, D. W. (2016). Understanding Wine Chemistry. Chichester, UK: John Wiley & Sons, Ltd. https://doi.org/10.1002/9781118730720
Software
It will be necessary to use some office automation package to elaborate the works that the teachers commission. The contents will be conveyed through the Virtual Campus of the subject.
In case it is necessary to do synchronous activities remotely, the Teams platform will be used, where students must access using their institutional e-mail.
Language list
| Name | Group | Language | Semester | Turn |
|---|---|---|---|---|
| (PLAB) Practical laboratories | 1 | Catalan | first semester | morning-mixed |
| (PLAB) Practical laboratories | 2 | Catalan | first semester | morning-mixed |
| (TE) Theory | 1 | Catalan | first semester | afternoon |