Universidad de Jaén

THEORY:

1.-Introduction to the Physical Chemistry of Foods.

Fresh and processed foods. Alteration of food. Stabilization, conservation, characterization, prediction and control of life in food. Revision of thermodynamic concepts: heat and power, diagrams of phases and compressibility, equation of Clapeyron, wet and overheated vapors, absolute and relative humidities.

2.-Physicochemical properties of food main components.

Proteins: Isoelectric point and osmotic pressure. Denaturation processes. Structure and function. Carbohydrates (polysaccharides). Fats (lipids). Vitamins: stability, causes of variations and losses, fat-soluble and water-soluble vitamins. Minerals: nutritional and toxicological aspects. Recommended intakes.

3.-Water in foods.

Physical and chemical properties of the water. Importance of water on food stability. Phase diagram of water and Clapeyron equation. The water activity in foods: determination methods. Adsorption isotherms. State of water in food. Hysteresis cycle. Influence of temperature and the composition and physical state of food.

4.-Foods kinetic deterioration.

Food general modes deterioration: microbial decomposition, senescence, enzymatic chemical deterioration, non-enzymatic processes (Maillard reaction), lipid oxidation (rancidity), loss of vitamins. General approach of the kinetics food deterioration. Stability based on water activity.

5.-Foods physicochemical treatment.

Energy transfer in food processing (heat capacity, specific heat, latent heat, conduction, convection). Stabilization through thermal methods: sterilization and pasteurization. Decreased activity of water stabilization: freezing, dehydration and freeze-drying. Stabilization by irradiation: microwave and infrared radiation.

6.-Physicochemical chracterization of food additives.

Additives in foods. Acids and bases. Chelating agents. Antioxidants. Antimicrobial. Sweeteners. Dyes: legislation, types, and properties.

7.-Foods rheology.

Viscosity. Rheograms. Influence of temperature. Types of viscosities: absolute and kinematic.  Effect of the presence of solutes in the viscosity. Non-Newtonian fluids (independent and time dependent). Viscosity measurements. Viscosities of some foods. Rheology of solids.

PRACTICES:

-Refraction index determinations. Application to protein determination and vegetable oils identification.

-Phosphoric acid Physicochemical characterization like food additive. Determination of the acid constants.

-Absorption molecular spectroscopy. Application to vitamins determination in food samples.

-Color determination in foods. Physicochemical characterization of natural colorants in foods and drinks.

-Viscosity determination in food samples. Application to commercial juices and wines.

-Beer physicochemical characterization: pH and total acid content determination.

-Visit to a food company.  

During the development of the subject, the teacher will describe the subject contents and he will answer the questions proposed in the English language, in standar class and during the corresponding schedule of students tutorials.

In addition the teacher will provide the bibliographic references and other materials in relation with the course (problems, articles, images, ...) in English language.

Teacher will allow students the use of English language for questions and deliver jobs and other materials.Also there will be periodic seminars (at least two per month) in English language to complement the development of standar classes in English.

Students with special educational needs should contact the Student Attention Service (Servicio de Atención y Ayudas al Estudiante) in order to receive the appropriate academic support

-Written exam about the theoretical contents develop and some problems similars to those resolved during the course.

-Practice and Oral exam about laboratory experiments. It is necessary in order to know the level of the practice contents asimilated during the course by the students.

1.-TEACHING METHODOLOGY AND TRAINING ACTIVITIES:

For the development of theory and problem classes, as well as laboratory practices, multimodal or mixed teaching will be used.

Attending the last years the courses have consisted of groups of students below the limited capacity in the classroom (classroom A-12, maximum capacity of 16 students) and Chemistry laboratory L-041 (maximum capacity of 16 students). These maximum permitted capacity data have been provided by the occupational risk prevention service of the University of Jaén.

If the number of students enrolled in the 2021-2022 academic year exceeds the permitted capacity, the guide would be modified in the corresponding sense to meet the corresponding adaptation criteria.

In this way, the following activities are proposed.

Activity 1.1.- 7 practical sessions in specialized laboratories. Format: 100% face-to-face. 7 practical sessions of two hours each are carried out in the corresponding laboratories.

Activity 1.2.- Theory sessions on the contents of the program. Format: 100% face-to-face. 32 sessions of participatory master classes will be held, lasting one hour each, held in the corresponding classroom.

Activity 1.3.- Problem solving sessions. Format: 100% face-to-face. They will consist of 14 face-to-face sessions of one hour each, to be developed in the corresponding classroom.

Activity 1.4.- Tutorships.

In format: face-to-face and online. Some tutorials will be done in person and others online (synchronous and asynchronous)

2.-EVALUATION SYSTEM.

2.1.-Ordinary call.

It will be carried out through continuous evaluation in face-to-face format using the following tests:

Delivery and correction of all the problems of the subject (30%), delivery-presentation of works (15%), delivery-presentation of seminars (15%), attendance to classes and individualized questions during the development of the same (10%) ) and delivery-correction of the laboratory practice notebook (30%).

2.2.-Extraordinary call.

Written exam in face-to-face format. A part corresponding to theory questions about the temary and laboratory practices (65%) and another part corresponding to problems (35%)

3.-RESOURCES.

The face-to-face classes on Theory and Problems will be developed using different materials such as documents in different formats (Word, powerpoint, pdf, videos, etc ...)

The laboratory classes will be developed directly in the laboratory and a laboratory practice notebook must be prepared and delivered for its corresponding evaluation.

  Privacy clause:
Where appropriate, the teaching staff involved in the teaching of this subject reserves the right not to give consent for the capture, publication, retransmission or reproduction of their speech, image, voice and professorial explanations, in the exercise of their teaching duties, within the scope of the University of Jaén.

1.-TEACHING METHODOLOGIES AND TRAINING ACTIVITIES

For the development of theory classes and problems, as well as laboratory practices, online teaching will be used.

Activity 1.1.-   7 practical sessions in specialized laboratories. Format: online. The 7 practical sessions are replaced by online training activities: viewing videos, performing the corresponding calculations, preparing the graphs and analyzing the results obtained. There will be 7 practical sessions of 2 hours each

Activity 1.2.- Theory sessions on the contents of the program. Format: online. There will be 32 sessions of participatory master classes, one hour each, conducted by videoconference.

Activity 1.3.- Problem solving sessions. Format: online. They will consist of 14 online sessions synchronously, lasting one hour each.

Activity 1.4.- Tutorships.

Format: online. All online tutoring sessions will be held (synchronous and asynchronous)

2.-EVALUATION SYSTEM.

2.1.-Ordinary call. It will be carried out through continuous evaluation using the following tests: Delivery and correction of all the problems of the subject (30%), delivery-presentation of works (15%), delivery-presentation of seminars (15%), attendance to classes and individualized questions during the development of the same (10%) ) and delivery-correction of the laboratory practice notebook (30%).

2.2.-Extraordinary call. Online exam. Questions about the theory syllabus (35%), problems (35%) and laboratory practices (30 %).

3.-RESOURCES.

Theory and Problems online classes will be developed using the google-meet platform and as support different documents in different formats (Word, powerpoint, pdf, videos, etc)

The laboratory classes have been developed through a virtual laboratory for which different resources have been prepared (new practical notebook adapted to online teaching, Word files, power point, pdf, videos, etc ...) for monitoring and preparation of each of the practices proposed in the subject.

  Privacy clause:
Where appropriate, the teaching staff involved in the teaching of this subject reserves the right not to give consent for the capture, publication, retransmission or reproduction of their speech, image, voice and professorial explanations, in the exercise of their teaching duties, within the scope of the University of Jaén.

Institution in charge of data processing: Universidad de Jaén, Campus Las Lagunillas, s/n, 23071 Jaén

Data Protection Delegate: dpo@ujaen.es

Purpose: In accordance with the Universities Law and other national and regional regulations in force, carrying out exams and assessment tests corresponding to the courses students are registered in. In order to avoid frauds while sitting the exam, the exam will be answered using a videoconference system, being able the academic staff of the University of Jaén to compare and contrast the image of the person who is answering the exam with the student's photographic files. Likewise, in order to provide the exam with evidential content for revisions or claims, in accordance with current regulation frameworks, the exam will be recorded and stored.

Legitimacy: compliance with legal obligations (Universities Law) and other national and regional regulations currently in force.

Addressees: service providers who are the owners of the platforms where the exams are carried out and with whom the University of Jaén has signed the corresponding data access contracts.

Storage periods: those established in current in force regulations. In the specific case of exam videoconference recordings, not before the examination records and transcripts are closed or the exam can still be reviewed or challenged.

Rights: you can exercise your right of access, amendment, cancellation, opposition, suppression, limitation and portability by sending a letter to the postal or electronic address indicated above. In the event that you consider that your rights have been violated, you may submit a complaint to the Andalusian Council for Transparency and Data Protection www.ctpdandalucia.es

Person in charge: Universidad de Jaén, Paraje Las Lagunillas, s/n; Tel.953 212121; www.ujaen.es

Data protection delegate (DPO): TELEFÓNICA, S.A.U. ; Email: dpo@ujaen.es

Procedure aim: To manage proper recordings of teaching sessions with the aim of facilitating learning process under a multimodal and/or online teaching

Period for record storage: Images will be kept during legal term according to regulations in force

Legitimacy: Data will be managed according to legal regulations (Organic Law 6/2001, December 21, on Universities) and given consent provided by selecting corresponding box in legal admission documents

Data recipients (transfers or assignments): Any person allowed to get access to every teaching modality

Rights: You may exercise your rights of access, rectification, cancellation, portability, limitation of processing, deletion or, where appropriate, opposition. To exercise these rights, you must submit a written request to the Information, Registration and Electronic Administration Service of the University of Jaen at the address above, or by e-mail to the address above. You must specify which of these rights you are requesting to be satisfied and, at the same time, you must attach a photocopy of your ID card or equivalent identification document. In case you act through a representative, legal or voluntary, you must also provide a document that proves this representation and identification. Likewise, if you consider that your right to personal data protection has been violated, you may file a complaint with the Andalusian Data Protection and Transparency Council www.ctpdandalucia.es