CHEMISTRY OF FOOD AND DIET PRODUCTS WITH NUTRACEUTICAL ELEMENTS

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ANDREA SALVO Lecturers' profile

Program - Frequency - Exams

Course program
The course includes a general part and a special part. In the general part, introductory concepts regarding the chemical composition of food and food safety are carried out. It is also highlighted the importance of a good diet for the well-being of persons and the existence of pathologies linked to the intake of specific nutrients. In the special part some selected foods are treated highlighting their chemical composition, the health effects given by specific components and the analyses that are carried out to ensure authenticity and quality. The articulation in the various topics is deeply interconnected, since the description of the foods in the special part will refer to the chemical composition, to the health properties or to the presence of problems related to the nutrients intake reported in the general part. However, an articulation of the various themes can be foreseen in the following number of hours (approximate values): point 1 = 30 hours; point 2 = 34 Compatibly with the needs of in-depth study presented by the students in the classroom, it is possible to foresee an articulation of the various themes in the following number of orientation hours: point 1 = 30 hours; point 2 = 34 hours GENERAL PART Foods and nutrients. Essential nutrients. Classifications of nutrients. Nutritional balance. Energy needs. Basal metabolism. Dietary guidelines. The recommended levels of intake of various nutrients for different age groups. Concept of alteration, adulteration and sophistication. Foodstuffs Labeling. Quality and authenticity. Genetically Modified Foods. Biological agriculture. Carbohydrates. Classification and role. Structure and chemical-physical properties of the main monosaccharides, disaccharides and polysaccharides. Reactivity. Enzymes involved in the carbohydrate chemistry. Sweet taste substances: sweetening power and notes on the receptive theories. Natural and synthetic sweeteners. Dietary products for people with disorders in the carbohydrate metabolism (lactase deficiency, galactosemia, fructosemia). The fiber. Definition. Soluble fiber and insoluble fiber. Prebiotics and Probiotics. Functional properties of prebiotic and probiotic foods. Lipids. General aspects, classes of compounds. Nomenclature, diffusion and physico-chemical properties of saturated, monounsaturated and polyunsaturated fatty acids. Maltodextrins. Biological and nutritional role of lipids. Modifications induced in lipids from oxygen, light, heat, biocatalysts, etc. Evaluation of the conservation status of lipids. Protein. Natural amino acids: nomenclature and structural classification. Physical properties and main reactivity. Essential amino acids. Limiting amino acid. Protein quality. Protein classes in foods and protein sources. Kjeldahl method. Determination of the amino acid sequence. Maillard reaction. Dietetic products for celiac disease. Vitamins: Structure, main food sources, stability, biological function, absorption and quantitative determination of hydro- and liposoluble vitamins. Inorganic component Main food sources Water as food. Chemical-physical characteristics of water and properties of foods containing water. Water classification in food (total, free and bound). Water activity. Influence of water activity on food stability. Water intended for human consumption. Drinking water. Mineral waters. Food Additives. Classification and requirements, Legislative aspects. Stabilizers. Antimicrobials. Natural and synthetic emulsifiers .. Analytical methods in Food Analysis. Conventional methods and advanced methodologies. SPECIAL PART Cereal and Cereal products Generality. Composition of the main cereals. World and Italian cereal production. Wheat. Wheat classes. T. aestivum (common wheat) and T.durum (durum wheat). Structure and composition of wheat kernels. Classification of flour: evaluation methods. Pasta and bread. Bakery products (overview). Rice. Rice species. Treatments made to obtain the commercial product. Vegetable oils and edible fats Olive oils. Composition and classification. Main analyses foreseen by the European regulation for the determination of quality and genuineness. Seed oils, hydrogenated fats and margarine: generality, production and refining technologies. Effects of technological treatments. Composition of the main seed oils. Milk and derivatives Definition. Composition with respect to milk protein and lipid fractions. Defects and alterations. Effect of heat treatments. Regulatory requirements. Milk cream: types and methods of production. Butter. Scheme of burrification processes. Cheese: Definition, historical outline, classification, composition. Transformations in cheese ripening. Maturity coefficient. Laboratory experiences. RECOMMENDED TEXTS L.Mannina, M.Daglia, A.Ritieni: La Chimica e gli Alimenti (Casa Editrice Ambrosiana) P.Cabras-A.Martelli: Chimica degli Alimenti (Piccin). F.Evangelisti e P.Restani: Prodotti Dietetici: chimica, tecnologia e impiego (Piccin)
Prerequisites
The students should have some basics on organic chemistry. In order to better understand some specific concepts (auto and photo oxidation of lipids, reaction between sugars and proteins etc.) and to more easily achieve the learning objectives, it would be important to know the chemical structure of sugars, lipids and proteins. Where the student can not attend the lessons, he/she must absolutely inform himself of what was made available and/or reported by the teacher, as material useful for learning purposes. The above mentioned must not be considered as an indispensable obligation, but as a prerequisite recommended to optimize the successful passing of the exam, to be taken at the end of the course.
Books
L.Mannina, M.Daglia, A.Ritieni: La Chimica e gli Alimenti (Casa Editrice Ambrosiana) P.Cabras-A.Martelli: Chimica degli Alimenti (Piccin). F.Evangelisti e P.Restani: Prodotti Dietetici: chimica, tecnologia e impiego (Piccin) In order to help the student (in terms of method), the integrated distribution of the two recommended texts along the duration of the course could be hypothesized as follows: Text 1 is useful for the general part and special part
Teaching mode
The adopted teaching method provides (for the greater number of hours) lectures. However, students are invited to make reports on current selected topics regarding foods The teaching methods chosen by the teacher contribute not only to the achievement of the planned training objectives, but also allow the student to deal with current important issues
Frequency
Lessons will be held in person.
Exam mode
The actual achievement of the expected learning outcomes by the student, in accordance with the training objectives, is evaluated through an oral exam. Among the aspects that contribute to the formation of the final judgment, beyond the specific preparation of the student on topics of examination, her/his reasoning ability is also assessed, on the basis of the study that it is conducted independently, which should not be based only on the mnemonic abilities. The duration of the test, as an oral one, is difficult to define and depends essentially on the degree of preparation and the relative exhibition skills of the student. An average duration of about 20 minutes is conceivable. The teaching, as established by Manifesto, does not provide for intermediate tests but only a test at the end of the teaching provision. This test has pre-established dates communicated annually to the Secretariats and published via Infostud websites. In any case, the student has the opportunity of a sort of "self-assessment" during the course because "ad hoc moments" of review and questions on the concepts developed are dedicated. To pass the exam it is need to achieve a grade of not less than 18/30. The student must demonstrate that has acquired sufficient knowledge of the general and special topics To achieve a score of 30/30 cum laude, the student must instead demonstrate that has acquired excellent knowledge of all the topics covered during the course and she/he is able to connect them in a logical and coherent way.
Lesson mode
The adopted teaching method provides (for the greater number of hours) lectures. However, students are invited to make reports on current selected topics regarding foods The teaching methods chosen by the teacher contribute not only to the achievement of the planned training objectives, but also allow the student to deal with current important issues
ANDREA SALVO Lecturers' profile

Program - Frequency - Exams

Course program
The course includes a general part and a special part. In the general part, introductory concepts regarding the chemical composition of food and food safety are carried out. It is also highlighted the importance of a good diet for the well-being of persons and the existence of pathologies linked to the intake of specific nutrients. In the special part some selected foods are treated highlighting their chemical composition, the health effects given by specific components and the analyses that are carried out to ensure authenticity and quality. The articulation in the various topics is deeply interconnected, since the description of the foods in the special part will refer to the chemical composition, to the health properties or to the presence of problems related to the nutrients intake reported in the general part. However, an articulation of the various themes can be foreseen in the following number of hours (approximate values): point 1 = 30 hours; point 2 = 34 Compatibly with the needs of in-depth study presented by the students in the classroom, it is possible to foresee an articulation of the various themes in the following number of orientation hours: point 1 = 30 hours; point 2 = 34 hours GENERAL PART Foods and nutrients. Essential nutrients. Classifications of nutrients. Nutritional balance. Energy needs. Basal metabolism. Dietary guidelines. The recommended levels of intake of various nutrients for different age groups. Concept of alteration, adulteration and sophistication. Foodstuffs Labeling. Quality and authenticity. Genetically Modified Foods. Biological agriculture. Carbohydrates. Classification and role. Structure and chemical-physical properties of the main monosaccharides, disaccharides and polysaccharides. Reactivity. Enzymes involved in the carbohydrate chemistry. Sweet taste substances: sweetening power and notes on the receptive theories. Natural and synthetic sweeteners. Dietary products for people with disorders in the carbohydrate metabolism (lactase deficiency, galactosemia, fructosemia). The fiber. Definition. Soluble fiber and insoluble fiber. Prebiotics and Probiotics. Functional properties of prebiotic and probiotic foods. Lipids. General aspects, classes of compounds. Nomenclature, diffusion and physico-chemical properties of saturated, monounsaturated and polyunsaturated fatty acids. Maltodextrins. Biological and nutritional role of lipids. Modifications induced in lipids from oxygen, light, heat, biocatalysts, etc. Evaluation of the conservation status of lipids. Protein. Natural amino acids: nomenclature and structural classification. Physical properties and main reactivity. Essential amino acids. Limiting amino acid. Protein quality. Protein classes in foods and protein sources. Kjeldahl method. Determination of the amino acid sequence. Maillard reaction. Dietetic products for celiac disease. Vitamins: Structure, main food sources, stability, biological function, absorption and quantitative determination of hydro- and liposoluble vitamins. Inorganic component Main food sources Water as food. Chemical-physical characteristics of water and properties of foods containing water. Water classification in food (total, free and bound). Water activity. Influence of water activity on food stability. Water intended for human consumption. Drinking water. Mineral waters. Food Additives. Classification and requirements, Legislative aspects. Stabilizers. Antimicrobials. Natural and synthetic emulsifiers .. Analytical methods in Food Analysis. Conventional methods and advanced methodologies. SPECIAL PART Cereal and Cereal products Generality. Composition of the main cereals. World and Italian cereal production. Wheat. Wheat classes. T. aestivum (common wheat) and T.durum (durum wheat). Structure and composition of wheat kernels. Classification of flour: evaluation methods. Pasta and bread. Bakery products (overview). Rice. Rice species. Treatments made to obtain the commercial product. Vegetable oils and edible fats Olive oils. Composition and classification. Main analyses foreseen by the European regulation for the determination of quality and genuineness. Seed oils, hydrogenated fats and margarine: generality, production and refining technologies. Effects of technological treatments. Composition of the main seed oils. Milk and derivatives Definition. Composition with respect to milk protein and lipid fractions. Defects and alterations. Effect of heat treatments. Regulatory requirements. Milk cream: types and methods of production. Butter. Scheme of burrification processes. Cheese: Definition, historical outline, classification, composition. Transformations in cheese ripening. Maturity coefficient. Laboratory experiences. RECOMMENDED TEXTS L.Mannina, M.Daglia, A.Ritieni: La Chimica e gli Alimenti (Casa Editrice Ambrosiana) P.Cabras-A.Martelli: Chimica degli Alimenti (Piccin). F.Evangelisti e P.Restani: Prodotti Dietetici: chimica, tecnologia e impiego (Piccin)
Prerequisites
The students should have some basics on organic chemistry. In order to better understand some specific concepts (auto and photo oxidation of lipids, reaction between sugars and proteins etc.) and to more easily achieve the learning objectives, it would be important to know the chemical structure of sugars, lipids and proteins. Where the student can not attend the lessons, he/she must absolutely inform himself of what was made available and/or reported by the teacher, as material useful for learning purposes. The above mentioned must not be considered as an indispensable obligation, but as a prerequisite recommended to optimize the successful passing of the exam, to be taken at the end of the course.
Books
L.Mannina, M.Daglia, A.Ritieni: La Chimica e gli Alimenti (Casa Editrice Ambrosiana) P.Cabras-A.Martelli: Chimica degli Alimenti (Piccin). F.Evangelisti e P.Restani: Prodotti Dietetici: chimica, tecnologia e impiego (Piccin) In order to help the student (in terms of method), the integrated distribution of the two recommended texts along the duration of the course could be hypothesized as follows: Text 1 is useful for the general part and special part
Teaching mode
The adopted teaching method provides (for the greater number of hours) lectures. However, students are invited to make reports on current selected topics regarding foods The teaching methods chosen by the teacher contribute not only to the achievement of the planned training objectives, but also allow the student to deal with current important issues
Frequency
Lessons will be held in person.
Exam mode
The actual achievement of the expected learning outcomes by the student, in accordance with the training objectives, is evaluated through an oral exam. Among the aspects that contribute to the formation of the final judgment, beyond the specific preparation of the student on topics of examination, her/his reasoning ability is also assessed, on the basis of the study that it is conducted independently, which should not be based only on the mnemonic abilities. The duration of the test, as an oral one, is difficult to define and depends essentially on the degree of preparation and the relative exhibition skills of the student. An average duration of about 20 minutes is conceivable. The teaching, as established by Manifesto, does not provide for intermediate tests but only a test at the end of the teaching provision. This test has pre-established dates communicated annually to the Secretariats and published via Infostud websites. In any case, the student has the opportunity of a sort of "self-assessment" during the course because "ad hoc moments" of review and questions on the concepts developed are dedicated. To pass the exam it is need to achieve a grade of not less than 18/30. The student must demonstrate that has acquired sufficient knowledge of the general and special topics To achieve a score of 30/30 cum laude, the student must instead demonstrate that has acquired excellent knowledge of all the topics covered during the course and she/he is able to connect them in a logical and coherent way.
Lesson mode
The adopted teaching method provides (for the greater number of hours) lectures. However, students are invited to make reports on current selected topics regarding foods The teaching methods chosen by the teacher contribute not only to the achievement of the planned training objectives, but also allow the student to deal with current important issues
  • Lesson code10595386
  • Academic year2024/2025
  • CoursePharmacy
  • CurriculumSingle curriculum
  • Year3rd year
  • Semester1st semester
  • SSDCHIM/10
  • CFU8
  • Subject areaDiscipline Farmaceutico-alimentari