M1 - Flavors & Fragrances (ICAP P2)

This teaching unit is dedicated to the acquisition of concepts related to pigments, dyes and adsorbents, from the point of view of their structures and applications. Emphasis is placed on applications in the fields of flavors & fragrances (food colorants, perfumery) and cosmetics (hair dyes, powders, toothpastes, etc.). Some sessions are specific to each of the two pathways (P1, Cosmetics Engineering; P2, Flavors & Fragrances) of the Master's degree in Chemistry specializing in Cosmetics, Flavors and Fragrances Engineering (ICAP). The course comprises lectures and tutorials.

Hourly volumes* :

CM: 10 h

TD: 10 h

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Some basic microbiological principles will be covered, giving students an overview of the diversity of microorganisms. Bacteria's mode of nutrition and multiplication as a function of physico-chemical environmental parameters will be studied.

The composition and role of skin and digestive microbiota will be discussed.

The microbiological criteria used for quality control of cosmetics and food products will be defined.

Physical and chemical antimicrobial agents to control microbial development will be examined.

On a practical level, students will be expected to know how to handle bacteria and be familiar with microbiological safety rules. Usual microbiological control techniques and preservative efficacy tests will be carried out on cosmetic products.

Hourly volumes* :

CM: 12h

Practical work: 8h

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- Terms and definition of natural raw materials (ISO/TC54 "Essential oils") 

- Extraction methods for volatile constituents: obtaining essential oils, flavor extraction, supercritical CO2 extraction, ESAM process, VMHD extraction, headspace extraction techniques, SPME...
- Characterization of volatile constituents: Gas Chromatography (GC), Ultra Fast Gas Chromatography (UFGC), Flame Ionization Detector (FID), Gas Chromatography-Mass Spectrometry (GC-MS), GC-FTIR, Comprehensive two-dimensional gas chromatography (GC-GC), chiral chromatographic analysis, GC-olfactometry, electronic nose.

Hourly volumes* :

CM: 12h

Practical work: 8h

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Course: Study of gustation and olfaction (reception and transmission of messages, coding of information, psychophysiological importance), notions of sensory analysis.

Practical work: Learning referents used in perfumery and aromatics. Description, comparison, memorization, determination of recognition thresholds, application of the notion of olfactory power and volatility to the search for agreements.

Hourly volumes* :

CM: 12h

Practical work: 8h

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This UE covers :

- the fundamentals of colorimetry, which defines an unambiguous measure of color based on psychophysical experiments.

- the principle and practical use of color measuring devices (colorimeters and spectro-colorimeters).

- the principles of color reproduction, particularly in the context of perfumes and cosmetics.

Theoretical ideas are complemented by a significant amount of observation and experimentation in the short practical sessions.

Hourly volumes* :

CM: 12h

Practical work: 8h

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Knowledge of gas chromatography and mass spectrometry techniques with electron impact ionization and quadrupole mass analyzer for the analysis of volatile organic molecules.

1) GC-MS analysis of volatile organic compounds :

• Electron impact ionization (EI) techniques
• Chemical ionization (CI) techniques
• Quadrupole (Q) analysis techniques
• GC/MS coupling

2) Applications in organic chemistry analysis and characterization of volatile samples.

Hourly volumes* :

CM: 15 H

TD: 5 H

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This course covers the fundamental concepts and practical tools of chemometrics through : - statistical data analysis ;

• probability laws ;
• confidence interval estimation ;
• parametric and non-parametric tests.

An introduction to experimental design will be offered at the end of the module.

Hourly volumes* :

CM: 7h

TD: 13h

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- Introduction to the major fragrance families (SFP Classification)

- Perfumery regulations.

- Learn how to formulate "typical" bases for perfumery or aromatics.

Hourly volumes* :

CM : 10h

TD : 8h

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This course is designed to teach liquid and gas chromatography.

Hourly volumes* :

            CM :15h

            TD: 5h

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- International market for natural aromatic raw materials, main production
- Main olfactory families

- Study of natural aromatic raw materials: chemical and olfactory characteristics
- Control of essential oils according to AFNOR standards

Hourly volumes* :

CM: 12h

Practical work: 8h

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Fragrance molecules are the raw materials needed to create a perfume. This course is designed to provide students pursuing a degree in fragrance and flavor engineering with the fundamentals they need in this field.

Hourly volumes* :

CM: 12h

Practical work: 8h

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The professional project bridges the gap between traditional practical work and the internship in a laboratory or company. It is carried out in the form of a tutored project, which puts students in a professional situation through collaborative (group) work based on the realization of a project in response to a problem set by a company, community, association or academic. It is part of the Chemistry Master's core curriculum, and is carried out under the responsibility of a member of the teaching team (academic or industrial). Carried out throughout the semester, this project aims to link and anchor the knowledge and know-how acquired during the Bachelor's degree and the early Master's program, through a professional setting. These situations will be directly linked to the Master's course chosen by the students. In addition to their chemistry-disciplinary skills, students will also acquire the interpersonal, organizational and communication skills intrinsically linked to project management, which will equip them for their future professional life.

Responding to a research problem: example of the synthesis of new phosphorescent materials.

Hourly volumes* :

CM: 5h

TD: 5h

Practical work: 40h

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Study the major chemical families of odorant molecules from a chemical and olfactory point of view.

Acquire fundamental knowledge in the field of industrial synthesis and hemisynthesis of odorant molecules, their olfactory characteristics and their applications in Aromatics and/or Perfumery.

Hourly volumes* :

CM: 12h

TD : 8h

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This teaching unit is shared with MI students in the Chemistry Master's courses: ICAP P1, ICAP P2, MAT P1, MAT P2, BM (semester S2). The following topics will be covered:

• The 12 Principles of Green Chemistry and units of measurement in Green Chemistry ;
• Synthesis strategies for sustainable chemistry ;
• Alternative or eco-compatible solvents for synthesis and extraction;
• Non-conventional activation techniques and applications.

CM: 13

TD: 7 H

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Fragrance formulation

Study of constraints related to the target application (stability, physico-chemical properties, cost, regulations, etc.)

Application

Hourly volumes* :

CM: 12h

TD : 8h

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The following topics will be covered:

- Biobased solvents

- Biomass fuels

- Antioxidants derived from lignin

- Metal catalysts from plants

- Surfactants obtained from renewable resources

- Examples of industrial applications of enzymatic synthesis

Hourly volumes* :

CM: 15

TD : 5

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In small groups or on a one-to-one basis, this course will cover pedagogical tools and best practices relating to communication and professional integration, through :

• assessments of knowledge, skills, competencies, attitudes and motivations;
• awareness of job search techniques ;
• CV and cover letter writing ;
• rules of oral and written communication ;
• mock job interviews.

Students will be able to take part in role-playing exercises directly linked to the sectors targeted by their career paths.

Practical work: 20h

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Evaluation of the aromatic power of the main aromatic ingredients.
Direct and retronasal olfactory comparison.
Influence of the medium on perception.
Formulation of aromatizers and applications on food supports with the help of an aromatician. Regulatory constraints.

Hourly volumes* :

            CM: 12h

            TD : 8h

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A 4 to 6 month work placement in a research laboratory or in R&D in the flavors or fragrances sector.

Student trainees will be given assignments based on the theoretical and practical knowledge acquired during semesters S1 and S2 of the Master's program.

The course will start on March¹.

Assessment of the internship: writing a report, oral presentation and assessment by the internship supervisor are the 3 elements of the internship grading.

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