Diaporama analyse sensorielle en anglais
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Transcript

  • 1. CoSSOL Project Module 3 Third meeting in France Périgueux 11 th to 15 th May 2011
  • 2. Organoleptic Analysis : Practical Exercise
    • The test is based on two organoleptic exercises :
    • one on strawberries ;
    • another on Duck «foie gras» (fat liver )
    • The use of mathematical probability laws will enable us to
    keep only one hypothesis . Objectives
  • 3.
    • The organoleptic tests involved 30 partners of the COSSOL project from 11 European countries.
    • This number of participants is enough to assess that 14 identical answers suffice to decide whether the test is successful or not with a small 5% error margin .
    Methodology
  • 4.
    • Test 1 : Tasting of strawberries
    • The triangular test with the binominal law enables us to know if the public can distinguish two different varieties of strawberries .
    • Test 2 : Tasting of «foie gras»
    • The Wilcoxon test method enables us to hiérarchise the taste of two regional products from the same category : « whole half-cooked foie gras» on the one hand, «portion of duck Foie Gras with chunks of liver » on the other .
    Experiments
  • 5.
    • Test 1 : The triangular test enabled the public to actually distinguish the two different varieties of strawberries .
    • Test 2: The Wilconxon test method enabled the public to hiérarchise the two different foie gras products according to their taste.
    • The «portion of duck Foie Gras with chunks of liver » was clearly preferred to the « whole half-cooked foie gras  »
    Results
  • 6.
    • Step 1 : The teacher provides tyhe class with the basic elements that need to be known .
    • Step 2 : The organoleptic analysis enables us to:
    • put the notions evoked previously into practice.
    • Ease their assimilation by the students ;
    • Understand tyhe meaning and the utility of these elements ;
    • Make a link between theory and practice.
    Carrying out the tests with a class