Sensory Test and Panels Flashcards
Overview of all Sensory Analysis Tests and Panels
Name all 4 Tests
Discriminative Test
Descriptive Test
Consumer Test
Quality Test
Fundamentals of Discriminative Test
Can one ingredient/raw material be exchanged with another (cheaper) without changing sensory properties?
Does the package give off-flavors?
Do the products change during storage?
Fundamentals of Descriptive Test
Which properties describe differences between own and competitor products?
Which properties change during storage?
Which sensory properties can be predicted by instrumental analyses?
Fundamentals of Consumer Test
How important is the difference between products?
Which product do consumers prefer?
Is the product acceptable after 2 weeks storage?
Fundamentals of Quality Test
Which quality standards do we want for our products?
How much does today’s production deviate from a given specification?
What kind of methods can you use in Discriminative Test?
Triangle test
Pair test
n-AFC
Duo-Trio test
Rank order test
What kind of methods can you use in Descriptive Test?
Qualitative / Quantitative methods
What kind of methods can you use in Affective and Cognitive Test?
Hedonic test
Preference test
Acceptability test
Various attitude and behavior analysis
What kind of methods can you use in Quality Test?
Expert evaluation
Various quality control methods
How many different types of Panels they are?
5
Name all the different types of Panels:
Expert panel Laboratory panel Consumer panel Focus group 1-1 interviews
What is successful test?
A successful test is one that has well-defined objectives such as: Overall Project Objective Test Objective Screen Samples Design Test
Project Objective:
Defining the needs of the project leader is the most important requirement for conducting the correct test. If this critical step is not carried out, the sensory analyst is unlikely to use the appropriate test or to interpret the data correctly.
Test Objective:
overall difference, attribute difference, relative preference, acceptability etc. Avoid attempting to answer too many question in a single test. A good idea is for the sensory analyst and project leader to record, in writing, before the test is initiated the project objective, the test objective, and a brief statement of how the results will be used.
Screen Samples:
during discussion of project and test objectives the sensory analyst should examine all sensory properties of the samples to be tasted.
