SENSORY ANALYSIS Flashcards
Why do we need SENSORY ANALYSIS TESTING?
TO:
- Evaluate established food products
- Analyse food products for improvement
- Establish consumer response
- Ensure the product meets the specification
- Maintain product quality
- Conduct reviews
What are PREFERENCE TESTS?
Used to establish consumer’s OPINIONS & gather SUBJECTIVE information
- PAIRED PREFERENCE TESTS
- HEDONIC RANKING TESTS
- DIFFERENCE TESTS
What is PAIRED PREFERENCE TESTING?
2 products are given. Consumer picks their favourite.
What is HEDONIC RANKING?
The ranking of products in order of PREFERENCE to find out which are the best samples in a group
What is DIFFERENCE TESTING?
To highlight specific changes Eg. reduced sugar There are many types: - PAIRED COMPARISONS - TRIANGLE TESTS - DUO - TRIO TESTS - 2 OUT OF 5 TESTS - TASTE THRESHOLD TESTS
What are PAIRED COMPARISONS used for?
To help confirm manufacturer’s predictions
Eg. REDUCED FAT WILL….make it harder (biscuits)
What is the 2 OUT OF 5 TEST?
To see if differences can be detected between 2 products
- 2 ARE THE SAME
- 3 ARE THE SAME
What is the TASTE THRESHOLD TEST?
Works out the minimum amount of each flavour for it to be noticed
What are GRADING TESTS?
They produce a RANKING/ RATING/ PROFILE of a product
- They asses intensity of specific sensory qualities
- Sensory descriptors are graded and ranked
- RANKING TESTS
- RANKING TESTS & DESCRIPTORS
- RATNG TESTS
- STAR PROFILE
What are RANKING TESTS?
Sort a variety of foods in order of popularity by taste Eg. all of WALKER’S crisp flavours
What is RANKING TESTS & DESCRIPTORS?
Used to place variety of one food into order Eg. Tomato soup made in different ways
What are RATING TESTS?
Allows consumer to rate the extent to which they like/dislike a quality Eg. sweetness of cheesecake base
What is STAR PROFILING?
Describes the appearance/ taste/ texture of product
How d=should one undertake SENSORY ANALYSIS?
- QUIET AREA away from distractions
- Place samples in CODED CONTAINERS with random letters/numbers
- Supply each tester with WATER
- Get testers to taste them 1 AT A TIME
- Get testers to RECORDD RESPONSES
