Food hygiene Test 1 - Sensory Analysis | Quizlet

What is Sensory evaluation used for?

1. Compare similarities / difference

2. Evaluate range of existing foods

3. Analyse food samples for improvements

4. Gauge response - acceptable or unacceptable

5. Explore specific characteristics

6. Check if final dish / food product meets specifications

7. Provide subjective & objective feedback

What is controlled when using people as measuring instruments in food evaluation

Essential to control testing methods & conditions rigidly to avoid errors by psychological factors

Errors in sensory analysis are due to?

Error - (is not the same as mistake) but are various extraneous influences that may effect their sensory response incl:

1.Physical & mental condition of the panelist &

2. Influence of the testing environment

Define Sensory evaluation panel

Groups of people who evaluate food samples

Consists of 3 main groups of panels:

1. Highly trained experts

2. Laboratory panels

3. Consumer panels

Define a panel of - highly trained experts

A panel that judges the quality based on standards set by the food industry

Work individually

Define a - laboratory panel

Small groups that work at a company's lab

They help develop new products & determine how to change existing products

Define a - consumer panel:

Used to test food outside of labs

I.e., shops, markets etc

Use scientific terms for how much they like or dislike it

Best conditions and time to conduct a sensory test & why?

-> Late Morning or mid-afternoon

-> not tried or hungry

-> late Am bad for spicy food

-> Late pm - lack motivation

Quantity of sensory sample, must be:

1. Size limited by amount of product available

2. Representative of what is needed to test

3. Test dependent - consumer sample needs to be more

4. Discriminative - 16ml liquid, 28g solid, double for preference test

5. Market test - use consumer serving size

What taste good at 20ml might not at 200ml

Utensils & containers for sample testing must be:

1. Glass is best (inert)

2. No flavour or aroma

Two basic categories of sensory methods:

1. Analytical

2. Affective

Describe analytical method & what it includes:

Analytical method - test are always conducted in sensory individual boxes of sensory labs

1. Discrimination / difference

- Paried

- duo-trio

- triangle

2. Descriptive

- flavour profile

- texture profile

- quantitative descriptive analysis

- attribute rating method

Discrimination methods, is part of what basic sensory method & what does it include

Analytical method - discrimination

Answers - is there a difference noticed & at what confidence level

Includes:

1. Paired comparison

2. Duo-trio

3. Triangle

4. Ranking

5. A not A

Descriptive analysis, is part of what basic sensory method & includes?

Analytical methods - descriptive analysis

ID specific differences & their magnitudes / levels

Includes:

1. Flavour profile

2. Texture profile

3. Quantitative descriptive analysis

4. Attribute rating method