Syllabus For The Subject Sensory Evaluation Techniques





Chapter 1 Introduction to sensory techniques

1.1    Introduction

1.2    Development of sensory testing

1.3    Human subject as instruments

1.4    Conducting a sensory study


Chapter 2 sensory attributes and the way we perceive them

2.1 Introduction

2.2 Sensory attributes

2.3 The human senses

2.4 Perception at threshold and above


Chapter 3 Controls for the room, products, and panel

3.1 Introduction

3.2 Test controls

3.3 product controls

3.4 Panelist controls


Chapter 4 Factors influencing sensory verdicts

4.1 Introduction

4.2 Physiological factors

4.3 Psychological factors

4.4 Poor physical condition


Chapter 5 Measuring responses

5.1 Introduction

5.2 Psychophysical theory

5.3 Classification

5.4 Grading

5.5 Ranking

5.6 Scaling


Chapter 6 Overall difference tests: Does a sensory difference exits between sample?

6.1 Introduction

6.2 The unified approach to difference and similarity testing

6.3 Triangle test

6.4 Duo-trio test

6.5 Two-out-of-five test

6.6 Same/difference test (or simple difference test)

6.7 “A”-“Not A” test

6.8 Difference-from-control test

6.9 Sequential test


Chapter 7 Attribute Difference test: how does attribute X differ between samples?

7.1 Introduction: Paired comparison designs

7.2 Directional difference test: Comparing two sample

7.3 Pairwise ranking test: friedman analysis-comparing several samples in all possible pairs

7.4 Introduction: Multisample difference test- block designs

7.5 Simple ranking test: Friedman analysis-Randomized (complete) block design

7.6 Multisample  difference test: rating approach –evaluation by analysis of variance (ANOVA)

7.7 Multisample difference test: BIB ranking test (Balanced incomplete block design)- Friedman analysis

7.8 Multisample difference test: BIB ranking test (balanced incomplete block design)- Evaluation by analysis of variance


Chapter 8 Determining threshold

8.1 Introduction

8.2 Definitions

8.3 Applications of threshold determinations


Chapter 9 Selection and training of Panel members

9.1 Introduction

9.2 Panel development

9.3 Selection and training for difference tests

9.4 Selection and training of panelists for descriptive testing

9.5 Panel performance and motivation

Appendix 9.1        Prescreening questionnaires

Appendix 9.2        Panel leadership advice


Chapter 10 Descriptive analysis techniques

10.1 Definition

10.2 Field of application

10.3 Components of Description analysis

10.4 Commonly used descriptive test methods

10.5 Application of descriptive analysis panel data


Chapter 11 The spectrum tm descriptive analysis method

11.1 Designing descriptive procedure

11.2 Myths about the spectrum descriptive analysis method

11.3 Terminology

11.4 Intensity

11.5 Other options

11.6 Modified short-version spectrum descriptive procedures for quality assurance, shelf-life studies, etc

Appendix 11.1      Spectrum terminology for descriptive analysis

Appendix 11.2      Spectrum intensity scales for descriptive analysis

Appendix 11.3      A streamlined approach to spectrum reference

Appendix 11.4      Spectrum descriptive analysis product lexicons

Appendix 11.5      Spectrum descriptive analysis example of full product descriptions

Appendix 11.6      Spectrum description analysis training exercises


Chapter 12 Affective tests: consumer tests and in-house panel  acceptance tests

12.1 Purpose and applications

12.2 The subjects/consumer in affective tests

12.3 Choice of test location

12.4 Affective test methods-fuzzy front end

12.5 Affective methods: qualitative

12.6 Affective methods: quantitative

12.7 Internet research

12.8 Using other sensory methods to uncover insights

Appendix 12.1      Screeners for consumer studies-focus group,CLT,and HUT

Appendix 12.2      Discussion guide-group or one-on-one interviews]

Appendix 12.3      Questionnaires for consumer studies

Appendix 12.4      Protocol design for consumer studies

Appendix 12.5 Additional fuzzy front end references


Chapter 13 Basic statistical methods

13.1 Introduction

13.2 Summarizing sensory data

13.3 Statistical hypothesis testing

13.4 Thurstonian scaling

13.5 The statistical design of sensory panel studies

13.6 Appendix on probability


Chapter 14 Advance statistical methods

14.1 Introduction

14.2 Data relationships

14.3 Preference mapping

14.4 The treatment structure of an experimental design


Chapter 15 Guidelines for choice of technique

15.1 Introduction


Chapter 16 Guidelines for reporting result

16.1 Introduction

16.2 Summary

16.3 Objective

16.4 Experimental

16.5 Result and discussion


Chapter 17 Statistical tables













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