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Laboratory Exercises for Sensory Evaluation / / by Harry T. Lawless
| Laboratory Exercises for Sensory Evaluation / / by Harry T. Lawless |
| Autore | Lawless Harry T |
| Edizione | [1st ed. 2013.] |
| Pubbl/distr/stampa | New York, NY : , : Springer US : , : Imprint : Springer, , 2013 |
| Descrizione fisica | 1 online resource (155 p.) |
| Disciplina | 664.07 |
| Collana | Food Science Text Series |
| Soggetto topico |
Food—Biotechnology
Proteins Analytical chemistry Food Science Receptors Analytical Chemistry |
| Soggetto genere / forma | Handbooks, manuals, etc. |
| ISBN | 1-4614-5713-0 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Section A. Introductory Material and General Instructions -- 1. Introduction for Students -- 2. Introduction for Instructors and Teaching Assistants -- Section B. Eleven Laboratory Exercises in Sensory Evaluation -- 3. Screening panelists using simple sensory tests.- 4. Comparison of discrimination test methods.- 5. Forced choice thresholds using an ascending method of limits.- 6. Signal Detection Theory and the Effect of Criterion on Response.- 7. Sweetness of fructose and sucrose determined by different scaling methods.- 8. Time-intensity scaling.- 9. Flavor Profile Method.- 10. Introduction to Descriptive Analysis.- 11. Use of Reference Standard in Panel Training.- 12. Acceptance and Preference Testing.- 13. Optimization by ad libitum Mixing and the Just-About-Right Scale.- Section C: Brief Exercises and Group Projects.- 14. Group Exercise in Descriptive Analysis.- 15. Brief exercises -- Section D. Statistical Problem Sets for Sensory Evaluation -- Chapter 16: Sample Problem Sets for Statistics.- Exercise 1. Means, standard deviations, standard errors.- Exercise 2. Binomial-based statistics for discrimination tests -- Exercise 3: The t-tests.- Exercise 4. Simple Correlation.- Exercise 5. One and two-way ANOVA.- Exercise 6. Planned comparisons of means following ANOVA.- Exercise 7. Rank order tests -- Appendix. Sample data sets and open tables for calculations. |
| Record Nr. | UNINA-9910437816803321 |
Lawless Harry T
|
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| New York, NY : , : Springer US : , : Imprint : Springer, , 2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Quantitative sensory analysis [[electronic resource]] : psychophysics, models and intelligent design / / Harry T. Lawless
| Quantitative sensory analysis [[electronic resource]] : psychophysics, models and intelligent design / / Harry T. Lawless |
| Autore | Lawless Harry T |
| Pubbl/distr/stampa | Chichester, England, : Wiley-Blackwell, c2013 |
| Descrizione fisica | 1 online resource (418 p.) |
| Disciplina | 664/.07 |
| Soggetto topico |
Food - Sensory evaluation
Chemistry, Analytic - Quantitative |
| ISBN |
1-118-68479-6
1-118-68481-8 1-118-68480-X |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Quantitative Sensory Analysis: Psychophysics, Models and Intelligent Design; Copyright; Contents; Preface; 1 Psychophysics I: Introduction and Thresholds; 1.1 Introduction and Terminology; 1.2 Absolute Sensitivity; 1.2.1 The Threshold Concept; 1.2.2 Threshold Theories; 1.2.3 Other Types of Thresholds; 1.3 Methods for Measuring Absolute Thresholds; 1.3.1 The Method of Limits; 1.3.2 Forced-Choice Method of Limits; 1.4 Differential Sensitivity; 1.4.1 The Difference Threshold; 1.4.2 Methods for Measuring Difference Thresholds; 1.5 A Look Ahead: Fechner's Contribution
Appendix 1.A Relationship of Proportions, Areas Under the Normal Distribution, and Z -Scores Appendix 1.B Worked Example: Fitting a Logistic Function to Threshold Data; References; 2 Psychophysics II: Scaling and Psychophysical Functions; 2.1 Introduction; 2.2 History: Cramer, Bernoulli, Weber, and Fechner; 2.3 Partition Scales and Categories; 2.4 Magnitude Estimation and the Power Law; 2.4.1 The Method Evolves; 2.4.2 The Power Law and the Method Become Linked; 2.4.3 Ratio Scales for Hedonics?; 2.5 Cross-Modality Matching; Attempts at Validation; 2.5.1 Magnitude Production 2.5.2 Cross-Modality Matching 2.5.3 Magnitude Matching; 2.5.4 Trouble and Worry. The Variable Exponent; 2.6 Two-Stage Models and Judgment Processes; 2.6.1 The Personal Exponent; 2.6.2 Anderson's Approach: Functional Measurement; 2.7 Empirical Versus Theory-Based Functions; 2.8 Hybrid Scales and Indirect Scales: A Look Ahead; 2.9 Summary and Conclusions; Appendix 2.A Decibels and Sones; Appendix 2.B Worked Example: Transformations Applied to Non-Modulus Magnitude Estimation Data; References; 3 Basics of Signal Detection Theory; 3.1 Introduction; 3.2 The Yes/No Experiment 3.2.1 Experimental Design Responses and Payoff Matrices; 3.2.2 The Dice Game Metaphor; 3.3 Connecting the Design to Theory; 3.3.1 The Model and Measuring Sensory Distance; 3.3.2 Changing Criteria; 3.4 The ROC Curve; 3.4.1 The ROC Curve: A Plot of Changing Criteria; 3.4.2 Unequal Variance of Signal and Noise and Alternative Measures of Discriminability; 3.5 ROC Curves from Rating Scales; the R -Index; 3.5.1 Confidence Ratings; 3.5.2 The R-index; 3.6 Conclusions and Implications for Sensory Testing; 3.6.1 Lessons for Sensory Evaluation; 3.6.2 Case Study: A Signal Detection Tragedy 4.2.2 Extension to Other Discrimination Tests |
| Record Nr. | UNINA-9910139044303321 |
|
Lawless Harry T
|
||
| Chichester, England, : Wiley-Blackwell, c2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Quantitative sensory analysis : psychophysics, models and intelligent design / / Harry T. Lawless
| Quantitative sensory analysis : psychophysics, models and intelligent design / / Harry T. Lawless |
| Autore | Lawless Harry T |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Chichester, England, : Wiley-Blackwell, c2013 |
| Descrizione fisica | 1 online resource (418 p.) |
| Disciplina | 664/.07 |
| Soggetto topico |
Food - Sensory evaluation
Chemistry, Analytic - Quantitative |
| ISBN |
1-118-68479-6
1-118-68481-8 1-118-68480-X |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Quantitative Sensory Analysis: Psychophysics, Models and Intelligent Design; Copyright; Contents; Preface; 1 Psychophysics I: Introduction and Thresholds; 1.1 Introduction and Terminology; 1.2 Absolute Sensitivity; 1.2.1 The Threshold Concept; 1.2.2 Threshold Theories; 1.2.3 Other Types of Thresholds; 1.3 Methods for Measuring Absolute Thresholds; 1.3.1 The Method of Limits; 1.3.2 Forced-Choice Method of Limits; 1.4 Differential Sensitivity; 1.4.1 The Difference Threshold; 1.4.2 Methods for Measuring Difference Thresholds; 1.5 A Look Ahead: Fechner's Contribution
Appendix 1.A Relationship of Proportions, Areas Under the Normal Distribution, and Z -Scores Appendix 1.B Worked Example: Fitting a Logistic Function to Threshold Data; References; 2 Psychophysics II: Scaling and Psychophysical Functions; 2.1 Introduction; 2.2 History: Cramer, Bernoulli, Weber, and Fechner; 2.3 Partition Scales and Categories; 2.4 Magnitude Estimation and the Power Law; 2.4.1 The Method Evolves; 2.4.2 The Power Law and the Method Become Linked; 2.4.3 Ratio Scales for Hedonics?; 2.5 Cross-Modality Matching; Attempts at Validation; 2.5.1 Magnitude Production 2.5.2 Cross-Modality Matching 2.5.3 Magnitude Matching; 2.5.4 Trouble and Worry. The Variable Exponent; 2.6 Two-Stage Models and Judgment Processes; 2.6.1 The Personal Exponent; 2.6.2 Anderson's Approach: Functional Measurement; 2.7 Empirical Versus Theory-Based Functions; 2.8 Hybrid Scales and Indirect Scales: A Look Ahead; 2.9 Summary and Conclusions; Appendix 2.A Decibels and Sones; Appendix 2.B Worked Example: Transformations Applied to Non-Modulus Magnitude Estimation Data; References; 3 Basics of Signal Detection Theory; 3.1 Introduction; 3.2 The Yes/No Experiment 3.2.1 Experimental Design Responses and Payoff Matrices; 3.2.2 The Dice Game Metaphor; 3.3 Connecting the Design to Theory; 3.3.1 The Model and Measuring Sensory Distance; 3.3.2 Changing Criteria; 3.4 The ROC Curve; 3.4.1 The ROC Curve: A Plot of Changing Criteria; 3.4.2 Unequal Variance of Signal and Noise and Alternative Measures of Discriminability; 3.5 ROC Curves from Rating Scales; the R -Index; 3.5.1 Confidence Ratings; 3.5.2 The R-index; 3.6 Conclusions and Implications for Sensory Testing; 3.6.1 Lessons for Sensory Evaluation; 3.6.2 Case Study: A Signal Detection Tragedy 4.2.2 Extension to Other Discrimination Tests |
| Record Nr. | UNINA-9910825384103321 |
|
Lawless Harry T
|
||
| Chichester, England, : Wiley-Blackwell, c2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||