Chapter 1 | General Requirements for Sensory Testing

Wolf, Mona

doi:10.1520/mnl2620170042

Sensory Testing Methods: Third Edition 2020

DOI: 10.1520/mnl2620170042

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Chapter 1 | General Requirements for Sensory Testing

Mona Wolf¹

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2024

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“…The sample sizes recommended range from 25 to 300 participants, depending on the exact objective and setting (Stone and Sidel, 2004;Lawless and Heymann, 2010;Meilgaard et al, 2015). Discrimination tests rarely use fewer than 20 to 25 panel members (and often up to 40 panel members) unless the products differ with fewer numbers (Wolf, 2020). ISO/IEC 17043:2023 (ISO, 2023) emphasizes the importance of considering the minimum number of participants necessary for proficiency testing objectives.…”

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confidence: 99%

Controlling sensory analysis results: tools and importance in assessor selection. Case study: PROVA-ALABE proficiency test

Pinto,

Barros,

Vilela

et al. 2024

Ciência Téc. Vitiv.

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The PROVA-ALABE essay aims to characterize the olfactory, tactile and taste changes underlying the sensory evaluation of wines. It allows assessors to understand the extent to which their perception of a wine is harmonized with that of the other assessors in the trial, contributing to their qualification, as well as the corresponding panel, in detecting and recognizing the most prevalent defects in wines. This work aimed to provide a critical summary of outcomes achieved through interlaboratory tests to identify a primary defect in deliberately contaminated wines. Over three years, interlaboratory tests were performed, corresponding to 60 wines mainly altered with a specific compound. These tests aimed to identify different defects, such as mould, lactic, acescent, reduced, oxidized, vegetable, animal, acidic, bitter, astringency, and others (plastic, sulphur dioxide, bitter almond). However, wine's complexity introduces factors that can affect assessors' perception, with the same defect being perceived differently based on the panel's experience, training, and cultural backgrounds, which can be problematic for an objective analysis. Results of rejection rates and assessor identification percentages suggest that oxidation, mould, and animal defects are more easily recognized. Participation in interlaboratory tests is mandatory for accredited laboratories, serving as an interesting tool for demonstrating results consistency across sensory laboratories. Additionally, such participation can provide valuable information about assessors' performance.

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confidence: 99%

Controlling sensory analysis results: tools and importance in assessor selection. Case study: PROVA-ALABE proficiency test

Pinto,

Barros,

Vilela

et al. 2024

Ciência Téc. Vitiv.

View full text Add to dashboard Cite

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Chapter 1 | General Requirements for Sensory Testing

Cited by 1 publication

References 23 publications

Controlling sensory analysis results: tools and importance in assessor selection. Case study: PROVA-ALABE proficiency test

Controlling sensory analysis results: tools and importance in assessor selection. Case study: PROVA-ALABE proficiency test

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