Preliminary communication

https://doi.org/10.31803/tg-20220116105138

How to Improve the Monitoring of Subjective Analytical Methods and Assessors - The Case of Wine

Ivana Alpeza orcid.org/0000-0003-0278-3312 ; Croatian Agency for Agriculture and Food, Centre for Viticulture, Enology and Edible Oils, 10000 Zagreb, Jandrićeva 42, Croatia
Ivna Linke ; Croatian Agency for Agriculture and Food, Centre for Viticulture, Enology and Edible Oils, 10000 Zagreb, Jandrićeva 42, Croatia
Biserka Runje orcid.org/0000-0002-7786-0864 ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 10000 Zagreb, Ivana Lučića 5, Croatia

Abstract

Due to possible various physiological errors in sensory testing, regardless of knowledge and experience, it is necessary to control the results and assessors. This paper aims the possibility of some statistical tools based on laboratory control charts to monitor assessors in wine sensory analyses done in the certification procedure. The data of control charts and reliable results were processed, and individually the results of "100 points" and "Yes/No" methods. The possibility of checking the consistency and concordance of the assessors using wine faults descriptors is also presented. It has been observed that the Chi-square test and some graphical statistics, such as scatter with correlation analysis, can be a good tool in assessors monitoring. The results of sensory analyses affect the wine declaring, and therefore, continued development of technical conditions and tools in the monitoring of assessor's performance is expected to reduce subjectivity and potential errors.

Keywords

assessors; monitoring; subjective sensory analyses; wine

Hrčak ID:

283792

URI

https://hrcak.srce.hr/283792

Publication date:

23.9.2022.

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