Volume 46, Issue 3 e16343
ORIGINAL ARTICLE

Sensory evaluation and prediction of bulk wine by physicochemical indicators based on PCA-PSO-LSSVM method

Xu Zhang

Xu Zhang

College of Information and Electrical Engineering, China Agricultural University, Beijing, China

Contribution: ​Investigation, Methodology, Software, Writing - review & editing

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Hao Li

Hao Li

College of Information and Electrical Engineering, China Agricultural University, Beijing, China

Contribution: ​Investigation, Methodology, Software, Writing - original draft

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Weisong Mu

Weisong Mu

College of Information and Electrical Engineering, China Agricultural University, Beijing, China

Contribution: Project administration, Resources, Supervision

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Valentina Gecevska

Valentina Gecevska

Ss. Cyril and Methodius University, Skopje, Macedonia

Contribution: Validation, Writing - review & editing

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Xiaoshuan Zhang

Xiaoshuan Zhang

College of Engineering, China Agricultural University, Beijing, China

Contribution: Project administration, Resources, Supervision

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Jianying Feng

Corresponding Author

Jianying Feng

College of Information and Electrical Engineering, China Agricultural University, Beijing, China

Correspondence

Feng Jianying, College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China.

Email: [email protected]

Contribution: Funding acquisition, Methodology, Project administration, Resources, Supervision, Writing - review & editing

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First published: 07 January 2022
Citations: 4

Abstract

It is difficult to implement the sensory quality evaluation of bulk wine before and after transportation due to geographical, time, cost, and personnel limitation. This study aimed to use the physicochemical indicators of bulk wine to construct an evaluation model of sensory quality. First, this paper designed and carried out the simulation experiment of bulk wine transportation and obtained experimental data on physicochemical and sensory indicators of wine. Afterwards, principal component analysis (PCA) was used to reduce the dimension and fuse features of the physicochemical index. Then, the extracted features were used as the input of the evaluation model, least square support vector machine (LSSVM) was constructed for sensory evaluation, and particle swarm optimization (PSO) algorithm was selected to optimize LSSVM parameters. Finally, the PCA-PSO-LSSVM model was practically applied in sampled winery. The results showed that comparing models’ accuracy the PCA-PSO-LSSVM model was superior to traditional models LSSVM and PSO-LSSVM, there is significant difference between PCA-PSO-LSSVM and LSSVM, and the predictive accuracy in appearance and taste attributes was high and the overall prediction accuracy was 86.6%. The application results revealed the changes of sensory quality for bulk wine after transportation. This research provides a set of simple and feasible methods for the sensory evaluation of bulk wine.

Practical applications

To study the method of using the basic physicochemical index of wine to intelligently evaluate the sensory attributes of bulk wine, so as to realize the accurate evaluation of the quality of bulk wine after transportation. By comparing the comprehensive and accurate quality evaluation before and after the bulk wine transportation, it is helpful for wine companies to understand the impact of the transportation link on the wine quality, further improve the transportation method of bulk wine, and ensure the quality of the wine has important practical significance.

CONFLICT OF INTEREST

The authors have declared no conflicts of interest for this article.

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