Reliability of Sensory Test for Japonica Type Rice Cultivars in China

It is of great theoretical and practical significance to construct a scientific taste sensory evaluation method to obtain accurate and reliable data, so as to provide theoretical basis and technical support for the breeding and cultivation technology development of taste japonica rice varieties. In this study, sensory evaluation experiments were carried out based on statistical analysis. Through the analysis of variance of the evaluation results, the identification ability and hobbies of the evaluators were analyzed, and the correlation between them was discussed. The results show that there are significant differences between appraisers and varieties between the two repetitions of the comprehensive evaluation items investigated in this experiment, which verifies the repeatability of sensory evaluation and reveals the feasibility of taste sensory evaluation method. Among the 20 taste tasters participating in the taste evaluation experiment, 16 (80% of all) have low recognition ability for the taste comprehensive evaluation items, of which 6 (30% of all) have different hobbies from the overall tendency of all tasters, so they are considered not suitable to carry out taste evaluation as taste tasters. However, the results also show that the number of evaluators participating in this experiment who have both high recognition ability and high consistency with all hobbies is less. Therefore, in order to obtain more reliable results, it is very necessary to strengthen the training of appraisers and cultivate appraisers with high discrimination ability.