Correlation between the Sensory Evaluation and Texture Profile Analysis of Kiwifruit

In order to determine whether the instrument measurement for texture evaluation of kiwifruit reflects actual human sense,three kiwifruit varieties(‘Hayward’,‘Qin Mei’ and ‘Xu Xiang’)were used to investigate the correlation between sensory evaluation and texture profile analysis(TPA). The results showed that there was a significant correlation between sensory evaluation indices and TPA indices of three varieties of kiwifruit. However,the correlation coefficients were not high(|r|=0.002~0.807). The multi-parameter prediction model for each sensory index was established by stepwise regression analysis. It was found that the correlation coefficients between the predicted and actual value of sensory index were improved to some extent. The correlation coefficients between the predicted and actual evaluation values of the three varieties of kiwifruit were 0.377~0.782,0.370~0.895,and 0.490~0.764,respectively. In the validation of the prediction model,the average relative error for overall acceptability was 10.04%(‘Hayward’),9.78%(‘Qin Mei’)and 11.09%(‘Xu Xiang’).The results showed that multi texture indices fusion could establish better correlation with sensory indices.