Correlation between Texture Parameters of Jujube Paste and Sensory Quality
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Abstract:
In view of the lack of objective evaluation criteria for the quality of jujube paste fillings, the texture profile analysis (TPA) method for jujube paste fillings was established by analyzing the influence of test conditions on TPA parameters of jujube paste fillings. The results showed that the TPA parameters were the best when the probe speed was 5 mm/s, the compression degree of jujube mud surface was 50%, the test residence time was 5 s, and the trigger force of probe to jujube mud stuffing was 5 g. By using the multi-faceted texture analysis method in sensory evaluation, the grading rules of jujube paste filling were formulated. The results of Pearson analysis showed that the roughness of sensory evaluation indexes had different degrees of influence on fragility, hardness and compactness (Pearson coefficient r was between 0.9~1, p<0.01); the correlation analysis of TPA parameters and sensory scores showed that the hardness, adhesion, cohesiveness and chewiness of TPA parameters were significantly correlated with sensory score and resilience at the level of 0.01. Therefore, five TPA parameters of hardness, adhesiveness, cohesiveness, chewiness and resilience were proposed as objective evaluation indexes of filling quality.
