Abstract:

Zaosu pear was used as the test material in the study, the parameters such as pre-test speed, test speed, post-test speed, target mode, strain and trigger force in the texture profile analysis ( TPA ) measurement mode were set, the pre-test speed, test speed and post-test speed were set to 1mm / s, 2mm / s and 3mm / s, the strain was set to 30%, 40%, 50%, 60%, 70% and 80%, the trigger force was set 0.1N, 0.2N and 0.3N, the induction probe is P100 flat probe, the test results including hardness, fracturability, springiness, cohesiveness, chewiness and resilience were obtained to form a data set. Then the changes of fruit texture indexes under different parameter setting conditions were comprehensively analyzed and evaluated. The results can objectively reflect the texture characteristics of Zaosu pear, and put forward reasonable suggestions for the test technical parameters in the TPA measurement mode of pear fruit, the optimal setting of relevant parameters provides data support for the parameter setting of fruit TPA measurement in the future.

Key words: fruit, TPA, setting, dataset