[14a-K205-1~7] 1.1 Interdisciplinary and General Physics

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[14a-K205-3] 【Absent】Evaluation of correlation between the viscoelastic properties of avocado pulp and the optical properties of the rind

〇Ichiro Tono¹, Makoto Saito², Fujio Terai³, Yoshiro Baba⁴, Hiroyasu Ishikawa¹ (1.Shibaura Inst. Tech., 2.DMR corp., 3.TRIF LLC, 4.TWINKLE TECH)

Keywords:

avocado ripeness,pulp hardness,chlorophyll fluorescence

Simplifying and improving the accuracy of ripeness testing is a challenge in the distribution of avocados. We have investigated a nondestructive ripeness evaluation system based on fluorescence intensity and chromaticity using a simple measuring instrument, but the correlation with pulp firmness has not been evaluated. In this report, we investigated the correlation between the optical properties of the rind and the maximum stress change rate of the pulp. The chlorophyll fluorescence intensity ratio of the rind and the chromaticity parameters L* and C* showed a constant correlation with the maximum stress change rate of the pulp.