Design and effect analysis of the gradient temperature cold store for fruit and vegetable preservation

The aim of the study was to create the conditions that met the needs of the experiment to study the optimal temperature for fruit and vegetable preservation and critical temperature of chilling injury. The best structure, technology and technical parameter of gradient store were designed, and elastic effect and field effect of temperature were determined further. During the running of the empty store and the store filled with fruits and vegetables, the difference in temperature is less than ±0.5℃.