关键词: 哈密瓜; 振动; 不同堆高; 生理及品质

Abstract: 【Objective】 This project aims to simulate refrigerated transport vibration of Hami-melon and analyze the variation and difference of physiological and quality indexes of different stacking heights for Hami-melon fruits in the hope of providing basis for the quality control of cold chain transportation of the fruits. 【Method】Xizhoumi 25, an early maturing variety of Hami melon in Xinjiang was used as the test material. Under the conditions of 4-6℃ and three different stacking heights and vibration frequency 7Hz, the changes of physiological indexes, such as fruit respiration rate and relative electrical conductivity of pulp were measured and effects of vibration on fruit physiology and quality of Hami melon stored at different height were analyzed.【Result】The effects of vibration on respiratory sorted by size: bottom＞top＞middle; The relative conductivity sorted by size: middle＞bottom＞top; The moisture content sorted by size: bottom＞middle＞top; The soluble solid content sorted by size: top＞middle＞bottom; The titratable acid content sorted by size: middle＞top＞bottom; The vitamin C content sorted by size: bottom＞top＞middle. 【Conclusion】The results indicated that lower frequency vibration could quicken the respiratory rate of melon pulp, increase the relative conductivity and the moisture content and decrease vitamin C content of melon pulp between 4-6℃. The effect of continuous low-frequency vibration on physiology and quality of Hami-melon fruits in lower heap was the greatest followed by middle heap and upper heap.

Key words: Hami-melon; vibration; different stacking heights; physiological quality ;  ;