食品与发酵工业2025，Vol.51Issue(19)：326-335,10.DOI:10.13995/j.cnki.11-1802/ts.041643
响应面法优化差压预冷最佳参数对灵武长枣贮藏品质的影响
Parameters optimization of differential pressure precooling by response surface methodology and their effects on the storage quality of Lingwu long jujubes
摘要
Abstract
Concerning the problems of traditional static precooling,including the slow cooling speed,low cooling uniformity,and the consequent quality loss during postharvest storage,this study employed response surface methodology to optimize the parameters of differ-ential pressure precooling using Lingwu long jujubes as the model materials.Furthermore,the impacts of the precooling parameters on the storage quality of Lingwu long jujubes during preservation were investigated.The results demonstrated that the optimal precooling effects were obtained when the air supply temperature was 0℃,the air velocity was 1.5 m/s,with a punching diameter on the plastic tent of 25 mm and a spacing between turnover baskets of 100 mm.The precooling efficiency and cooling uniformity achieved 5.74 hours and 0.106,respectively.The storage experiments after precooling indicated that differential pressure precooling could significantly reduce the weight loss rate of Lingwu long jujubes,maintain their excellent appearance,and delay the discoloration of the fruits.Meanwhile,the re-spiratory intensity was inhibited and the aging process was delayed,with relatively high contents of soluble solids and titratable acids.Mo-reover,differential pressure precooling also significantly decreased the activities of cellulase,β-galactosidase,and polygalacturonase in Lingwu long jujubes during storage.As a result,the degradation of cell walls was postponed,the fruit softening was inhibited,and the storage quality of Lingwu long jujubes was effectively improved.This study provides an efficient,energy-saving,and widely applicable pre-cooling treatment method for the storage of Lingwu long jujubes,which is of great significance for their industrial development.Further-more,it also offers a theoretical basis for the quality maintenance of other fruits and vegetables during transportation and preservation.关键词
灵武长枣/响应面法/差压预冷/贮藏品质/应用价值Key words
Lingwu long jujube/response surface methodology/differential pressure precooling/storage quality/application value引用本文复制引用
陶胜,张瑞,李宇航,庞玲玲,陈兰,姜瑜倩,李喜宏..响应面法优化差压预冷最佳参数对灵武长枣贮藏品质的影响[J].食品与发酵工业,2025,51(19):326-335,10.基金项目
山东省重点研发计划项目(2024TZXD033) （2024TZXD033）
陕西省自然科学基础研究计划项目(2024JC-YBQN-0175) （2024JC-YBQN-0175）
