石榴适温气调保鲜技术研究

Study on the Keeping Technology of Pomegranate by Controlled Atmosphere Storage at Appropriate Temperature

以陕西临潼净皮甜石榴为试验材料,研究了不同温度和气体成分条件下石榴贮期生理变化特性,通过对其外观色泽和内部籽粒品质比较,获得了理想的适温气调保鲜技术参数:贮藏温度4～5℃,相对湿度90%～95%,气体成分O2=3%、CO2=3%,在此条件下贮藏石榴100d,可溶性固形物含量14.2%,总酸含量0.384%,果皮褐变指数0.12,果实腐烂率3.5%,贮后果实色泽鲜艳,籽粒晶莹剔透,风味酸甜适口。

Physiological changes during storage of Shaanxi Lintong sweet pomegranate under different temperatures and gas components were studied in this paper. Optimum technical parameters of controlled atmosphere storage at appropriate temperature were obtained by comparison of skin appearance and seed quality. After 100 days of storage under the conditions of 4-5℃, 90%-95% relative humidity, and 3%O2 and 3%CO2 gas component, the soluble solids content of pomegranate was 14.2%, titratable acidity 0.384%, browning index of husk 0.12 and rotten rate of fruits 3.5%. The fruits remained in satisfactory state after storage.