作　　者： ; ; ; ;

机构地区： 新疆大学化学化工学院

出　　处： 《食品科学》 2010年第8期294-296,共3页

摘　　要： 采用亚硫酸盐放出SO2气体还原氯酸盐产生ClO2气体的发生方法,研制出一种新型固体ClO2保鲜剂,同时考察了3种添加剂(硅藻土、Na2CO3、CaO)的用量对固体保鲜剂释放ClO2气体释放速度和时间的影响,并将该新型固体ClO2保鲜剂应用于甜瓜贮藏保鲜实验。结果表明:采用Na2S2O5作为SO2气体释放剂可以有效还原氯酸钠,获得最佳的ClO2释放效果;通过选择不同的硅藻土、Na2CO3、CaO用量可以调控固体保鲜剂的ClO2释放速度和时间;固体ClO2保鲜剂保鲜处理金皇后甜瓜3个月后商品瓜率可达85%左右,保鲜效果显著。 A new solid-state chlorine dioxide preservative was designed based on the fact that chlorine dioxide gas is generated from chlorate exposed to sulphur dioxide gas donated by sulfates.The respective effects of diatomite,sodium carbonate and calcium oxide added to the preservative on chlorine dioxide release were explored.In addition,the applicability of the preservative in Golden Queen melon storage was evaluated.Results showed that sodium metabisulphite as a sulphur dioxide donor effectively reduced sodium chlorate to generate chlorine dioxide.The respective additions of diatomite,sodium carbonate and calcium oxide gave an effective regulation on the amount and time course of chlorine dioxide release.Golden Queen melons treated with the preservative consisting of sodium chlorate and sodium metabisulphite（1：1.5,m/m） exhibited a commodity rate of up to 85% after 3 months of storage under the conditions of 4-7 ℃ and 80%-90% relative humidity.This demonstrates an excellent preserving effect of the preservative on Golden Queen melons.

关 键 词： 二氧化氯 二氧化硫 保鲜 贮藏 甜瓜

领　　域： [农业科学] [农业科学]