制冷学报2016，Vol.37Issue(6)：104-112,9.DOI:10.3969/j.issn.0253-4339.2016.06.104
不同包装对风冷冰箱中冷冻猪肉品质的影响
Effects of Different Packaging on the Quality of Frozen Pork in Frost-free Refrigerator
摘要
Abstract
Frost⁃free refrigerator is becoming more and more popular in the market. But the quality of frozen pork stored in the frost⁃free refrigerator decreased obviously with time. In this paper, the effect of three packaging types ( no packaging,sealed packaging and air free packaging) on the quality of frozen pork was studied to find a effective and convenient method to maintain its quality. Weight loss rate, dripping loss rate, color⁃difference, texture, shear force and microstructure of frozen pork were taken as the factors to evaluate the effec⁃tiveness of packaging. The results showed that weight loss rate, L∗value and b∗value of the control group were significantly higher than that of sealed packaging and air free packaging. Dripping loss rate, a∗ value, texture, and shear force of the control group was signifi⁃cantly lower than that of sealed packaging and air free packaging. The microstructure of the control group was severely damaged with mus⁃cle fiber broken. After 60 days, weight loss rate of air free packaging was significantly smaller than that of sealed packaging. There were no significant differences in dripping loss rate, color⁃difference, texture and shear force between air free packaging and sealed packaging. The results of this study proved that the sealed packaging and air free packaging are feasible to maintain the quality of frozen pork, while air free packaging is better than that of sealed packaging, especially for long⁃term storage.关键词
风冷冰箱/冷冻猪肉/包装方式/冻肉品质/干耗Key words
frost-free refrigerator/frozen pork/packaging/quality/weight loss分类
信息技术与安全科学引用本文复制引用
李先明,刘宝林,李维杰,宋晓燕..不同包装对风冷冰箱中冷冻猪肉品质的影响[J].制冷学报,2016,37(6):104-112,9.基金项目
“十二五”国家科技支撑计划项目（2013BAD19B01）。@@@@The project was supported by the National Key Technology R＆D Program of Chi-na for the 12th Five-year Plan Period （）
