Wang Qiang, Ma Jing, Chen Qian, Liu Qian, Wang Hui, Sun Fangda, Cao Jinxuan, Kong Baohua
College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
Key Laboratory of Geriatric Nutrition and Health, (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China.
Food Res Int. 2025 Nov;219:117091. doi: 10.1016/j.foodres.2025.117091. Epub 2025 Jul 28.
The effects of modified atmosphere packaging (MAP) with different O and CO concentrations (M40: 40 % O/60 % CO and M80: 80 % O/20 % CO) on the bacterial community, volatile organic compounds (VOCs), color, and shelf-life of porcine longissimus muscle (LM) were investigated during 14 days of storage at 4 °C. The results indicated that the LM samples from M40 treatment exhibited significantly (P < 0.05) lower a* and L* values, as well as higher shear force values, compared to the M80 treatment. Notably, the M40 treatment significantly (P < 0.05) inhibited bacterial growth, reduced lipid oxidation and protein degradation, delayed quality deterioration, and extended the shelf life of the LM by three days relative to the M80 treatment. Moreover, a total of 62 VOCs were identified during storage. Brochothrix thermosphacta, Pseudomonas lundensis, and Lactobacillus sakei were the most dominant species. Correlation between bacterial succession and VOCs revealed that Pseudomonas lundensis was positively related to four aldehydes (e.g., decyl aldehyde, benzaldehyde, trans,trans-2,4-nonadienal, and trans-2-dodecenal) and was predicted as specific spoilage organism.
研究了不同氧气和二氧化碳浓度的气调包装（M40：40%氧气/60%二氧化碳和M80：80%氧气/20%二氧化碳）对猪背最长肌（LM）在4℃储存14天期间细菌群落、挥发性有机化合物（VOCs）、颜色和货架期的影响。结果表明，与M80处理相比，M40处理的LM样品的a和L值显著（P<0.05）较低，剪切力值较高。值得注意的是，M40处理显著（P<0.05）抑制了细菌生长，减少了脂质氧化和蛋白质降解，延缓了品质劣化，并且相对于M80处理，将LM的货架期延长了三天。此外，在储存期间共鉴定出62种VOCs。嗜热栖热放线菌、伦德假单胞菌和清酒乳杆菌是最主要的菌种。细菌演替与VOCs之间的相关性表明，伦德假单胞菌与四种醛类（如癸醛、苯甲醛、反,反-2,4-壬二烯醛和反-2-十二碳烯醛）呈正相关，并被预测为特定腐败菌。
