不同气调包装对冷藏白鲢鱼片质量的影响

Effect of modified atmosphere packaging on the quality of silver carp fillets under refrigeration

用不同的气调成分(50%O2/50%CO2、50%N2/50%CO2、50%CO/50%CO2)及空气(对照组)分别包装鲢鱼片,并在冷藏(4±2℃)条件下贮藏,研究不同的气调包装处理对鲢鱼片理化及微生物的影响。结果显示,随贮存期增加,气调包装能有效抑制需氧菌数、嗜冷性细菌及大肠菌群的生长;气调包装处理的pH比控制组低,但其汁液流失量较控制组高;所有包装的TVBN值及TBA值随贮存时间增加而上升,色泽则逐渐衰减。

Physical. biochemical, and microbial quality were investigated in silver carp fillets stored under modified atmosphere packaging （MAP） （50% 02/ 50%CO2,50%N2/50%CO2,50%CO/50%CO2） and a control （air） at 4 ±2℃ for 30 days. The results showed that MAP treated samples were superior to the control in terms of reducing the aerobic counts. psychrotrophic counts and total coliform counts during storage, The pH values of the MAP treated samples were lower than that of the control （p 〈 0.05）, but they showed higher drip Joss. The total volatile basic nitrogen and thiobarbituric acid values for all the tested samples increased with storage time. The color of the silver carp fillets gradually decreased.