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气调包装对冷藏过程中秋刀鱼品质变化的影响 被引量:2

Effect of Modified Atmosphere Packaging on the Quality Changes of Pacific Saury during Cold Storage
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摘要 研究N_2和CO_2不同比例混合对气调包装秋刀鱼在冷藏条件下pH值、菌落总数和挥发性盐基氮(total volatile basic nitrogen,TVB-N)值等理化指标和感官评价的影响。结果表明:40%CO_2+60%N_2混合气体气调包装秋刀鱼各项指标的变化速率明显低于其他各组(P<0.05),其他各组秋刀鱼在第9天时菌落总数已超过国家标准4.0(lg(CFU/g)),发生腐败变质,生成不良气味,而40%CO_2+60%N_2组则将这一现象推迟3 d,延长至12 d,CO_2气体比例过高或过低均会加速气调包装秋刀鱼的腐败变质。 This research was concerned with the effect of modified atmosphere packaging (MAP) using different N2 and CO2 combinations on the changes in physicochemical properties such as pH, aerobic plate count and total volatile basic nitrogen (TVB-N) as well as sensory evaluation of Pacific saury during cold storage. The results showed that the atmosphere consisting of 40% CO2 + 60% N2 significantly slowed down the rates of change of all investigated parameters when compared with other groups (P 〈 0.05). On day 9 of storage, the fish in the other groups showed an aerobic plate count higher than the national standard limit of 4.0 (1g(CFU/g)), being spoiled and smelling bad. The 40% CO2 + 60% N2 group delayed this phenomenon by three days and extended the shelf life to 21 days. However, both too high and too low CO2 concentrations accelerated the spoilage process of modified atmosphere packaged Pacific saury.
出处 《肉类研究》 北大核心 2017年第2期28-32,共5页 Meat Research
基金 "十三五"国家重点研发计划重点专项(2016YFD0400703)
关键词 气调包装 秋刀鱼 食用品质 modified atmosphere packaging Pacific saury eating quality
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