摘要
为探讨南美白对虾无水保活运输的适宜温度和时间,本文研究了对虾低温休眠温度,测定了4、10℃条件下模拟运输不同时间段的存活率,分析了对照组、休眠组、运输组和运输后复水唤醒30 min,4种状态下对虾肌肉品质以及生理应激指标。结果表明,南美白对虾的休眠温度为(10.0±0.2)℃;模拟运输12 h内,两温度组存活率均为100%,36 h后两组存活率均低于30%。不同运输温度对肉质指标影响不显著(P>0.05);除蒸煮损失率,相同温度下运输应激对水分、粗蛋白、粗脂肪含量影响均不显著(P>0.05)。生理应激指标中,两种温度下模拟运输24h后,肌糖原、琥珀酸脱氢酶(succinate dehydrogenase,SDH)、乳酸脱氢酶(lactate dehydrogenase,LDH)和丙二醛(malondialdehyde,MDA)含量与对照组相比均发生显著变化(P<0.05),且复水后也均不能恢复到对照组水平。南美白对虾可以通过低温诱导休眠的方式进行无水保活运输,10℃适于18 h内短途运输,长途运输则可选用4℃。
In order to explore the suitable temperature and time for waterless live transportation of Litopenaeus vannamei,this paper investigated the low dormancy temperature and determined the survival rate at different time periods of simulated transportation under 4 and 10℃.The muscle quality and physiological stress indexes were analyzed in four states:Control group,dormant group,transport group and recovered for 30 min group.The results indicated that the dormancy temperature of Litopenaeus vannamei was(10.0±0.2)℃.The survival rates of two temperature groups were both 100%within 12 h of simulated transportation and lower than 30%after 36 h.The effects of different transport temperatures on muscle quality indexes were not significant(P>0.05).Except for the cooking loss rate,the effects of transport stress on moisture,crude protein and crude fat content at the same temperature were not significant(P>0.05).Compared with the control,the contents of muscle glycogen,succinate dehydrogenase(SDH),lactate dehydrogenase(LDH)and malondialdehyde(MDA)were significantly(P<0.05)changed after 24 h of simulated transportation at both temperature groups,and none of them could be restored to the control level after recovery.Litopenaeus vannamei can be transported without water by means of low temperature-induced dormancy,and 10℃is suitable for short-distance transportation within 18 h,while 4℃can be selected for long-distance transportation.
作者
许睿智
刘峰
陈依楠
殷海琪
朱绍彰
刘春娥
XU Ruizhi;LIU Feng;CHEN Yinan;YIN Haiqi;ZHU Shaozhang;LIU Chune(Yantai Institute of China Agricultural University,Yantai 264670,China)
出处
《食品工业科技》
CAS
北大核心
2023年第5期331-337,共7页
Science and Technology of Food Industry
基金
山东省自然科学基金(ZR202103030164)
烟台市科技计划(2020XDRH103)。
关键词
南美白对虾
低温休眠
无水保活运输
肌肉品质
生理应激
Litopenaeus vannamei
low-temperature dormancy
waterless live transportation
muscle quality
physiological stress
