食品与机械2025，Vol.41Issue(4)：114-122,9.DOI:10.13652/j.spjx.1003.5788.2024.80848
低压静电场辅助冻藏对羊肝品质的影响
Effect of low-voltage electrostatic field-assisted freezing on sheep liver quality
摘要
Abstract
[Objective]To investigate the effect of a low-voltage electrostatic field(LVEF)on the quality of frozen sheep liver.[Methods]Fresh sheep liver was used as raw material,cooked,and then frozen under different temperatures(-20,-40℃)with LVEF assistance.Periodic sampling was conducted to analyze changes in color,thawing loss rate,pH value,hardness,chewiness,total viable count(TVC),total volatile basic nitrogen(TVB-N),vitamin A content,microstructure,and moisture distribution during storage.[Results]After 30 days of storage,the TVC,TVB-N content,pH value,and vitamin A content in the LVEF-assisted-40℃group were 3.38 lg(CFU/g),13.37 mg/100 g,6.06,and 8 016 μg/100 g,respectively.The thawing loss rate,color,hardness,and chewiness in this group were higher than those in the control group,indicating significantly better storage quality(P<0.05).Scanning electron microscopy images showed that the LVEF-treated samples exhibited a neatly and tightly arranged structure with minimal damage.T2 relaxation time analysis demonstrated that LVEF effectively prevented the transition of immobilized water into free water,thereby improving the water retention capacity of sheep liver.[Conclusion]LVEF can mitigate changes in the storage quality of sheep liver and reduce ice crystal damage to its internal structure after freezing.关键词
低压静电场/羊肝/冷冻/贮藏品质/冰晶生长Key words
low-voltage electrostatic field/sheep liver/frozen/storage quality/ice crystal growth引用本文复制引用
白嘉鑫,董同力嘎,格日勒图,李少博,云雪艳..低压静电场辅助冻藏对羊肝品质的影响[J].食品与机械,2025,41(4):114-122,9.基金项目
一流学科科研专项项目(编号:YLXKZX-NND-017) （编号:YLXKZX-NND-017）
国家现代农业产业技术体系资助(编号:CARS-38) （编号:CARS-38）
内蒙古自治区高等学校国际科技合作项目(编号:GHXM-003) （编号:GHXM-003）
自治区青年科技人才发展项目(创新团队)(编号:NMGIRT2310) （创新团队）
