Quality changes of Larimichthys crocea pretreated by ultrasonic-assisted immersion under cold storage at 4 °C

被引:5
|
作者
Zhang, Chenchen [1 ]
Wang, Jinfeng [1 ,2 ,3 ,4 ]
Xie, Jing [1 ,2 ,3 ,4 ]
机构
[1] Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai, Peoples R China
[2] Shanghai Ocean Univ, Shanghai Profess Technol Serv Platform Cold Chain, Shanghai, Peoples R China
[3] Shanghai Ocean Univ, Natl Expt Teaching Demonstrat Ctr Food Sci & Engn, Shanghai, Peoples R China
[4] Shanghai Ocean Univ, Shanghai Engn Res Ctr Aquat Prod Proc & Preservat, Shanghai, Peoples R China
关键词
Large yellow croaker; Ultrasound; Pretreatment; Cold storage; Quality characteristics; CHEMICAL-COMPOSITION; LIPID OXIDATION; DEGREES-C; FILLETS; ENHANCEMENT; CHITOSAN; WATER; CARP; MUSCLE; ACID;
D O I
10.1016/j.ultsonch.2023.106484
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The effects of several ultrasonic treatments during cold storage at 4 & DEG;C on the quality of large yellow croaker (Pseudosciaena crocea) were suggested. Large yellow croaker fillets were divided into six different groups for treatment. (a) CK (without any treatment), (b) A (single frequency 20 kHz), (c) B (single frequency 40 kHz), (d) C (left and right dual frequency 20 + 40 kHz), (e) D (orthogonal dual frequency: left and right 40 kHz, upper and lower 20 kHz), and (f) E (orthogonal dual frequency: left and right 20 kHz, upper and lower 20 kHz). The samples were divided into six groups, placed in sterile PE bags, and chilled to 4 & DEG;C. In order to determine the impact of ultrasonic treatment on the quality of large yellow croaker during cold storage, microbial indicators and physical and chemical indicators were measured every 3 days. The total number of colonies, the percentage of psychrophilic bacteria, the sample's pH, and its TVB-N value were all shown to grow at a much slower pace following ultrasonic treatment. In addition, the antibacterial effect of dual frequency ultrasound was gradually better than that of single frequency ultrasound. In conclusion, Group D has a pretty excellent impact on preserving overall sample quality.
引用
收藏
页数:12
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