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上海理工大学健康科学与工程学院 上海 200093
Qin Yanbin, male, Ph. D., associate professor, School of Health Science and Engineering, University of Shanghai for Science and Technology, 86-21-55275542, E-mail: qyb110714@usst.edu.cn. Research fields: cryogenic and refrigeration technology, food freezing and cold storage.
Received:27 May 2024,
Revised:23 September 2024,
Accepted:26 September 2024,
Published:16 August 2025
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Qin Yanbin, Zhang Shaojie, Shen Yuantao, et al. Effect of Four Preservation Techniques on the Storage Quality of Rainbow Trout[J]. Journal of refrigeration, 2025, 46(4): 163-170.
Qin Yanbin, Zhang Shaojie, Shen Yuantao, et al. Effect of Four Preservation Techniques on the Storage Quality of Rainbow Trout[J]. Journal of refrigeration, 2025, 46(4): 163-170. DOI: 10.12465/j.issn.0253-4339.2025.04.163.
为研究不同保鲜技术对水产品在贮藏过程中品质及理化特性的影响,以虹鳟鱼为研究对象,以挥发性盐基氮含量(TVB-N)、菌落总数(TVC)、pH值和汁液损失率为指标,对比了冷藏(4 ℃±1 ℃)、冰温(-1 ℃±1 ℃)、高压静电场(3 kV/m)+冰温(-1 ℃±1 ℃)以及高压静电场(3 kV/m)+复合生物保鲜剂(质量分数为1.40%壳聚糖+0.05%溶菌酶+1.30%茶多酚)+冰温(-1 ℃±1 ℃)这4种技术的保鲜效果。结果表明:高压静电场协同复合生物保鲜剂处理能有效抑制微生物生长,冷藏组和冰温组样品分别在第10天和第12天时已腐败,其TVC分别达到7.12和7.13 lg(CFU/g),而高压静电场+冰温和高压静电场+复合保鲜剂+冰温2组的TVC在第12天时分别仅为6.32和5.89 lg(CFU/g)。在贮藏第14天时,高压静电场+复合保鲜剂+冰温组的TVB-N仅为20.17 mg/100 g,远低于其他3组。研究表明,相比于冷藏和冰温贮藏,高压静电场+复合保鲜剂处理可有效延缓鱼肉腐败进程,使虹鳟鱼货架期延长4 d。
Rainbow trout were used as a research subject to investigate the effects of different preservation techniques on the quality and physicochemical properties of aquatic products during storage. Total volatile basic nitrogen (TVB-N)
total viable count (TVC)
pH
and drip loss rate were used as technical indicators. A comparative study was conducted on the preservation effects of four preservation methods on rainbow trout flesh
including refrigeration (4 ℃±1 ℃)
ice temperature (-1 ℃±1 ℃)
high-voltage electrostatic field (HVEF
3 kV/m) + ice temperature (-1 ℃±1 ℃)
and HEVF (3 kV/m) + compound biological preservative (mass fraction: 1.40% chitosan + 0.05% lysozyme + 1.30% theaflavin) + ice temperature (-1 ℃±1 ℃). The results showed that treatment with HVEF + compound biological preservatives effectively inhibited microbial growth. Samples from the refrigeration and ice temperature groups had already decayed by the 10th and 12th day
with TVC reaching 7.12 lg (CFU/g) and 7.13 lg (CFU/g)
respectively. In contrast
the TVC values of the HVEF + ice temperature and HVEF + compound biological preservative + ice temperature groups were only 6.32 lg (CFU/g) and 5.89 lg (CFU/g) on the 12th day. On the 14th day of storage
the TVB-N of the HVEF + compound preservative + ice temperature group was only 20.17 mg/100 g
which was much lower than that of the other three groups. This investigation indicates that compared to refrigeration and ice-temperature storage
treatment with HVEF + composite preservatives can effectively delay the spoilage process of fish and extend the shelf life of rainbow trout by four days.
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