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Effects of Modified Atmosphere Packaging with Different Gas Ratios on the Quality Changes of Golden Pompano (Trachinotus ovatus) Fillets during Superchilling Storage

文献类型： 外文期刊

作者： Zhang, Xiaofan 1 ; Pan, Chuang 3 ; Chen, Shengjun 2 ; Xue, Yong 1 ; Wang, Yueqi 2 ; Wu, Yanyan 4 ;

作者机构： 1.Ocean Univ China, Coll Food Sci & Engn, Qingdao 266003, Peoples R China

2.Sanya Trop Fisheries Res Inst, Sanya 572000, Peoples R China

3.Chinese Acad Fishery Sci, Key Lab Aquat Prod Proc, Minist Agr & Rural Affairs, Natl R&D Ctr Aquat Prod Proc Technol,South China, Guangzhou 510300, Peoples R China

4.Dalian Polytech Univ, Collaborat Innovat Ctr Seafood Deep Proc, Dalian 116034, Peoples R China

关键词： Trachinotus ovatus; golden pompano; modified atmosphere packaging; superchilling storage; physicochemical properties; principal component analysis

期刊名称：FOODS （ 影响因子：5.561； 五年影响因子：5.94 ）

ISSN：

年卷期： 2022 年 11 卷 13 期

页码：

收录情况： SCI

摘要： The quality changes of golden pompano fillets in air packaging (AP) and modified atmosphere packaging (MAP) with 30% CO2/70% N-2, 50% CO2/50% N-2, and 70% CO2/30% N-2 were evaluated under superchilling (-3 degrees C). The results showed that the whiteness of fillets decreased during storage. The rate of pH increase of MAP was significantly slower than in AP groups, in which MAP with 70% CO2/30% N-2 effectively suppressed the PH. Interestingly, the hardness decreased on day five following the treatments, followed by a relatively stationary trend. MAP could greatly suppress the increase of total volatile basic nitrogen (TVB-N) contents of fillets compared to fillets packed in AP. All MAP groups of fillets maintained first-grade freshness throughout storage, while the AP samples decreased to second-grade freshness on about the 25th day. MAP with 70% CO2/30% N-2 and MAP with 50% CO2/50% N-2 had the best results in inhibiting protein degeneration and explanation. Unexpectedly, drip loss of fillets in MAP far exceeded the AP group during storage, which causes sensory discomfort. Anaerobic plate count (APC) of fillets in AP exceeded the consumption limit of 6.7 log CFU/g on day 26 (6.75 log CFU/g on the 26th day), whereas the MAP was still microbiologically acceptable after 30 days of storage (6.43, 6.41, 6.22 log CFU/g, respectively). Considering physicochemical and microbiological parameters, the shelf life of fillets packed in AP was 25 days. MAP treatments could prolong the shelf life of fillets by similar to 4-5 days compared to AP. Overall, MAP with 70% CO2/30% N-2 gas ratio was best for inhibiting the quality deterioration of fillets. Furthermore, principal component analysis (PCA) was performed to evaluate the critical indicators of quality deterioration of the fillets. Two principal components were determined by dimensionality reduction, in which the contribution of the first principal component was centrifugal loss > hardness > TVB-N > APC > CO2 solubility > TBARs > drip loss > pH, which mainly reflected the degree of microbial proliferation, protein hydrolysis, and oxidation. The contribution of the second principal component was pH > TBRAs > drip loss > APC > CO2 solubility > TVB-N > hardness > centrifugal loss, indicating a high correlation between lipid oxidation and microbial proliferation index.

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