The Combined Efficacy of Superchilling and High CO2 Modified Atmosphere Packaging on Shelf Life and Quality of Swimming Crab (Portunus trituberculatus) |
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| Authors: | B Sun Y Zhao J Yu J Ling H Shang |
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| Institution: | 1. Faculty of College of Food Science and Engineering, Ocean University of China, Qingdao, China;2. Faculty of Research institute of Agricultural product, Ningbo’s Academy of Agricultural Sciences, Ningbo, Zhejiang Province, China |
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| Abstract: | The combined effect of superchilling and modi?ed atmosphere packaging (MAP) treatment on the quality of swimming crab during storage was investigated. As a result, signi?cantly (p < 0.05) higher inhibitor effects on total aerobic plate counts (TPCs) were observed in MAP treatments than in control (air package). Additionally, chemical analysis results showed that MAP treatments with 40–80% carbon dioxide (CO2) were highly effective in maintaining lower total volatile basic-nitrogen (TVB-N), trimethylamine-nitrogen (TMA-N), pH, and thiobarbituric acid reactive substances (TBARS) values in swimming crab (p < 0.05). On the other hand, the brightness (L*) results also con?rmed that this combined treatment showed a positive effect on the stability of color during storage. Results also indicated that the combination of superchilling and 60% CO2 MAP treatment prolonged the shelf life of swimming crab to 15–20 days. However, 100% CO2 MAP treatment showed a negative effect on the drip loss and overall acceptability, indicating CO2 content should be considered as a critical factor in this promising technology. |
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| Keywords: | Swimming crab superchilling storage modified atmosphere packaging quality |
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