Effect of a chitosan-alginate bilayer coating incorporated with lysozyme on quality of refrigerated turbot fillets
Abstract Preservation properties of chitosan (CS) and sodium alginate (ALG) coatings are widely investigated, but their bilayer composite coating application to fish preservation is limited. The aim of present study was to evaluate the quality changes in 4°C turbot fillets treated with a bilayer coa...
| Published in: | IOP Conference Series: Earth and Environmental Science |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
IOP Publishing
2021
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1088/1755-1315/792/1/012016 https://iopscience.iop.org/article/10.1088/1755-1315/792/1/012016 https://iopscience.iop.org/article/10.1088/1755-1315/792/1/012016/pdf |
| Summary: | Abstract Preservation properties of chitosan (CS) and sodium alginate (ALG) coatings are widely investigated, but their bilayer composite coating application to fish preservation is limited. The aim of present study was to evaluate the quality changes in 4°C turbot fillets treated with a bilayer coating based on lysozyme-CS (LZ-CS) coating layer and ALG coating layer. Changes in total viable counts (TVC), texture profiles, and physiochemical indexes including pH, total volatile basic nitrogen (TVB-N), and K value were examined. The results indicated that bilayer coating was more effective than LZ-CS and ALG monolayer coatings in preservation of turbot fillets. The bilayer coating significant inhibited the increase of TVC, pH, TVB-N, and K value, and maintained better texture characteristics of turbot fillets during storage. Therefore, the bilayer coating on the turbot is more superior to monolayer coatings, which would have potential applications on fish preservation. |
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