Stress relaxation test for monitoring post mortem textural changes of ice-stored cod (Gadus morhua L.)
The possibilities of using the stress relaxation test as a nondestructive method to monitor post-mortem textural changes of ice-stored cod have been evaluated. The stress relaxation tests were performed in gutted cod. Fish were compressed by 5% and deformation was kept constant for 60 s. The relaxat...
| Published in: | Journal of Food Science |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
Wiley-VCH
2004
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10261/101953 https://doi.org/10.1111/j.1365-2621.2004.tb06344.x |
| Summary: | The possibilities of using the stress relaxation test as a nondestructive method to monitor post-mortem textural changes of ice-stored cod have been evaluated. The stress relaxation tests were performed in gutted cod. Fish were compressed by 5% and deformation was kept constant for 60 s. The relaxation curves obtained were fitted to nonlinear and linear regression models. Nonlinear regressions with 2 or 3 exponential terms and the linear regression model could be fitted to the relaxation curve of ice-stored cod, although the three-terms exponential models gave the best results for assessing the quality of ice-stored cod (maximum relative difference ≤ 2% and R2 > 0.999). The highest differences were found between pre-rigor and in-rigor states. Peer Reviewed |
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