Changes in muscle collagen content during post mortem storage of farmed sea bream (Sparus aurata): influence on textural properties
Suárez, M.D.; Abad, M.; Ruiz-Cara, T.; Estrada, J.D.; García-Gallego, M. (2005). Changes in muscle collagen content during post mortem storage of farmed sea bream (Sparus aurata): influence on textural properties. Aquacult. Int. 13(4): 315-325. https://dx.doi.org/10.1007/s10499-004-3405-6
In: Aquaculture International. Springer: London. ISSN 0967-6120; e-ISSN 1573-143X, meer
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| Trefwoorden |
Chemical compounds > Organic compounds > Proteins > Collagen
Musculoskeletal system > Muscles
Organisms > Aquatic organisms > Animals > Aquatic animals > Marine animals > Fishes > Aquatic animals > Marine fishes > Perciformes > Sea bream
Storage > Cold storage
Sparus aurata Linnaeus, 1758 [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- Suárez, M.D.
- Abad, M.
- Ruiz-Cara, T.
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- Estrada, J.D.
- García-Gallego, M.
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| Abstract |
The changes in collagen content and its solubility in sea bream muscle were studied for variable storage times following the death of the fish, and these variables were related to the evolution of physical parameters important for consumer acceptance: firmness and water-holding capacity (WHC). The results show that the collagen content in muscle diminished slightly over storage time and that this variable was directly related to firmness but inversely related to the water-holding capacity. With regard to collagen solubility, a decline was detected in acid-soluble collagen (ASC) in the first few post mortem hours, perhaps related to the end of rigor mortis that occurs at these stages. Pepsin-soluble collagen (PSC) increased, while insoluble collagen (ISC) decreased from 96 h, coinciding with a loss of firmness. This softening can be explained as a result of specific collagenases acting on the insoluble fraction of the collagen. |
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