Cold storage of Pacific oysters out of water: biometry, intervalval water and sensory assessment
Due to the important economic activity of oyster production in France, microalgal toxic events represent a significant constraint for shellfish farmers who face closures of bivalve production-sites. The frequency of closures of 3 weeks or less represents half of the total closures along the French c...
| Published in: | International Journal of Food Science & Technology |
|---|---|
| Main Authors: | , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley-blackwell
2011
|
| Subjects: | |
| Online Access: | https://archimer.ifremer.fr/doc/00041/15245/12840.pdf https://doi.org/10.1111/j.1365-2621.2011.02686.x https://archimer.ifremer.fr/doc/00041/15245/ |
| Summary: | Due to the important economic activity of oyster production in France, microalgal toxic events represent a significant constraint for shellfish farmers who face closures of bivalve production-sites. The frequency of closures of 3 weeks or less represents half of the total closures along the French coasts. Cold storage could be a simple and affordable solution for temporary and short-term storage before commercialisation. A stock of marketable Pacific oyster Crassostrea gigas was therefore stored during 22 days in non-immersed conditions at 3 degrees C with 100% humidity. At the end of the experiment, the oyster mortality rate remained at a low level of less than 3.5%. The sensory attributes, odour, appearance, texture and flavour, did not show significant variations. However, the oyster total weight and fresh flesh weight exhibited losses of 10.5% and a 16.6% after 15 days of storage. At the same time, intervalval water showed a decrease in quality with 20% of the samples characterized by an absence of intervalval water with a flesh more or less moist. These results suggested that the cold storage represents a partial solution to sustain the commercialisation of bivalves during closures of 15 days. |
|---|