Effects of Dry Ice and Superchilling on Quality and Shelf Life of Arctic Charr (Salvelinus alpinus) Fillets

The influence of different cooling techniques (dry ice/ice packs) and storage temperature (-2°C/3°C) to prolong the shelf life of Arctic charr (Salvelinus alpinus) fillets were evaluated by sensory analysis, physical methods, chemical and microbial analysis. The effects of storage temperature were s...

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Bibliographic Details
Published in:International Journal of Food Engineering
Main Authors: Bao, Huynh Nguyen Duy, Arason, Sigurjón, Þórarinsdóttir, Kristín Anna
Format: Article in Journal/Newspaper
Language:English
Published: Walter de Gruyter GmbH 2007
Subjects:
Online Access:http://dx.doi.org/10.2202/1556-3758.1093
http://www.degruyter.com/view/j/ijfe.2007.3.3/ijfe.2007.3.3.1093/ijfe.2007.3.3.1093.xml
https://www.degruyter.com/document/doi/10.2202/1556-3758.1093/xml
https://www.degruyter.com/document/doi/10.2202/1556-3758.1093/pdf
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Summary:The influence of different cooling techniques (dry ice/ice packs) and storage temperature (-2°C/3°C) to prolong the shelf life of Arctic charr (Salvelinus alpinus) fillets were evaluated by sensory analysis, physical methods, chemical and microbial analysis. The effects of storage temperature were stronger than of different cooling agents. Superchilling (-2°C) of fillets packed with dry ice resulted in 6 days extension of shelf life compared to chilling (3°C). The use of dry ice parallel to superchilling prolonged shelf life for 1 day compared to fillets stored with ice packs. No negative effects on quality of the fillets where detected that could be linked to cell destruction caused by partial freezing or to sour taste, caused by absorption of CO2 gas in fish flesh.