Journal
FISHERIES RESEARCH
Volume 112, Issue 1-2, Pages 44-51Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fishres.2011.08.009
Keywords
Atlantic cod; Gadus morhua; Quality; Trawl; Long lining; Fishing gear
Categories
Funding
- Research Council of Norway
- Research Council of Norway (BIA) [179893]
Ask authors/readers for more resources
The quality of Atlantic cod from one trawl catch and one longline catch, caught at the same time and location, was assessed and compared. In addition, the effect of ice storage in 7 days on quality parameters was investigated. No differences between the cod from the two catches were observed on microbial activity and drip loss. Trawl caught cod had decreased pH and increased TMA compared to longlined cod. Catch Damage Index showed that trawling gave increased damages compared to longlining, where trawling resulted in poor bleeding and bruises, while longlining resulted in gaffing damages. Both color and sensory analyses confirmed the poor bleeding of trawl caught cod. In addition, the longline caught cod had increased overall sensory quality and increased lightness. Water holding capacity was decreased in trawled cod compared to longlined cod together with increased protein denaturation measured by differential scanning calorimetry. Texture analysis showed increased firmness in longlined cod. Cod loins stored on ice for 7 days encountered decreased quality attributes evaluated by sensory methods, firmness, water holding capacity and lightness, while microbial growth, pH and protein denaturation of the loin increased. In this study, the catch of Atlantic cod caught by longline had a better overall quality compared to the catch of cod caught by trawl. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available