Collagen content in farmed Atlantic salmon (Salmo salar, L.) and subsequent changes in solubility during storage on ice

Eckhoff, Karen M.; Aidos, Isabel; Hemre, Gro‐Ingunn; Lie, Øyvind

doi:10.1016/s0308-8146(97)00206-9

Cited by 56 publications

(38 citation statements)

References 22 publications

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“…This decrease was not observed in salmon (Eckhoff et al 1998) after 15 days of storage, nor in trout (Sato et al 1991) after three days. Montero and Borderı´as (1990) studied the changes in muscle-collagen solubility in fish during cold storage and found a significant increase after one day of cold storage.…”

Section: Discussionmentioning

confidence: 71%

“…The first step of this method, the hydrolysis of the sample, was slightly modified from Eckhoff et al (1998) to determine the hydroxyproline in the ASC, PSC, and ISC solutions obtained from the fish muscle. To 1 ml of the solutions, 10 ml of 6 M CIH was added and submitted to acid hydrolysis at 110°C for 24 h and then placed in a dry oven.…”

Section: Determination Of Collagen Solubilitymentioning

confidence: 99%

“…Pepsin has been routinely used to solubilize collagen by cleavage of the bonds without breaking the triple helix (Sato 1993;Eckhoff et al 1998). This contributes to the disorganization of the collagen molecule acting on the crossed molecular bonds (Hultin 1993).…”

Section: Introductionmentioning

confidence: 99%

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Changes in muscle collagen content during post mortem storage of farmed sea bream (Sparus aurata): influence on textural properties

et al. 2005

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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 waterholding 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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Section: Discussionmentioning

confidence: 71%

Section: Determination Of Collagen Solubilitymentioning

confidence: 99%

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Changes in muscle collagen content during post mortem storage of farmed sea bream (Sparus aurata): influence on textural properties

et al. 2005

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“…In Atlantic salmon (Salmo salar) the acid-soluble collagen fraction, specifically type V collagen, appears to increase during storage. 7,8 Sato et al 9 -11 have also reported that type V collagen became more soluble in rainbow trout (Oncorhynchus mykiss) and sardine (Sardinops melanosticta) muscle during chilled storage, and that this correlated well with softening of the muscle. Other constituents of the ECM may also be degraded during post mortem storage.…”

Section: Introductionmentioning

confidence: 96%

Gelatinolytic activities in muscle of Atlantic cod (Gadus morhua), spotted wolffish (Anarhichas minor) and Atlantic salmon (Salmo salar)

Lødemel

Olsen

2003

J Sci Food Agric

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The gelatinolytic activity in muscle from Atlantic cod (Gadus morhua), spotted wolffish (Anarhichas minor) and Atlantic salmon (Salmo salar) was studied using gelatin SDS-PAGE, gelatin affinity chromatography and enzyme inhibitors. These fish species are known to differ markedly in fillet softening and gaping post mortem. Atlantic cod, which is a promising species for cold water marine aquaculture, often shows such negative properties, particularly after being well fed. Gelatinolytic activity bands were present in all three species. Using gelatin chromatography and enzyme inhibitors, both serine proteinases and metalloproteinases were detected in wolffish and cod muscle, while only the latter were found in salmon muscle. Activation of the metalloproteinases by p-aminophenylmercuric acetate (APMA) resulted in a shift in activity from higher to lower molecular weight, as is known for mammalian matrix metalloproteinases. In all three species the molecular weight of the metalloproteinases was lowered from approximately 80 to about 70 kDa by activating with APMA.

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“…Collagen extracted from fish swim-bladders, commonly called isinglass, has traditionally been used to clarify beer Hickman et al 2000). Extraction from terrestrial animals is well established, however fish skins also provide excellent potential for extraction and this has been described by Singh et al (2011), Sadowska and Kolodziejska (2005), Muyonga et al (2004), Aidos et al (1999), Eckhoff et al (1998) amongst others. Although yields from fish skins are generally higher than from mammalian skins (Yunoki et al 2003), there are differences in structure and amino/imino acid sequences which can change the properties of fish collagens compared to those from higher vertebrates.…”

Section: Collagenmentioning

confidence: 99%

Perspectives on the Utilization of Aquaculture Coproduct in Europe and Asia: Prospects for Value Addition and Improved Resource Efficiency

Newton

Telfer

Little

2013

Critical Reviews in Food Science and Nutrition

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Faculty of Natural SciencesInstitute of Aquaculture Doctor of PhilosophyBy-products and mortalities from aquaculture have often posed significant challenges to the industry because of their low value resulting in high costs and environmental impact from their disposal. However increasing interest is being expressed in their utilisation to add value to the aquaculture industry and provide synergies with industries which had previously been in competition with aquaculture.Current and prospective processing by-product and farm mortality utilisation strategies were reviewed along with regulations and standards which aim to control their use and protect against human and animal health hazards.The role of aquaculture and fishery by-products in the supply of fishmeal was investigated and it was found that both sectors had the potential to contribute to increasing global supply. There were significant quantities of processing by-products identified which could be directed to fishmeal manufacture but there were also significant amounts of fish production which were not being processed in some regions and could also add to supplies. Processing by-products from aquaculture species often exceed 50% of the production by mass and therefore their efficient utilisation is of significant importance to the overall performance of the value chain. Their utilisation ii strategies are diverse and in some circumstances offer the possibility to add significant value.Life Cycle Assessment (LCA) is increasingly being used to inform decision makers and consumers about the environmental performance of goods and services to make choices on best practices and informative decisions on purchasing choices. Current methodology in LCA was critiqued and developed to be used for identifying disproportionate impacts from by-product industries and comparative assessment of the eco-efficiency of value chains from Thai shrimp, Vietnamese Pangasius catfish and Scottish salmon aquaculture.New LCA methodology was developed assessing the eco-efficiency of co-products as a whole and in relation to a tonne of edible yield. Measuring the impact of the by-product industry in relation to their edible yield gave different results to measuring their ecoefficiency between the three study species. It was found that the Thai shrimp value chain was the most eco-efficient when by-products were directed to chitosan and hydrolysate manufacture, but production of the salmon was the least impacting between the species in terms of edible yield. Pangasius was the most environmentally impacting of the three species value chains using both methods. It was also found that the upstream impacts of fish and shrimp production, especially feed manufacture, contributed most to the environmental impact in most circumstances, using both economic and mass allocation.Although the methodology produced interesting results, there were some drawbacks and the data sets also had several gaps which led to some assumptions, which could have skewed the results and interpretation.The cau...

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Collagen content in farmed Atlantic salmon (Salmo salar, L.) and subsequent changes in solubility during storage on ice

Cited by 56 publications

References 22 publications

Changes in muscle collagen content during post mortem storage of farmed sea bream (Sparus aurata): influence on textural properties

Changes in muscle collagen content during post mortem storage of farmed sea bream (Sparus aurata): influence on textural properties

Gelatinolytic activities in muscle of Atlantic cod (Gadus morhua), spotted wolffish (Anarhichas minor) and Atlantic salmon (Salmo salar)

Perspectives on the Utilization of Aquaculture Coproduct in Europe and Asia: Prospects for Value Addition and Improved Resource Efficiency

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