Tag: Mince

Reports

Processing of nephrops lobster claw meat

Published:

01/03/2012

Authors:

Vigfús Ásbjörnsson, Óli Þór Hilmarsson, Guðjón Þorkelsson

Supported by:

AVS Fisheries Research Fund

Contact

Óli Þór Hilmarsson

Project Manager

oli.th.hilmarsson@matis.is

Processing of nephrops lobster claw meat

The project was about the utilization of previously unused raw materials from seafood, which is lobster meat. The project involved both the processing of lobster claw marrow and the processing of marrow products. Processing processes were defined using utilization factors and raw materials were studied. The processing properties of the marlin were studied and tested in two products. Estimated margins were measured to assess the feasibility of complete processing of lobster marrow products. Efforts will be made to make full use of all the raw materials that come from lobster clones so that value creation is maximized in the processing of food related to lobster claws from lobster claws.

A process for isolating mince from nephrops lobster claws was developed and the product tested for microbial, chemical and sensory quality. The mince was tested in two ready to eat products. Production cost, yield and gross margin were calculated in order to determine the feasibility of starting up an industrial scale production of the mince as well as for production of ready to eat products.  

View report

Reports

Equalization - increased quality and improved properties of fish mince / Homogenization - increased value of fish mince

Published:

01/05/2009

Authors:

Kristín Anna Þórarinsdóttir, Magnea G. Arnþórsdóttir, Irek Klonowski, Arnljótur Bjarki Bergsson, Sindri Sigurðsson, Sigurjón Arason

Supported by:

AVS R 011‐08 / AVS R&D Fund of Ministry of Fisheries in Iceland TÞS 071321007 /Technology Development Fund, RANNIS ‐ Icelandic Centre for Research

Contact

Sigurjón Arason

Chief Engineer

sigurjon.arason@matis.is

Equalization - increased quality and improved properties of fish mince / Homogenization - increased value of fish mince

The aim of the project was to develop a new production method for marrow mixture for injection into fish products based on leveling. The process gave good results in terms of stability, water resistance, appearance and sprayability of the mixture. The effects on micro-organisms varied according to the processes used and the raw materials, but they were not in all cases noticeable. The utilization and stability of the injected products increased significantly compared to untreated fillets and fillets injected with pure brine. Freezing significantly reduced the water resistance of the muscle. However, the benefit of the injection was in terms of total weight changes from processing until after thawing on the one hand and welding on the other. The report is a summary of experiments in the project "Membrane explosion - increased quality and improved properties of marrow". 

The aim of the project was to develop a process for homogenization of fish mince in solution for injection in fish products. The process was well suited for preparing a solution which had the right particle size, viscosity, water holding properties and stability for injection. The yield and stability of the protein injected fillets was increased compared to untreated fillets and fillets injected with pure salt brine. Freezing reduced water holding capacity but the yield was still higher than of untreated fillets, both after thawing and cooking.

View report

Reports

Process control for fishing, processing and processing of salted fish. Effects of different salting methods on the effect of flat fish

Published:

01/07/2007

Authors:

Kristín Anna Þórarinsdóttir, Þóra Valsdóttir, María Guðjónsdóttir, Sigurjón Arason

Supported by:

AVS, Rannís Technology Development Fund

Contact

Þóra Valsdóttir

Project Manager

thora.valsdottir@matis.is

Process control for fishing, processing and processing of salted fish. Effects of different salting methods on the effect of flat fish

Flat cod was processed according to different salting processes in order to assess the effect of pre-salting (injection, pickling and brine salting) and the composition of the injection brine (salt, phosphate, fish protein) on the action properties. Pre-salting improved efficiency and overall utilization at all stages, depending on efficacy, dehydration and drying. Brine was better than brine salting but had the most effect of spraying (followed by brine). All groups were post-salted after pre-salting. Products with added proteins came out best in the quality assessment, ie. higher percentage went in SPIG I than in other groups. Effects on microbial growth and degradation (TVN, TMA, TBA) were not significant. Efficacy characteristics assessed by sensory evaluation were similarly similar for all groups, regardless of the salting method.

Different pre-salting methods (injection, brine salting, pickle salting) were used as the initial step in heavy salting of cod. The effects of brine composition (salt, phosphate, fish proteins) were evaluated. Pre-salting increased yield and quality, brine salting was more effective than pickle salting, but the best results were obtained by injection (followed by brine salting. Dry salted was used as the main salting step for all groups. Higher ratio of products with added proteins were graded as the best class (SPIG I). Effects on microbial growth or formation of degradation compounds (TVN, TMA, TBA) were not significant.Sensory analysis showed that curing characteristics (taste, odor, appearance, texture) were not affected by the salting procedure.

View report
EN
IS EN