News

A big day at Matís - The new house will be a revolution for the business

This morning Matís ohf. delivered new premises at Vínlandsleið 12. Mótás hf. built the house and furnished it according to Matís' needs.

Matís' operations in Reykjavík have been in 3 locations but will now be merged under one roof and this will be a great streamlining of operations.

"This change will be a revolution for Matís and the company's operations. We are merging operations that are currently in three locations in Reykjavík under one roof. At the same time, it will be a great change and strength for our offices around the country to now be able to have their backing under the same roof in Reykjavík, "says Sjöfn Sigurgísladóttir, CEO of Matís.

The merger in one place lays the foundation for an even stronger work for the research company Matís, and the CEO says that it can be important for innovative projects in the field of the food industry.

"I have no doubt that we are already seeing the results of our emphasis on increasing Matís' collaboration with universities and the business community. This supports innovation in fisheries and agriculture, but also innovations such as food-related tourism, for example. The business community is constantly perceiving better opportunities in research and that is precisely why I welcome the fact that we are enabled to grow with new headquarters when it is important for the national economy to promote innovation, "says Sjöfn Sigurgísladóttir, CEO of Matís.

In the next few days, the new building will be moved and operations there will be fully operational in early January 2010.

Matís thanks Mótás hf. for a very successful collaboration at this time.

Sjofn_Beggi_V12
The picture shows Sjöfn Sigurgísladóttir receiving the keys to Vínlandsleið 12 from
in the hands of Bergþór Jónsson, CEO of Mótás.

News

Service measurements

From 14 to 23 December 2009, Matís' operations in Reykjavík will move to new shared premises at Vínlandsleið 12 in Grafarholt. Due to the relocation, it will not be possible to receive samples for microbial and service measurements in Reykjavík during this period.

Customers are kindly requested to schedule sampling projects so that they do not fall within the specified transfer dates. If there is an urgent need, we can provide our customers with certain microbial and chemical measurements at our laboratory in Neskaupstaður or at other accredited laboratories that we use as subcontractors during the transfer period.

It is expected that the operation of the service measurements will return to normal as early as the beginning of January next year. As soon as we apologize for any inconvenience our business partners may have from this temporary disruption to Matís 'service measurement operations, we would like to extend a warm welcome to you for your continued business and cooperation in Matís' new and magnificent headquarters.

On behalf of Matís' service measurement staff,

Franklin Georgsson,
Head of Measurement & Communication.

News

Mackerel processing in Icelandic fishing vessels

The fishing year 2004/2005 was the first recorded mackerel catch in Icelandic jurisdiction, since then the catch has increased from year to year but in the fishing year 2008/2009 a catch was set, then 100,000 tonnes of mackerel could be caught with Norwegian-Icelandic herring in Icelandic jurisdiction.

The mackerel has mainly been caught in July and August off the coast of Iceland, but in the summer of 2009 Icelandic vessels began to catch mackerel with herring in June and caught mackerel until September. For the next fishing year, 130 thousand tonnes of mackerel have been allocated. 

In order to be able to process mackerel on board Icelandic fishing vessels, they must have certain equipment, first there must be a sorter that sorts the mackerel from the herring. Style classifiers have proven to be good in that respect, but it is also possible to classify the mackerel in that equipment. The traditional processing line used for processing and freezing herring needs to be changed so that the mackerel can be decapitated and gutted before it is frozen. The market is mainly for decapitated and gutted mackerel, as its shelf life is the most.

It is important to be able to classify the mackerel from the Norwegian-Icelandic herring when the species in question are caught together to create the most value from the catch, instead of sending a large part of the mackerel-mixed herring catch for smelting. Numerous experiments have been made with the classification of the species and they have been successful, whether in the processing of only one species or both at a time.

News

Crowds at a meeting of Matís, AVS and SF about opportunities in the Icelandic fisheries sector

An interesting meeting on opportunities in the Icelandic fisheries sector has just ended, a meeting hosted by Matís, the AVS Fund and the Association of Fish Processing Plants.

The meeting was well attended and about 160 people came to listen to the speeches of Þorsteinn Már Baldvinsson, CEO of Samherji, and Sveinn Margeirsson, division manager at Matís.

The aim of the meeting was to shed light on opportunities and possibilities for better utilization and increased value. Icelanders are at the forefront of the utilization of marine resources and have strong and powerful fisheries companies with years of experience in meeting the needs of the market. But our raw material is a limited resource and therefore it is necessary to make the best use of it and create great value from it.

Þorsteinn Már's speech can be found here and Sveinn's talk can be found here.

For further information, please contact Sveinn Margeirsson, sveinn.margeirsson@matis.is, and Steinar B. Aðalbjörnsson, steinar.b.adalbjornsson@matis.is.

Reports

Ichthyophonus hoferi herring and other fishes / Ichthyophonus hoferi in infected herring and other fishes

Published:

01/12/2009

Authors:

Sigurlaug Skírnisdóttir, Sigurbjörg Hauksdóttir, Eyjólfur Reynisson, Sigurður Helgason, Guðmundur Óskarsson, Sigríður Hjörleifsdóttir

Supported by:

AVS small project

Contact

Sigurlaug Skírnisdóttir

Project Manager

sigurlaug.skirnisdottir@matis.is

Ichthyophonus hoferi herring and other fishes / Ichthyophonus hoferi in infected herring and other fishes

The aim of the project was to set up a simple DNA analysis method to detect the parasite Ichthyophonus hoferi in infected fish and to check if there is a difference between the parasite found in herring and plaice in Iceland. The intention was also to investigate whether I. hoferi was found in cod that had eaten infected herring, both fresh and salted fish. The objectives of the project were achieved, but the method development was more extensive than expected in the application. In this project, technology was developed for the genetic analysis of the Ihoferi infection in herring and plaice in Iceland. Methods based on conventional PCR and sequencing were tested and developed, in fact time PCR but also genetic analysis with the size analysis of the 18S mark, but to the best of our knowledge, the latter two methods have not been used before to analyze the I. hoferi. The method can be used both to diagnose infection in blood-rich organs such as the heart and kidneys but also in infected flesh. The cod could not be detected in cod. In the future, the method can be used for further research into the infection to try to shed light on the extent and extent of the infection and to try to identify the origin of the infection by applying the method to the different food types of herring.

The goal of the project was to develop a genetic analysis method to diagnose if the parasite Ichthyophonus hoferi was found in herring and other fish species. Furthermore, to determine if the same parasite species was infecting herring and infecting European plaice (Pleuronectes platessa) in Icelandic waters. Another goal was to analyze if I. hoferi could be found in cod (Gadus morhua) either salted or fresh which had been caught from infected herring areas during 2009. The goal of the project was reached and four different genetic methods were tested and all were successful. Conventional PCR technique as well as sequencing was used in the project. Real-time PCR and genotyping on ABI3730 sequencing machine were also developed successfully. The most sensitive technique is the last one (genotyping on ABI3730). The last two methods have not been published to our knowledge in this purpose. We detected I. hoferi parasite both in hearts, kidneys and fresh fillets of the fish. The parasite could not be detected in cod. In future studies, these techniques may be used for research of the origin of the parasite in the herring feed and to determine the distribution of the parasite.

Report closed until 01-01-2012

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Reports

Isolation, purification and investigation of peptides from fish proteins with blood pressure decreasing properties / Isolation, purification and research on blood pressure lowering peptides from fish proteins

Published:

01/12/2009

Authors:

Margrét Geirsdóttir

Supported by:

AVS Fisheries Research Fund

Contact

Margrét Geirsdóttir

Project Manager

mg@matis.is

Isolation, purification and investigation of peptides from fish proteins with blood pressure decreasing properties / Isolation, purification and research on blood pressure lowering peptides from fish proteins

The aim of the project was to study the activity of fish peptides and to isolate, purify and define peptides that have an antihypertensive effect. The project set up facilities and knowledge acquired so far by Matis. This includes a method for measuring ACE inhibitory activity as well as peptide isolation and purification equipment. In collaboration with the University of Iceland, HPLC and Maldi-Tof equipment were used to analyze which peptides were in the active components. The results of the project show that Icelandic fish protein could be an important source of peptides with antihypertensive properties. With the knowledge and facilities that have been acquired in the project, it is possible to develop valuable fish products and health food.

The aim of this project was to study the activity of fish proteins and isolate, clarify and define peptides with antihypertensive properties. During the project time methods and equipment to be able to do this were set up at Matis facilities. This includes method to measure ACE inhibition activity as well as filtration and fractionation units to isolate different fractions of peptides. Furthermore, peptides have been identified in the most active fraction by using HPLC and Maldi-ToF equipment in collaboration with the University of Iceland. With this extensive tool box of know-how, equipment and facilities, development of valuable fish products and nutraceuticals from blood pressure-lowering peptides is possible. Thereby the value of the Icelandic natural resources in the sea can be increased.

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Reports

Optimal storage conditions for fresh farmed tilapia (Oreochromis niloticus) fillets

Published:

01/12/2009

Authors:

Emilia Martinsdóttir, Cyprian Ogombe Odoli, Hélène L. Lauzon, Kolbrún Sveinsdóttir, Hannes Magnússon, Sigurjón Arason, Ragnar Jóhannsson

Supported by:

Technology Development Fund

Contact

Kolbrún Sveinsdóttir

Project Manager

kolbrun.sveinsdottir@matis.is

Optimal storage conditions for fresh farmed tilapia (Oreochromis niloticus) fillets

The purpose of the experiments was to find the best storage conditions for fresh tilapia fillets by determining the shelf life by sensory evaluation, microbial counts and physical and chemical measurements. Nile tilapia (Oreochromis niloticus) raised in a renewable water cycle system was filleted and packed in 100% air and aerated packages 50% CO2: 50% N2 MA for storage at 1˚C and -1˚C. The development of the QIM rating scale and the sensory evaluation properties of fresh and cooked tilapia fillets and the use of the scale in shelf life testing are described. A linear relationship was found between the quality factor and the storage time (r> 0.93) for all storage groups. The results of sensory evaluation and microbial counts showed that fillets packed in air had a shelf life of 13-15 days at 1˚C and 20 days at -1˚C. At the end of shelf life in air packs, the total number of micro-organisms and the number of pseudomonads micro-logs were 7 CFU / g in meat. In fillets in aerated packages, the coating phase was longer and the total number of microorganisms was below log 4 CFU / g after 27 days of storage at both 1˚C and -1˚C. However, aerobic conditions adversely affected the color of the fillets shortly after packing, but the color of the fillets significantly affected buyers' choices. Chemical measurements such as TVB-N and TMA were not a good measure of damaged fillet fillets. The best storage conditions for tilapia fillets are air packing and storage at a constant low temperature of -1 ° C. This report is based on the main findings of Cyprian Ogombe Odoli's master's project.

The main aim was to establish optimal storage conditions for fresh tilapia fillets by determining its shelf life by sensory and microbiological evaluation, as well as monitoring its physical-chemical properties. Nile tilapia (Oreochromis niloticus) farmed in recirculation aquaculture system was filleted and packaged in 100% air and 50% CO2: 50% N2 MA prior to storage at different temperature; 1˚C and -1˚C. This report further describes the development of a Quality Index Method (QIM) scheme and a sensory vocabulary for fresh and cooked tilapia fillets accordingly and application in a shelf life study. The application of the QIM scheme for tilapia fillets showed a linear relationship between QIM scores and storage time (r> 0.93) for all samples. The results from sensory analysis of cooked samples as well as microbial growth indicated that fillets packaged in 100% air had a shelf life of 13-15 days during storage at 1˚C and 20 days during storage at -1˚C. At the end of shelf life in 100% air packaged groups, TVC and pseudomonads counts reached log 7 CFU / g in flesh. In MA packaged fillets, the lag phase and generation time of bacteria was extended and recorded total counts below the limit for consumption (<log 4 CFU / g) up to 27 days of storage at both 1˚C and -1˚C. However, MA packaging negatively affected the color characteristics of the fillets soon after packaging (as from d6) but color is an important indicator of quality and a major factor in influencing retail purchase decisions. Chemical analyzes (TVB-N and TMA) were not good indicators of spoilage of tilapia fillets in the present study. 100% air packaging at -1˚C storage temperature is the optimal storage conditions for fresh tilapia fillets. The report is based on the master thesis of Cyprian Ogombe Odoli.

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Reports

Injection and brining of tilapia fillets

Published:

01/12/2009

Authors:

Kristín Anna Þórarinsdóttir, Kolbrún Sveinsdóttir, Þóra Valsdóttir, Irek Klonowski, Aðalheiður Ólafsdóttir, Hannes Magnússon, Arnljótur Bjarki Bergsson, Ragnar Jóhannsson, Emilia Martinsdóttir

Supported by:

Tækniþróunarsjóður Rannís / Technology Development Fund, RANNIS - Icelandic Center for Research

Contact

Kolbrún Sveinsdóttir

Project Manager

kolbrun.sveinsdottir@matis.is

Injection and brining of tilapia fillets

The aim of the project was to investigate the effect of spraying and pickling on the utilization, shelf life and properties of tilapia fillets. Three product categories were produced: chilled products, frozen products (with insignificant changes in salt content) and lightly salted, frozen products. During the processing of chilled products, red fillets were injected with a weak brine (1% salt) containing a reduced cod base (2% brine protein). Lightly salted fillets were initially sprayed with 4% brine, then pickled overnight. Part of the fillet was frozen after pickling but a similar amount was injected with the protein solution after pickling. Utilization increased during spraying and pickling, there was a significant difference in weight changes in frozen fillets and lightly salted fillets due to differences in the salt content of these two product categories. The waterproofness of fillets was poorer after freezing than after storage in the refrigerator. The shelf life of products was short and possible reasons for this are discussed in the report. Microbial growth and degradation processes were largely independent of injection and brine.

The objective of the project was to study effect of injection and brining on the yield, storage life and characteristics of tilapia fillets. Three different product groups were produced: chilled. Frozen (with small salt changes) and lightly salted products. During processing of chilled products fillets with skin were injected with brine containing minced cod (2%) protein in brine. Lightly brined fillets were initially injected with 4% brine and then brined overnight. A part of the fillets was frozen after brining but similar part was injected with protein solution after brining. The yield increased with injection and brining, distinct difference was in the weight changes of frozen and lightly salted fillets because of the difference of the salt content of these two product groups. Water holding capacity of the frozen fillets was lower than for chilled fillets and the storage life was very short. Microbial growth was mostly not depending on the injection and brining.

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Reports

Fishing, sorting, processing and markets for mackerel caught by pelagic vessels. Analysis of samples and classification properties / Fishing, grading, pre ‐ processing, processing and marketing of mackerel products catches by pelagic vessels. Analyzing samples and grading trait

Published:

01/12/2009

Authors:

Ragnheiður Sveinþórsdóttir

Supported by:

AVS Fisheries Research Fund

Fishing, sorting, processing and markets for mackerel caught by pelagic vessels. Analysis of grading and classification properties / Fishing, grading, pre ‐ processing, processing and marketing of mackerel products catches by pelagic vessels. Analyzing samples and grading trait

The aim of this project is to study the fishing of pelagic fishing vessels for mackerel in Icelandic waters, make formal measurements, come up with solutions on how to sort the mackerel from other fish on board and how to process it in freezer vessels. The equipment options necessary for the processing will be analyzed, and markets for mackerel caught in Icelandic waters will also be explored according to the seasons. In this section, the collection and analysis of mackerel samples collected in the summers of 2008 and 2009 was reported. Classification properties were also discussed.

The objective of this project is to examine mackerel fishing on Icelandic fishing grounds, perform geometrician measurements, find the best solution for grading the mackerel by size and species on board and how to process it in freezer vessels. Analyze what kind of technology is necessary. Moreover, to examine the markets for mackerel caught on Icelandic fishing grounds during the summer. In this part conclusion are present after the collecting and analysis of samples during summers 2008 and 2009. Also, some conclusions are about grading properties.

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Reports

24-hour detection of undesirable microbes in food / 24-hour detection of undesirable microbes in food

Published:

01/12/2009

Authors:

Eyjólfur Reynisson, Sveinn Haukur Magnússon, Árni Rafn Rúnarsson, Viggó Þór Marteinsson

Supported by:

Tækniþróunarsjóður, AVS

Contact

Viggó Marteinsson

Research Group Leader

viggo@matis.is

24-hour detection of undesirable microbes in food / 24-hour detection of undesirable microbes in food

The aim of the project was to develop and establish methods for rapid detection of undesirable bacteria in agricultural and marine products as well as other foods. With traditional methods as used today, results are obtained after 3 and up to 7 days, but with the methods developed in this project, it is possible to get results in a few hours or within 24 hours. The method is based on real-time PCR methodology and specific amplification of the genetic material of pathogenic bacteria and other undesirable bacteria. Diagnostic methods have been developed for major pathogens (Salmonella, Campylobacter, Listeria monocytogenes, Vibrio parahaemolyticus) in milk, meat and fish products as well as for specific spoilage bacteria in food. The results of the project will improve services to the food industry in Iceland by detecting unwanted microorganisms much earlier so that it is possible to intervene in production processes and thereby increase consumer safety in agricultural and fish products.

The aim of this project was to develop and set up new methods for rapid identification of undesirable bacteria in food and feed. With today's conventional and accredited culture methods results can be expected after 3 and up to 7 days. With the new methods to be taken in use and was developed in this project, the time of diagnostic procedure will decrease to few hours or to one working day. The detection methods are based on real ‐ time PCR technology and a specific amplification of genetic material of the undesired bacteria. Diagnostic methods for the most common pathogens (Salmonella, Campylobacter, Listeria monocytogenes, Vibrio parahaemolyticus) in meat‐, milk and fish products were developed through as well as quantitative assays for the main spoilage bacteria in fish. The results of the project will be used to improve the service for the Icelandic food industry on the domestic‐ and overseas markets by having rapid diagnostic methods for bacterial contamination at hand.

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