News

Even fresher fish!

Improved thermal insulation packaging for fresh fish products. Experience has taught exporters of fresh fish products that there is every reason to seek all means to protect the product from the heat stress it experiences in air transport on its way to market. 

Research has shown that good pre-cooling for packaging and well-insulated packaging can be crucial for temperature control and thus maximizing product quality. Matís, the University of Iceland and Promens Tempra, have joined forces to conduct research in this field within the Chill on and Hermun cooling processes projects, which are funded by the AVS Research Fund, the Technology Development Fund and the University of Iceland Research Fund. 

It is inevitable that the product will be exposed to some heat load in air transport. Experiments and computerized heat transfer (CFD) models have been used to estimate the rise in product temperature. Figure 1 shows how much product temperature increase is expected in a single 5 kg foam plastic box (without ice mat), which is exposed to a temperature of 5 - 20 ° C. From the picture you can see, for example, that the box stands for 10 hours. at a temperature of 15 ° C the product temperature rises from 1 ° C to 6.6 ° C. The importance of pre-cooling before packing can be clearly seen in the fact that if the same 5 kg had been pre-cooled down to -1 ° C before packing in this same foam plastic box, it can be estimated that it takes the temperature of the fillets exactly approx. 10 hrs. to rise to 0 ° C.

Hermun_kaeliferla-1
Figure 1.  Average temperature of 5 kg whitefish fillets in a 5 kg conventional foam plastic box,
let stand alone at 5 - 20 ° C. The initial temperature is 1 ° C and
the heat transfer coefficient 5 W / m is assumed2/ K outside the box, i.e.
not to play wind around the box. 

Both experiments and heat transfer models have confirmed that the heat distribution in such boxes can be very heterogeneous, as shown in Figure 2. A more homogeneous heat distribution is preferable, as this way the buyer can be even more confident about the more even quality of the product. Improvements are being made to the Promens Tempra foam plastic boxes, based on the results of the research project.

Hermun_kaeliferla-2
Figure 2. Heat distribution (° C) in vertical longitudinal section of a foam box,
which has been isolated at 19.4 ° C for 1 hour. with an initial product temperature of 1 ° C. 

For further information, please contact Björn Margeirsson, bjorn.margeirsson@matis.is.

Reports

Development of a process for enzyme treatment of liver before canning

Published:

01/09/2009

Authors:

Ásbjörn Jónsson, Irek Klonowski, Sigurjón Arason, Sveinn Margeirsson

Supported by:

AVS Fisheries Research Fund

Contact

Sigurjón Arason

Chief Engineer

sigurjon.arason@matis.is

Development of a process for enzyme treatment of liver before canning

The aim of the project was to increase the value and utilization of liver for canning, by developing a process and processing pathway for enzyme purification in the membrane of the liver to release roundworms located on the surface of the liver. Furthermore, the aim was to develop a method and equipment for brine salting for canning. The results and benefits of the project consisted of the development of a technology with enzymes that is effective in releasing membrane and ringworm on the surface of the liver for canning. Processing speeds increased and utilization increased from 60% to 80-85%. The investment is considered profitable and the return on total investment (ROTA) returns within a few years.

The aim of this project was to increase the profitability in the production of canned liver, by developing a process to remove the ringworms from the membrane at the surface of the liver with enzymes, before canning. Furthermore, to develop a process for brining of liver before canning. The yield and the profit of the project consisted of a development of a technique with enzyme which successfully remove membrane and ringworms from the surface of the liver before canning. The efficiency of production increased along with the yield from 60% to 80‐85%. The investment is profitable and the return on total asset will be in a few years.

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Reports

Fatty saithe products / Fat ‐ skinning of pollock

Published:

01/09/2009

Authors:

Ragnheiður Sveinþórsdóttir, Hörður G. Kristinsson, Jónína Jóhannsdóttir, Arnljótur Bjarki Bergsson

Supported by:

AVS

Fatty saithe products / Fat ‐ skinning of pollock

The aim of this project was to investigate whether value-adding of saithe fillets could be increased in value. With fat removal, it could be possible to divide saithe fillets into white and valuable neck pieces and by-products that are tail pieces, red and brown cuts.

The project included:

Examined the quality difference between ordinary and fatty saithe fillets with sensory evaluation.

• Chemically analyzed the brown layer that is on the skin of saithe but it was peeled off in the project.  

• Explored ways to utilize by-products.

Examined utilization in traditional filleting and fat skinning.

The objective of this project is to explore if it´s possible to increase the value of pollock when fat ‐ skinning it. When fat ‐ skinning pollock it is possible to split a pollock fillet into white fillet and by ‐ products like tail, skin and brown layer.

In this project was:

• Quality explored for normal pollock fillets and fat ‐ skinned pollock fillets.

• The brown layer we fat ‐ skinned from the fillet was analyzed.

• We explored how to yield the byproducts.

• Difference of normal filleting and fat ‐ skinning explored.  

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Reports

Undesirable substances in seafood products. Results from the monitoring activities in 2007

Published:

01/09/2009

Authors:

Hrönn Ólína Jörundsdóttir, Sasan Rabieh, Helga Gunnlaugsdóttir

Supported by:

Ministry of fisheries and agriculture

Undesirable substances in seafood products. Results from the monitoring activities in 2007

In 2003, at the initiative of the Ministry of Fisheries, monitoring of undesirable substances in marine products began, both products intended for human consumption and products for the fish oil and flour industry. The purpose of the monitoring is to assess the condition of Icelandic marine products with regard to the amount of contaminants. The data collected in the monitoring project will also be used in risk assessment and to build up a database on contaminants in the Icelandic ecosystem. Coverage of contaminants in marine products, both in the mainstream media and in scientific journals, has many times demanded the response of the Icelandic government. It is necessary to have scientific results available that demonstrate the actual condition of Icelandic seafood in order to prevent damage that may result from such coverage. Furthermore, the limits of contaminants are under constant review and it is important for Icelanders to participate in such a review and support their case with scientific data. This shows the importance of regular monitoring and that Iceland conducts independent research on such an important issue as marine product pollution. This report is a summary of the results of the monitoring in 2007. Assessment of the state of Icelandic marine products with regard to contaminants is a long-term project and will only be carried out through continuous monitoring. Every year, therefore, the missing data is carefully reviewed and thus the aim is to fill in the gaps. In 2007, the following were measured: dioxins, dioxin-like PCBs and PCBs, PBDEs, PAHs, as well as ten different types of pesticides, as well as heavy metals and other trace elements, in marine products intended for human consumption as well as products for the fish oil and flour industries.

This project was started in 2003 at the request of the Icelandic Ministry of Fisheries and Agriculture. Until then, monitoring of undesirable substances in the edible portion of marine catches had been rather limited in Iceland. The purpose of the project is to gather information and evaluate the status of Icelandic seafood products in terms of undesirable substances. The information will also be utilized in a risk assessment and gathering reference data. This report summarizes the results obtained in 2007 for the monitoring of various undesirable substances in the edible part of marine catches, fish meal and fish oil for feed. The monitoring began in 2003 and has now been carried out for five consecutive years. The evaluation of the status of the Icelandic seafood products in terms of undesirable substances is a long-term project which can only be reached through continuous monitoring. For this reason, we carefully select which undesirable substances are measured in the various seafood samples each year with the aim to fill in the gaps in the available data over couple of years. In 2007 data was collected on dioxins, dioxin-like PCBs, marker PCBs, ten different types of pesticides, PBDE, PAH, as well as trace elements and heavy metals in the edible part of fish, fish liver, fish oil and fish meal for feed.

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Reports

Development of bakery products made from Icelandic corn

Published:

01/09/2009

Authors:

Gunnþórunn Einarsdóttir, Emilía Martinsdóttir, Þóra Valsdóttir, Guðjón Þorkelsson

Supported by:

Growth agreement between the South and the Westman Islands

Contact

Þóra Valsdóttir

Project Manager

thora.valsdottir@matis.is

Development of bakery products made from Icelandic corn

The aim of the project was to develop bread, biscuits and other products exclusively from Icelandic ingredients. They started to develop oatmeal from barley. We tried to have as high a proportion of Icelandic ingredients in the recipes as possible. Eight types of biscuits were produced. Three of them were selected and put to a consumer survey in which 120 people participated. Significant differences were found between the two, both in terms of overall rating and whether consumers could consider buying the product. Consumers were divided into two groups according to their consumption of oatmeal cookies. Those who ate oatmeal twice a month or more often noticed differences in the three products and gave them a higher overall score than those who ate oatmeal less than twice a month. The product that consumers liked best was 67.2 % of Icelandic raw materials, of which 6.2% was barley flour. On the other hand, it was the sample that consumers liked the most with 67.4% of Icelandic raw materials, of which 9.1% was barley flour. There seems to be a limit to how much barley flour can be used in the biscuits. The target group for barley oatmeal is those consumers who eat oatmeal cookies regularly, as the results showed that they generally liked all types of biscuits better.

The aim of the project was to develop bread, biscuit and other products exclusively made from Icelandic raw material. Digestive biscuits made from barley were developed. The ratio of the Icelandic raw material in the recipes was kept as high as possible. Eight types of biscuits were produced. A consumer study with 120 participants was carried out and three biscuits were chosen out of the eight in the beginning. Significant differences were found between two products regarding the overall liking of the products and if the consumer could envision that he was going to buy the product. The consumers were divided into two groups regarding their own consumption of digestive biscuits. Those who consumed digestive biscuits two times or more per month could distinguish a difference between the three products and gave them higher scores on the overall liking then the consumer who consumed digestive biscuits rarer than two times per month. The product that the consumers liked the most had 67.2 % Icelandic raw material, thereof 6.2% barley. However, the product that the consumers liked the least had 67.4% Icelandic raw material, thereof 9.1% barley. It seems that there is some limit to how much barley can be used in the recipes for the biscuits. The target consumer group for digestive biscuits with barley are the consumers that eat digestive biscuits regularly as the finding of this study showed that they overall liked all the biscuits more.

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News

Icelandic carpenter: a little polluted resource!

Pollution of heavy metals and other toxins in the sea around the country is generally well below international standards, according to a new report by Matís on changes in the marine environment around the country (AMSUM 2008).

The concentration of cadmium in Icelandic mussels is higher than in mussels from the waters of Europe and America.

Since 1989, an annual monitoring project of pollutants in the marine environment of Iceland has been underway. The project is funded by the Ministry for the Environment and partly by Matís. The Environment Agency is the administrator of the project.

Various pollutants in the ocean can enter marine organisms or organisms that feed on seafood. In many cases, this pollution is man-made and there is growing concern about this development. Pollutants are transported by air and sea currents from mainland Europe and America as well as pollution from Iceland. It is therefore important to monitor the amount of pollutants in Iceland, both in the environment and in the organisms that live in the country. It is also important to be able to compare the state of the marine life around Iceland with the situation in other countries, not least because of the importance of marine products to the nation.

Matís' report (Monitoring of the marine biosphere around Iceland in 2007 - 2008) presents the results of the monitoring project for the years 2007 and 2008. The study measures the heavy metals lead, cadmium, mercury, copper and zinc, arsenic and selenium, the persistent organic pollutants HCH, HCB, PCB, Chloride, trans-nonachlor, toxaphen, DDT and PBDE. The aim of the monitoring project is to identify changes that may occur in the concentration of trace elements in the marine environment around the country during a certain period and between different ocean and coastal areas. Among other things, the research is important for the sale of Icelandic seafood in foreign markets, where it can be demonstrated with scientific data that Icelandic fish is caught in an unpolluted environment.

The report states that the concentration of heavy metals such as mercury is very low. However, the concentration of cadmium has sometimes been higher in the marine environment in Iceland than in more southerly areas. However, the amount of cadmium is low in the organisms studied, for example in the range of 0.1-1 mg / kg in mussels. The high concentration of cadmium in Iceland is believed to have natural causes as there is no evidence of human-caused cadmium pollution. Thus, for example, cadmium levels in mussels have been higher in recent years in various places that are far from residential areas and commercial activities, such as in Mjóafjörður, than in Hvalfjörður and Straumsvík. Persistent organic pollutants are low in mussels and cod in Iceland. CB-153 is the highest concentration substance in mussels while DDE is the highest concentration in cod.

For further information, please contact Hrönn Ólína Jörundsdóttir, hronn.o.jorundsdottir@matis.is.

News

Matís attends the annual meeting of the Nordic Food Research Committee (NMKL)

The annual meeting of NMKL (Nordic Food Research Committee) is currently taking place in Selfoss from 21 to 25 September.

Matís is largely in charge of organizing the annual meeting, but in addition, Franklín Georgsson, division manager at Matís, is on the committee's board. He is also Iceland's liaison with NMKL.

Further information can be found on the NMKL website, www.nmkl.org/

News

Ongoing collaboration between Matís and the Iceland Academy of the Arts

Matís and the Iceland Academy of the Arts recently signed a collaboration agreement. The good co-operation that has taken place so far will therefore be continued.

Matís is the largest research company in the country in the field of food research and food safety. Matís' policy is to strengthen the competitiveness of Icelandic products and the economy, improve public health, ensure food security and sustainable use of the environment through research, innovation and services in the field of food and biotechnology.

LHÍ is the only university in Iceland with recognition by the authorities in the field of art and the university is therefore a leader in the implementation of academic research in the development of art studies in this country. LHÍ has made it its stated goal to strengthen research in the field of art and is currently working on the preparation of research-related studies at the master's level. This refers to artistic research, which is based on the methods of the various art media in the innovation of knowledge and its dissemination.

This agreement is made by the parties to further strengthen co-operation between them.

The purpose of the contract

  • Strengthen the theoretical and practical education of university students in the fields covered by the agreement.
  • Increase research in the fields of study covered by the agreement and also be at the forefront and have a professional position in innovation in these fields of study.
  • Attract students and scholars internationally.
  • Ensure that the quality of the research of the Parties is comparable to that which takes place at the international level.
  • Contribute to the development and increase competitiveness of Icelandic food production by establishing collaborative projects between producers, employees and / or students of LHÍ and Matís.
  • Apply for grants for innovation and development projects in domestic and foreign competitive funds.
  • Utilize opportunities for joint venture of equipment for the benefit of joint projects.
  • Increase the number of undergraduate and graduate students in the fields of study of the agreement.

News

Experts from Matís assist TV viewers with meat and vegetables

Experts from Matís give good advice on meat and vegetables on the television station ÍNN. This is a cooking show where Icelandic agricultural products are paramount.

Farmers have joined forces with the country's best-known chefs in the making of cooking shows that have been named "Eldum íslenskt". In the episodes, the main emphasis will be on Icelandic ingredients from the countryside and Ramm Icelandic cooking methods. It is the master chef Bjarni G. Kristinsson, head chef at Hótel Saga, who manages the shows, but they are done in close collaboration with ÍNN, the Farmers' Association, Matís and most agricultural associations. The episodes will be a mix of education and cooking and will refer to both traditions and modern methods. Among the chefs involved are Gunnar Karl at Dilli and Hrefna Sætran at the Fish Market as well as experienced people from the Hotel and Restaurant School. In addition, experts from Matís come to the show and inform TV viewers about meat and vegetables, for example how to debone meat. vegetables. The aim is to discuss traditional Icelandic home cooking and demonstrate the unequivocal quality of Icelandic agricultural production.

The episodes will be shown weekly this summer and autumn on the television station ÍNN as well as mbl.is, in addition to appearing on the websites of the agricultural associations as time goes on. The sponsors of the shows are the Chicken Farmers' Association, the Horticultural Farmers' Association, the Horse Farmers' Association, the National Association of Sheep Farmers, the National Association of Cow Farmers, the Icelandic Pig Breeding Association, the Tourism Farmers' Association, Beint frá býli, Hótel Saga and the Farmers' Association.

Óli Þór Hilmarsson and Valur Norðri Gunnlaugsson are Matís' experts in the shows.

Reports

Product development of healthier processed meat products

Published:

01/08/2009

Authors:

Aðalheiður Ólafsdóttir, Ólafur Reykdal, Óli Þór Hilmarsson, Gunnþórunn Einarsdóttir, Kolbrún Sveinsdóttir, Þóra Valsdóttir, Emilia Martinsdóttir, Guðjón Þorkelsson

Supported by:

Technology Development Fund, Agricultural Productivity Fund

Contact

Aðalheiður Ólafsdóttir

Sensory evaluation manager

adalheiduro@matis.is

Product development of healthier processed meat products

The goal of the "Healthy Meat Products" project was to develop healthier ready-made meat products with less salt and hard fats. In the product development process, sensory evaluation was used to assess the sensory quality of the products and consumer surveys to check how consumers liked the product. Consumer surveys were conducted both at home and at work. The results of sensory evaluation and consumer surveys were used to decide on changes in the production process to adapt the products to consumer tastes. Microbial and chemical measurements were performed to monitor the shelf life and chemical content of the products. Consumption habits of processed meat products and attitudes towards low-fat and low-salt meat products were studied. The project succeeded in producing fat- and salt-reduced products from three product categories: new meat products, pre-fried meat products and cold cuts. One of those products is now ready for the market. The new product received very good reviews from consumers and even better than the product that was on the market. The other two products have come a long way in product development and the company now has the knowledge and experience to complete that product development and continue with the development of such products. Consumers are generally positive about fat reduction in meat products. However, there is a difference in their answers depending on which product is involved and there is also a difference between the sexes. The vast majority consider low-fat meat products to be healthier than products with a traditional fat content. For consumers, the most important thing is that the product is tasty. Price is also important, but less so. Consumers often make the same quality demands on low-fat and traditional products. Consumers care about the hygiene of meat products but are not willing to replace the taste quality with hygiene. There was a difference in the attitudes of men and women. Women think more about healthy food than men and are more positive about low-fat meat products. They are also more likely to buy low-fat meat products. Women rather than men check whether the product is environmentally friendly. Package information is important. About two-thirds of consumers say they look at fat content when choosing meat products. About half of consumers look at the amount of salt, so it seems that most people care less about the amount of fat. Care must be taken with the labeling and content description of salt and low-fat meat products, as this affects consumers' choices and expectations.

The aim of the project was to develop healthier processed meat products with lower salt and fat content. In the production development process, the sensory attributes of the prototypes were evaluated by a trained sensory panel. Consumer tests were conducted to study the consumer liking of the products. The consumer tests were done in different settings as central location tests and in-home tests. The results from the sensory evaluation and the consumer test were used to make decisions on the next steps in the product development. Microbiological and chemical analysis was performed to estimate the storage life and nutritional status of the products. The consumption pattern and consumer attitudes towards processed meat products with reduced fat- and salt content were studied. In the project the product development of three products in different product categories was successful. One of the products is ready for marketing and consumer tests indicated better liking of this new prototype than of the traditional one. The two other products need further development and the company now has the competence and experience to finalize the development. Consumers are generally in favor of fat-reduced meat products but there is a gender difference and a difference towards different product categories. Most of the consumers believe that fat-reducing meat products are healthier than traditional products. The taste is most important to most consumers and the price is also important. The consumers make the same demands to quality of fat-reduced food as other food. Consumers find the healthiness of food important, but not as important as the taste. Women are more aware of the healthiness of food and they are more positive towards fat-reduce meat products. They are more likely to buy fat reduced food and more aware of environmentally friendly food. The information on the packaging is important. Two thirds of consumers look for the fat content on the food label of the product they buy, but only half of them look at the salt content. Labeling and packaging information is very important as it affects the choice and expectations of the consumers.

Report closed until 01-10-2012

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