Reports

Isolation and processing of bioactive peptides from underutilized species of marine organisms - preparation and formation of networks

Published:

01/05/2007

Authors:

Sigurður Vilhelmsson, Guðmundur Gunnarsson, Guðjón Þorkelsson

Supported by:

AVS Fisheries Research Fund

Contact

Guðjón Þorkelsson

Strategic Scientist

gudjon.thorkelsson@matis.is

Isolation and processing of bioactive peptides from underutilized species of marine organisms - preparation and formation of networks

In this preliminary project, preparations were made for the establishment of a center in the Westman Islands that will specialize in research, processing and marketing of products made from by-products of fish processing and underutilized species. The long-term goal is to start processing bioactive substances from seafood. To bridge the gap between raw material sourcing and specialized processing of bioactive substances, the center was expected to embark on projects that increase the value of by-products. A network was formed to ensure the development of skills and knowledge regarding the processing of bioactive and pharmaceutical forms. The network brought together both foreign and domestic researchers and stakeholders. Applications for collaborative projects were sent to Nordforsk and the NORA Fund, as well as applications to the ACP Fund with companies in Iceland for slag digestion processing, value added and product development. These emphases were also successfully incorporated into proposals for the Growth Agreement of the South, which was signed in October 2006. The collaboration will continue and the aim is to establish large international research projects on bioactivity in seafood. Special attention is paid to the 7th EC Framework Program. The group is also working on reviewing the status of each individual's knowledge and skills, and subsequently aims to publish a peer-reviewed review article on bioactive peptides in seafood.

The foundation of an R&D center in Vestmannaeyjar for utilizing marine byproducts by turning them into commercially viable products was prepared. The aim of the center is to establish state of the art of the processing of bioactive compounds from marine by-products and underutilized species. A small Nordic knowledge network to build competence and skills regarding bio processing of bio- and pharmaceutically active compounds was also established. The network now consists of scientists and industry related stakeholders from Norway, Scotland, Finland and Iceland. The network partners have decided to work together on joint international grant applications for R&D projects in marine bioprocessing. The network is currently comparing resources of knowledge and subsequently the aim is to publish a peer reviewed state of the art review of marine bioactive peptides.

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Reports

Shelf life tests on cod pieces: Effect of supercooling, pickling and gas packaging on quality changes and shelf life / Storage trials on cod loins: Effect of superchilling, brining and modified atmosphere packaging (MAP) on quality changes and sensory shelf-life

Published:

01/05/2007

Authors:

Hannes Magnússon, Hélène L. Lauzon, Kolbrún Sveinsdóttir, Ása Þorkelsdóttir, Birna Guðbjörnsdóttir, Emilia Martinsdóttir, Guðrún Ólafsdóttir, María Guðjónsdóttir, Sigurður Bogason, Sigurjón Arason

Supported by:

AVS Fisheries Research Fund, Technology Development Fund (Rannís)

Contact

Kolbrún Sveinsdóttir

Project Manager

kolbrun.sveinsdottir@matis.is

Shelf life tests on cod pieces: Effect of supercooling, pickling and gas packaging on quality changes and shelf life / Storage trials on cod loins: Effect of superchilling, brining and modified atmosphere packaging (MAP) on quality changes and sensory shelf-life

The aim of these experiments was to evaluate the effect of supercooling, aerated packaging (MAP) and brine on quality changes and shelf life of cod pieces. The effects of gas packaging and different storage temperatures on the growth of several pathogens and pointing organisms were also investigated. The experiment was carried out in October 2006 at Samherji in Dalvík. After storage (0.6 and 2% salt), the fish was trimmed and the neck pieces were packed in standard 3 kg foam packs (air packs) and in air-conditioned packaging. The gas mixture was adjusted to 50% CO2, 5% O2 and 45% N2. Three pieces (350- 550g) were placed in each tray with a drying mat. After packing, the samples were placed in Matís freezer simulators set at 0 ° C, -2 ° C and -4 ° C. The samples were examined over a four-week storage period. Sensory evaluation, microbial counts and chemical measurements were used to assess quality changes and shelf life. Pickled (2% salt) fish were stored shorter than uncooked (0.6% salt). A comparison of the number of micro-organisms the day after packing showed that the pickled fish contained ten times more cold-resistant micro-organisms than the non-pickled ones. According to sensory evaluation, the shelf life of the pickled fish at -2 ° C was 12-15 days in both air- and gas-packed pieces. In the blunt fish, the effects of gas packaging and supercooling were evident. The shelf life of air-packed pieces was about 11 days at 0 ° C and 14-15 days at -2 ° C. The shelf life of gas-packed pieces, on the other hand, was about 15 days at 0 ° C and about 21 days at -2 ° C. Supercooling of fresh uncooked fish products in air-conditioned packaging can therefore significantly increase shelf life. Gas packing significantly reduced the growth rate of pathogens and microorganisms at low temperatures. Salmonella was most affected, then Escherichia coli and Listeria monocytogenes the least. Under air conditions, L. monocytogenes grew at -2 ° C, but E. coli began to multiply at 5 ° C and Salmonella at 10 ° C.

The aim of these experiments was to evaluate the effect of superchilling, modified atmosphere packaging (MAP) and brining on the quality changes and sensory shelf-life of cod loins. The effect of MAP and different storage temperatures on some pathogenic and indicator bacteria was also tested. These experiments were initiated in October 2006 at Samherji, Dalvík. After brining (0.6 and 2% salt) the fish fillets were trimmed, and loins packed on one hand in 3 kg styrofoam boxes (air) and on the other in MA. The gas mixture used was 50% CO2, 5% O2 and 45% N2. Three pieces (350-550 g) were placed in each tray with an absorbent mat. After packaging the samples were placed in 3 coolers at Matís which were adjusted to 0 ° C, -2 ° C and -4 ° C. Samples were examined over a four-week period. Sensory analysis, microbial counts and chemical measurements were used to determine the quality changes and shelf-life. Brined loins had a shorter shelf-life than unbrined (0.6% salt). Comparison on numbers of microorganisms the day after packaging revealed that the brined pieces contained ten times more microbes than the unbrined ones. According to sensory analysis the shelf-life of the brined loins at -2 ° C was 12-15 days for both air- and MA-packed fish. In the unbrined loins the effects of superchilling and MAP were obvious. The shelf-life of air-packed loins was about 11 days at 0 ° C and 14-15 days at -2 ° C. The shelf-life of MA-packed loins was about 15 days at 0 ° C but 21 days at -2 ° C. Superchilling of unbrined fish under MA can therefore increase the keeping quality considerably. MA packaging clearly decreased the growth rate of pathogenic and indicator bacteria at low storage temperatures. Most effects were seen with Salmonella, then Escherichia coli but least with Listeria monocytogenes. In fact, L. monocytogenes could grow at -2 ° C under aerobic conditions, while proliferation of E. coli was first observed at 5 ° C but 10 ° C for Salmonella.

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News

Got lobster at the opening of an office in Höfn

The Minister of Finance, Árni Mathiesen, formally opened the Matís office (Matvælarannsóknir Íslands) and the Lobster Hotel in Höfn in Hornafjörður today. At the opening, the Minister and Sjöfn Sigurgísladóttir, CEO of Matís, enjoyed fresh lobster from the Lobster Hotel.

Sjöfn Sigurgísladóttir, CEO of Matís, said at the opening that the goal of the Höfn office was to strengthen research work, create facilities and a platform for increased collaboration with the business community and promote value creation in collaboration with food companies in the area.

Employment_Matis_a_Hofn_1

Hjalti Vignisson, Mayor of Höfn, said that it was important for the area to get food research companies like Matís to strengthen development work and promote a more diverse economy.

Hofn

At the Lobster Hotel, which is a collaborative project between Matís, the East Iceland Entrepreneurship Center, Sæplast, the Marine Research Institute and Skinney Þinganes, it is possible to store live lobsters caught in the depths of Hornafjörður. The lobster is transported live to the hotel where it is stored in refrigerated conditions. It is then transported live to the market abroad. A pilot project on the export of live lobster has been going on for the past few months and the lobster has already been exported to Belgium.

Hofn2

The project has therefore been very successful, but we have managed to get up to a third higher price for live lobster from Höfn than frozen lobster.

Figure 1: Árni Mathiesen, Minister of Finance, and Sjöfn Sigurgísladóttir, CEO of Matís, taste fresh lobster from the Lobster Hotel at the opening of Matís' office in Höfn.

Figure 2: Friðrik Friðriksson, Chairman of the Board of Matís, and Árni Mathiesen, Minister of Finance.

Figure 3: Hjalti Vignisson, Mayor of Höfn, and Ari Þorsteinsson, Executive Director of the East Iceland Entrepreneurship Center.

News

Guidelines for sensory evaluation of food packaging

The Nordic Committee for Food Methodology (NMKL) has issued guidelines on sensory evaluation of food packaging. They are in Swedish and are called Guidelines for sensory assessment of food packaging and among the authors is Emilía Martinsdóttir, project manager at Matís.

The Nordic Committee for Food Methodology (NMKL) is a committee of the Nordic Council, which is made up of representatives from all the Nordic countries. Iceland's representatives in NMKL are six from four institutions or companies, three of which are from Matís. They are Franklín Georgsson, division manager, Margrét Geirsdóttir, project manager and Heiða Pálmadóttir, department manager. The committee is one of several committees that work in a forum called Nordic forum on food.

According to the Nordic Council's website, "the aim of Nordic co - operation in food is to protect consumers' health, prevent misleading labeling and encourage the consumption of healthier foods."

NMKL's role is, among other things, to coordinate methods for testing and evaluating food in the Nordic countries, as well as to prepare instruction booklets for quality control in laboratories related to food research and in the food industry.

The guidelines cover sensory evaluation of food packaging, how to train judges and how to perform sensory evaluation. In the sensory evaluation of packaging, foods must be selected for the sensory evaluation tests and the properties of the foods must be taken into account, for example whether beverages, high-fat or low-fat foods with a low water content, dairy products, etc. In this case, a shelf life test is often carried out where the food is stored in the relevant packaging for a certain period of time. The guidelines are clear and should be useful to both food packaging manufacturers and food manufacturers. The instructions are in Swedish but we are working on translating them into English.

As stated earlier, Emilía Martinsdóttir, project manager at Matís, is one of the authors of the guidelines, while another Icelandic author is Ása Þorkelsdóttir, who worked for IFL for many years. For further information, contact Emilia at 422 5032, who has been at the forefront of the use of sensory evaluation in the food industry in Iceland for many years.

News

Matís advertises for staff in the Westfjords and in Reykjavík

Matís advertises for several employees in the Westfjords and in Reykjavík. In the Westfjords, there is an advertisement for Aflakaupabanki's project manager, a specialist in specific measurements and a project manager in the field of processing technology.

There are also advertisements for two assistants in the microbiological laboratory and the chemical laboratory.

Further information about the jobs can be found here.

News

Live lobsters from Iceland draw attention to the fisheries exhibition in Brussels

Hundreds of live lobsters from Iceland, which were brought to the European Seafood Exposition in Brussels, Belgium, attracted a lot of attention from visitors to the exhibition.

The lobsters, which were caught in Hornarfjarðardjúpur, were first transported to the lobster hotel, which is run by Matís (Icelandic Food Research) and the East Iceland Entrepreneurship Center. There they were cooled before they were exported by Icelandair Cargo to Brussels. The lobsters were then transported to the booth of the company OOJEE. The lobsters are considered healthy in size but they are about 100 gr. to weight on average.

Fishing and transporting live lobsters from Hornafjörður is part of a pilot project by Matís, Frumkvöðlasetus Austurlands and Skinney Þinganes. It is funded by the AVS Research Fund.

The European Seafood Exposition exhibition in Brussels started last. Tuesday and ends today, April 26th. In fact, there are two exhibitions in the same place: the European Seafood Exposition, which shows seafood and Seafood Processing Europe with machines, equipment, services and other equipment for the fishing industry.

In the picture are fv: Guðmundur Gunnarsson, Matís, Ari Þorsteinsson, Executive Director of the East Iceland Entrepreneurship Center, and Karl Jóhannesson, OOJEE.

News

Vísindagarður in Sauðárkrókur is starting to work

Yesterday, the company Verið Vísindagarðar ehf. presented at an open meeting in Sauðárkrókur. One of the main goals of the Verse is to promote the development of the economy, strengthen research and study opportunities and increase value creation in collaboration with companies in the area.

At the introductory meeting, the Minister of Fisheries, Einar K. Guðfinnsson, said that Verið Vísindagarðar was a successful way of developing the economy in the area, especially in the food industry. He said that the ministry had made an effort to increase the number of specialist jobs at the ministry's institutions in the countryside, but that they had increased by the last 25 semesters and that a similar number was at least foreseeable. In his speech, the Minister emphasized the importance of increasing employment opportunities for university-educated people in rural areas, as well as study opportunities, and said that the establishment of Versinn Vísindagarður was part of that.

The company Verið Vísindagarðar ehf was founded earlier this year and will handle the operation of teaching and research facilities in the form of science parks in connection with Hólar University, Matís (Matvælarannsóknir Íslands), FISK Seafood and other parties. The company aims for further development in this field by creating facilities and a platform for increased collaboration between the business community, domestic and foreign universities and researchers.

Vísindagarður is currently run in a 1,500 square meter building at Háeyri 1, where Hólar University has facilities for teaching and research in aquaculture, fish biology, marine and aquatic biology. Matís also has operations there for the company Iceprotein, which produces protein from fish cuts. The Minister of Fisheries said at the introductory meeting that Matís' participation in research and development work at Verin had, among other things, the aim of creating benefits for the business community and promoting further investment and job creation. The same applies to the activities of research institutes under the Ministry of Fisheries in many parts of the country.

Science parks, such as those that have been opened in Sauðárkrókur, have been established at numerous universities abroad because experience shows that such activities are a powerful way to strengthen settlements and communities with extensive university work in close collaboration with companies, institutions and municipalities.

Due to the great interest of those who come to Verin and others, there are already plans to significantly improve the existing housing; such as research facilities and additional work facilities for teachers, students and researchers.

Gísli Svan Einarsson has been appointed managing director of Versinn, having previously worked as a shipping manager at FISK Seafood in Sauðárkrókur. Gísli provides all further information by phone: 825 4409.

News

Introductory meeting on technology and science in Skagafjörður

Wednesday 25 April between 16-18 there will be an open house in the Verin-Þróunarsetrin by the harbor in Sauðárkrókur where various innovative projects that are being worked on in the area will be presented. The occasion is the establishment of a new company called Verið Vísindagarðar ehf.

The plant was formally opened th. March 7 last year in the premises of FISK Seafood by the harbor in Sauðárkrókur. The development center is a collaborative project between Matís, the University of Akureyri, the University of Iceland, FISK Seafood and Hólar University, and the Ministries of Industry and Fisheries jointly worked together. ISK 10 million for the project at the opening of the development center.

A special company, Verið Vísindagarðar ehf, has now been established to take care of teaching and research facilities in the development center.

Advertisement from Verin

News

Breasts, bone choking, potholes, seals? - No thanks!

Most cooking enthusiasts are familiar with it New cuisine or Haute cuisine, which became popular in France in the 1980s, with an emphasis on light and healthy food, such as plenty of vegetables and light sauces, instead of the traditional, heavy French cuisine with wheat sauces and accompanying cream. Now it's time for Nordic cuisine to renew its life.

The Nordic Nordic Food, Cuisine, Food project was launched by the Nordic Council of Ministers in the autumn of 2006 and aims to promote and make the Nordic food culture more visible. The project aims to create a common understanding of Nordic ingredients and a vision for development in Nordic food culture. The project aims to strengthen the vision and create a tradition for the brand "New Nordic Foods", which is based on healthy and varied Nordic ingredients.

In some ways it can be said that "New Nordic cuisine" is based on a similar foundation as new cuisine, i.e. to develop Nordic values within Nordic food culture and traditions, cuisine, ingredients, tourism, health and hygiene, job creation, design and value creation in food production.

Establish co-operation between the Nordic countries on Nordic food and food culture activities. With the project, the Nordic Council of Ministers wants to support all kinds of activities that contribute to the positive development of Nordic food.

According to Emilia, the steering group has discussed measures to increase food exports and support domestic food production, as well as the need to define "New Nordic food" with regard to the different food traditions of the individual Nordic countries and create a positive image among the Nordic people. There is also a need to encourage innovation in Nordic food production and to promote home production in a district based on local ingredients. NNM means "new Nordic food" both as everyday food, banquet and export of food. Projects in the field of Nordic food production will be advertised in terms of cuisine and Nordic design and tourism.

The Nordic Council of Ministers has now advertised for the first grant applications or proposals for projects supported by NNM in 2007. Projects supported by NNM are for one year at a time and it is stated that NNM does not support research. The application deadline for project ideas is 11 May. Grants in the range of 100,000-500,000 DKK will be awarded, which means that a total of grants will be awarded for 8-10 projects in 2007.

The emphasis is on visibility and collaboration in the form of networks. The focus of these initial projects is on local production and distribution, cooking and cooking, and Nordic food design. Participants must be from at least three Nordic countries.

More information on the Nordic Council of Ministers' website

News

Eating farmed fish is a matter of conscience

Discussions about animal welfare and environmentally friendly food production have increased in recent years. The debate takes on various forms and is mixed in with various issues, as recent news from the UK about the pressure of whaling opponents on retail chains not to sell fish from certain Icelandic companies testifies.

This debate is actually a bit relative, as a large part of humanity can not afford to wonder whether the animals that are put to death have suffered or not before slaughter. Such questions of conscience are, therefore, first and foremost the luxury of rich nations. But these speculations are a fact nonetheless and will probably have an increasing impact on consumer behavior in important Icelandic markets in the coming years.

In aquaculture, emphasis has been placed on establishing various regulations regarding aquaculture, and one of the points of view that has been discussed is precisely animal welfare in aquaculture production. It is therefore important to examine whether different treatment of fish in relation to animal welfare actually affects the quality of the product. If that is the case, it could affect consumers.

In the autumn of 2006, an extensive study was carried out as part of the participation of the Fisheries Research Institute (now Matís, ohf) in the EU-funded SEAFOODplus project. The aim was to examine whether farmed cod, which were produced with special regard to animal welfare on the one hand, and on the other hand produced in the traditional way, had different quality characteristics. A consumer survey was also conducted to examine whether consumers had different tastes for these products and whether different information about the fire had an effect on how consumers liked the products.

In the latest issue. Rannísblaðið covered two of the members of the study, Emilía Martinsdóttir and Kolbrún Sveinsdóttir, about the study. In short, the results indicate that if consumers did not know whether the farmed fish had been farmed with special regard to the welfare of the fish or not, they would have preferred farmed cod that were farmed in the traditional way.

It turned out, however, that when consumers received information about the farming methods, they preferred the fish that was farmed for the welfare of the fish and found it natural that fish that were farmed in such conditions were more expensive than traditional farmed fish.

These results suggest that food labeling and what information is given on the packaging is important for consumers. They also suggest that people not only use traditional senses when evaluating food, but also eat "with the heart."

Recently was also a discussion of this topic on the SEAFOODplus website

Article in Rannísblaðið

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