Reports

Undesirable substances in seafood products - results from the Icelandic marine monitoring activities in the year 2010

Published:

01/09/2011

Authors:

Vordís Baldursdóttir, Natasa Desnica, Þuríður Ragnarsdóttir, Helga Gunnlaugsdóttir

Supported by:

Ministry of Fisheries and Agriculture

Undesirable substances in seafood products - results from the Icelandic marine monitoring activities in the year 2010

In 2003, at the initiative of the Ministry of Fisheries, monitoring of undesirable substances in marine products, both for human consumption and products for the fish oil and flour industry, began. Matís has been entrusted with the supervision of the monitoring project. The purpose of the monitoring is to assess the condition of Icelandic marine products with regard to the amount of contaminants. The aim is also to collect independent scientific data on undesirable substances in marine products for the government, the fishing industry as well as buyers and consumers of Icelandic seafood. 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 for the year 2010. 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, thus aiming to fill in the gaps. In 2010, the following substances were measured in marine products intended for human consumption as well as products for the fish oil and flour industry: dioxins, dioxin-like PCBs and pointer PCBs, PBDEs, metals, as well as 12 different types of pesticides. A special effort was made to measure PBDEs and metals in 2010 and their concentration was generally low in Icelandic seafood. As before, a small amount of undesirable substances was generally measured in Icelandic seafood in 2010. Oil and flour made from blue whiting, however, have to be close to or above the permitted limits for certain substances.

This monitoring of undesirable substances in seafood products was initiated by the Icelandic Ministry of Fisheries and Agriculture in the year 2003. Until then, this type of monitoring had been limited in Iceland. Matis was assigned the responsibility of carrying out the surveillance program, which has now been ongoing for seven consecutive years. The purpose of the project is to gather information and evaluate the status of Icelandic seafood products in terms of undesirable substances. Further, the aim of the project is to provide independent scientific data on undesirable substances in Icelandic seafood for food authorities, fisheries authorities, industry, markets and consumers. The information will also be utilized for a risk assessment and gathering of reference data. This report summarizes the results obtained in the year 2010 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 seven 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. Thus the project fills in gaps of knowledge regarding the level of undesirable substances in economically important marine catches for Icelandic export. In the year 2010, data was collected on dioxins, dioxin-like PCBs, marker PCBs, 12 different types of pesticides, PBDEs and trace metals in the edible part of fish, fish oil and meal for feed. Samples collected in 2010 generally contained low concentrations of undesirable substances. These results are in agreement with our previous results obtained in the monitoring programs in the years 2003 to 2009. In the year 2010 emphasis was placed on gathering information on the organic compounds PBDEs and inorganic trace elements in the edible part of marine catches as well as in the fish meal and fish oil for feed. The results reveal that the concentrations of PBDEs compounds are in low in fish and fish products for feed. Blue whiting meal and oil can contain undesirable substances in concentration close to or exceeding the maximum level set by the EU.

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Reports

Thermal modeling of processing and transport of fresh fish / Hermun kæliferla - LOKASKÝRSLA

Published:

01/09/2011

Authors:

Björn Margeirsson, Sigurjón Arason, Kristín Valtýsdóttir

Supported by:

AVS Fisheries Research Fund, Technology Development Fund, University of Iceland Research Fund

Contact

Sigurjón Arason

Chief Engineer

sigurjon.arason@matis.is

Thermal modeling of processing and transport of fresh fish / Hermun kæliferla - LOKASKÝRSLA

The main objective of the project Simulation of cooling processes - thermodynamic simulation of production and transport processes, which began in June 2008, was to present improvements in procedures and equipment related to the transport of marine products through process analysis, experiments and computerized thermal and hydrological models. The consequences of improved temperature control in production and transport processes are increased quality, stability and safety, which at the same time increase the value of the product. Partners in the project were Matís, the University of Iceland, Promens Tempra, Eimskip Ísland, Samherji, Brim (ÚA), Festi, Völusteinn and Eskja. This report describes the main results and products of the project. Examples of products are heat transfer models of fresh fish products in a foam box, which make it possible to predict fish temperatures based on environmental temperature history. Heat transfer models were used to redesign the Promens Tempra 3, 5 and 7 kg foam boxes with the minimum target fish temperature minimization under the target heat load. Experiments confirmed the superiority of the new boxes over traditional box types, both in terms of temperature control and product quality under heat load. The results of another experiment show that the shelf life of fresh fish fillets in corner boxes of whole pallets in the air transport chain can be about 1-1.5 days shorter than fillets in boxes in the middle of the pallet stack. Heat distribution in different cooling chains was mapped and special emphasis was placed on pre-cooling fillets for packing and heat distribution in different types of cooling containers with different loading patterns. 

The main aim of the research project Hermun kæliferla - Thermal modeling of processing and transport of fresh fish, which was launched in June 2008, was to improve technology and practices used for fish processing and transport by means of analysis of chill chains, experiments and computational modeling. Improved temperature control in fish chill chains leads to increased product quality, stability and safety and thereby increased product value. This report describes the main results and products of the project. Examples include heat transfer models of fresh fish fillets packaged in boxes, which can be used to predict product temperature evolution as a function of variable ambient temperature. Numerical heat transfer models were used to optimize the design of 3, 5 and 7 ‐ kg expanded polystyrene boxes manufactured by Promens Tempra with the aim of minimizing the maximum fish temperature in boxes under thermal load. Improved thermal protection of the new box design was confirmed in different experiments, both with regard to lesser product temperature variations and extended freshness period and storage life of products. The results from another storage study suggest that the storage life of fresh fish products in a corner box can be more than 1‐1.5 days shorter than in the center boxes of a full size pallet stack in a real air transport chain, depending on the level of ambient thermal load. Environmental and product temperatures were mapped in different chill chains with special emphasis laid on precooling during processing and temperature distribution in reefer containers of different types and loading patterns. 

View report

News

Hraðfrystihúsið Gunnvör - important collaboration!

Hraðfrystihúsið Gunnvör is the largest fisheries company in the Westfjords and operates both powerful fishing and fish processing on land, in addition to having achieved considerable success in the development of cod farming. The company benefits from the collaboration with Matís and the proximity to Matís' office in Ísafjörður.

Progress visible in cod farming
"We have benefited from Matís' office in Ísafjörður in recent years in various projects, primarily in terms of processing and aquaculture-related projects," says Kristján Jóakimsson, production and marketing manager at Hraðfrystihúsið
Gunnvöra.

"If we look at the processing component, the projects we have worked on with Matís focus on, for example, the development of new processing methods, processing technology and the development of new products. In cod farming, we have also used Matís' knowledge and facilities to help us, but certainly many more have come to that project with us. Cod farming is a long-running project that is thumbs up and there is no indication other than that it will continue on the same path. We are seeing various positive steps in cod farming and therefore it is possible to talk about progress. However, many factors play a role in the success of this article, such as feeding, breeding, disease, marketing, product development and more. For many of these aspects, we can look to Matís to work with us, "says Kristján.

"The location of Matís' office here in Ísafjörður is important to us and in fact to both parties in such a collaboration. The communication channels are shorter and the results pay off better. And with the proximity of collaborative projects, new surfaces and new ideas are also more likely to emerge. We will therefore continue to use the services of Matís' office, as has been the case. With that reservation
although the uncertainty that has prevailed in the fisheries sector recently has diminished our ability to undertake new research and development projects. That is a fact, "says Kristján Jóakimsson.

For further information Arnljótur Bjarki Bergsson Head of Processing, Value Added and Fire.

News

Matís' transport agreement draws attention

Matís offers its employees a transport contract which means that they are paid to use environmentally friendly means of transport on their way to and from work.

This spring, Matís employees were given the opportunity to sign a transport contract and receive payment from the company for walking, cycling or taking buses to and from work. The company pays the same amount as the bus pass costs per month, whether the employee uses a bus or chooses another environmentally friendly mode of transport.

"The project went really well. Many more people took part in this than we expected. Matís employs about 100 people and about 45 people took part, so this is just a very good participation rate, "said Jón Haukur Arnarsson, human resources manager at Matís.

Jón says that the benefits for the company are various, although the direct financial benefits may not be obvious.
"The main benefit is happy staff and it shows in a variety of ways, for example it is a time saver for people, they have taken out their gym and do not have to go to the gym after they come home. Many studies have shown that sick days are reduced with health promotion and that is a natural benefit for the company, "said Jón Haukur.

Jón Haukur says that transport contracts will continue to be offered at Matís, but the idea originally came from the Ministry for the Environment. Information was received there that since then many other ministries and government agencies have adopted the same approach.

News from www.ruv.is.

For further information Jón Haukur Arnarsson.

News

Cod has become fashionable in the country

Sales of cod for domestic consumption are much higher so far this year than in the whole of 2008. Fréttablaðið had fun news about this and an interview with Gunnþórunn Einarsdóttir at Matís and with Svein Kjartansson at Fylgifiskar.

The news can be seen by clicking here.

For further information Gunnþórunn Einarsdóttir at Matís.

News

Quality and processing of livestock products - courses by Matís and LBHÍ

The course is about the composition, fatigue, taste quality, peculiarities and properties of raw materials for food processing and products from Icelandic animal husbandry. Taken from national and international research and development materials in recent decades as well as laws and regulations.

At the end of the course, students will have an overview of meat and milk production and the main processing methods and products in Iceland. Also what characterizes them and makes them special based on composition, taste quality and based on traditions and conditions in Iceland. Students will also be familiar with food safety and the management of important control points in production and meat and dairy products. Finally, students will know what it takes to start a small food or home production business and what it takes and how to apply for a health license. They also get an overview of product design, product development, business plan preparation, packaging selection and packaging labeling in connection with small-scale food production based on specialties, local conditions, traditions and culture.

Further information about the course can be found here and at Guðjón Þorkelsson division manager at Matís.

News

A Nordic conference on consumers and sensory evaluation will be held in Denmark on 5 and 6 October 2011

A Nordic conference on sensory evaluation, held in Iceland in May 2010, will be held in Denmark this time. The conference is primarily intended for professionals and scientists who work with sensory evaluation and consumers, in product development and marketing of consumer products.

The Nordic Workshop in Sensory Science - focus on sensory professionalism
The topic of the conference is professionalism, innovations in the field of sensory evaluation and the use of sensory evaluation in the food industry. Among other things, it will discuss how sensory properties affect the experience, how consumers' choices can be predicted, the use of different rating scales in sensory evaluation and consumer research, processing and new rapid sensory evaluation methods.

Aðalheiður Ólafsdóttir, Matís 'director of sensory evaluation, will give a talk on training people in sensory evaluation, and Emilía Martinsdóttir, Matís' professional director, will be on the conference's preparation and science committee.

More information about the conference can be found on the website www.sensorik.dk. Registration takes place until September 1 on the aforementioned website.

Leaflet about the conference is here.

News

Fagur Fisk cooking shows re-aired

Due to numerous requests, RÚV has now decided to re-air the Edda Award-winning episode Fagur Fiskur, which has enjoyed tremendous popularity recently. winter.

The shows are shown on Sunday evenings at 18:25 on RÚV. You can view the episodes and recipes at www.fagurfiskur.is.

News

New brochure about Matís Matarsmiðja in Höfn in Hornafjörður

It is called a food factory when a facility for various food processing has been prepared, which has received a permit from the competent authorities for the operation.

The facilities can vary from one workshop to another, but what they all have in common is that there is a wide range of food processing equipment and tools and other facilities that the processing requires. Users receive training on the equipment and free access to the production of the products that are possible with regard to facilities and equipment and issued licenses by the health authorities.

The food factories regularly hold courses on the production and processing of various products as well as courses on internal control. Matís food factories are in Flúðir and á Harbor in Hornafjörður.

Further information about Matarsmiðjan á Höfn can be found in a new brochure here.

Further information about Matís' establishments and Matarsmiðjur can be found here.

News

Impact of different pre-cooling methods and packaging redesign on temperature control of fresh fish products

Wednesday, August 17, 2011, at 15:30 Mon. Kristín Líf Valtýsdóttir hold a master's lecture at the Faculty of Industrial Engineering, Mechanical Engineering and Computer Science (IVT) at the University of Iceland on their project. The master's lecture will be held in Matís' presentation in room 312

 Supervisors: Sigurjón Arason, Halldór Pálsson and Björn Margeirsson

Examiner: Gunnar stefánsson

Abstract
The aim of this project was to investigate the effects of different pre-cooling methods and the redesign of packaging on the temperature control of fresh fish products. Inadequate temperature control in the cooling chain of fresh fish products from producer to buyer has a negative effect on the quality of the products and it is therefore preferable to pre-cool fish products quickly and safely down to the storage temperature before packaging. Thermal insulation of packaging limits heat transfer from the environment to the product. Heat distribution in fish was mapped for different pre-cooling methods and heat transfer models were used to redesign foam plastic packaging (EPS). The results of pre-cooling experiments were temperature profiles that serve as guidelines for successful pre-cooling. Thermal insulation of packages was improved by increasing the radius of curvature and thereby thickening the corners. Thus, the original EPS box was improved with the help of computerized heat transfer models. Experiments with fresh fish with prototypes and later the new redesigned box showed improved thermal insulation. The end result is that by pre-cooling the product down to the storage temperature and by using improved packaging, the quality and value of fish products can be significantly increased.

 Further information is provided by Kristín Líf Valtýsdóttir. kristinlif@matis.is

EN