Tag: Nutrients

Reports

Fibrous and healthy skin? Pesticides, heavy metals and nutrients in the exterior and interior of Icelandic and imported vegetables and fruits.

Published:

09/03/2023

Authors:

Eydís Ylfa Erlendsdóttir, Ásta Heiðrún E. Pétursdóttir, Natasa Desnica, Branka Borojevic

Supported by:

Icelandic Food Innovation Fund (is. Matvælasjóður)

Contact

Ásta Heiðrún E. Pétursdóttir

Project Manager

asta.h.petursdottir@matis.is

In general, pesticides are used in order to promote more effective production of fruit and vegetables, but can be very harmful to people's health and the environment.

The goal of the project was to screen products on the Icelandic market for pesticide residues, compare the measured amounts in imported and Icelandic products, and to investigate whether there was a difference in the concentration of pesticide residues, heavy metals and nutrients in the exterior/skin of fruits and vegetables in comparison to their interior/flesh . 

166 samples (fruits, berries, vegetables, salad, herbs and cereals) of Icelandic (42%) and imported products (58%) were screened for pesticide residues. In the sequel, the concentration of pesticides, nutrients and heavy metals in the skin and inside of products (n=44) was measured.

The results were that 49% of products on the Icelandic market contained pesticide residues, 61% of imported products and 31% of Icelandic products. However, their concentrations in samples were generally low and within the maximum permissible values in 94% samples. Fewer types of pesticides were found in Icelandic vegetables than in imported vegetables. There was a higher concentration of pesticide residues and heavy metals in the skins of fruits and vegetables compared to the contents. Then the skin of vegetables turned out to be more fibrous than the contents. In addition, Icelandic vegetables were richer in minerals and trace elements than imported vegetables.

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Reports

Utilization and composition of lumpfish

Published:

01/02/2012

Authors:

Ólafur Reykdal, Þuríður Ragnarsdóttir, Gunnar Þórðarson

Supported by:

AVS Fisheries Research Fund

Contact

Ólafur Reykdal

Project Manager

olafur.reykdal@matis.is

Utilization and composition of lumpfish

The results published in this report are part of the project Improved utilization of roe products. In the 2011 season, samples were taken from grayling caught in Húnaflói, Skagafjörður and Skjálfandi. Samples of gutted grayling were also obtained from two companies. The grayling was cut into five parts and individual parts were weighed. The average fillet utilization was 14% of total weight, eggs were 30%, liver 3%, spine 6%, beat 6% and whale along with head and tail 40%. Greenland halibut fillets were high in fat (8-18 g / 100g) but low in protein (8-9 g / 100g). The wave, on the other hand, was low in fat. Roe were particularly selenium-rich, but the heavy metals mercury, cadmium and lead were not measurable.  

Results in this report are part of the project Increasing utilization of lumpfish. Sampling was carried out in March to June 2011 in Húnaflói, Skagafjörður and Skjálfandi. Samples were also obtained from two companies. The lumpfish were cut into five parts and the parts were weighed. Fillets were 14% of lumpfish weight, roe were 30%, liver 3%, spine 6%, viscera 6% and skin together with head and tail 40%. Fillets were rich in fat (8‐18 g / 100g) but low in proteins (8‐9 g / 100g). The skin was however low in fat. Roe were very rich in selenium but the heavy metals mercury, cadmium and lead were below the quantification limits.

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Reports

Nordic information and communication network regarding safety of seafood products. Final Report

Published:

01/03/2007

Authors:

Helga Gunnlaugsdóttir, Björn Auðunsson

Supported by:

NSK (Strategy Reserve), NEF (Nordic Officials' Committee for Fisheries Policy), IFL

Nordic information and communication network regarding safety of seafood products. Final Report

This report is the final report in the Nordic information and communication network project regarding the safety of seafood products, which began in 2005 and was formally completed at the end of 2006. The project developed a joint Nordic website (www.seafoodnet.info) which gathers in one place relevant links containing information on the chemical content of marine products, both undesirable substances and also nutrients. Iceland (first the Fisheries Research Institute and then Matís ohf) was responsible for developing the website and maintaining it, but each country is responsible for its information and for updating it. The project was formally completed at the end of 2006, when the website had just been moved to a new content management system, Eplica, which simplifies all web management and also makes it easier for visitors to find the content they are looking for. It is hoped that these will enable the web to stay "alive" with little effort and cost.

This report is the final report in a Nordic project called “Nordic information and communication network regarding safety of seafood products and utilization of the resources from the sea”. The report contains a summary of the activities in the projects after the 2nd workshop in the project, which was held in Copenhagen, Denmark on April 21st 2006 until the project formally ended at the end of 2006. During this period the website was transferred into a new web content management system called Eplica product suite, which makes administering much easier than in the earlier version and accessing the website much more user-friendly. This was done in accordance with agreements reached at the workshop in Copenhagen. Although the project has formally ended, it is hoped that the seafoodnet.info website will continue to live for some time to come, as a common database or co-ordination of information and reporting of chemical substances, ie nutrients and undesirable substances in seafood. Furthermore, it was hoped that the project would be a cornerstone for further networking and innovative transnational research with the participation of scientists in the Nordic countries and EU.

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