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Helsinki, Finland

Suominen K.,Finnish Food Safety Authority | Verta M.,Finnish Environment Institute | Marttinen S.,Mtt Agrifood Research Finland
Science of the Total Environment | Year: 2014

The end products (digestate, solid fraction of the digestate, liquid fraction of the digestate) of ten biogas production lines in Finland were analyzed for ten hazardous organic compounds or compound groups: polychlorinated dibenzo- p-dioxins and furans (PCDD/Fs), polychlorinated biphenyls (PCB(7)), polyaromatic hydrocarbons (PAH(16)), bis-(2-ethylhexyl) phthalate (DEHP), perfluorinated alkyl compounds (PFCs), linear alkylbenzene sulfonates (LASs), nonylphenols and nonylphenol ethoxylates (NP. +. NPEOs), polybrominated diphenyl ethers (PBDEs), hexabromocyclododecane (HBCD) and tetrabromobisphenol A (TBBPA). Biogas plant feedstocks were divided into six groups: municipal sewage sludge, municipal biowaste, fat, food industry by-products, animal manure and others (consisting of milling by-products (husk) and raw former foodstuffs of animal origin from the retail trade). There was no clear connection between the origin of the feedstocks of a plant and the concentrations of hazardous organic compounds in the digestate. For PCDD/Fs and for DEHP, the median soil burden of the compound after a single addition of digestate was similar to the annual atmospheric deposition of the compound or compound group in Finland or other Nordic countries. For PFCs, the median soil burden was somewhat lower than the atmospheric deposition in Finland or Sweden. For NP. +. NPEOs, the soil burden was somewhat higher than the atmospheric deposition in Denmark. The median soil burden of PBDEs was 400 to 1000 times higher than the PBDE air deposition in Finland or in Sweden. With PBDEs, PFCs and HBCD, the impact of the use of end products should be a focus of further research. Highly persistent compounds, such as PBDE- and PFC-compounds may accumulate in agricultural soil after repeated use of organic fertilizers containing these compounds. For other compounds included in this study, agricultural use of biogas plant end products is unlikely to cause risk to food safety in Finland. © 2014 Elsevier B.V. Source


Suojala L.,University of Helsinki | Kaartinen L.,Finnish Food Safety Authority | Pyorala S.,University of Helsinki
Journal of Veterinary Pharmacology and Therapeutics | Year: 2013

Bovine mastitis caused by Escherichia coli can range from being a subclinical infection of the mammary gland to a severe systemic disease. Cow-dependent factors such as lactation stage and age affect the severity of coliform mastitis. Evidence for the efficacy of antimicrobial treatment for E. coli mastitis is very limited. Antimicrobial resistance is generally not a limiting factor for treatment, but it should be monitored to detect changes in resistance profiles. The only antimicrobials for which there is some scientific evidence of beneficial effects in the treatment for E. coli mastitis are fluoroquinolones and cephalosporins. Both are critically important drugs, the use of which in animals destined for food should be limited to specific indications and should be based on bacteriological diagnosis. The suggested routine protocol in dairy herds could target the primary antimicrobial treatment for mastitis, specifically infections caused by gram-positive bacteria. In E. coli mastitis with mild to moderate clinical signs, a non-antimicrobial approach (anti-inflammatory treatment, frequent milking and fluid therapy) should be the first option. In cases of severe E. coli mastitis, parenteral administration of fluoroquinolones, or third- or fourth-generation cephalosporins, is recommended due to the risk of unlimited growth of bacteria in the mammary gland and ensuing bacteremia. Evidence for the efficacy of intramammary-administered antimicrobial treatment for E. coli mastitis is so limited that it cannot be recommended. Nonsteroidal anti-inflammatory drugs have documented the efficacy in the treatment for E. coli mastitis and are recommended for supportive treatment for clinical mastitis. © 2013 John Wiley & Sons Ltd. Source


Jokelainen P.,University of Helsinki | Nylund M.,Finnish Food Safety Authority
Journal of Wildlife Diseases | Year: 2012

Toxoplasma gondii parasites belonging to endemic genotype II caused fatal infection in three (16%) of 19 Eurasian red squirrels (Sciurus vulgaris) sent for necropsy in Finland between May 2006 and April 2009. The liver, spleen, and lungs were the organs most affected in all three cases, and high numbers of T. gondii parasites were visualized immunohistochemically in all the tissue samples available from them. The genotyping of the parasite strains was based on the results of analysis of length polymorphism at six microsatellite markers (B18, TUB2, TgM-A, W35, B17, and M33). The length of the PCR product at the additional seventh marker (M48) was 233 base pairs from the first two cases that were found dead together, suggesting a common infection source, and 215 base pairs from the third. Eurasian red squirrels may be exceptionally susceptible to T. gondii infection. © Wildlife Disease Association 2012. Source


Ketola R.A.,University of Helsinki | Hakala K.S.,Finnish Food Safety Authority
Current Drug Metabolism | Year: 2010

Glucuronidation is one of the main phase II metabolic reactions in humans and animals. A variety of analytical techniques and methods have been used for the detection and quantification of glucuronides of both endogenous and xenobiotic compounds from different biological samples of humans and animals. Drug metabolism has been extensively studied with both in vitro and in vivo experiments under various conditions. The purpose of this review is to explore in detail the benefits and drawbacks of different liquid chromatography-mass spectrometric (LC/MS) methods and techniques in detection and identification of all forms of glucuronide conjugates from in vitro, biological, and environmental samples. The entire analytical procedure is covered, from sample treatment, separation, and ionization to qualitative and quantitative analyses. The aim of this review is not to cover every published paper where glucuronides are identified and/or quantified, but rather to focus on special cases where a new analytical approach or technical development has led to a better, more specific, or more comprehensive detection, identification, or quantitation of glucuronide conjugates. © 2010 Bentham Science Publishers Ltd. Source


Grant
Agency: Cordis | Branch: FP7 | Program: CP-IP | Phase: KBBE.2011.2.4-02 | Award Amount: 7.58M | Year: 2012

Total Diet Studies (TDS) allow getting information on real dietary exposure to food contaminants consumption (heavy metals, mycotoxins, POPs...) and estimating chronic exposure to pesticide residues in food and food additives intake. TDS consider total exposure from whole diets and are based on food contamination as consumed rather than contamination from raw commodities, thus ensuring a realistic exposure measure. TDS facilitate risk assessment (RA) and health monitoring (HM). Some EU Member States (MS) and Candidate Countries (CC) have no TDS programme or use various methods to collect data, which were not examined yet to tell whether they are comparable or not. This is of interest for EFSA or WHO-FAO. Similarly it is important to harmonise methods to assess dietary exposure risks in MS, CC and at the European level compared with other world regions. The methods proposed will aim for food sampling, standard analytical procedures, exposure assessment modelling, priority foods and selected chemical contaminants consistency across MS and CC. Various approaches and methods to identify sampling and analyses will be assessed and best practice defined. Contaminants and foods which contribute most to total exposure in European populations will be defined. Priority will be given to training and support in EU MS and CC currently without TDS. It will demonstrate best practice in creating a TDS programme using harmonised methods in regions previously lacking TDS, and ensure consistency of data collected. A database will be set up describing existing EU studies and collating harmonised exposure measures and designed to allow risk assessors and managers handling dietary exposure more accurately and more specifically. TDSEXPOSURE will spread excellence in TDS throughout stakeholders and establish a legacy of harmonised methods for sampling and analysis, and science-based recommendations for future global studies.

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