A5012495705- Mycotoxins in Agriculture and Food
- Aquaculture disease management and microbiota
- Plant Pathogens and Fungal Diseases
- Indoor Air Quality and Microbial Exposure
- Parasite Biology and Host Interactions
- Fermentation and Sensory Analysis
- Aquaculture Nutrition and Growth
- Meat and Animal Product Quality
- Antifungal resistance and susceptibility
- Probiotics and Fermented Foods
- Listeria monocytogenes in Food Safety
- Odor and Emission Control Technologies
- Myxozoan Parasites in Aquatic Species
- Fish Ecology and Management Studies
- Mollusks and Parasites Studies
- Yeasts and Rust Fungi Studies
- Gut microbiota and health
- Fish Biology and Ecology Studies
- Silicon Effects in Agriculture
- Microbial Community Ecology and Physiology
- Microbial Inactivation Methods
- Plant and fungal interactions
- Fungal Biology and Applications
- Bacterial biofilms and quorum sensing
- Identification and Quantification in Food
Norwegian Veterinary Institute
2012-2021
Swedish Veterinary Agency
2001-2011
ABSTRACT In order to determine the occurrence, distribution, and significance of mold species in groundwater- surface water-derived drinking water Norway, molds isolated from 273 samples were identified. Samples raw water, treated private homes hospital installations analyzed by incubation 100-ml membrane-filtered on dichloran-18% glycerol agar. The total count (number CFU per 100 ml) fungal diversity within each sample determined. identification was based morphological molecular methods....
Mould growth on cheese represents both a quality and food safety problem, poses significant economic losses. Several mould genera may destroy cheese; however, normally just few fungal species dominate specific type of cheese. Penicillium is the major genus followed by Aspergillus. Cheese-contaminating produce mycotoxins, some toxins such as ochratoxin A, cyclopiazonic acid sterigmatocystin have been shown to be stable under normal processing conditions. The main contamination source...
Pu-erh is a tea produced in Yunnan, China by microbial fermentation of fresh Camellia sinensis leaves two processes, the traditional raw and faster, ripened fermentation. We characterized fungal bacterial communities both Pu-erhs high-throughput, rDNA-amplicon sequencing we profile bioactive extrolite mycotoxins teas quantitative liquid chromatography-tandem mass spectrometry. identified 390 629 OTUs from Pu-erhs. Major findings are: 1) diversity drops rises due to or fermentation, 2)...
Journal Article Characterization of food spoilage fungi by FTIR spectroscopy Get access V. Shapaval, Shapaval Nofima AS Ås NorwayCentre for Integrative Genetics (CIGENE), Department Mathematical Sciences and Technology Norwegian University Life Norway Correspondence Volha AS, Centre Biospectroscopy Data modeling, Osloveien 1, N‐1430 Ås, Norway. E‐mail: volha.shapaval@nofima.no Search other works this author on: Oxford Academic Google Scholar J. Schmitt, Schmitt Synthon GmbH Heidelberg...
In order to determine the occurrence of filamentous fungi in public drinking water systems Norway, from 14 supply networks all over country was sampled and analysed. Networks with both ground surface sources were included this study.During a one-year period, 273 samples collected. Frequencies raw water, treated home hospital installations determined on basis incubation 100 ml membrane-filtered dichloran 18% glycerol agar media. Filamentous recovered 62% samples. 42.3% positive for mould...
Abstract Seventeen strains of Saprolegnia spp. were examined for morphological and physiological characteristics, seven their pathogenicity to Atlantic salmon, Salmo salar L. Two the tested caused 89 31% cumulative mortality in challenged salmonids significantly more pathogenic than other tested. The positive control ( parasitica ATCC 90213) 18% mortality, but this was not higher non‐pathogenic (0–3% mortality). All two had secondary cysts with long, hooked hairs, a characteristic which is...
Abstract Live and dead Atlantic salmon eyed eggs were challenged with eight different Saprolegnia isolates, selected because of their varied origins, known morphological characteristics growth/germination pattern. Some isolates also tested for pathogenicity to parr. Challenge was performed by exposure spores in suspension or co‐incubation live infected eggs. The phenotypic the evaluated relation observed from challenge experiment, identify possible virulence factors leading egg‐infection ....
Emerging fungal and oomycete pathogens are increasingly threatening animals plants globally. Amongst oomycetes, Saprolegnia species adversely affect wild cultivated populations of amphibians fish, leading to substantial reductions in biodiversity food productivity. With the ban several chemical control measures, new sustainable methods needed mitigate infections aquaculture. Here, PhyloChip-based community analyses showed that Pseudomonadales, particularly Pseudomonas species, represent one...
ABSTRACT Saprolegnia parasitica is a freshwater oomycete that capable of infecting several species fin fish. Saprolegniosis, the disease caused by this microbe, has substantial impact on Atlantic salmon aquaculture. No sustainable treatment against saprolegniosis available, and little known regarding host response. In study, we examined immune response to S. infection its cell wall carbohydrates. triggers strong inflammatory in (i.e., induction interleukin-1β 1 [IL-1β ], IL-6, tumor necrosis...
The type strain of Yarrowia lipolytica and 38 strains identified as lipolytica, four Candida deformans, including the two subcultures type, galli six unidentified that resembled Y. were examined by PCR fingerprints using primers M13 (GAC)5. same strains, together with recently introduced yakushimensis nom. inval., sequenced for D1/D2 domain 26S rRNA gene parts ITS also studied their physiological properties. Of previously CBS 2076 had fingerprint C. deformans 4855 was distinct from all other...
A new beta-hemolytic streptococcal species, Streptococcus phocae, was isolated from organ specimens obtained seals. This taxon is described on the basis of results a study 22 strains. S. phocae serologically somewhat heterogeneous (group antigen -/F/C). Strains belonging to this species exhibited high levels DNA-DNA homology each other, as determined by hybridization, but low type strains other species. simple scheme for differentiation streptococci presented. Strain 8399 H1 (= NCTC 12719)...
Saprolegnia infections cause severe economic losses among freshwater fish and their eggs. The banning of malachite green increased the demand for finding effective alternative treatments to control disease. In present study, we investigated ability boric acid saprolegniosis in salmon eggs yolk sac fry. Under vitro conditions, was able decrease spore activity mycelial growth all tested concentrations above 0.2 g/L, while complete inhibition germination observed at a concentration 0.8 g/L....
Fungi in the genus Penicillium, particularly P. crustosum, produce tremorgenic mycotoxins, as well suspected compounds. The accidental intoxication of six dogs with such toxins are reported. clinical signs included vomiting, convulsions, tremors, ataxia, and tachycardia, all which indicators intoxications affecting nervous system. This symptomatology caused us to think that dog poisoning was result mycotoxins. One euthanized acute phase, while three others recovered completely within a few...