The effect of experimental fusarium mycotoxicosis on microbiota diversity in porcine ascending colon contents.

The objective of the study was to determine the effect of exposure of pigs to the Fusarium mycotoxins zearalenone (ZEN) and deoxynivalenol (DON), administered together and separately, on the colon microbiota. An experiment was conducted for 42 days on gilts, randomly assigned to four groups and administered either ZEN, DON, ZEN+DON, or a placebo. The number of aerobic mesophilic bacteria, yeasts, molds, anaerobic Clostridium perfringens, fecal streptococci, Enterobacteriaceae, Escherichia coli, and lactic acid bacteria (LAB) were determined in the contents of the ascending colon.

Biodeterioration of optical glass induced by lubricants used in optical instruments technology.

The process of biodeterioration of optical glass was studied after being induced by an auxiliary material (lubricant 4CKP) used in the production of optical instruments. It was determined that the lubricant can initiate growth of conidia of Aspergillus niger fungus. Acid spawn metabolites cause deterioration of the glass surface.

Resistance of bacterial biofilms formed on stainless steel surface to disinfecting agent.

The natural ability of microorganisms for adhesion and biofilm formation on various surfaces is one of the factors causing the inefficiency of a disinfection agent, despite its proven activity in vitro. The aim of the study was to determine the effectiveness of disinfecting substances on bacterial biofilms formed on stainless steel surface. A universally applied disinfecting agent was used in the tests.

Exopolysaccharide production by Bacillus strains colonizing packaging foils.

The influence of the chemical composition of medium, availability of glucose and pH on the production of exopolysaccharides (EPS) by different Bacillus strains were investigated. Bacillus strains were isolated from the surface of polyethylene foils modified with mineral compounds after their biodegradation in compost soil. Moreover, the effect ofEPS production on bacterial adhesion onto the surface of the materials was examined.

Microbial and endotoxin contamination of water-soluble metalworking fluids.

Unlabelled: The present study is a part of a larger project on assessment of exposure to biological agents and respiratory health effects among metal workers.

Objectives: The aim of this study was to evaluate the level of microbial contamination of metalworking coolants as a potential source of harmful biological agents in three different metal industry plants in Poland.

Material And Methods: Ten samples of coolants with a different state of wear, including four fresh fluids, were analyzed.

The elimination of ochratoxin A by lactic acid bacteria strains.

The aim of this study was to examine 29 strains of lactic acid bacteria of the Lactobacillus and Lactococcus genera, assessing their sensitivity to ochratoxin A and their ability to remove it from a liquid medium. It was demonstrated that most strains are insensitive to the presence of OTA at the quantity of 5 microg/disc. It was demonstrated that all strains caused a reduction of the toxin amount in the liquid medium.

Influence of N,N-bis(3-aminopropyl)dodecylamine on the mycelium growth and the cell wall composition of resistance and sensitive strains belonging to the genus Aspergillus.

Resistance causes of moulds to N,N-bis(3-aminopropyl)dodecylamine (APDA) for selected species of Aspergillus niger and Aspergillus flavus was examined. Control (sensitive) strains and resistant strains, cultured at 0.05% triamine, were used in the experiments.

Mycological analysis of cereal samples and screening of Fusarium strains' ability to form deoxynivalenole (DON) and zearalenone (ZEA) mycotoxins--a pilot study.

Filamentous fungi are cosmopolitan microorganisms found in almost all environments. It should be pointed out that occurance of moulds on food or feed may cause health disorders in humans and animals. Mycoflora appears as a source of toxic methabolites, mycotoxins, which hepatotoxic, genotoxic, nefrotoxic and carcinogenic abilities were already proven in several studies.

Exposure to moulds in flats and the prevalence of allergic diseases--preliminary study.

The presented study concerned mycological analysis of buildings in Lódź and evaluation of the role between filamentous fungi contaminated flats and inhabitants health (allergic airway diseases). 49 inhabitants of 20 flats with signs of moulds contamination were examined. Air samples were collected in houses and outdoors.

[Moulds--occupational and environmental hazards].

This paper reviews the most common health effects of exposure to moulds. Allergens of mould may induce rhinitis or bronchial asthma, whereas occupational exposure frequently leads to hypersensitivity pneumonitis. Moulds also reveal cancerogenic and neurotoxic properties.