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Due to the increasing microbial tolerance to commonly used food preservatives, as well as growing consumer awareness of their adverse impact on human health, alternative methods of pathogens reduction in food are widely investigated. The aim of this research was to examine the antimicrobial activity of red raspberry pomace and seed preparations against enterohemorrhagic Escherichia coli (EHEC), Salmonella...
Among many methods for food decontamination, high hopes are associated with nonthermal, low-pressure plasma technology. This study aimed to estimate the survival rate of Escherichia coli, Salmonella Senftenberg W775 and Enterococcus faecalis exposed to the action of plasma for the time from 0 to 800 s. As carriers there were used the laurel leaves. An analogous experiment was performed with the use...
The agricultural use of sewage sludge is possible on condition of maintaining microbiological and parasitological standards, and one of the most modern methods improving its sanitary state is solar drying. In the presented study, the effect of this process on the elimination of indicator microorganisms (Escherichia coli, Salmonella Senftenberg W775, Enterococcus spp.) and eggs of Ascaris suum introduced...
Sewage sludge constitutes a source of valuable biogenic raw materials, but it is a carrier of many pathogenic microorganisms and viruses. Subjected to an effective sanitization by means of the process of composting, it is suitable to use in agriculture as fertilizers. The aim of this study was to observe the survival rate of Suid Herpesvirus under the influence of the temperature alone (water bath)...
The effect of composting and anaerobic fermentations under meso- and thermophylic conditions (37° and 55℃) on the survival of bovine parvovirus (BPV) and Aujeszky’s disease viruse (ADV) in meat wastes has been examined in this study. Viruses were adsorbed on filters and introduced into carriers which were made of meat fragments of different sizes and bones or in the form of suspension they were introduced...
The aim of this study was to examine the rate of Ascaris suum egg inactivation in meat wastes subjected to different sanitisation technologies. The wastes were composted in a drum bioreactor and fermented under mesophilic (37°C) and thermophilic (55°C) conditions. A suspension with fertilised eggs of A. suum was introduced into perlon sacks and placed in waste biomass. They were removed at fixed-time...
Animal by-products of category 3 after proper processing may be a valuable fertilizer for agricultural purposes. However, they can contain numerous bacterial and viral pathogens and, in cases of improper handling, may pose a health risk for people and animals. This study is aimed at monitoring the number of fecal streptococci introduced into carriers of different types imitating fragments of meat...
Escherichia coli suspension was introduced into meat and bone carriers of different sizes and a number of the bacteria was analysed at suitable time intervals. The cycles analysed were characterised by a slightly different distribution of temperature, but it was sufficient to inactivate the rods in all types of the carriers. The quickest elimination rate of E. coli (0.1-0.14 log/h) was noted in the...
Groch siewny uprawiany w monokulturze cechował wyższy stopień porażenia korzeni w porównaniu ze zmianowaniem, głównie za sprawą grzybów Fusarium oxysporum i F. solani. W okresie kwitnienia porażenie roślin występowało silniej niż w okresie wschodów. Najbardziej wrażliwe na działanie herbicydu Topogard okazały się grzyby: F. oxysporum, Trichoderma viride, Phoma glomerata i Cephalosporium asperum –...
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