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The purpose of this investigation was to evaluate the usefulness for freezing of new broccoli varieties. The evaluation was based on chemical composition of fresh and frozen broccoli stored for three months. The study was conducted on seven broccoli varieties, namely: SVR 97, SVR 99, SVR 1002, SVR 1017, Ironman, Beneforte and Bellaverde. The broccoli were obtained directly from the producer (Moszna,...
An analysis of meiotic and mitotic chromosomes of P. corneus inhabiting Lake Kortowskie was made in order to verify the use of different tissues and colchicine treatments, the hypotonization time and two methods of chromosome slide preparation. In total, 30 chromosomal slides of six individuals were analyzed. The well spread chromosomes were introduced onto the slides by dropping a cell suspension...
Four potato cultivars were grown: Volumia, Irga, Satina and Sylvana. Potato plants were sprayed three times with the growth biostimulator Asahi SL and growth regulators Bio-Algeen S-90 and Kelpak SL. During the growing season, the severity of late blight and early blight was evaluated. After five-month storage, the incidence of common scab, black scurf, soft rot, late blight and dry rot was determined...
Commercially available unpasteurized, freshly-squeezed beetroot juice with a 24–72 hour shelf-life in cold storage, retains its natural flavour and nutritional value but can be a source of undesirable microflora. In this paper, the suitability of high pressure carbon dioxide (at 20 and 60 MPa, and a temperature of: 20, 35 and 60°C) to inactivate the native microflora in this juice has been studied...
The aim of the study was to examine the possibility of processing red-fleshed apples into cloudy juices. In a series of experiments on laboratory and semi-technological scale, the effect of enzymatic treatment of the pulp, an addition of ascorbic acid, centrifugation of the must and storage conditions on the physicochemical quality of the finished juice were investigated. The following red-fleshed...
The present study was aimed to investigate the influence of multigenerational selection in the direction of low or high body weight on spatial learning and memory in mice. Light and heavy lines of rodents were selected from an outbred stock constructed from inbred strains; A/St, BN/a, BALB/c and C57BL/6J. Male mice selected at weaning for the low (L, n=13) or high (H, n=16) body weight for 94 generations...
The aim of this study was to determine contents of cis9trans11 C18:2 acid (CLA) and trans isomers of C18:1 and C18:2 acids in fat of yoghurts, kefirs, cheeses with bloomy molds and blue-veined cheeses. Fatty acid composition of the analyzed dairy products was assayed with the gas chromatography method using a 100-m capillary column with CP Sil 88 phase. The study demonstrated that contents of cis9trans11...
This paper presents the results of the study conducted on the Polygonum polystachyum population located in a manor park in Niepołcko (West Pomerania). This species in Poland has been recorded only in 11 localities so far, most of which are situated in the south of the country. The aim of the investigation was to identify the current status and edaphic conditions of the P. polystachyum population,...
The aim of research was to determine the effect of heat treatment of whole and milled seeds and methods of extraction on the content of phosphorus and profile of phospholipids. The experimental material consisted of 15 laboratory samples of rapeseed oil, and 1 sample of industrial hot-pressed oil. The phosphorus content, the share of phospholipids with column chromatography and the profile of phospholipids...
The aim of the study was to determine the impact of traffic flow on the content of selected trace elements, i.e. manganese, zinc, copper and iron, in the surface layers of soils along the section of State Road 51 (north-eastern Poland). The areas most exposed to contamination surrounded the road and urban zone while, with an increasing distance off the road, the content of tested elements decreased...
The aim of this study was to review recent research, conducted over the last two decades, into prediction of carcass leanness and fatness in live domestic birds. Numerous traits were measured in live birds, and relatively high correlations were found between the breast muscle content and lean meat content of the whole carcass vs. breast muscle thickness, breastbone crest length and body weight of...
The aim of this study was to assess changes in rheological characteristics and droplet size distribution in emulsions studied under the influence of the one- and two-stage homogenization processes, carried out at a pressure higher than in standard industry practice. The material consisted of food emulsions of the o/w type, with an oil phase content of 9%, 12%, and 18% of mass, in a 20% solution of...
The aim of this study was to characterize thermal sensations and distribution across the years 2006–2011 on the basis of two bioclimatic indicators. The study was based on hourly meteorological data for the period April-October collected from the station, located on the eastern outskirts of Wrocław. TE and TRE were calculated with the use of BioKlima 2.6. software, while the evaluation of thermal...
Constantly changing consumer market manifests itself with greater competitiveness of cured meat products of particular sensory qualities produced both industrially and traditionally. Improper conditions of curing may cause excessive accumulation of polycyclic aromatic hydrocarbons (PAHs), which in turn casts doubt on whether cured products are healthy for consumer. The aim of this research was to...
In this paper the effect of soil fetilization (NH₄NO₃ and CO(NH₂)₂) foliar fertilization (CO(NH₂)₂) with and without Ekolistem on selected grain quality parameters and the yield of Milewo variety spring triticale was determined. It was found based on the obtained results that the nitrogen fertilization level and the years of research affected the grain, protein yield and the concentrations of (selected)...
Cryptosporidium spp. are protozoan parasites found in the respiratory and gastrointestinal tracts of many vertebrates. This paper aims to present information about Cryptosporidium spp. related to their biology, life cycle, pathogenesis, infectivity, diagnostic methods and the treatment of diseases caused by them. C. canis and C. felis are common parasites of dogs and cats, therefore contact with ill...
The aim of the study was to determine to what extent the process of expansion affects the interaction of phenolic compounds with other dry matter components such as starch, cellulose, fiber and protein. As a research material millet grains and popping were used. The content of total phenolic compounds and contents of free and liberated from the ester and glycosidic bonds phenolic acids were determined...
Air sampling by impaction was conducted at eight sampling sites in a seasonal cycle (sites I–IV located in the center of Bydgoszcz, sites V–VIII located in the Fordon district). The results indicate the dominance of mold fungi (77%). Heterotrophic mesophilic bacteria were the second most numerous (22%) while actinomycetes accounted for a small percentage of the total number of microorganisms (1%)...
Three times every 10-14 days, starting from the BBCH 39 phase, four cultivars of edible potatoes were treated with the following bio-stimulants: Asahi SL, Bio-Algeen S90 or Kelpak SL. The control object was plants potato sprayed with distilled water. The large amount of precipitation in the first year of the research contributed to an increased content of Fe and Mn in the potato tubers. The tubers...
Oxygen absorbers (AP) were used for packaging portioned Gouda cheese. Vacuum packaged cheese (VP), cheese packaged under modified atmosphere (MAP) and cheese packaged in ambient air (control samples) were compared. Cheese samples were chill stored for 30, 60 and 90 days. The gas composition in cheese packaging was analyzed, the counts of coliform bacteria, yeasts and molds in cheese were determined,...
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