Szkola Glowna Gospodarstwa Wiejskiego w Warszawie

Warsaw, Poland

Szkola Glowna Gospodarstwa Wiejskiego w Warszawie

Warsaw, Poland
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Bieganska-Hensoldt S.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie | Rosolowska-Huszcz D.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
Postepy higieny i medycyny doswiadczalnej (Online) | Year: 2017

One of the main causes of mortality in developed countries is atherosclerosis. The pathogenesis of atherosclerosis is associated with endothelial dysfunction. Consumption of food rich in natural antioxidants including polyphenols significantly improves endothelial cells functions. Polyphenols have a beneficial effect on the human body and play an important part in protecting the cardiovascular system. Polyphenols present in food have antioxidant, anti-inflammatory, antihypertensive, antithrombotic and antiproliferative properties. Catechins cause an increase in the activity of endothelial nitric oxide synthase (eNOS) and increased production of nitric oxide (NO) and decrease in blood pressure. Catechins also reduce platelet adhesion, lower the concentration of C-reactive protein and tumor necrosis factor alpha and interleukin-6. Resveratrol inhibits NADPH oxidase expression, increases the expression of eNOS and NO production as well as decreases the expression of proinflammatory cytokines, and also lowers the concentration of the soluble forms of adhesion molecules - sICAM-1 and sVCAM-1 in blood. Quercetin reduces the blood level of low density lipoprotein cholesterol, lowers blood pressure, reduces the concentration of C-reactive protein and F2-isoprostane level. Curcumin has antagonistic activity to homocysteine. Curcumin increases the expression of eNOS and reduces oxidative DNA damage in rat cardiomyocytes. Numerous attempts are taken for improving the bioavailability of polyphenols in order to increase their use in the body.

Adamska A.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie | Rutkowska J.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
Postepy Higieny i Medycyny Doswiadczalnej | Year: 2014

This review analyzes the current state of knowledge on odd- and branched-chain fatty acids present in milk fat. Special attention is devoted to the characteristic, synthesis in ruminants, factors affecting their content in milk fat and pro-health properties of these compounds. The group of odd- and branched-chain fatty acids includes mainly saturated fatty acids with one or more methyl branches in the iso or anteiso position. These fatty acids are largely derived from ruminal bacteria and they have been transferred to ruminant tissue (milk and meat). For that reason they have been used as biomarkers of rumen fermentation. Odd- and branched- chain fatty acids are exogenous products for humans, and therefore have specific properties. The results of research from recent decades show that odd- and branched-chain fatty acids have anti-cancer activity. Branched-chain fatty acids may reduce the incidence of necrotizing enterocolitis. Additionally, these compounds have a beneficial effect on proper tissue function and on functioning and development of the infant gut, whereas odd-chain fatty acids are considered as biomarkers of milk fat intake by humans. So far, not all the mechanisms of activity of these compounds are known thoroughly. They should be more carefully studied for application of their biological effects in prevention and treatment. Copyright © Postepy Higieny i Medycyny Dos̈wiadczalnej 2015.

Use of the forest is the oldest form of human activity and also occurs if it takes place without the physical pres-ence of man in the woods, becoming destructive action - intentional or unintentional, or creative activity - iden-tifying and implementing specific needs. Use of forest functions such as: cultural, moral, ethical, religious, and many others, is not always quantifiable, and their direct measurement and evaluation, can be very difficult. This is due to both lack of appropriate economic tools and methods for the direct environmental analysis, as well as an inability to identify the various functions played by forests. The article is discussing the history of sustainable development in forestry, which opens with the law signed in 1364 by Philip VI of France, ordering that owners of the forest must take care of it. The next great theorists and practitioners of Forestry (Carlovitz, Cotta, Hundeshagen, Heyer), develop the concept, building a cohesive, well thought-structures of proceedings in the context of preserving stability, continuity and uniformity forest use. The real problem in implementation of the concept of sustainable forestry and forest multifunctionality, is un-solvable difficulty in anticipating the expectations of future generations as to the condition, appearance and composition of future forests. should be noted that promises benefits of the terms used in sustainable forest man-agement (SFM), in relation to the multifunctional forestry cannot be met simultaneously and immediately. In forestry practice, all the forest functions, can be met only in a very long time horizon - calculated life expectancy of trees and stands. The search for solutions in this area should include not only areas of the modern, current knowledge, both the forest and in other branches of science, but also traditional knowledge. This would mean, that traditional know-ledge, significantly important for the practice of forestry, can be the basis for the understanding of the multi-functionality of the forest in the context of sustainable development.

Kurcz A.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie | Blazejak S.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie | Kot A.M.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie | Bzducha-Wrobel A.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
Postepy Mikrobiologii | Year: 2016

Both glycerol and potato wastewater are difficult-to-utilize waste from industrial processing. Thus, it is necessary to search for new economical methods of waste utilization to obtain products of higher value, decrease the production costs and protect the environment. One of the solutions to this problem might be simultaneous application of glycerol and potato wastewater as components of culture media for the production of Candida utilis fodder yeast biomass. This yeast strain is able to use glycerol from culture media as the only source of carbon, while the deproteinated potato wastewater might be the source of nitrogenous compounds and minerals. As a result, there is the possibility to obtain C. utilis fodder yeast biomass rich in such valuable nutrients as protein, fat, β-glucans, vitamins and microelements.

Karwowski W.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie | Orlowski A.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
Przeglad Elektrotechniczny | Year: 2014

This paper is concerned with the use of the content management system Drupal to develop prototype system for supporting knowledge management in plant production. Assumptions of knowledge management system for plant production, together with general architecture of such system, are presented. Moreover, methods how to use existing Semantic Web data to enrich site content are demonstrated.

Obstawski P.,Szkola Glowna Gospodarstwa Wiejskiego w Warszawie
Przeglad Elektrotechniczny | Year: 2012

In article represented the possibility of utilization parametral identification to diagnostics of heat exchangers in operate conditions. The worked out on the ground of the real measuring data model in differential equations form transformed to transfer function figure. Marked step characteristic and Bode characteristic of individual components exchanger, on the ground defined it's dynamics, which makes possible execution optimization work of exchanger in operate conditions.

Kot A.M.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie | Blazejak S.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie | Kurcz A.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie | Gientka I.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie
Postepy Mikrobiologii | Year: 2015

The yeast which can produce more than 20% lipids in their dry matter are called oleaginous and belong mainly to the genera Yarrowia, Rhodotorula, Rhodosporidium, Cryptococcus, Trichosporon and Lipomyces. The synthesis and storage of fat in yeast cells can be achieved via two pathways. In the first method - de novo, the acetyl-CoA and malonyl-CoA molecules are substrates of the lipid for the synthesis, while in the ex novo method, the hydrophobic compounds present in the environment are utilized. The process of lipid biosynthesis in yeast cells is affected by environmental factors such as carbon and nitrogen source in the medium, the C/N molar ratio, pH, temperature and the time of the cultivation. Microbial synthesis as the type of fat production process has many advantages, since it is insusceptible to weather conditions and the season of the year. Moreover, yeast show a rapid growth rate, which significantly shortens the production cycle. The main drawback of the industrial SCO production is low fat yield per unit of culture medium, which increases the total cost of the project. Microbiological fat synthesized by yeast might be used as a substitute for vegetable oils in human nutrition or as a substrate for the production of biodiesel.

Chojnacka-Ozga L.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie | Gomolka J.,Nadlesnictwo Brzeg | Ozga W.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie
Scientific Review Engineering and Environmental Sciences | Year: 2014

The aim of the study was to preliminary defi ne the factors affecting the formation of lightning gaps in forest areas in the lowland area. During realization of the research purpose, there was carried out the analysis of research materials inventory stands at the Brzeg Forest District, and their verification has been made during identifying the damage in the area. As a result of the studies, there were identifi ed and characterized 110 lightning gaps. Individual trees were damaged in about 87% of cases. Damaged trees or groups of trees were mostly located at the southern and south-eastern edge of forests. In more than 90% cases, investigated objects were localized on the forest edge or at the maximum distance of 2 km inside the forest. The terrain had also the infl uence on lightning gaps occurrence - the trees situated on slope of acclivity were more frequently damaged. Almost 60% of lightnings had place on the types of soils which are appropriate for humid group of forest abodes. Most often species hit by lightnings were: oak - 72,5%; pinetree - 16,5%. Mainly the trees from fi rst three places from Kraft's classifi cation were hit: oak - 1 (27%); 2 (35%); 3 (30%); pine tree - 1 (27%); 2 (52%); 3 (11%). The most exposed were the oldest trees in age of cutting down or around this age. These are mainly standstills or trees on the walls of forest stands. © 2014, WULS - SGGW Press. All rights reserved.

The aim of this study was an evaluation of suitability of the conceptual Nash model for the simulation a flow hydrograph in a urbanized catchment - in the example of the Potok Słuzewiecki catchment in Warsaw. The evaluation of suitability of the model has been carried out on the basis of the analysis of the compatibility between measured and simulated maximum flows of hydrographs. This paper presents a procedure of the computer model developed by the author, which was used for simulation flows. The range of the work included the analysis of parameters of the Nash model (N, K), which were determined based on rainfall-runoff data for 13 selected events. The parameters in the Nash model were calculated using the method of statistical moments for two scenarios: assuming rainfall depths determined on the basis of one or two rainfall stations.

Krzyczkowska J.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie | Fabiszewska A.U.,Szkola Glowna Gospodarstwa Wiejskiego W Warszawie
Postepy Mikrobiologii | Year: 2015

Yarrowia lipolytica is one of the most extensively studied "non-conventional" yeast. It is considered as nonpathogenic and several processes based on this organism were generally recognized as safe (GRAS) by the Food and Drug Administration (FDA, USA). Numerous unique physiological as well as biochemical properties exhibited by these microorganisms allow their wide use in biotechnology of food. High secretory capacity contributes to the production of a number of important metabolites, including organic acids, polyalcohols, carotenoids, aroma compounds, single cell oil or microbial surfactants. The sequenced genome and fairly well studied metabolism of this yeast species allows also for its usage as a model in numerous basic research in the field, including secretory protein, biogenesis of peroxisomes or lipid homeostasis. In this review, we have summarizedthe potential applications of the yeast Y. lipolytica, including the commercialization of some processes. The article provides also a synthetic description of the systematics, morphology and physiology of the species.

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