The following paper presents the results of the examination of archaeological wood from excavations carried out in the gardens of Wilanów Palace. The main purpose of the research work was to determine its state of preservation. In order to accomplish this, chemical and physical examinations were carried out on wood samples taken from the level of the grotto foundations.
This paper presents the results of a detailed inventory of the historic manor park in Łęczna in the Lublin Voivodeship, conducted in the year 2011. This object is an example of combining elements of the eighteenth-century Italian garden with the nineteenth-century landscape park. The park area is 12 hectares. A user of the area is the King Casimir School. A detailed dendrological inventory of the park revealed 932 items, including 852 trees and 25 large groups of shrubs. Tree stand of the park in Łęczna is represented by 32 species and varieties of trees. In terms of numbers prevail: Tilia cordata Mill., Acer platanoides L., Fraxinus excelsior L., Carpinus betulus L. and Robinia pseudoacacia L. Rare species of the foreign origin are Acer platanoides ‘Schwedleri’, Acer saccharinum ‘Wieri’, Cladrastis lutea Rudd., Gleditsia triacanthos L., Platanus ×hispanica ‚Acerifolia’, Quercus macrocarpha Michx. and Pinus nigra J. F. Arnold. The possibilities and directions of restoration presented in this work are based on the collected data.
Some of the industrial brewer's yeasts strains preserved in the collection of the Institute of Agro-Food Biotechnology for 35 years were studied. Fermentation energy and velocity, apparent attenuation and yeast sediment layer was checked according to methods used in the Institute.
The Biolasol® liquid is an innovative solution used for perfusion, reperfusion and preservation of parenchymal organs of the abdominal cavity. Substances in the liquid prevent cellular oedema and help to maintain a proper water/mineral as well as acid/base balance in the intracellular environment. They also minimize free-radical injuries and ensure the integrity of the cellular membrane structure. The Biolasol® liquid has been shown to be much more efficient than the HTK liquid in the preservation of kidneys. The Biolasol® liquid containing 0.5 mM of vitamin C has been modified by adding ions of Se(IV), Zn(II), and their effect on the stability of the solution was examined. An accelerated aging test was applied to test the liquid stability. The test, based on the laws of chemical kinetics, was conducted at four temperatures at a 10°C step, that is: 50°C±0.05, 60°C±0.05, 70°C±0.05 and 80°C±0.05. The relative humidity equalled 75% of RH and the duartion of the test was 40 days. In order to determine the stability of the tested solutions, the Arrhenius Dependence equation was used, applied to the effect of temperature on the glucose decomposition reaction rate: lnk=lnA-(Ea/RT). The results indicate that the addition of zinc decreases the stability of the liquid by 30.5%, while the addition of selenium prolongs the stability by 8.21%. This is explained by the synergism of action of vitamin C and Se4+ antioxidant in the tested liquid. Zinc ions present in the solution increase the glucose decomposition reaction rate.
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