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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Production of biodegradable packaging with sheep wool fibres for medical applications and assessment of the biodegradation process

100%
Szatkowski P., Tadla A., Flis Z., Szatkowska M., Suchorowiec K., Molik E.
Animal Science and Genetics
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2022
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tom 18
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nr 3
2

Adsorption of antimicrobial surfactants by bacterial cells in the course of biodegradation processes

100%
Sirotkova L., Cupkowa V., Mlynarcik D., Devinsky F., Lacko I.
Polish Journal of Environmental Studies
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1994
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tom 03
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nr 2
A quaternary ammonium salt (A), a bisquaternary (FB), and an amine oxide (B) were tested for biodegradability using bacterial strains isolated from a municipal waste-water treatment plant Adsorption of the compounds by the cells was distinguished from actual biodegradation. The bisquaternary hard detergent FB was of lower affinity to the bacterial cells in comparison to soft compound A, where adsorption is accompanied by degradation. A soft surfactant, amine oxide (B) is also degraded without marked adsorption by cells. Adsorption of the compouds by the cells is also lower in mineral biodegradation medius where cell membranes are stabilised by ions.
3

Polymer biodegradation and biodegradable polymers - a review

86%
Leja K., Lewandowicz G.
Polish Journal of Environmental Studies
|
2010
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tom 19
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nr 2
255-266
Synthetic polymers are important in many branches of industry, for example in the packaging industry. However, they have an undesirable influence on the environment and cause problems with waste deposition and utilization. Thus, there is a tendency to substitute such polymers with polymers that undergo biodegradable processes. Increasing interest in applying polymers based on natural materials such as starch has been observed. This review describes biodegradation processes of xenobiotics such as aromatic compounds, plastics (PVA, polyesters, polyethylene, and nylon), and polymer blends (Starch/Polyethylene, Starch/Polyester, and Starch/PVA). Moreover, this review includes information about biodegradable polymers such as mixtures of synthetic polymers and substances that are easy digestible by microorganisms (chemically modified starch, starch-polymer composites, thermoplastic starch, and biodegradable packing materials), synthetic materials with groups susceptible to hydrolytic microbial attack (polycaprolactone), and biopolyesters (poly-β-hydroxyalkanoates). Production of this kind of material and introducing it to the market is important for the natural environmental. It may result in decreasing the volume of waste dumps.
4
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Content available

Cyklodekstryny, ich właściwości i zastosowanie w detoksykacji gleb

86%
Jozefaciuk G., Jozefaciuk J.
Acta Agrophysica
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2002
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tom 60
5

Isolation and characterisation of new Planococcus sp. strain able for aromatic hydrocarbons degradation

86%
Labuzek S., Hupert-Kocurek K. T., Skurnik M.
Acta Microbiologica Polonica
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2003
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tom 52
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nr 4
6

Changes of dehydrogenases activity in soils polluted with diesel fuel

72%
Hawrot M., Nowak A., Klodka D.
Polish Journal of Microbiology
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2005
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tom 54
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nr 1
Activity of the enzymes can give information on the kind and duration of the effects of pollutants on the metabolic activity of soil. Results of studies on the dehydrogenase activity in soils experimentally contaminated with diesel fuel, with and without modification used in investigation over biodégradation process (including fertilization, stirring and inoculation) were presented in paper. Studies with two rates of pollution were carried out for soils of various organic matter content and different soil particle size grading. Dehydrogenase activity was determined with TTC (2,3,5-triphenyltetrazolium chloride) as a substrate. Increase of dehydrogenase activity was found in the soils that were treated with diesel fuel. Regardless of pollution rate, usually higher activity was recorded in sandy soil. Variance analysis confirmed the highly significant influence of applied modifications on increase of the enzymatic activity in relation to not modified object.
7

Protection of natural composite against mould fungi

58%
Foksowicz-Flaczyk J., Walentowska J., Bujnowicz K., Korol J.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
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2013
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tom 81
8

Examination of biodegradation of hydrocarbons in emulsified systems

58%
Bielicka K., Kaczorek E., Olszanowski A., Voelkel A.
Polish Journal of Environmental Studies
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2002
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tom 11
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nr 1
This paper presents the biodegradation process carried out in water samples. Aliphatic hydrocarbons were degraded in the presence of the emulsifier. Non-ionic surfactant was used as the emulsifier. Two bacteria strains from the Pseudononaceae family were used in this process. We used Solid-Phase Extraction and gas chromatography for qualitative and quantitative determination of the components of the biodegradation process.
9

Biodegradable foil extruded from thermoplastic starch

51%
Rejak A., Moscicki L.
Teka Komisji Motoryzacji i Energetyki Rolnictwa
|
2006
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tom 06
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