Ograniczanie wyników

Czasopisma help

  1. 7 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

  2. 3 BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

  3. 3 Current Topics in Biophysics

  4. 3 Polish Journal of Food and Nutrition Sciences

  5. 2 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

Więcej...
Autorzy help

  1. 6 Kowaluk G.

  2. 3 Gumowska A.

  3. 2 Buszman E.

  4. 2 Cabalar A. F.

  5. 2 Jurkovic P.

Więcej...
Lata help

  1. 1 2022

  2. 1 2021

  3. 2 2020

  4. 3 2019

  5. 2 2017

Więcej...
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 33

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  biopolymer
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Laboratory assessment of permeability of sand and biopolymer mixtures

100%
Wiszniewski M., Skutnik Z., Cabalar A. F.
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
|
2013
|
tom 45
|
nr 2
This research presents a method of creating seepage barriers in a sandy soil using biopolymer additives (biosubstance), which consist of polysaccharides and water. Polysaccharides strongly interact with water to produce a viscous suspension. The paper aims to investigate the infl uence of a biosubstance employed in a highly permeable sandy soil. Amount of the biopolymer used in a sample were 0.5, 1.0 and 1.5%, by dry weight. The test results indicate that the hydraulic conductivity signifi cantly decrease with the amount of biosubstance added but only slightly increase when curing time gets longer. It is thought that such application, which is a relatively new soil improvement technique, could be used as a seepage barrier installation required to protect some geotechnical works including foundation, underground structures and waste disposals.
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Some geomechanical properties of a biopolymer treated medium sand

100%
Wiszniewski M., Skutnik Z., Biliniak M., Cabalar A. F.
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
|
2017
|
tom 49
|
nr 3
3

The thermodynamics of biomolecular sequences

100%
Dewey T. G.
Cellular and Molecular Biology Letters
|
1999
|
tom 04
|
nr 1
A statistical mechanical treatment of biopolymers is presented that includes the sequence information as an internal coordinate. This approach allows an assessment of the contribution of sequence information to the thermodynamic entropy. Even in cases where the sequence composition has no effect on the intersubunit interactions, the sequence composition contributes to the entropy of the system. Using a path integral representation, the canonical partition function can be represented as a product of a polymer configurational path integral and a sequence walk path integral. In most, biological instances the sequence composition influences the potential energy of intersubunit interaction. Consequently, the two path integrals are not separable, but rather "interact" via a sequence-dependent configurational potential. Biological constraints can also be built into the system and these effectively introduce an external potential. In proteins and RNA, the sequence walk occurs in dimensions greater than 3 and, therefore, will be an ideal "polymer". The Markovian nature of this walk can be exploited to show that all the structural information is contained in the sequence. This later effect is a result of the dimensionality of the sequence walk and is not necessarily a result of biological optimization of the system.
4

Infrared studies of natural pheomelanins

100%
Kolczynska-Szafraniec U., Bilinska B.
Current Topics in Biophysics
|
1992
|
tom 16
|
nr 2
5

Biopolimery w Akcji COST FP1105

86%
Kowaluk G.
Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie
|
2012
|
tom 53
|
nr 1-2
6

Chitosan derivatives, prebiotics?

86%
Mateos-Aparicio I., Mengibar M., Iglesias S., Kolida S., Rastall R., Heras A.
Polish Journal of Food and Nutrition Sciences
|
2011
|
tom 61
|
nr Suppl.1
7

Molecular identification of polyhydroxyalkanoates-producing bacteria isolated from enriched microbial community

86%
Ciesielski S., Pokoj T., Mozejko J., Klimiuk E.
Polish Journal of Microbiology
|
2013
|
tom 62
|
nr 1
Polyhydroxyalkanoates (PHAs) are especially interesting because of their similar properties to synthetic plastics and their potential use as biodegradable polymers. Many strategies have been employed to effectively and economically produce PHAs, among them a production process based on mixed microbial populations, enriched from activated sludge could be one of the alternative technologies. Defining the bacterial species creating these anonymous populations is crucial for the improvement of cultivation strategy. Moreover, enriched bacterial populations could be a promising source for microbes, useful in many biotechnological projects. The main object of this study was to characterize the microorganisms creating the microbial consortium cultured towards PHAs production. After cultivation, bacteria were identified using the 16S rRNA gene sequencing approach. The presence of genes engaged in PHAs synthesis was detected using PCR. The performed analysis revealed that among eleven isolated bacterial strains, four possessed the ability of polyhydroxybutyrate synthesis.
8

The biopolymers as supports of enzymes

86%
Tylingo R., Gorczyca G.
Polish Journal of Food and Nutrition Sciences
|
2011
|
tom 61
|
nr Suppl.1
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Optimal conditions for levan biopolymer production and its use in the synthesis of bactericidal levan-ZnO nanocomposite

86%
Taran M., Lotfi M., Safaei M.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2019
|
tom 100
|
nr 4
10

Degradation of natural rubber by Achromobacter sp. NRB and evaluation of culture conditions

86%
Berekaa M. M., Barakaat A., El-Sayed S. M., El-Aassar S. A.
Polish Journal of Microbiology
|
2005
|
tom 54
|
nr 1
A natural rubber degrading candidate was isolated from a soil sample from Aswan, Egypt. The strain was able to grow on natural rubber as a sole source for carbon and energy. According to its degradation behavior, it grew adhesively and in direct contact with the rubber substrate and led to disintegration of the material during cultivation. Furthermore, this strain was not able to form a clear zone (translucent halos) around bacterial colonies after cultivation on NR latex plates. Taxo-nomic analysis of the strain based on partial 16S rRNA similarity examinations indicated that bacterial candidate belongs to genus Achromobacter sp. Schiff's reagent staining tests performed during cultivation of the strain on NR latex gloves of different sizes, treated or nontreated, revealed that the strain was able to colonize the rubber surface. Formation of bacterial films and occurrence of compounds containing aldehyde groups during cultivation was observed. The tested strain showed a higher colonization efficiency on small or treated pieces of NR latex gloves, while a lower colonization efficiency was recognized when grown on large or nontreated NR latex gloves. Plackett-Burman experimental design, based on numerical modeling, was applied to evaluate the significance of culture conditions affecting natural rubber degradation by the bacterial candidate. Eleven variables through fourteen trials were studied simultaneously. Based on rubber mineralization data, the highest positive variables affecting rubber degradation were NR granules, K₂HPO₄ Na-succinate and NH₄Cl, while MgSO₄ x 7H₂O and KH₂PO₄ were the lowest significant variables.
11
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The quality of the wood bonding depending on the method of applying the selected thermoplastic biopolymers

72%
Gumowska A., Kowaluk G.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2021
|
tom 116
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Biopolymers in wood-based materials – a recent review

72%
Gumowska A., Kowaluk G.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2020
|
tom 110
13
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Selected aspects of thermoplastic starch production

72%
Combrzynski M., Mitrus M., Moscicki L., Oniszczuk T., Wojtowicz A.
Teka Komisji Motoryzacji i Energetyki Rolnictwa
|
2012
|
tom 12
|
nr 1
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Elastin-like polypeptides-alternative way of recombinant protein purification

72%
Kowalczyk T., Hnatuszko-Konka K., Gerszberg A., Kononowicz A. K.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 3
15

Manufacturing of biobased packaging materials for the food industry

72%
Otles S., Otles S.
Acta Scientiarum Polonorum. Technologia Alimentaria
|
2004
|
tom 03
|
nr 2
13-17
Engineering of a biobased package or packaging material requires knowledge of the processing and material properties of the polymers. If the properties of the native biopolymer are not identical to the required one, or if the polymer by nature is not thermoplastic, a certain modification of the polymer must take place. For very specific requirements (very low gas permeability or high water resistance) it is unlikely that one polymer will be able to provide all required properties even after modifications. Hence, it is necessary to use multiple materials in a composite, a laminate or co-extruded material.
16
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Selected aspects of production and characterization of layered biopolymer composite bonded with a cellulose-based binder

72%
Dasiewicz J., Kowaluk G.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2022
|
tom 119
17

New physical methods in structural analysis of functional properties of the biopolymer dough

72%
Weipert D.
Polish Journal of Food and Nutrition Sciences
|
1998
|
tom 07
|
nr 2 Suppl.
18

The effect of metal ions incorporated into dopa-melanin on chloroquine binding ability

72%
Buszman E., Kwasniak B., Wilczok T.
Current Topics in Biophysics
|
1992
|
tom 16
|
nr 2
19

Chemical characteristics of melanin from Cladosporium cladosporioides

72%
Chodurek E., Latocha M., Kurkiewicz S., Buszman E., Swiatkowska L., Wilczok T.
Bulletin of the Polish Academy of Sciences. Biological Sciences
|
1998
|
tom 46
|
nr 2
20

Biopolymers based on renewable resources: environmental and economic aspects

72%
Murmura F., Taddeo R., Liberatore L.
Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze
|
2007
|
nr 2
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.