Temat: antimicrobial films - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Novel chitosan derivatives as films with an antimicrobial effect
Autorzy:: Niemczyk, Agata
El Fray, Mirosława
Powiązania:: https://bibliotekanauki.pl/articles/1035315.pdf
Data publikacji:: 2013
Wydawca:: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:: antimicrobial films
chitosan
dilinoleic acid
fatty acids
Opis:: This paper presents the results of chitosan acylation with linoleic (LA) and dilinoleic acid (DLA). The chemical structures of the new derivatives with different degrees of substitution of LA and DLA were assessed by Fourier transform infrared spectroscopy. Polymer films were prepared by solution casting and drying. The resistance of films to bacterial degradation was tested according ISO 846 standard: “Plastic-Evaluation of the Action of Microorganisms” and the antimicrobial properties were assessed using Gram-negative bacterium Escherichia coli and the fungi Candida albicans in an agar diffusion test. Bioassays showed an antimicrobial effect in direct contact with the material.
Źródło:: Progress on Chemistry and Application of Chitin and its Derivatives; 2013, 18, 18; 59-66
1896-5644
Pojawia się w:: Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Antimicrobial properties of chitosan solutions, chitosan films and gelatin-chitosan films
Przeciwdrobnoustrojowe właściwości roztworów chitozanowych, folii chitozanowych i żelatynowo-chitozanowych
Autorzy:: Malinowska-Pańczyk, E.
Staroszczyk, H.
Gottfried, K.
Kołodziejska, I.
Wojtasz-Pająk, A.
Powiązania:: https://bibliotekanauki.pl/articles/947459.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:: chitosan
chitosan film
gelatin-chitosan film
antimicrobial films
chitozan
folia chitozanowa
folia żelatynowo-chitozanowa
folie przeciwdrobnoustrojowe
Opis:: The antimicrobial properties of chitosan solutions and films against selected bacteria and the effect of chitosan incorporation into gelatin films were studied. The bactericidal effect of chitosan solutions increased with time and temperature of sample incubation. Two psychrotrophic strains Pseudomonas fluorescens and Listeria innocua were more sensitive to chitosan than mesophilic strains Escherichia coli and Staphylococcus aureus. The growth of bacteria under chitosan discs was inhibited. In the case of two component gelatin-chitosan films strong antimicrobial effect was also observed.
Zbadano właściwości przeciwdrobnoustrojowe roztworów i folii chitozanowych oraz dwuskładnikowych folii żelatynowo-chitozanowych, wobec wybranych bakterii. Stwierdzono zwiększenie bakteriobójczego działania roztworów chitozanu wraz ze wzrostem temperatury i wydłużeniem czasu inkubacji. Dwa psychrotrofowe szczepy Pseudomonas fluorescens i Listeria innocua wykazały większą wrażliwość na działanie chitozanu niż mezofilne szczepy Escherichia coli i Staphylococcus aureus. Wzrost badanych drobnoustrojów został całkowicie zahamowany pod krążkami z folii chitozanowych. Silne właściwości przeciwdrobnoustrojowe zaobserwowano również w przypadku dwuskładnikowych folii żelatynowo-chitozanowych.
Źródło:: Polimery; 2015, 60, 11-12; 735-741
0032-2725
Pojawia się w:: Polimery
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Materials based on chitosan enriched with zinc nanoparticles for potential applications on the skin
Autorzy:: Kulka, Karolina
Szmejkowska, Andżelika
Sionkowska, Alina
Wypij, Magdalena
Golińska, Patrycja
Powiązania:: https://bibliotekanauki.pl/articles/27324035.pdf
Data publikacji:: 2022
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: chitosan
zinc oxide nanoparticles
polymer films
antimicrobial activity
chitozan
biomateriały
biodegradowalność
Opis:: Chitosan as a nontoxic, biodegradable, and biocompatible biopolymer with film-forming properties can also be modified to improve its parameters. Modification of polymer films by the addition of nanoparticles is an increasingly common solution due to the higher efficiency of products at the nanoscale compared to the macroscale. In this work, thin chitosan films enriched with biogenic zinc oxide nanoparticles (ZnONPs) from Fusarium solani IOR 825 were obtained by the solvent evaporation method. The influence of nanoadditive on the physicochemical, mechanical, and antimicrobial properties of the polymeric matrix was evaluated. Two different concentrations of ZnONPs were added to the chitosan solution. Spectrometric measurements, mechanical tests, microscopic imaging, and microbiological tests were performed for nanoparticlesmodified and control samples. Analysis revealed that ZnONPs influence the properties of chitosan films. FTIR spectroscopy showed changes that are the result of interactions between polymer matrix and the additive. Modified samples were characterized by increased values of Young’s modulus and tensile strength. SEM analysis combined with energy-dispersive X-ray spectrometry confirmed the presence of zinc in the modified films. The addition of nanoparticles slightly affected the surface morphology of the tested samples, and an increase in roughness was observed. Microbiological tests showed the biostatic activity of the films containing ZnONPs. The obtained films based on chitosan with the addition of ZnONPs can be considered easy-to-obtain biomaterials with potential use as cosmetic and biomedical products.
Źródło:: Engineering of Biomaterials; 2022, 25, 167; 24--31
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Development of biodegradable polysaccharide-protein edible gel coat with antimicrobial properties for food products
Autorzy:: Kuprina, Elena E.
Yakkola, Anastasiya N.
Manuylov, Andrey N.
Kiprushkina, Elena I.
Shestopalova, Irina A.
Demidov, Pavel I.
Powiązania:: https://bibliotekanauki.pl/articles/2131514.pdf
Data publikacji:: 2021
Wydawca:: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:: biodegradable food films and coatings
chitosan
ediblefilms and coatings
environmental protection
formulation
mechanism of formation
physical and mechanical
physicochemical
protein hydrolysate
sensory
sodium alginate
technology
antimicrobial properties
Opis:: Food edible coatings are an important milestone in food production and one of the innovations in food packaging development. This article presents materials on the development of the formulation and technology for the manufacture of a novel composite coating based on sodium alginate, chitosan and protein hydrolysate obtained by the electrochemical method of double extraction from cod processing waste to obtain edible coatings for semi-finished fish products. Furthermore, the physicochemical, physical, mechanical and microbiological properties of this material are described.
Źródło:: Progress on Chemistry and Application of Chitin and its Derivatives; 2021, 26; 148-161
1896-5644
Pojawia się w:: Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:: Biblioteka Nauki

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