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Wyszukujesz frazę "Soforolipidy" wg kryterium: Temat


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Tytuł:
Efekty synergiczne i antagonistyczne między biosurfakantami z grupy soforolipidów i alkilopoliglikozydów o zróżnicowanej długości łańcucha alkilowego oraz ich wykorzystanie w projektowaniu środków myjących dla przemysłu spożywczego
Synergistic and antagonistic effects between biosurfactants from the group of soforolipids and alkylopolyglikosides of various alkyl chain lenghts and their use in the design of cleaning agents for the food industry
Autorzy:
Jędrzejczyk, Anna
Pełech, Robert
Janus, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2200420.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
biosurfaktanty
soforolipidy
alkilopoliglikozydy
działanie synergistyczne
działanie antagonistyczne
biosurfactants
sophorolipids
alkyl polyglycosides
synergistic effects
antagonistic effects
Opis:
The paper presents the results of testing the performance parameters of mixtures of biosurfactants from the group of sophorolipids and alkylpolyglycosides with different alkyl chain lengths. In order to determine the synergistic and antagonistic effects in two-component surfactant systems, research was carried out to determine the performance parameters determining their use in washing preparations, such as foam height (FH) and foam stability (FS) and wetting angle analysis (CA). The results are presented in tables 3, 4 and 5. Determination of the content of the active substance in the raw material samples was carried out using the method of refractometric determination of the refractive index. Both synergistic and antagonistic effects were found. On the basis of the obtained test results, the highest synergistic effect of performance parameters was obtained for the mixture of biosurfactants from the group of sophorolipids and the alkylpolyglycoside D-glucopyranose, oligomer, C10-16-alkylglycosides. In this case, the synergy occurred for all performance parameters FH (14%), FS (28%) and CA (46%). The synergistic effects were used to design a concentrated formulation of a cleaning agent in the food industry. The planned experiment method was used in order to obtain an optimal solution in terms of ensuring the appropriate level of cleaning efficiency. A twenty-two-point experiment plan was developed based on the Scheff model in order to optimize the composition in terms of obtaining the operational parameters of the mixture constituting the formulation's framework assumed in the optimization criteria. Optimization criteria were determined on the basis of studies of commercially available analogues. Thanks to the use of formulations of raw materials exhibiting synergistic effects in the design of the frame, the foam height and stability higher than those specified in the optimization criteria were obtained.
Źródło:
Wiadomości Chemiczne; 2023, 77, 3-4; 179--200
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of medium composition on the production of sophorolipids and the tensiometric properties by Starmerella bombicola MTCC 1910
Autorzy:
Vedaraman, N.
Venkates, N.
Powiązania:
https://bibliotekanauki.pl/articles/779571.pdf
Data publikacji:
2010
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
starmerella bombicola
podłoże lipidowe
optymalizacja
Soforolipidy
właściwości tensometryczne
biosurfactant
Lipidic substrates
optimization
Sophorolipids
Starmerella bombicola
Tensiometric properties
Opis:
Starmerella bombicola a teleomorph of Candida bombicola is capable of producing extracellular secondary metabolites known as sophorolipids. In the present work the performance of Starmerella in producing sophorolipids, with standard medium ingredients glucose, sunflower oil, yeast extract and urea was studied. The quantities of different medium ingredients were optimized to maximize the production of sophorolipids. Variation in tensiometric properties like surface tension and interfacial tension during the incubation period were also reported. The optimized mixed substrate composition was found to be 200 g/l, containing equal amounts of glucose and sunflower oil, 4 g/l of yeast extract and 0.6 g/l of urea. With the optimized substrate composition 38.6 g/l of sophorolipids was obtained. The minimum surface tension produced by the culture free cell broth was 36.2 mN/m. Increasing the temperature from 25oC to 35° C has shown adverse effects on sophorolipids production.
Źródło:
Polish Journal of Chemical Technology; 2010, 12, 2; 9-13
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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