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Wyszukujesz frazę "biosurfactants" 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:
Współczesne zastosowania związków powierzchniowo czynnych
Modern applications of surface active agents
Autorzy:
Dywicki, Paweł
Grabowska, Ola
Chmurzyński, Lech
Powiązania:
https://bibliotekanauki.pl/articles/172143.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
związki powierzchniowo czynne
rolnictwo
przemysł spożywczy
przemysł farmaceutyczny
biosurfaktanty
surface active agents
agriculture
food industry
pharmacy industry
biosurfactants
Opis:
Surfactants have been known to mankind since the dawn of time. They have been used primarily as washing and cleaning agents. However, today they are used much more often in many fields of industry. This work focuses on two areas of surfactants use, the agriculture and the food industry due to the direct relationship between these two issues. In agriculture, surfactants play a number of important roles. One of the problems of modem agriculture is the low efficiency of spraying, associated with the low absorption of liquid utility for plants. This problem is solved by surfactants, as demonstrated by the example of glyphosate and the organosilicon compound Silwet® L-77. Nowadays, substitutes for conventional surfactants are being sought. Compounds produced by microorganisms are under great interest of scientists. It has been shown that they are characterized by the lower toxicity as well as high biodegradability, while maintaining the characteristics and properties of synthetic compounds. Directly related to the agriculture, the food industry also often uses surfactants. In the production and processing of food surfactants play the role of such compounds as emulsifiers, stabilizers, additives improving the texture of products and increasing the durability of products. Sorbitan esters, e.g. sorbitan monolaurate, their ethoxylated derivatives, e.g. Polysorbate 20, as well as sucrose esters, e.g. sucrose monostearate, are readily used for this purpose. Great emphasis is placed on the safety of compounds used in the food industry. As in the case of agriculture, biosurfactants and compounds of natural origin are tested for use in the food industry. Their use is not limited to being ingredients of products. They can play a biocidal, as well as a protecting role against surface colonization by microorganisms.
Źródło:
Wiadomości Chemiczne; 2020, 74, 5-6; 391-409
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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