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Evaluation of drops dimensions and rheological properties in production of multiple emulsion in a vessel

Major-Godlewska Marta

Polish Journal of Chemical Technology

2024

Vol. 26, nr 1

88--96

The structure and size of droplets of the inner phase of a multiple emulsion and rheological properties of the produced multiple emulsion are presented in this paper. The multiple emulsion was produced in a stirred vessel equipped with four baffles. In the study, two different stirrers: turbine impeller and Rushton turbine impeller were used. The liquids used in the produced multiple emulsion were: distilled water and refined sunflower oil. 8 g and 16 g lecithin from soya beans were used as an emulsifier. The preparation time was respectively 15 min. and 45 min. The structure of the obtained emulsions is presented in the form of photos taken with the diagnostic inverted microscope. The results size of droplets were presented in the form of graphics as a distribution of drops. The rheological properties of the multiple emulsion were presented graphically and it was described using the rheological model.

Emulsje wielokrotne - wielofazowe nośniki nutraceutyków w żywności funkcjonalnej

Markowska-Radomska A., Dłuska E., Metera A.

Inżynieria i Aparatura Chemiczna

2018

Nr 4

106--107

Opracowano i wytworzono wielofazowe strukturyzowane nośniki emulsje podwójne i potrójne ze składnikami bioaktywnymi (olej sojowy i Rodamina B - analog witaminy E) czułe na zmianę pH 0 znaczeniu profilaktycznym w chorobach cywilizacyjnych. Zbadano uwalnianie Rodaminy B z emulsji podwójnych w warunkach symulujących środowisko jamy ustnej, przełyku i żołądka (pH: 7, 5 1 2). Uzyskane rezultaty potwierdzają perspektywę wykorzystania struktur emulsyjnych do jednoczesnej enkapsulacji, dostarczania i uwalniania kilku nutraceutyków.

The multiphase structured pH sensitive carriers in a form of double and triple emulsions with co-encapsulated bioactive ingredients (soybean oil and Rhodamine B - analog of vitamin E) of prophylactic significance in civilization diseases were developed and produced. The release of Rhodamine B from double emulsions was studied under conditions simulating the environment of oral cavity, esophagus and stornach (pH: 7, 5 and 2). The obtained results are promising in perspective of using emulsion structures for coencapsulation, co-delivery and co-release of several nutraceuticals.