Dual CO2 Responsiveness of an Oil-In-Water Emulsion by Using Sodium Oleate and Water-Soluble Tertiary Amines

Langmuir ◽  
2021 ◽  
Author(s):  
Wenjing Ma ◽  
Shanshan Dai ◽  
Peiyao Zhu ◽  
Ru Zhou ◽  
Hongsheng Lu
Keyword(s):  
Sodium Oleate ◽  
Water Soluble ◽  
Tertiary Amines ◽  
Water Emulsion ◽  
Oil In Water ◽  
Oil In Water Emulsion

scholarly journals Preparation of Fluorescent Molecularly Imprinted Polymers via Pickering Emulsion Interfaces and the Application for Visual Sensing Analysis of Listeria Monocytogenes

Polymers ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 984 ◽  
Author(s):  
Xiaolei Zhao ◽  
Yan Cui ◽  
Junping Wang ◽  
Junying Wang
Keyword(s):  
Listeria Monocytogenes ◽  
Sample Pretreatment ◽  
Spherical Shape ◽  
Pickering Emulsion ◽  
Food Samples ◽  
Water Soluble ◽  
Water Emulsion ◽  
Molecularly Imprinted ◽  
Oil In Water ◽  
Oil In Water Emulsion

In this work, a novel molecularly imprinted polymer (MIP) with water-soluble CdTe quantum dots (QDs) was synthesized by oil-in-water Pickering emulsion polymerization using whole Listeria monocytogenes as the template. Listeria monocytogenes was first treated by acryloyl-functionalized chitosan with QDs to form a bacteria–chitosan network as the water phase. This was then stabilized in an oil-in-water emulsion comprising a cross-linker, monomer, and initiator, causing recognition sites on the surface of microspheres embedded with CdTe QDs. The resulting MIP microspheres enabled selective capture of the target bacteria via recognition cavities. The target bacteria Listeria monocytogenes was detected. Scanning electron microscopy (SEM) characterization showed that the MIPs had a rough spherical shape. There was visual fluorescence detection via quenching in the presence of the target molecule, which offered qualitative detection of Listeria monocytogenes in milk and pork samples. The developed method simplified the analysis process and did not require any sample pretreatment. In addition, the fluorescence sensor provided an effective, fast, and convenient method for Listeria monocytogenes detection in food samples.

Interface between food grade flavour and water soluble galactan biopolymer to form a stable water-in-oil-in-water emulsion

2019 ◽  
Vol 135 ◽  
pp. 445-452 ◽  
Author(s):  
Digambar Kavitake ◽  
Sangeeta Balyan ◽  
Palanisamy Bruntha Devi ◽  
Prathapkumar Halady Shetty
Keyword(s):  
Water Soluble ◽  
Water Emulsion ◽  
Food Grade ◽  
Oil In Water ◽  
Oil In Water Emulsion

scholarly journals Ultrafiltration of oil-in-water emulsion by using ceramic membrane: Taguchi experimental design approach

2014 ◽  
Vol 12 (2) ◽  
pp. 242-249 ◽  
Author(s):  
Jania Milić ◽  
Irena Petrinić ◽  
Andreja Goršek ◽  
Marjana Simonič
Keyword(s):  
Experimental Design ◽  
Ceramic Membrane ◽  
Cross Flow ◽  
Ceramic Membranes ◽  
Optimization Criterion ◽  
Water Soluble ◽  
Taguchi Experimental Design ◽  
Water Emulsion ◽  
Oil In Water ◽  
Oil In Water Emulsion

AbstractIn this study, a Taguchi experimental design methodology was used to determine the importance of process parameters influencing the ultrafiltration (UF) of oil-in-water emulsions. Four parameters including pH (5–11), oil concentration (φ) (0.5–3% (v/v)), temperature (T) (25–45°C) and trans-membrane pressure (TMP) (1–5 bar) were studied at three levels. The highest flux was used as optimization criterion. In order to reduce the number of experiments, a Taguchi method was applied. Analysis of variance (ANOVA) was used to determine the most significant parameters affecting the optimization criterion.Filtration experiments were performed in a cross-flow operation at a total recycle condition in a laboratory-scale plant. The ceramic UF membrane with a pore size of 50 nm was employed in a tubular module with an active area of 0,418 m2. We used water-soluble cutting oil mixed with water as a model oil-in-water emulsion. During the experiment, the drop size and zeta potential distributions were evaluated.The optimum conditions for UF providing the highest flux were found at TMP = 5 bar, pH = 7, and φ = 0.5 v/v%. The pH of emulsion had the highest impact on COD retention. The results of this study could be used as a guideline for operating UF systems with ceramic membranes at optimal conditions.

scholarly journals Fortification of milk with phytosterol and its effect on sensory and physicochemical properties

2018 ◽  
Vol 57 (1) ◽  
pp. 63-70
Author(s):  
V. Nagarajappa ◽  
S.N. Battula ◽  
S. Arora ◽  
L.N. Naik
Keyword(s):  
High Performance ◽  
Significant Loss ◽  
Water Soluble ◽  
Water Emulsion ◽  
Fortified Milk ◽  
Phytosterol Content ◽  
Oil In Water ◽  
Emulsion Formulation ◽  
Initial Content ◽  
Oil In Water Emulsion

AbstractPhytosterols are a group of lipophilic steroid alcohols found in plants, which have been shown to lower cholesterol when supplemented in the diet. A commercial phytosterol preparation was added to milk in the form of an oil-in-water emulsion. For the preparation of an emulsion, diacetyl tartaric acid ester of mono- and diglycerides was used as an emulsifier and butteroil was used as a source of fat. Three emulsion formulations, i.e. A (8% phytosterols), B (10% phytosterols) and C (12% phytosterols), were prepared in which the levels of emulsifier (6.5%) and butteroil (10%) were kept constant, and each emulsion was added to milk at a rate of 5% (w/w). Based on sensory evaluation, B-emulsion formulation was selected for fortification of milk. The phytosterol content of the fortified milk determined by reverse-phase high-performance liquid chromatography was 410.8 mg/100 g. No significant loss in the initial content of phytosterol was observed after 1 week of storage. Sensory and physicochemical analyses indicated that significant differences were not observed between control and fortified milk samples up to 7 days of refrigerated storage. The present study suggests that it is feasible to add phytosterol as a functional ingredient in milk in the form of water-soluble emulsion to enhance health benefits of consumers. Two servings of such fortified milk per day provide almost the entire recommended daily requirement of phytosterol.

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