Topics

Interfacial structure of 70% fish oil-in-water emulsions stabilized with combinations of sodium caseinate and phosphatidylcholine.

08:00 EDT 2nd July 2019 | BioPortfolio

Summary of "Interfacial structure of 70% fish oil-in-water emulsions stabilized with combinations of sodium caseinate and phosphatidylcholine."

We report on the structural evaluation of high fat fish oil-in-water emulsions emulsified with sodium caseinate (CAS) and phosphatidylcholine (PC). The microemulsions contained 70% (w/w) fish oil with 1.05-1.4% (w/w) CAS and 0.4-1.75% (w/w) PC and were studied by the combination of light scattering together with small-angle X-ray and neutron scattering (SAXS/SANS). Aqueous CAS forms aggregates having a denser core of about 100 kDa and less dense shell about 400 kDa with the hard sphere diameter of 20.4 nm. PC appears as multilayers whose coherence length spans from 40 to 100 nm. PC monolayer separates oil and water phases. Moreover, 80% CAS particles are loosely bound to the interface but are not forming continuous coverage. The distance between aggregated CAS particles in microemulsion is increased compared to CAS aggregates in pure CAS-in-water system. PC multilayers become larger in the presence of oil-water interface compared to the pure PC mixtures. Bilayers become larger with increasing PC concentration. This study forms a structural base for the combination of CAS and PC emulsifiers forming a well-defined thin and dense PC layer together with thick but less dense CAS layer, which is assumed to explain its better oxidative stability compared to single emulsifiers.

Affiliation

Journal Details

This article was published in the following journal.

Name: Journal of colloid and interface science
ISSN: 1095-7103
Pages: 183-190

Links

DeepDyve research library

PubMed Articles [14643 Associated PubMed Articles listed on BioPortfolio]

Water-in-oil Pickering emulsions stabilized by an interfacial complex of water-insoluble polyphenol crystals and protein.

Long term stabilization of water-in-oil (W/O) emulsions remains a particularly challenging problem in colloid science. Recent studies have shown that polyphenols act as Pickering stabilizers at the wa...

Impact of gum Arabic on the partition and stability of resveratrol in sunflower oil emulsions stabilized by whey protein isolate.

In protein-stabilized oil-in-water emulsions, a co-emulsifier may also be an antioxidant, increasing the oxidative stability of the oil and adding nutritional value to the formulation. We investigated...

Droplet-stabilized oil-in-water emulsions protect unsaturated lipids from oxidation.

Droplet-stabilized emulsions use fine protein-coated lipid droplets - the shell - to emulsify larger droplets of a second lipid - the core. This study investigated the oxidation resistance of polyunsa...

Microgel Particles at Interfaces: Phenomena, Principles and Opportunities in Food Sciences.

The use of soft microgel particles for stabilizing emulsions has captured increasing attention across a wide range of disciplines in the past decades. Being soft, the nanoparticles, which are spherica...

Impact of antioxidant on the stability of β-carotene in model beverage emulsions: Role of emulsion interfacial membrane.

The effect of the thickness and density of droplet interfacial membrane on the chemical stability of β-carotene in emulsions was investigated, and its impact on the effectiveness of oil-soluble antio...

Clinical Trials [2666 Associated Clinical Trials listed on BioPortfolio]

Topical Application of Highly Concentrated Water-in-oil Emulsions

The purpose of this study is to I. determine the effect of repetitive application of newly developed silicone based formulations (placebo water-in-oil emulsions) on transepidermal water lo...

Quantitative MR Methods for Lipid Emulsions

Quantitative MR methods will be validated for the non-invasive imaging of GI processing of lipid emulsions in 18 (12+6) healthy subjects. Validation is performed by a randomized single bli...

Influence of Fish Oil Based Intravenous Fat Emulsions on the Epidermal Barrier Function

The epidermal barrier efficacy is determined by the physicochemical properties of the epidermal lipid matrix, among which ω-6 essential fatty acids (EFAs) play a key role. Inversely, the ...

Fish Oil Brain Delivery Study

Docosahexaenoic acid (DHA) is an essential omega-3 fish oil. DHA is critical to the structure and function of brain cells. DHA fish oil has been shown to be beneficial in cognition in se...

ICULIP, Influence of Two Lipid Emulsions in the Nosocomial Infection in Critical Patients

This study aims to analyse the effect of two total parenteral nutrition diets with lipid emulsions of different compositions on the incidence of nosocomial infection in critical patients. ...

Medical and Biotech [MESH] Definitions

Colloids formed by the combination of two immiscible liquids such as oil and water. Lipid-in-water emulsions are usually liquid, like milk or lotion. Water-in-lipid emulsions tend to be creams. The formation of emulsions may be aided by amphiphatic molecules that surround one component of the system to form MICELLES.

Emulsions of fats or lipids used primarily in parenteral feeding.

Fish of the genera ONCORHYNCHUS and Salmo in the family SALMONIDAE. They are anadromous game fish, frequenting the coastal waters of both the North Atlantic and Pacific. They are known for their gameness as a sport fish and for the quality of their flesh as a table fish. (Webster, 3d ed).

Agents that modify interfacial tension of water; usually substances that have one lipophilic and one hydrophilic group in the molecule; includes soaps, detergents, emulsifiers, dispersing and wetting agents, and several groups of antiseptics.

Food products manufactured from fish (e.g., FISH FLOUR, fish meal).

Quick Search


DeepDyve research library

Relevant Topics

Nutrition
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...

Radiology
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...


Searches Linking to this Article