Multilayer emulsions as a strategy for linseed oil microencapsulation: Effect of pH and alginate concentration

Fioramonti, Silvana Alejandra; Martínez, María Julia; Pilosof, Ana M.R.; Rubiolo, Amelia Catalina; Santiago, Liliana G.

doi:10.1016/j.foodhyd.2014.04.026

Cited by 99 publications

(46 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[24] For the emulsion containing 2.0% (w/w) corn lecithin, the particle size does not change significantly over time as can be observed in the middle zone of the tube where lines are superimposed (Figure 2b, c, e, and f). Moreover, emulsions with 0.5 and 1.0% (w/w) corn lecithin and 0.5-2.0% (w/w) egg yolk lecithin showed a decrease of BS level in the middle zone (10-30 mm) after standing for 30 days.…”

Section: O/w Emulsion Optical Characterizationmentioning

confidence: 72%

See 1 more Smart Citation

Corn Lecithin for Injection from Deoiled Corn Germ: Extraction, Composition, and Emulsifying Properties

Liu

Fan

et al. 2018

Euro J Lipid Sci & Tech

View full text Add to dashboard Cite

Although the lipid fraction of corn germ is rich in lecithin, this material is usually discarded with the residual pulp during industrial corn oil extraction processes. In this study, corn germ, after deoiling by supercritical carbon dioxide (SCCO2), is used as a raw material to prepare corn lecithin for injection. The physicochemical properties, phospholipid composition, fatty acid composition, and emulsifying properties of the corn lecithin for injection is analyzed. The phospholipid and phosphatidylcholine contents in the prepared corn lecithin are 95.96% and 78.37%, respectively. Linoleic acid (45.99%) and oleic acid (22.31%) is the main unsaturated fatty acids, and the ratio of n‐6 polyunsaturated fatty acids (PUFA) to n‐3 PUFA (i.e., n‐6/n‐3) of 6.00 is in accord with World Health Organization recommendations. Emulsions stabilized with the corn lecithin for injection is optically characterized and microscopically inspected, and the droplet size distribution is determined. The results shows that an increase in the corn lecithin concentration lead to a decrease in droplet diameter and an increase in emulsion stability. Furthermore, the corn lecithin for injection creates a more stable emulsion than injection‐grade egg yolk lecithin. Practical Applications: The use of lecithins as emulsifiers for parenteral emulsions was advocated because these materials, typically obtained from egg yolks or soybeans, can be readily metabolized. In this study, we explore the possibility of recovering an important value‐added substance, corn lecithin for injection, which is separated from the corn germ waste generated during corn oil production. The corn lecithin for injection has excellent potential for use as a natural emulsifier in the pharmaceutical, food, and cosmetics industries. In this study, the possibility of preparing high purity corn lecithin for injection from corn germ that is deoiled by supercritical carbon dioxide (SCCO2) is examined. The physicochemical properties, phospholipid composition, fatty acid composition, and emulsifying properties of the corn lecithin for injection is analyzed. Through these efforts, a valuable by‐product of corn oil manufacture is recovered that serves as an attractive, alternative source of injection‐grade lecithin for a wide variety of industrial uses.

show abstract

Section: O/w Emulsion Optical Characterizationmentioning

confidence: 72%

“…[24,25] www.advancedsciencenews.com www.ejlst.com The samples were placed in flat-bottomed cylindrical glass tubes and scanned from bottom to top with a near-infrared light source (λ ¼ 880 nm) and two synchronous detectors.…”

Section: O/w Emulsion Stability Analysismentioning

confidence: 99%

Corn Lecithin for Injection from Deoiled Corn Germ: Extraction, Composition, and Emulsifying Properties

Liu

Fan

et al. 2018

Euro J Lipid Sci & Tech

View full text Add to dashboard Cite

show abstract

“…Lecithin is an anionic emulsifier, composed mainly of phosphatidyl choline, and by phosphatidyl ‐ethanolamine; ‐serine and phosphatidic acid in smaller amount. Most published research papers have showed that colloidal particles can be coated with multiple layers of different materials to form a mechanically resistant interface …”

Section: Resultsmentioning

confidence: 99%

“…The suspension was homogenized by shaking before the observation. Then a drop of the sample was placed between a slide and a cover slide …”

Section: Methodsmentioning

confidence: 99%

Design of a biodegradable carrier for the application of controller bacteria on air–water interfaces

Morelli

Ibañez

Leonardi

et al. 2019

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND The formulation of a biodegradable carrier which effectively concentrates microorganisms on air–water interfaces is proposed. This avoids the dispersion of bacteria into the bulk liquid phase and at the same time prevents their sedimentation. This formulation can be used in biocontrol and bioremediation treatments where the target is at the position of the air–water interface, as in the case of the treatment of rice diseases caused by Sclerotium oryzae and Rhizoctonia complex. The carrier is an oil‐in‐water (O/W) emulsion which contains lecithin and chitosan in both phases at different proportions. In a stable formulation, bacteria that are adsorbed onto the surface of oil droplets are carried with them and flowed upward to the air–water interface, due to buoyancy forces. RESULTS When using the biodegradable carrier, it is possible to recover at least 15‐fold more bacteria from the air–water interface than in the case of using the aqueous formulation. CONCLUSION The emulsion O/W is applied to the surface by dripping, resulting in a homogeneous two‐dimensional film distribution. With this application device, the number of bacteria at the air–water interface is significantly increased. © 2019 Society of Chemical Industry

show abstract

“…They were known as a large number of food products contain small oil droplets dispersed in an aqueous medium, including milk, cream, sauces, beverages and desserts [1][2][3] . The characteristics of the interfacial membranes that surround the oil droplets strongly affected on stability of these products to environmental stresses.…”

Section: Introductionmentioning

confidence: 99%

Influence of Interfacial Engineering on Stability of Emulsions Stabilized with Soy Protein Isolate

Noshad

Mohebbi

Koocheki

et al. 2015

Journal of Dispersion Science and Technology

View full text Add to dashboard Cite

The objectives of this study were to examine the influence interfacial composition on environmental stresses stability of oil in water emulsions. An electrostatic layer-by-layer deposition method was used to create the multilayered interfacial membranes with different compositions: (i) primary emulsion (Soy protein Isolate); (ii) secondary emulsion (Soy protein Isolate -OSA starch); (iii) tertiary emulsion (Soy protein Isolate -OSA starch -chitosan). Fourier transform-infrared (FT-IR) and Scanning electron microscopy (SEM) results confirmed the adsorption of charged polyelectrolyte onto oppositely charge polyelectrolyte-coated oil droplets. The stability of primary, secondary and tertiary emulsions to thermal treatment (30 min at 30-90 °C), pH (3-7) and NaCl (0-500 mM) were determined using ζ-potential, particle diameter and microstructure analysis. Primary emulsions were unstable at pH 4-7, salt concentrations and thermal treatments. Secondary emulsions were stable to creaming and droplet aggregation at pH 3-5, at ≤ 50 mM NaCl and unstable at thermal treatments, whereas tertiary emulsions were stable at all salt concentrations, thermal treatments and at pH 3-6. These results Downloaded by [New York University] at 04:47 22 June 2015 2demonstrate that these polymers can be used to engineer oil in water emulsion systems and improve the emulsion stability to environmental stresses.Graphical Abtract:

show abstract

Multilayer emulsions as a strategy for linseed oil microencapsulation: Effect of pH and alginate concentration

Cited by 99 publications

References 39 publications

Corn Lecithin for Injection from Deoiled Corn Germ: Extraction, Composition, and Emulsifying Properties

Corn Lecithin for Injection from Deoiled Corn Germ: Extraction, Composition, and Emulsifying Properties

Design of a biodegradable carrier for the application of controller bacteria on air–water interfaces

Influence of Interfacial Engineering on Stability of Emulsions Stabilized with Soy Protein Isolate

Contact Info

Product

Resources

About