Novel Bilayer Emulsions Costabilized by Zein Colloidal Particles and Propylene Glycol Alginate. 2. Influence of Environmental Stresses on Stability and Rheological Properties.

Novel bilayer emulsions co-stabilized by zein colloidal particles (ZCPs) and propylene glycol alginate (PGA) were designed to overcome some limitations of conventional emulsions or Pickering emulsions. The bilayer emulsions of various concentrations of PGA (0.01-1.50%, w/v) and different incorporation sequences of ZCPs and PGA (ZCPs/PGA and PGA/ZCPs) were fabricated using the layer by layer (LBL) electrostatic deposition technique. Influence of environmental stresses (pH 2.5-8.5; temperature 60-80 °C ; ionic strength 0-100 mM NaCl) was focused on the stability and rheological properties of the novel bilayer emulsions. In comparison to the Pickering emulsion stabilized by ZCPs alone, bilayer emulsions exhibited improved stability and unique rheological characteristics under environmental stresses. The microstructure of well-defined spheres existing a branchlike network was observed in bilayer emulsions by TEM. A comprehensive evaluation was made of the physical characteristics and stimuli-responsive behavior of bilayer emulsions. The result provided meaningful information for understanding the changing mechanism of rheology of bilayer emulsions under environmental stresses.

[1]  Lei Dai,et al.  Novel Bilayer Emulsions Costabilized by Zein Colloidal Particles and Propylene Glycol Alginate, Part 1: Fabrication and Characterization. , 2018, Journal of agricultural and food chemistry.

[2]  Lei Dai,et al.  Structure, physicochemical stability and in vitro simulated gastrointestinal digestion properties of β-carotene loaded zein-propylene glycol alginate composite nanoparticles fabricated by emulsification-evaporation method , 2018, Food Hydrocolloids.

[3]  P. Sarkar,et al.  Multiple layers and conjugate materials for food emulsion stabilization , 2018, Critical reviews in food science and nutrition.

[4]  Lei Dai,et al.  Characterization of chitosan-ferulic acid conjugates and their application in the design of β-carotene bilayer emulsions with propylene glycol alginate , 2017, Food Hydrocolloids.

[5]  Lei Dai,et al.  Characterization of Pickering emulsion gels stabilized by zein/gum arabic complex colloidal nanoparticles , 2018 .

[6]  K. Goh,et al.  Formation and stability of single and bi-layer nanoemulsions using WPI and lactoferrin as interfacial coatings under different environmental conditions , 2017 .

[7]  Hélder D. Silva,et al.  Formation, stability and antioxidant activity of food-grade multilayer emulsions containing resveratrol , 2017 .

[8]  K. Schroën,et al.  Interfacial behaviour of biopolymer multilayers: Influence of in vitro digestive conditions. , 2017, Colloids and surfaces. B, Biointerfaces.

[9]  D. Mcclements,et al.  Recent Advances in the Utilization of Natural Emulsifiers to Form and Stabilize Emulsions. , 2017, Annual review of food science and technology.

[10]  E. Chan,et al.  Effects of environmental factors on the physical stability of pickering-emulsions stabilized by chitosan particles , 2016 .

[11]  Yunqi Li,et al.  Recent advances on food-grade particles stabilized Pickering emulsions: Fabrication, characterization and research trends , 2016 .

[12]  D. Mcclements,et al.  Utilization of interfacial engineering to improve physicochemical stability of β-carotene emulsions: Multilayer coatings formed using protein and protein-polyphenol conjugates. , 2016, Food chemistry.

[13]  K. Draget,et al.  Propylene glycol alginate (PGA) gelled foams: A systematic study of surface activity and gelling properties as a function of degree of esterification , 2016 .

[14]  Yanxiang Gao,et al.  Influence of polysaccharides on the physicochemical properties of lactoferrin–polyphenol conjugates coated β-carotene emulsions , 2016 .

[15]  Yanxiang Gao,et al.  Physicochemical properties of β-carotene bilayer emulsions coated by milk proteins and chitosan–EGCG conjugates , 2016 .

[16]  David J. French,et al.  Making and breaking bridges in a Pickering emulsion. , 2015, Journal of colloid and interface science.

[17]  Fang Yuan,et al.  Influence of soybean soluble polysaccharides and beet pectin on the physicochemical properties of lactoferrin-coated orange oil emulsion , 2015 .

[18]  A. Pilosof,et al.  Multilayer emulsions as a strategy for linseed oil microencapsulation: Effect of pH and alginate concentration , 2015 .

[19]  Ashok R. Patel,et al.  Zein as a source of functional colloidal nano- and microstructures , 2014 .

[20]  K. Draget,et al.  Macro- vs. micromolecular stabilisation of W/O/W-emulsions , 2014 .

[21]  M. Nickerson,et al.  Food proteins: a review on their emulsifying properties using a structure-function approach. , 2013, Food chemistry.

[22]  F. Agnely,et al.  Proteins, polysaccharides, and their complexes used as stabilizers for emulsions: alternatives to synthetic surfactants in the pharmaceutical field? , 2012, International journal of pharmaceutics.

[23]  E. Dickinson.  Emulsion gels: The structuring of soft solids with protein-stabilized oil droplets , 2012 .

[24]  Aileen Lozsán.  Salt-induced fast aggregation of nano-emulsions: structural and kinetic scaling , 2012, Colloid and Polymer Science.

[25]  P. Silcock,et al.  Multilayer emulsions as delivery systems for controlled release of volatile compounds using pH and salt triggers , 2012 .

[26]  D. Mcclements,et al.  Controlling the functional performance of emulsion-based delivery systems using multi-component biopolymer coatings. , 2010, European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V.

[27]  Duoxia Xu,et al.  Investigation into the physicochemical stability and rheological properties of beta-carotene emulsion stabilized by soybean soluble polysaccharides and chitosan. , 2010, Journal of agricultural and food chemistry.

[28]  Eric Dickinson,et al.  Food emulsions and foams: Stabilization by particles , 2010 .

[29]  J. Vincent.  The Composite Structure of Biological Tissue Used for Food , 2008 .

[30]  S. Gunasekaran,et al.  Effect of xanthan gum on physicochemical properties of whey protein isolate stabilized oil-in-water emulsions , 2007 .

[31]  D. Mcclements,et al.  Influence of Environmental Stresses on O/W Emulsions Stabilized by β-Lactoglobulin–Pectin and β-Lactoglobulin–Pectin–Chitosan Membranes Produced by the Electrostatic Layer-by-Layer Deposition Technique , 2006 .

[32]  D. Mcclements,et al.  Influence of environmental stresses on stability of oil-in-water emulsions containing droplets stabilized by β-lactoglobulin–ι-carrageenan membranes , 2005 .

[33]  D. Mcclements,et al.  Influence of Environmental Stresses on Stability of O/W Emulsions Containing Droplets Stabilized by Multilayered Membranes Produced by a Layer-by-Layer Electrostatic Deposition Technique , 2005 .

[34]  D. Mcclements,et al.  Factors Influencing the Production of O/W Emulsions Stabilized by β-Lactoglobulin–Pectin Membranes , 2004 .

[35]  D. Mcclements,et al.  Influence of ι-Carrageenan on Droplet Flocculation of β-Lactoglobulin-Stabilized Oil-in-Water Emulsions during Thermal Processing , 2004 .

[36]  V. Schmitt,et al.  Materials based on solid-stabilized emulsions. , 2004, Journal of colloid and interface science.

[37]  E. Goddard.  Polymer/Surfactant Interaction: Interfacial Aspects , 2002 .

[38]  Kim Hj,et al.  Impact of protein surface denaturation on droplet flocculation in hexadecane oil-in-water emulsions stabilized by β-lactoglobulin , 2002 .

[39]  Peter A. Williams.  Food Emulsions: Principles, Practice, and Techniques , 2001 .

[40]  D. E. Tambe,et al.  The effect of colloidal particles on fluid-fluid interfacial properties and emulsion stability , 1994 .

[41]  J. Ralston,et al.  Contact angles on charged substrates , 1989 .