Bioplastics based on wheat gluten processed by extrusion

Abstract Recently, bioplastic have generated an increasing interest as an alternative to conventional plastics. For this reason, their manufacture using the traditional techniques used for the production of plastics, such as extrusion, would help transferring bioplastics production to an industrial scale. In this way, the preparation of wheat gluten bioplastics by extrusion was the main objective of this research, modifying their structure by varying the pH value or by incorporating additives (glyoxal or xanthan gum). These bioplastics were characterized by the measurement of their mechanical properties and their water uptake capacity, proving that the modification of bioplastics cause variations in their properties. Thus, extrusion resulted in a greater gluten-plasticizer compatibility compared to compression, as denoted the temperature ramp tests, especially in the presence of additives (ie. Xanthan gum, glyoxal). Moreover, tensile strength was enhanced at pH 9, probably due to bonding promotion at alkaline conditions. These results demonstrate the great potential of these materials for the replacement of conventional plastics.

[1]  C. Gallegos,et al.  Rheological behaviour and physical properties of controlled-release gluten-based bioplastics. , 2009, Bioresource technology.

[2]  J. Krochta,et al.  Thermoplastic processing of proteins for film formation--a review. , 2008, Journal of food science.

[3]  Tomy J. Gutiérrez,et al.  Characterization of biodegradable/non-compostable films made from cellulose acetate/corn starch blends processed under reactive extrusion conditions , 2019, Food Hydrocolloids.

[4]  J. Gerrard,et al.  Protein cross-linking in food: mechanisms, consequences, applications , 2002 .

[5]  C. Gallegos,et al.  Rheology and processing of gluten based bioplastics , 2005 .

[6]  Lisa E. van den Berg,et al.  Extrusion Processing and Properties of Protein-Based Thermoplastics , 2010 .

[7]  R. Parnas,et al.  Manufacture and Biodegradation of Wheat Gluten/Basalt Composite Material , 2006 .

[8]  N. Parris,et al.  Composition factors affecting the water vapor permeability and tensile properties of hydrophilic zein films , 1995 .

[9]  K. Turhan,et al.  Barrier and mechanical properties of methylcellulose–whey protein films , 2005 .

[10]  Valentina Siracusa,et al.  Biodegradable polymers for food packaging: a review , 2008 .

[11]  정동효.  Xanthan gum의 생산과 응용 , 1978 .

[12]  I. Martínez,et al.  Influence of tragacanth gum in egg white based bioplastics: Thermomechanical and water uptake properties. , 2016, Carbohydrate polymers.

[13]  S. Guilbert,et al.  Thermoplastic processing of protein-based bioplastics: Chemical engineering aspects of mixing, extrusion and hot molding , 2003 .

[14]  J. Delcour,et al.  Molecular basis of processing wheat gluten toward biobased materials. , 2010, Biomacromolecules.

[15]  Margaret J. Sobkowicz,et al.  Effects of chain-extending stabilizer on bioplastic poly(lactic acid)/polyamide blends compatibilized by reactive extrusion , 2018, Polymer Degradation and Stability.

[16]  S. Guilbert,et al.  Heat and shear mediated polymerisation of plasticized wheat gluten protein upon mixing , 2003 .

[17]  M. Hedenqvist,et al.  Properties of Wheat-Gluten/Montmorillonite Nanocomposite Films Obtained by a Solvent-Free Extrusion Process , 2012, Journal of Polymers and the Environment.

[18]  Yihu Song,et al.  Morphologies and properties of thermo-molded biodegradable plastics based on glycerol-plasticized wheat gluten , 2007 .

[19]  A. Romero,et al.  Thermo-mechanical and hydrophilic properties of polysaccharide/gluten-based bioplastics. , 2014, Carbohydrate polymers.

[20]  Shiying Xu,et al.  Whey protein isolate-based edible films as affected by protein concentration, glycerol ratio and pullulan addition in film formation , 2007 .

[21]  A. Romero,et al.  Wheat gluten-based materials plasticised with glycerol and water by thermoplastic mixing and thermomoulding. , 2011, Journal of the science of food and agriculture.

[22]  Yihu Song,et al.  Thermo-molded wheat gluten plastics plasticized with glycerol: Effect of molding temperature , 2008 .

[23]  S. B. Sheavly,et al.  Marine Debris & Plastics: Environmental Concerns, Sources, Impacts and Solutions , 2007 .

[24]  E. Vega,et al.  Influence of the Ionic Strength in the Intrinsic Viscosity of Xanthan Gum. An Experimental Review , 2015 .

[25]  P. Menut,et al.  Extrusion Processing of Wheat Gluten Bioplastic: Effect of the Addition of Kraft Lignin , 2013, Journal of Polymers and the Environment.

[26]  Amit K. Ghosh,et al.  Polysaccharide-Protein Interactions and Their Relevance in Food Colloids , 2012 .

[27]  S. Ring,et al.  Apple pectin complexes with whey protein isolate , 2000 .

[28]  H. Stone,et al.  Salt type and concentration affect the viscoelasticity of polyelectrolyte solutions , 2018 .

[29]  S. Riyajan,et al.  Preparation and properties of wheat gluten based bioplastics with fish scale , 2017 .

[30]  Pedro Partal,et al.  Protein-based bioplastics: effect of thermo-mechanical processing , 2007 .

[31]  S. Turgeon,et al.  Protein–polysaccharide complexes and coacervates , 2007 .

[32]  R. F. Testin,et al.  Water vapor permeability of wheat gluten and soy protein isolate films , 1994 .

[33]  N. Patni,et al.  An overview on the role of wheat gluten as a viable substitute for biodegradable plastics , 2014 .

[34]  S. Riyajan,et al.  Effect of Shrimp Shell Waste on the Properties of Wheat Gluten Based-Bioplastics , 2018, Journal of Polymers and the Environment.

[35]  S. Turgeon,et al.  Protein-polysaccharide interactions: phase-ordering kinetics, thermodynamic and structural aspects , 2003 .

[36]  Sylvie L. Turgeon,et al.  Improvement and modification of whey protein gel texture using polysaccharides , 2001 .

[37]  P. Chalier,et al.  Functional properties of wheat gluten/montmorillonite nanocomposite films processed by casting , 2007 .

[38]  J. Delcour,et al.  The effect of cross-linking additives on the structure and properties of glassy wheat gluten material , 2016 .

[39]  M. Solomon,et al.  Two‐step continuous production of monodisperse colloidal ellipsoids at rates of one gram per day , 2018 .

[40]  A. Romero,et al.  Effect of aldehydes on thermomechanical properties of gluten-based bioplastics , 2014 .

[41]  J. Hardy,et al.  Structure and technofunctional properties of protein-polysaccharide complexes: a review. , 1998, Critical reviews in food science and nutrition.

[42]  Sung-Woo Cho,et al.  Properties of extruded vital wheat gluten sheets with sodium hydroxide and salicylic acid. , 2009, Biomacromolecules.

[43]  J. Gómez-Estaca,et al.  Effect of thermo-pressing temperature on the functional properties of bioplastics made from a renewable wheat gliadin resin , 2014 .

[44]  Mrinal Bhattacharya,et al.  Processing of biodegradable blends of wheat gluten and modified polycaprolactone , 1998 .

[45]  J. Derraik.  The pollution of the marine environment by plastic debris: a review. , 2002, Marine pollution bulletin.

[46]  J. Dealy,et al.  Rheometers for Molten Plastics , 1982 .

[47]  J. Sarasua,et al.  Aging properties of films of plasticized vital wheat gluten cast from acidic and basic solutions. , 2006, Biomacromolecules.

[48]  E. Cortés-Triviño,et al.  Wheat gluten/montmorillonite biocomposites: Effect of pH on the mechanical properties and clay dispersion , 2018 .

[49]  J. Sassi,et al.  Microalgae starch-based bioplastics: Screening of ten strains and plasticization of unfractionated microalgae by extrusion. , 2019, Carbohydrate polymers.

[50]  M. Lacroix,et al.  Modification of the properties of milk protein films by gamma radiation and polysaccharide addition , 2006 .

[51]  J. Kerry,et al.  Combined Effects of Proteins and Polysaccharides on Physical Properties of Whey Protein Concentrate‐based Edible Films , 2006 .

[52]  Nathalie Gontard,et al.  Wheat gluten-coated papers for bio-based food packaging: Structure, surface and transfer properties , 2010 .

[53]  M. Ottenhof,et al.  The effect of gluten on the retrogradation of wheat starch , 2004 .