Production, Chemistry and Properties of Biopolymers in Food Science

Puthussery, Hima; Prasad, Rishika; Gorazda, Katarzyna; Roy, Ipsita

doi:10.1002/9781119109785.ch4

Cited by 5 publications

(4 citation statements)

References 42 publications

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“…In addition such materials must be completely innocuous. Therefore, synthetic polymers have been the worldwide prime packaging material since they offer versatile solutions for several needs (Puthussery, Prasad, Gorazda & Roy, 2015). Nonetheless, environmental issues raised due to conventional packaging polymers have triggered the study of new biobased materials for food packaging in order to replace their non-degradable counterparts (Azeredo, 2009).…”

Section: Films Properties In Relation To Potential Food Packaging Appmentioning

confidence: 99%

Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films

López

Versino

Villar

et al. 2015

Carbohydrate Polymers

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Section: Films Properties In Relation To Potential Food Packaging Appmentioning

confidence: 99%

Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films

López

Versino

Villar

et al. 2015

Carbohydrate Polymers

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“…Poly (lactic-acid) (PLA) is 100% biomass polyester polymerized by lactic-acid mainly derived from corn starch and it is currently one of the most extensively-used bioplastics with a volume of 180,000 ton/year in 2015 9 . It is commonly used in biodegradable packaging industry 10 .…”

mentioning

confidence: 99%

All Biomass and UV Protective Composite Composed of Compatibilized Lignin and Poly (Lactic-acid)

Kim

Suhr

Seo

et al. 2017

Sci Rep

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Utilization of carbon-neutral biomass became increasingly important due to a desperate need for carbon reduction in the issue of global warming in light of replacing petroleum-based materials. We used lignin, which was an abundant, low cost, and non-food based biomass, for the development of all biomass-based films and composites through reactive compatibilization with poly (lactic-acid) (PLA). Using a facile and practical route, the hydrophilic hydroxyl groups of lignin were acetylated to impose the compatibility with PLA. The solubility parameter of the pristine lignin at 26.3 (J/cm3)0.5 was altered to 20.9 (J/cm3)0.5 by acetylation allowing the good compatibility with PLA at 20.2 (J/cm3)0.5. The improved compatibility of lignin and PLA provided substantially decreased lignin domain size in composites (12.7 μm), which subsequently gave transparent and UV-protection films (visual transmittance at 76% and UV protection factor over 40). The tensile strength and elongation of the developed composite films were increased by 22% and 76%, respectively, and the biobased carbon content was confirmed as 96 ± 3%. The developed PLA/lignin composites provided 100% all-biomass contents and balanced optical and mechanical properties that could broaden its eco-friendly applications in various industries.

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“…Thus, the semi crystalline structure of starch is transformed into a homogeneous amorphous matrix to improve processing ability (Bertolini 2010). Applications of mechanical or thermal energy are required together with the presence of water for starch destructuring and, therefore, the production of thermoplastic starch (TPS) (Bertolini 2010;Thiré 2010;Puthussery et al 2015;Gutiérrez et al 2018a;Gutiérrez and Alvarez 2018). In addition to water, polyols such as glycerol and sorbitol provide the plasticizing effect, and increase flexibility and decrease the brittleness in films (Thiré 2010;Jiménez et al 2012;Medina Jaramillo et al 2016).…”

Section: Polysaccharide Biomassmentioning

confidence: 99%

“…In addition to water, polyols such as glycerol and sorbitol provide the plasticizing effect, and increase flexibility and decrease the brittleness in films (Thiré 2010;Jiménez et al 2012;Medina Jaramillo et al 2016). Water, glycerol, sorbitol, propylene glycol, polyethylene glycol and other polyols, oligosaccharides, fatty acids and lipids are used as plasticizers for the formation of TPS (Bertolini 2010;Campos et al 2011;Puthussery et al 2015;Jawaid and Swain 2017). Plasticizers improve the oxygen permeability of extruded TPS.…”

Section: Polysaccharide Biomassmentioning

confidence: 99%

Functional Biobased Composite Polymers for Food Packaging Applications

Çakmak

Söğüt

2020

Reactive and Functional Polymers Volume One

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Biobased polymers are of great interest due to the release of tension on non-renewable petroleum-based polymers for environmental concerns. However, biobased polymers usually have poor mechanical and barrier properties when used as the main component of coatings and films, but they can be improved by adding nanoscale reinforcing agents (nanoparticles - NPs or fillers), thus forming nanocomposites. The nano-sized components have a larger surface area that favors the filler-matrix interactions and the resulting material yield. For example, natural fibers from renewable plants could be used to improve the mechanical strength of the biobased composites. In addition to the mechanical properties, the optical, thermal and barrier properties are mainly effective on the selection of type or the ratio of biobased components. Biobased nanocomposites are one of the best alternatives to conventional polymer composites due to their low density, transparency, better surface properties and biodegradability, even with low filler contents. In addition, these biomaterials are also incorporated into composite films as nano-sized bio-fillers for the reinforcement or as carriers of some bioactive compounds. Therefore, nanostructures may provide antimicrobial properties, oxygen scavenging ability, enzyme immobilization or act as a temperature or oxygen sensor. The promising result of biobased functional polymer nanocomposites is shelf life extension of foods, and continuous improvements will face the future challenges. This chapter will focus on biobased materials used in nanocomposite polymers with their functional properties for food packaging applications.

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Production, Chemistry and Properties of Biopolymers in Food Science

Cited by 5 publications

References 42 publications

Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films

Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films

All Biomass and UV Protective Composite Composed of Compatibilized Lignin and Poly (Lactic-acid)

Functional Biobased Composite Polymers for Food Packaging Applications

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