Plasticizers for Protein‐Based Materials
There are numerous reports on plasticized protein‐based films, including matrices from plants such as soy, pea, sunflower, and wheat proteins and zein [5]. Animal‐based protein matrices include sodium caseinate, keratin, gelatin, collagen, and whey and myofibrillar proteins.
Plasticizers for Protein‐Based Materials | IntechOpen
The most commonly used plasticizer for protein films is glycerol, which is miscible in most proteins, but several other plasticizers have also been studied [ 7 – 12 ]. Examples are polyfunctional alcohols such as sorbitol, propylene glycol, and di‐ and triethanolamine [ 1, 4, 7, 8, 10, 11, 13 – 20 ].
Plasticizers: POLYSORB ID, plant-based solutions
POLYSORB ID - isosorbide diester. POLYSORB ID can be used to make diesters obtained from esterification of isosorbide with plant-based fatty acids. It offers outstanding compatibility and processability with PVC resins. Due to its great efficiency, it can be considered as an alternative of choice to standard petrochemical-based plasticizers.
The effect of plasticizers on the functional properties
Among all biomaterials, protein is the material commonly studied because of its good functional properties as a food packaging material. Proteins confers a broad range of functional properties, especially a high intermolecular binding potential, due to its unique structure (based on 20 different monomers) ( Vieira, Da Silva, Santos, & Beppu
Plasticizers for Protein‐Based Materials - Semantic Scholar
Plasticizers for Protein‐Based Materials N. H. Ullsten, M. Gllstedt, M. Hedenqvist Published 21 September 2016 Materials Science This study presents a practical approach to select plasticizers for proteins. It is a case study on thermoformed wheat gluten, considered here as a model protein, and it involved 30 plasticizer candidates.
- What are natural based plasticizers?
- Nowadays, there is increasing interest in the use of natural-based plasticizers that are characterized by low toxicity and low migration. This group includes epoxidized triglyceride vegetable oils from soybean oil, linseed oil, castor-oil, sunflower oil, and fatty acid esters (FAEs) .
- Are glycerols a good plasticizer for protein based materials?
- Glycerols are often cited as good plasticizers for protein-based materials due to their ability to reduce intermolecular hydrogen bonding while increasing intermolecular spacing. As a small hydrophilic molecule which could be inserted between protein chains, it acts as a plasticizer.
- Are polyols a good plasticizer?
- Polyols are good plasticizers for protein-based materials such as gelatin films. Beneficial compounds of plasticized gelatin film can be used as biodegradable food packaging. Glycerol and sorbitol were found to show considerable plasticizing effect on gelatin-based film.
- Why are plasticizers used in biopolymers?
- Plasticizers are molecules of low volatility which are added to biopolymer materials to allow the modification of the functional properties of films by increasing their extensibility, dispensability, flexibility, elasticity, rigidity and mechanical properties (Hanani et al., 2014a, Hanani et al., 2014b).
- Can bio-based plasticizers replace conventional plastic goods?
- The challenge to implement this new class of natural-based plasticizers matches the increasing interest of material researchers and industries in new bio-based materials, made from renewable resources with the potential, not to totally replace but to reduce the use of conventional plastic goods.
- What is a plasticizer in chemistry?
- The council of the IUPAC (International Union of Pure and Applied Chemistry) defined a plasticizer as “a substance or material incorporated in a material (usually a plastic or elastomer) to increase its flexibility, workability, or distensibility”.
