Development of bioplastics based on agricultural side‐stream products: Film extrusion of <scp>C</scp>rambe abyssinica/wheat gluten blends for packaging purposes

Rasel, Hannah; Johansson, Thérese; Gällstedt, Mikael; Newson, William R.; Johansson, Eva; Hedenqvist, Mikael S.

doi:10.1002/app.42442

Cited by 13 publications

(16 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the urea content was decreased from 15 to 10 wt% 12 , the cohesion of the dough decreased substantially, resulting in a powder-like material; no continuous film could be extruded 12 .…”

Section: Representative Resultsmentioning

confidence: 99%

“…The feeding rate could also be increased 12 . The drawback was that the films were only partially continuous, and film breakages appeared a few meters apart.…”

Section: Representative Resultsmentioning

confidence: 99%

“…The drawback was that the films were only partially continuous, and film breakages appeared a few meters apart. However, when increasing the die temperature to approximately 130 °C, continuous films could be prepared, although with some discolorations 12 .…”

Section: Representative Resultsmentioning

confidence: 99%

“…Depending on how the extrudates were made and what they contained, the stiffness ranged from 4.9-5.6 MPa and the strength from 0.3-0.7 MPa, whereas the extensibility ranged from 7 to 16% 12 . The corresponding values for the extrudates after compression molding were 6.4-15.0 MPa, 0.3-1.1 MPa, and 8-19% 5 .…”

Section: Representative Resultsmentioning

confidence: 99%

“…To improve the toughness/extensibility of the protein material, a plasticizer is commonly used as an additive as well. In this study, glycerol is used, which is a side product of the plant oil industry (e.g., rape seed methyl ester fuels) and is readily available at a low cost This study focuses on the characterization of the mechanical and barrier properties of a new bio-based material produced from crambe meal processed with different additives and at different conditions 12 . The full details of the mechanical and oxygen barrier features are found in Rasel et al…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Film Extrusion of Crambe abyssinica/Wheat Gluten Blends

Gällstedt¹,

Pettersson²,

Johansson³

et al. 2017

JoVE

Self Cite

View full text Add to dashboard Cite

Crambe abyssinica is a plant with potential for use in industrial (non-food) plant oil production. The side stream from this oil production is a high-protein crambe meal that has limited value, as it is not fit for food or feed use. However, it contains proteins that could potentially make it a suitable raw material for higher-value products. The purpose of this study was to find methods of making this side stream into extruded films, showing that products with a higher value can be produced. The study mainly considered the development of material compositions and methods of preparing and extruding the material. Wheat gluten was added as a supportive protein matrix material, together with glycerol as a plasticizer and urea as a denaturant. The extrudate was evaluated with respect to mechanical (tensile testing) and oxygen barrier properties, and the extrudate structure was revealed visually and by scanning electron microscopy. A denser, more homogeneous material had a lower oxygen transmission rate, higher strength, and higher extensibility. The most homogeneous films were made at an extruder die temperature of 125-130 °C. It is shown here that a film can be extruded with promising mechanical and oxygen barrier properties, the latter especially after a final compression molding step.

show abstract

Section: Representative Resultsmentioning

confidence: 99%

“…The feeding rate could also be increased 12 . The drawback was that the films were only partially continuous, and film breakages appeared a few meters apart.…”

Section: Representative Resultsmentioning

confidence: 99%

Section: Representative Resultsmentioning

confidence: 99%

Section: Representative Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Film Extrusion of Crambe abyssinica/Wheat Gluten Blends

Gällstedt¹,

Pettersson²,

Johansson³

et al. 2017

JoVE

Self Cite

View full text Add to dashboard Cite

show abstract

High Capacity Functionalized Protein Superabsorbents from an Agricultural Co‐Product: A Cradle‐to‐Cradle Approach

Capezza

Cui

Numata

et al. 2020

Advanced Sustainable Systems

Self Cite

View full text Add to dashboard Cite

Synthesis of superabsorbent particles from nontoxic wheat gluten (WG) protein, as an industrial co‐product, is presented. A natural molecular cross‐linker named genipin (a hydrogenated glycoside) is used together with a dianhydride (ethylenediaminetetraacetic EDTAD), to enable the preparation of a material with a network structure capable of swelling up to ≈4000% in water and ≈600% in saline solution. This represents an increase in swelling by over 10 times compared to the already highly absorbing gluten reference material. The carboxylation (using EDTAD) and the cross‐linking of the protein result in a hydrogel with liquid retention capacity as high as 80% of the absorbed water remaining in the WG network on extensive centrifugation, which is higher than that of commercial fossil‐based superabsorbents. The results also show that more polar forms of the reacted genipin are more effectively grafted onto the protein, contributing to the swelling and liquid retention. Microscopy of the materials reveals extensive nanoporosity (300 nm), contributing to rapid capillarity‐driven absorption. The use of proteins from agricultural industries for the fabrication of sustainable protein superabsorbents is herein described as an emerging avenue for the development of the next generation daily‐care products with a minimal environmental impact.

show abstract

Preparation and Properties of Solution Cast Films From Pennycress Protein Isolate

Selling

Hojilla-Evangelista

Hay

et al. 2018

J Americ Oil Chem Soc

View full text Add to dashboard Cite

This research evaluated a value-added use of pennycress protein by producing films and determining their properties. Pennycress (Thlaspi arvense L.) grows over the winter months, and is harvested in the spring. Pennycress seeds have high oil content and are a good candidate for biodiesel production. In order to extract the most value from pennycress, all parts of the seed must be utilized. An improved pilot-plant method for extracting protein from pennycress was developed providing a pennycress protein isolate (PPI) in high yield and purity (92% crude protein). Formic acid was found to be a good solvent for PPI and was used to produce transparent colored films. Glycerol (GLY) was found to be a good plasticizer for PPI, and films having between 10 and 30% GLY were produced. Higher GLY content resulted in films with an increase in elongation (up to 194%) but reduced tensile strength (TS) (from 21.8 to 3.2 MPa). With increasing relative humidity (RH), TS decreased and elongation increased. The glass transition temperature and heat deflection temperature for select PPI films were between 75-115 and 93-117 C, respectively. The films had relatively low water vapor and oxygen permeability. The overall balance of properties suggests that PPI films may have value in film applications, especially in composites where exposure to moisture may be minimized.

show abstract

Development of bioplastics based on agricultural side‐stream products: Film extrusion of Crambe abyssinica/wheat gluten blends for packaging purposes

Cited by 13 publications

References 22 publications

Film Extrusion of <em>Crambe abyssinica</em>/Wheat Gluten Blends

Film Extrusion of <em>Crambe abyssinica</em>/Wheat Gluten Blends

High Capacity Functionalized Protein Superabsorbents from an Agricultural Co‐Product: A Cradle‐to‐Cradle Approach

Preparation and Properties of Solution Cast Films From Pennycress Protein Isolate

Contact Info

Product

Resources

About