A rheological approach to 3D printing of plasma protein based doughs

Álvarez‐Castillo, Estefanía; Oliveira, Sónia; Bengoechea, Carlos; Sousa, Isabel; Raymundo, Anabela; Guerrero, Antonio

doi:10.1016/j.jfoodeng.2020.110255

Cited by 54 publications

(44 citation statements)

References 44 publications

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“…As the temperature increased, softening was detected for all samples through a decrease in G′ until a minimum was found, from which G′ significantly increased. This increase in the viscoelastic properties took place at temperatures higher than 60 °C (the molding temperature), as previously reported for similar materials based on PPP and glycerol [ 5 , 6 , 7 , 47 ]. The increase in the viscoelastic properties as the temperature gets higher is typical of the thermosetting potential shown by plastic materials molded in relatively mild conditions, under which plasticized polymers still display thermoplastic behavior.…”

Section: Resultssupporting

confidence: 81%

Strengthening of Porcine Plasma Protein Superabsorbent Materials through a Solubilization-Freeze-Drying Process

2021

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The replacement of common acrylic derivatives by biodegradable materials in the formulation of superabsorbent materials would lessen the associated environmental impact. Moreover, the use of by-products or biowastes from the food industry that are usually discarded would promote a desired circular economy. The present study deals with the development of superabsorbent materials based on a by-product from the meat industry, namely plasma protein, focusing on the effects of a freeze-drying stage before blending with glycerol and eventual injection molding. More specifically, this freeze-drying stage is carried out either directly on the protein flour or after its solubilization in deionized water (10% w/w). Superabsorbent materials obtained after this solubilization-freeze-drying process display higher Young’s modulus and tensile strength values, without affecting their water uptake capacity. As greater water uptake is commonly related to poorer mechanical properties, the proposed solubilization-freeze-drying process is a useful strategy for producing strengthened hydrophilic materials.

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Section: Resultssupporting

confidence: 81%

Strengthening of Porcine Plasma Protein Superabsorbent Materials through a Solubilization-Freeze-Drying Process

2021

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“…According to the literature, empirically, a storage modulus above 10 3 Pa is necessary to maintain a stable 3D structure of multiple layers [45]; with the exception of WBPUU27, all the systems presented a storage modulus above this value. Additionally, according to Álvarez-Castillo et al, inks presenting a complex modulus below 10 3 Pa were too weak to keep the shape, whereas values over 10 5 Pa were too stiff to be properly extruded [46]. In this case, the WBPUU27 was once again the only system to present values under this range.…”

Section: Resultsmentioning

confidence: 97%

Design of a Waterborne Polyurethane–Urea Ink for Direct Ink Writing 3D Printing

Vadillo

Larraza²,

Calvo‐Correas³

et al. 2021

Materials

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In this work, polycaprolactone–polyethylene glycol (PCL–PEG) based waterborne polyurethane–urea (WBPUU) inks have been developed for an extrusion-based 3D printing technology. The WBPUU, synthesized from an optimized ratio of hydrophobic polycaprolactone diol and hydrophilic polyethylene glycol (0.2:0.8) in the soft segment, is able to form a physical gel at low solid contents. WBPUU inks with different solid contents have been synthesized. The rheology of the prepared systems was studied and the WBPUUs were subsequently used in the printing of different pieces to demonstrate the relationship between their rheological properties and their printing viability, establishing an optimal window of compositions for the developed WBPUU based inks. The results showed that the increase in solid content results in more structured inks, presenting a higher storage modulus as well as lower tan δ values, allowing for the improvement of the ink’s shape fidelity. However, an increase in solid content also leads to an increase in the yield point and viscosity, leading to printability limitations. From among all printable systems, the WBPUU with a solid content of 32 wt% is proposed to be the more suitable ink for a successful printing performance, presenting both adequate printability and good shape fidelity, which leads to the realization of a recognizable and accurate 3D construct and an understanding of its relationship with rheological parameters.

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“…This strategy has been developed fundamentally for polymeric materials, and it has been used in different fields such as biomedicine [ 191 , 192 ], electronic [ 193 , 194 ], or food [ 195 , 196 ], among others that typically involve small-scale production and high-value-added products. Although this manufacturing strategy has been scarcely exploited using protein-based products, some studies have been developed using pea [ 197 ], plasma [ 198 ], soy [ 199 ], and milk proteins [ 200 , 201 ]. All these studies highlighted the importance that rheology exerts on the 3D printing process.…”

Section: Processing Of Bio-based Materialsmentioning

confidence: 99%

“…The results of these tests could give relevant information that can be related to processing parameters of the materials [ 97 , 274 ] or even predict some correlations with other properties, such as printability [ 198 ] or biodegradability [ 275 ]. This rheological characterization has been largely performed for different protein-based bioplastics, such as soy [ 58 ], plasma [ 95 , 198 ], zein [ 276 ], or pea [ 121 , 159 ], among others [ 277 , 278 ].…”

Section: Characterization Of Protein-based Materialsmentioning

confidence: 99%

“…Apart from soy protein, other proteins co-products (i.e., canola and rapeseed protein concentrates) were also used for absorbent materials [ 76 , 113 , 363 ]. Additionally, plasma protein, a hydrophilic co-product from the meat processing industry, has proven to be useful in the fabrication of absorbent plastic films [ 91 , 364 , 365 , 366 ] and superabsorbent materials obtained by injection molding [ 96 ] and even 3D printing [ 198 ]. Also from the meat industry, gelatin showed suitable application as SAMs [ 367 ].…”

Section: Applications Of Protein-based Bioplasticsmentioning

confidence: 99%

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Proteins from Agri-Food Industrial Biowastes or Co-Products and Their Applications as Green Materials

Álvarez‐Castillo¹,

Félix²,

Bengoechea³

et al. 2021

Foods

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A great amount of biowastes, comprising byproducts and biomass wastes, is originated yearly from the agri-food industry. These biowastes are commonly rich in proteins and polysaccharides and are mainly discarded or used for animal feeding. As regulations aim to shift from a fossil-based to a bio-based circular economy model, biowastes are also being employed for producing bio-based materials. This may involve their use in high-value applications and therefore a remarkable revalorization of those resources. The present review summarizes the main sources of protein from biowastes and co-products of the agri-food industry (i.e., wheat gluten, potato, zein, soy, rapeseed, sunflower, protein, casein, whey, blood, gelatin, collagen, keratin, and algae protein concentrates), assessing the bioplastic application (i.e., food packaging and coating, controlled release of active agents, absorbent and superabsorbent materials, agriculture, and scaffolds) for which they have been more extensively produced. The most common wet and dry processes to produce protein-based materials are also described (i.e., compression molding, injection molding, extrusion, 3D-printing, casting, and electrospinning), as well as the main characterization techniques (i.e., mechanical and rheological properties, tensile strength tests, rheological tests, thermal characterization, and optical properties). In this sense, the strategy of producing materials from biowastes to be used in agricultural applications, which converge with the zero-waste approach, seems to be remarkably attractive from a sustainability prospect (including environmental, economic, and social angles). This approach allows envisioning a reduction of some of the impacts along the product life cycle, contributing to tackling the transition toward a circular economy.

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A rheological approach to 3D printing of plasma protein based doughs

Cited by 54 publications

References 44 publications

Strengthening of Porcine Plasma Protein Superabsorbent Materials through a Solubilization-Freeze-Drying Process

Strengthening of Porcine Plasma Protein Superabsorbent Materials through a Solubilization-Freeze-Drying Process

Design of a Waterborne Polyurethane–Urea Ink for Direct Ink Writing 3D Printing

Proteins from Agri-Food Industrial Biowastes or Co-Products and Their Applications as Green Materials

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