A new procedure to prepare transparent, colourless and low-water-soluble edible films using blood plasma from slaughterhouses

Álvarez, Susana Álvarez; Weng, Shihan; Álvarez, Carlos; Marcet, Ismael; Rendueles, Manuel; Dı́az, Mario

doi:10.1016/j.fpsl.2021.100639

Cited by 9 publications

(14 citation statements)

References 8 publications

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“…The plasma albumin films treated with ethanol exhibited a low solubility in buffer solutions at different pH values and microstructure analysis showed a compact and homogenous matrix. Ethanol treatment of blood serum proteins led to the development of films with more transparency and higher mechanical properties [ 24 ].…”

Section: Potential Underutilized Animal Origin Proteins For Film Developmentmentioning

confidence: 99%

“…Proteins possess good film-forming properties mainly due to their ability to form an amorphous three-dimensional framework primarily stabilized by non-covalent interactions. The most common proteins used for films production are collagen, gelatin, caseins, whey proteins, myofibrillar proteins, quinoa protein, soy protein, and keratin [ 24 ]. Physicochemical properties of protein films are influenced by several factors including protein source (plant or animal based) and purity, amino acid composition, denaturation degree, pH, and the presence of additives.…”

Section: Introductionmentioning

confidence: 99%

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Biodegradable Packaging Materials from Animal Processing Co-Products and Wastes: An Overview

2021

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Biodegradable polymers are non-toxic, environmentally friendly biopolymers with considerable mechanical and barrier properties that can be degraded in industrial or home composting conditions. These biopolymers can be generated from sustainable natural sources or from the agricultural and animal processing co-products and wastes. Animals processing co-products are low value, underutilized, non-meat components that are generally generated from meat processing or slaughterhouse such as hide, blood, some offal etc. These are often converted into low-value products such as animal feed or in some cases disposed of as waste. Collagen, gelatin, keratin, myofibrillar proteins, and chitosan are the major value-added biopolymers obtained from the processing of animal’s products. While these have many applications in food and pharmaceutical industries, a significant amount is underutilized and therefore hold potential for use in the generation of bioplastics. This review summarizes the research progress on the utilization of meat processing co-products to fabricate biodegradable polymers with the main focus on food industry applications. In addition, the factors affecting the application of biodegradable polymers in the packaging sector, their current industrial status, and regulations are also discussed.

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Section: Potential Underutilized Animal Origin Proteins For Film Developmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biodegradable Packaging Materials from Animal Processing Co-Products and Wastes: An Overview

2021

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“…One of the advantages of these materials over synthetic materials is that they can be obtained from coand by-products from the food industry itself. One of the most problematic co-products of the food industry is blood since it is a major by-product of slaughterhouses and it has a high pollutant capacity [4][5][6]. A total amount of worldwide blood produced from livestock slaughtering of around 4.56 × 10 9 L [7] has been estimated, considering that 15 L of blood would be obtained from each cattle and 2 to 3 L from each pig [8].…”

Section: Introductionmentioning

confidence: 99%

“…For example, in the production of gluten-free bread (using bovine plasma to improve textural properties [11]), surimi (using plasma proteins as protease inhibitors [12]), or in ham pate (bovine plasma as fat replacer [13,14]). Furthermore, these proteins can used as a matrix for the development of edible films, considerably reducing the environmental and economic impact of this by-product [4,15].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the aim of this research is to develop blood plasma protein-based films with improved properties by adding NFC in their formulation. Firstly, bovine plasma was acidified and treated with ethanol to precipitate its proteins [4], and these proteins were used to prepare films reinforced with several concentrations of NFC. In addition, control films prepared with untreated bovine plasma and reinforced with NFC were prepared.…”

Section: Introductionmentioning

confidence: 99%

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Novel Bovine Plasma Protein Film Reinforced with Nanofibrillated Cellulose Fiber as Edible Food Packaging Material

et al. 2021

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Proteins, such as those in blood from slaughterhouses, are a good option for developing edible films. However, films made exclusively from proteins have low strength and high water solubility, which makes them difficult to use in the food industry. The use of cellulosic material, such as nanofibrillated cellulose (NFC), can improve the properties of these films. In the present work, bovine plasma was acidified and treated with ethanol to precipitate its proteins, and these proteins were used to prepare films reinforced with several concentrations of NFC. In addition, control films prepared with untreated bovine plasma and reinforced with NFC were prepared as well. These new edible films were characterized according to their mechanical properties, water vapor permeability, light transmittance, and microstructure. Furthermore, the film with the best properties was selected to be additivated with nisin to test its antimicrobial properties by wrapping meat previously contaminated with Staphylococcus aureus. In this sense, films prepared with the extracted proteins showed better properties than the films prepared with untreated plasma. In addition, the results showed that the reinforcement of the films with a 10% (w/w) of NFC decreased their water solubility and improved their puncture strength and water vapor barrier properties. Finally, the addition of nisin to the films prepared with extracted protein from bovine plasma and NFC gave them antimicrobial properties against S. aureus.

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Other novel materials to manufacture bioplastics

Shange,

Mdluli,

Mishra

et al. 2024

Bioplastics for Sustainability

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A new procedure to prepare transparent, colourless and low-water-soluble edible films using blood plasma from slaughterhouses

Cited by 9 publications

References 8 publications

Biodegradable Packaging Materials from Animal Processing Co-Products and Wastes: An Overview

Biodegradable Packaging Materials from Animal Processing Co-Products and Wastes: An Overview

Novel Bovine Plasma Protein Film Reinforced with Nanofibrillated Cellulose Fiber as Edible Food Packaging Material

Other novel materials to manufacture bioplastics

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