Preparation and characterization of sponge film made from feathers

Zhuang, Yuan; Wu, Xiaoqian; Cao, Zhilong; Zhao, Xiaoxiang; Zhou, Meihua; Gao, Pin

doi:10.1016/j.msec.2013.07.032

Cited by 22 publications

(8 citation statements)

References 22 publications

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“…Keratin like other natural biopolymers viz., collagen and chitosan can be used for making biomaterials in tissue repair and regeneration (Alsarra 2009 ; Natarajan et al 2012 ; Ramshaw et al 2009 ; Ramadass et al 2013 ). Such applications would enhance the value of utilization of keratins, as recent reports support the acceptance of keratin as a material for biotechnology and biomedical applications (Hill et al 2010 ; Rouse and Van Dyke 2010 ; Zhuang et al 2013 ; Patrucco et al 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Extraction and characterization of keratin from bovine hoof: A potential material for biomedical applications

2014

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Keratin from the hoof is a less explored source for making valuable products. In this paper we present the extraction of pure keratin from bovine hooves and characterized them to better address the possible exploitation of this bio-resource as an alternative material for tissue engineering applications. The keratin protein from the pulverized hooves was extracted by reduction, which was observed to be pure, and two polypeptide chains of molecular weight in the range of 45–50 and 55–60 KDa were determined using SDS-PAGE assay. FTIR analysis complementing circular dichroism (CD) data, established that hoof keratin predominantly adopted α-helical conformation with admixture of β-sheet. The keratin was shown to have appreciably high denaturation temperature (215°C) as indicated by differential scanning calorimetric (DSC) analysis. Thermogravimetric analysis (TGA) also showed the retention of 50% of the original weight of the sample even at a temperature of 346°C. The keratin from the hoof had been observed to be biocompatible when analyzed with MTT assay using fibroblast cells, showing more than 90% cell viability. Hence, hoof keratin would be useful for high value biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Extraction and characterization of keratin from bovine hoof: A potential material for biomedical applications

2014

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“…On the other hand, feather-containing films presented a small endothermic transition in the non-reversible transition associated probably to the intrinsic water evaporation. Subsequently, a broad endothermal first-order transition due to helix denaturation protein was revealed between 150 and 250 • C with a maximum at approximately 208 • C [28,29].…”

Section: Modulated Differential Scanning Calorimetry (Mdsc) Resultsmentioning

confidence: 99%

Agro-Industrial Protein Waste and Co-Products Valorization for the Development of Bioplastics: Thermoprocessing and Characterization of Feather Keratin/Gliadin Blends

López-de-Dicastillo,

Gómez-Estaca,

López-Carballo

et al. 2023

Molecules

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Biopolymers based on plant and animal proteins are interesting alternatives in the development of films with future prospects as food packaging. Considering that in recent years there has been an increasing interest in the valorization of agro-industrial residues and by-products and that the blending of polymers can lead to materials with improved properties, in this work, keratin-rich feather fibers and gliadins were blended at different ratios in order to develop sustainable and biodegradable films. Control gliadin G100, feather F100 films, and their blends at 3:1 (G75F25), 2:2 (G50F50), and 1:3 (G25F75) ratios were successfully developed through thermoprocessing. The physical properties were differentiated as a function of the concentration of both polymeric matrices. Although gliadins showed higher hydrophilicity as confirmed by their highest swelling degree, films with high gliadin ratios exhibited lower water vapor permeability values at low and medium relative humidities. On the other hand, the feather fiber-based films displayed the highest Young’s modulus values and provided an oxygen barrier to the blends, principally at the highest relative humidity. In conclusion, the blend of these protein-based polymers at different ratio resulted in interesting composites whose physical properties could be adjusted.

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“…The maximum adsorption capacities of the keratin porous sponge film for Azure A and methyl orange were 0.063 and 0.037 mmol/g, respectively. Zhuang et al [ 119 ] also prepared chicken keratin porous and flexible sponge film using a freeze-drying method. Interestingly, they used the insoluble residues from the feather keratin extraction as a film-forming material.…”

Section: Preparation Methods Of Keratin-based Biofilmsmentioning

confidence: 99%

Preparation Methods and Functional Characteristics of Regenerated Keratin-Based Biofilms

Wang

Tong

2022

Polymers

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The recycling, development, and application of keratin-containing waste (e.g., hair, wool, feather, and so on) provide an important means to address related environmental pollution and energy shortage issues. The extraction of keratin and the development of keratin-based functional materials are key to solving keratin-containing waste pollution. Keratin-based biofilms are gaining substantial interest due to their excellent characteristics, such as good biocompatibility, high biodegradability, appropriate adsorption, and rich renewable sources, among others. At present, keratin-based biofilms are a good option for various applications, and the development of keratin-based biofilms from keratin-containing waste is considered crucial for sustainable development. In this paper, in order to achieve clean production while maintaining the functional characteristics of natural keratin as much as possible, four important keratin extraction methods—thermal hydrolysis, ultrasonic technology, eco-friendly solvent system, and microbial decomposition—are described, and the characteristics of these four extraction methods are analysed. Next, methods for the preparation of keratin-based biofilms are introduced, including solvent casting, electrospinning, template self-assembly, freeze-drying, and soft lithography methods. Then, the functional properties and application prospects of keratin-based biofilms are discussed. Finally, future research directions related to keratin-based biofilms are proposed. Overall, it can be concluded that the high-value conversion of keratin-containing waste into regenerated keratin-based biofilms has great importance for sustainable development and is highly suggested due to their great potential for use in biomedical materials, optoelectronic devices, and metal ion detection applications. It is hoped that this paper can provide some basic information for the development and application of keratin-based biofilms.

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Preparation and characterization of sponge film made from feathers

Cited by 22 publications

References 22 publications

Extraction and characterization of keratin from bovine hoof: A potential material for biomedical applications

Extraction and characterization of keratin from bovine hoof: A potential material for biomedical applications

Agro-Industrial Protein Waste and Co-Products Valorization for the Development of Bioplastics: Thermoprocessing and Characterization of Feather Keratin/Gliadin Blends

Preparation Methods and Functional Characteristics of Regenerated Keratin-Based Biofilms

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