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Proteins Derived Bionanocomposites from Poultry By-Product for Food Packaging Applications Open Access


Other title
Bionanocomposites from spent hen
Type of item
Degree grantor
University of Alberta
Author or creator
Zubair, Muhammad
Supervisor and department
Ullah, Aman (Department of Agricultural, Food and Nutritional Science)
Wu, Jianping (Department of Agricultural, Food and Nutritional Science)
Examining committee member and department
Wu, Jianping (Department of Agricultural, Food and Nutritional Science)
Rajender, Gupta (Department of chemical and materials engineering)
Ullah, Aman (Department of Agricultural, Food and Nutritional Science)
Aranda-Saldana, Marleny (Department of Agricultural, Food and Nutritional Science)
Department of Agricultural, Food, and Nutritional Science
Bioresource Technology
Date accepted
Graduation date
2017-06:Spring 2017
Master of Science
Degree level
Spent hens, a poultry by-product, have little marketplace and their disposal methods are infeasible so to find alternative uses which are environmentally safe is prudent. In this study, proteins were extracted from spent hen by alkali aided extraction method with high recovery (74%) and purity (96%). For the preparation of proteins derived bionancomposite films, the types and ratio of different plasticizers (glycerol, sorbitol, ethylene glycol, poly(ethylene) glycol, butanediol), and chitosan as a cross linker were optimized. Glycerol was found a compatible plasticizer with 3% chitosan. Further, three nanoparticles (bentonite, glycidyl POSS and cellulose nanocrystals) with different concentration were used to evaluate the mechanical strength of the prepared bionancomposite films. The bentonite (5%) with 40% glycerol gave better results among all nanoparticles with mechanical strength of 11.37 MPa. While CNCs (5%) and glycidyl POSS (3%) provided the maximum mechanical strength of 6.86 MPa, and 6.47 MPa respectively. All protein derived bionancomposite films were characterized by the transmission electron microscopy (TEM), thermal gravimetric analysis (TGA), dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and attenuated total reflectance- fourier transform infrared spectroscopy (ATR- FTIR). The results show that a good intercalation and/or exfoliation of the protein biopolymers into clay interlayer galleries was observed leading to improved thermal, mechanical and barrier properties. These observations provided an important basis in the experimental design of high performance bionancomposite films for food packaging applications.
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