Iranian Research Organization for Science and Technology (IROST) Innovative Food Technologies 2783-350X 4 4 2017 06 22 Optimization of physical, mechanical and thermal properties of myofibrillar protein–cellulose nanocrystal nanocomposite Optimization of physical, mechanical and thermal properties of myofibrillar protein–cellulose nanocrystal nanocomposite 77 92 422 10.22104/jift.2017.422 FA Bahareh Shabanpour Professor., Department of Seafood Processing, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Iran Mohsen Kazemi Ph. D. Student., Department of Seafood Processing, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Iran S. Mahdi Ojagh Associated Prof., Department of Seafood Processing, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Iran Parastoo Pourashouri Assistant Prof., Department of Seafood Processing, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Iran Journal Article 2016 10 08 Nanocrystalline cellulose (NCC) reinforced fish myofibrillar protein (FMP)-based nanocomposite film was prepared by solution casting. The NCC content in the matrix was varied from 2, 4 and 6% ((w/w) % dry matrix). It was found that the nanocomposite reinforced with 6 wt% NCC content exhibits the highest tensile strength which was increased by 49% compared to the control. The formation of percolated networks of cellulose nanocrystals within protein matrix resulted in improving the mechanical properties of nanocomposites.  Incorporation of NCC also significantly improved water vapor permeability (WVP) of the nanocomposite showing a 33% decrease due to 6 wt% NCC loading. The moisture sorption and water solubility studies revealed that the addition of cellulose nanocrystals reduced the moisture affinity of FMP, which is very favorable for edible packaging applications. Molecular interactions between FMP and NCC were supported by Fourier Transform Infrared Spectroscopy. Investigation of DSC factors (T<sub>g</sub>, T<sub>c</sub>, T<sub>m</sub>) shown that thermal stability of FMP-based nanocomposite films was improved after incorporation of NCC. Nanocrystalline cellulose (NCC) reinforced fish myofibrillar protein (FMP)-based nanocomposite film was prepared by solution casting. The NCC content in the matrix was varied from 2, 4 and 6% ((w/w) % dry matrix). It was found that the nanocomposite reinforced with 6 wt% NCC content exhibits the highest tensile strength which was increased by 49% compared to the control. The formation of percolated networks of cellulose nanocrystals within protein matrix resulted in improving the mechanical properties of nanocomposites.  Incorporation of NCC also significantly improved water vapor permeability (WVP) of the nanocomposite showing a 33% decrease due to 6 wt% NCC loading. The moisture sorption and water solubility studies revealed that the addition of cellulose nanocrystals reduced the moisture affinity of FMP, which is very favorable for edible packaging applications. Molecular interactions between FMP and NCC were supported by Fourier Transform Infrared Spectroscopy. Investigation of DSC factors (T<sub>g</sub>, T<sub>c</sub>, T<sub>m</sub>) shown that thermal stability of FMP-based nanocomposite films was improved after incorporation of NCC. Myofibrillar protein Nanocrystalline cellulose Nanocomposite mechanical properties https://jift.irost.ir/article_422_b42ef5296fae48f823091e2cc2c6ecd2.pdf