Mechanical and thermal properties of irradiated films based on Tilapia (Oreochromis niloticus) proteins
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Radiation Physics and Chemistry
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Proteins are considered potential material in natural films as alternative to traditional packaging. When gamma radiation is applied to protein film forming solution it resulted in an improvement in mechanical properties of whey protein films. The objective of this work was the characterization of mechanical and thermal properties of irradiated films based on muscle proteins from Nile Tilapia (Oreochromis niloticus). The films were prepared according to a casting technique with two levels of plasticizer: 25% and 45% glycerol and irradiated in electron accelerator type Radiation Dynamics, 0.550 MeV at dose range from 0 to 200 kGy. Thermal properties and mechanical properties were determined using a differential scanning calorimeter and a texture analyzer, respectively. Radiation from electron beam caused a slightly increase on its tensile strength characteristic at 100 kGy, while elongation value at this dose had no reduction.
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SABATO, SUSY F.; NAKAMURAKARE, N.; SOBRAL, P.J.A. Mechanical and thermal properties of irradiated films based on Tilapia (Oreochromis niloticus) proteins. Radiation Physics and Chemistry, v. 76, n. 11-12, p. 1862-1865, 2007. DOI: 10.1016/j.radphyschem.2007.02.096. Disponível em: http://repositorio.ipen.br/handle/123456789/5231. Acesso em: 30 Dec 2025.
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