Mechanical and Barrier Properties of Cross-Linked Soy and Whey Protein Based Films
| Autor: | C. Le Tien, G D’Aprano, B Ouattara, Mircea-Alexandru Mateescu, Monique Lacroix, S. F. Sabato, H L Yu |
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| Rok vydání: | 2001 |
| Předmět: |
Vinyl alcohol
Whey protein Hot Temperature biology Chemistry technology industry and agriculture General Chemistry Thermal treatment Milk Proteins Elastomer Whey protein isolate chemistry.chemical_compound Whey Proteins Chemical engineering Gamma Rays Plant protein Permeability (electromagnetism) Carboxymethylcellulose Sodium Polyvinyl Alcohol Polymer chemistry Soybean Proteins biology.protein General Agricultural and Biological Sciences Soy protein |
| Zdroj: | Journal of Agricultural and Food Chemistry. 49:1397-1403 |
| ISSN: | 1520-5118 0021-8561 |
| Popis: | Sterilized biofilms based on soy protein isolate (SPI, S system) and a 1:1 mixture of SPI and whey protein isolate (WPI, SW system) were achieved through the formation of cross-links by means of γ-irradiation combined with thermal treatments. The effect of the incorporation of carboxymethylcellulose (CMC) and poly(vinyl alcohol) was also examined. γ-Irradiation combined with thermal treatment improved significantly the mechanical properties, namely, puncture strength and puncture deformation, for all types of films. Irradiated formulations that contain CMC behave more similarly as elastomers. CMC showed also significant improvements of the barrier properties, namely, water vapor permeability, for irradiated films of the S system and for non-irradiated films of the SW system. Keywords: γ-Irradiation; cross-linking; soy protein; whey protein; carboxymethylcellulose; biofilms; poly(vinyl alcohol) |
| Databáze: | OpenAIRE |
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