Abstract
The package's main function is to maintain the integrity of the product, protecting it from mechanical damage, loss and gain moisture. Most packaging is made of non biodegradable material and nonrenewable promoting great environmental impact. Among the raw materials used in the preparation of biodegradable films are the whey proteins. Therefore, it is aimed, with this study, produce biodegradable films protein concentrate base bovine whey and evaluate the application efficiency of these films as packaging for cookies. The films were prepared by casting method and characterized with respect to thickness, color, opacity, water solubility and scanning electron microscopy of the surface. The films had OP ≤ 17.76 ± 0.45, L * ≥ 81.93 ± 0.33, a * ≤ 1.26 ± 0.25, b * ≥ 21.70 ± 0.95, C * ≥ 21 , 73 ± 0.43, h * ≥ 1.49 ± 0.01 indicating to be translucent with yellowish coloration. The surface of the films had a homogeneous appearance. The solubility of the films did not exceed the percentage of 29.17 ± 4.81. Whey proteins have been shown to be an excellent alternative for the production of biodegradable films.
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