Year: 2018
Type: article
Abstract: The purpose of the study was to establish the possibility of using chitosan with a molecular mass of 19 kDa to cover the surface of the food product with a bio-degradable film. Experimental samples of the biodegradable film had in their composition glycerol transglutaminase, food dye and chitosan substituting a portion of gelatin. Chitosan used in pilot samples is a derivative from chitin which was obtained by processing the shell-containing raw material (a waste from the cutting of cooked crayfish), according to the requirements of TU 9289-003-48203178-2001. In composition of chitosan sample the water content (%) was 9, minerals 0.2 and insolubles 0.3. Chitosan was used as 2% solution in 2% acetic acid solution. The prepared solution of the film-forming composition was spread on the prepared surface and cooled at ambient temperature with further drying followed by the film-forming process. The food biodegradable film produced using the mentioned above method of chitosan application was 0.09-0.10 mm thick. It has been stated that the use of transglutaminase in food biodegradable film production improves film quality characteristics necessary for packaging materials used in the food industry. When biodegradable films are used in the food industry, molded meat products (cutlets, meatballs, sausages) from minced meat of warm-blooded animals, fish, poultry and from combined fish minced meat are wetted with the prepared film-forming composition fixed with circulating air at 25-30°C during 10 minutes. The wetting process is repeated 3-4 times to form a food biodegradable film of the required thickness on the surface of the molded product. The film produced protects the product surface prolonging its storage life and can be eaten together with the product. The film has properties of bioactive substances due to the presence of chitosan and presents an alternative to modern hardly decomposable packing materials.
Institution: Astrakhan State Technical University
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2889830699