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DEVELOPMENT OF BIODEGRADABLE PACKAGING FILMS AND EDIBLE COATINGS FOR FOOD PRODUCTS BASED ON COMPOSITE MATERIALS

100%
Kuprina E. E., Yakkola A. N., Manuylov A. N., Kabysh O., Zhirkova M. G., Zhernyakova A. V., Shmelkova M. A., Vitalyevich T. S., Stepanov A.
Progress on Chemistry and Application of Chitin and its Derivatives
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2020
|
vol. 25
124 - 131
EN
Plastic is undoubtedly the most convenient type of packaging, but at the same time it is not ecologically friendly. The widespread use of packaging materials all over the world makes us think more and more about the harm of plastic to the environment and humans. It does not decompose in natural conditions and accumulates in huge quantities, because it is mostly used as a single-use packaging. Therefore, the development of environmentally friendly biodegradable edible films and coatings is relevant. Edible food packaging is an important step in food production and one of the innovative directions of food packaging development. This article presents materials on the development of the formulation and manufacturing technology of new composite materials based on sodium alginate and chitosan for the production of edible coatings and films. The results of the physical, chemical and bactericidal properties of these materials are presented.
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SYNTHESIS AND CHARACTERIZATION OF CHITOSAN/SODIUM ALGINATE BLEND MEMBRANE FOR APPLICATION IN AN ELECTROCHEMICAL CAPACITOR

100%
Nowacki K., Galiński M., Stępniak I.
Progress on Chemistry and Application of Chitin and its Derivatives
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2020
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vol. 25
174 - 191
EN
In this work, we report a stepwise formation method of a chitosan/sodium alginate polyelectrolyte complex (CS/SA PEC) membrane. The proposed method aiming at the utilization of the ultrasonic treatment of chitosan and sodium alginate solution allowed us to obtain a highly homogeneous hybrid membrane for electrochemical usage. The CS/SA PEC membrane saturated in a 2 M Li2SO4 aqueous solution was used in electrochemical double layer capacitor (EDLC) cell to study its applicability as quasi-solid electrolyte. Electrochemical characteristic of EDLC cells was determined by electrochemical impedance spectroscopy, cyclic voltammetry and galvanostatic charge/discharge methods. The results show that the EDLC cell with CS/SA PEC quasi-solid electrolyte exhibit a comparable specific capacitance (102 F g-1 for 0–0.8 V) to CS reference (100 F g-1 for 0–0.8 V) and commercial separator (99 F g-1 for 0–0.8 V) cells. Thus, the CS/SA PEC membrane can be considered as an alternative modification for chitosanbased materials of electrochemical purpose.
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DEVELOPMENT OF BIODEGRADABLE POLYSACCHARIDE-PROTEIN EDIBLE GEL COAT WITH ANTIMICROBIAL PROPERTIES FOR FOOD PRODUCTS

67%
Kuprina E. E., Yakkola A. N., Manuylov A. N., Kiprushkina E. I., Shestopalova I. A., Demidov P. I.
Progress on Chemistry and Application of Chitin and its Derivatives
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2021
|
vol. 26
148-161
EN
Food edible coatings are an important milestone in food production and one of the innovations in food packaging development. This article presents materials on the development of the formulation and technology for the manufacture of a novel composite coating based on sodium alginate, chitosan and protein hydrolysate obtained by the electrochemical method of double extraction from cod processing waste to obtain edible coatings for semi-finished fish products. Furthermore, the physicochemical, physical, mechanical and microbiological properties of this material are described.
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