Active packaging based on biopolymers for food packaging

Ambalažni materijali za pakiranje hrane imaju velik značaj u očuvanju kvalitete i roka trajanja hrane. Tako, polimerni materijali omogućuju zamrzavanje hrane i time značajno produljuju vijek njezina trajanja uz zadržavanje nutritivnih vrijednosti. Nadalje, to doprinosi kvaliteti prehrambenih navika i hrana nije samo sezonska već ju je moguće konzumirati kroz cijelu godinu. Također, značaj doprinos u smanjenju bacanja hrane i nastajanja biootpada jer usporava proces kvarenja. Stoga, je ambalažna za pakiranje hrane predmet stalnih istraživanja. Ambalažni materijali za pakiranje hrane predstavljaju veliki problem nakon upotrebe zbog otežanog recikliranja tankih, često višeslojnih plastičnih materijal. Stoga, biopolimeri predstavljaju kvalitetnu zamjenu, kao materijali za pakiranje hrane budući da su biorazgradljivi. Kako bi se podigla kvaliteta ambalažnih materijala za pakiranje hrane s ciljem usporavanja proces kvarenja u bioplimerne filmove dodaju se aktivne tvari, pri čemu nastaje aktivna ambalaža. U ovom radu opisuju se različiti ambalažni materijali kao i njihova svojstva. Upoznaju se najznačajniji sintetski i biopolimeri koji se koriste za proizvodnju ambalaže za pakiranje hrane.Packaging materials for food packaging are of great importance in preserving the quality and shelf life of food. Thus, polymer materials allow food to be frozen and thereby significantly extend its shelf life while retaining its nutritional value. Furthermore, it contributes to the quality of eating habits and food is not only seasonal but can be consumed throughout the year. Also, a significant contribution to the reduction of food waste and the creation of biowaste because it slows down the spoilage process. Therefore, packaging for food packaging is the subject of constant research. Packaging materials for food packaging represent a big problem after use due to the difficulty of recycling thin, often multi-layered plastic materials. Therefore, biopolymers represent a quality substitute, as materials for food packaging, since they are biodegradable. In order to improve the quality of packaging materials for food packaging with the aim of slowing down the spoilage process, active substances are added to biopolymer films, resulting in active packaging. This paper describes different packaging materials as well as their properties. The most important synthetic and biopolymers used for the production of packaging for food packaging are introduced