Promene karakteristika biopolimernih filmova uzrokovane dodatkom esencijalnih ulja

Danijela Šuput,Vera Lazić,Senka Popović,Nevena Hromiš,Sandra Bulut

doi:10.5937/jpea1902061s

Abstract

Biopolymer films can be used as packaging materials in the food industry, when they contribute to a better mechanical integrity of packaged foods and act as barrier to various environmental agents. The greatest disadvantage regarding biopolymer films application are poor barrier characteristic, which is a consequence of their high hydrophilicity; their mechanical and physico-chemical properties are considered to be a moderate disadvantage. This paper presents the effects of chemical modifications, such as the addition of hydrophobic components (essential oils), to the properties of biopolymer films. Except that the addition of essential oils significantly affects the mechanical, barrier and physico-chemical properties of biopolymer films, in this way, biopolymer films become active and exhibit antimicrobial and antioxidant action. Changes in the mechanical and barrier properties of various biopolymer films have been observed in particular, with and without the addition of oil in different concentrations.

Highlights

Biopolymer films represent an interesting alternative to conventional plastic materials, which is why they have been investigated extensively (Šuput et al, 2015; Popović et al, 2018)
Biopolymers could be obtained by microbial production, chemically synthesized using monomers obtained from agro-resources or polymers whose monomers and polymers are both obtained by chemical synthesis from fossil resources (Vieira et al, 2011)
The active function of edible films and coatings is reflected in the protection food products from oxidation and microbiological failure, which leads to improving the quality and improving the safety of the packaged product (Kim et al, 2012; Lee et al, 2012)

Summary

Introduction

Biopolymer films represent an interesting alternative to conventional plastic materials, which is why they have been investigated extensively (Šuput et al, 2015; Popović et al, 2018). Osim što dodatak esencijalnih ulja značajno utiče na mehaničke, barijerne i fizičko-hemijske osobine biopolimernih filmova, na ovaj način biopolimerni filmovi postaju aktivni i ispoljavaju antimikrobno i antioksidativno delovanje sa ciljem očuvanja kvaliteta upakovanog sadržaja. What is most important is that biopolymer films have a high potential to carry active ingredients: anti-browning agents, colorants, flavors, nutrients, spices, antimicrobial and antioxidant compounds that can extend product shelf-life, improve the organoleptic properties and food nutritional value (Ganiari et al, 2017; Šuput et al, 2016b).

Results

Conclusion