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Preparation and Characterization of Antimicrobial Packaging Films from Cricket Chitosan Enriched with Schisandra Chinensis Extract

Date:2016/3/28 17:12:44


Chitosan films for food packaging applications were prepared from shrimp and cricket chitosan, enriched with 

Schisandra chinensis extract. Physicochemical and antibacterial properties of the films were studied and 

compared with references studying similar chitosan films. Chitosan is a biodegradable polymer, mostly harvested

 from shells of crustaceans, which has been studied for packaging applications, as it can improve shelf life 

of food products, especially when enriched with antibacterial and antioxidant compounds. The addition of these

 substances, such as herbal extracts, influences Schisandra chinensis extract the physicochemical properties of the film, which are 

important parameters for characterization of packaging material, as it is necessary to assess its ability to 

fulfill the necessary packaging requirements. It  was shown that insect chitosan film has superior or equivalent

 physicochemical properties and superior antimicrobial properties to shrimp chitosan. Addition of S. chinensis 

extract improved antibacterial and water vapor permeability barrier properties, however resistance to water 

solubility decreased Schisandra chinensis extract

The originality of the work lies in the use of extract from S. chinensis, which has not been used in films 

before and which demonstrated antibacterial effect on Gram-positive bacteria, and in harvesting chitosan from 

crickets (Gryllus bimaculatus) as an alternative chitosan source, Schisandra chinensis extract as all previous experiments with chitosan 

films have been done with crustacean chitosan. Moreover, during the extraction of insect chitosan, novel and 

effective decolorization method was discovered.