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Effects of Schisandra chinensis extract on hemorheology and microcirculation in hyperlipidemia rats.

Date:2016/9/8 22:05:40

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

Chinensis Extract.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 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 Schisandra chinensis 

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

decreased. The originality of the work lies in the use of extract from Schisandra chinensis extract, 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, 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.