Development of a technology for polysaccharide-based film coating

Abstract

This work describes the design of a film coating based on polysaccharides of bacterial and plant origin with several methods of application (by spraying, brushing and wrapping) on food. We used the bacterial polysaccharide xanthan as a thickener, the plant polysaccharide carboxymethyl cellulose (CMC) as a structurant, and the biological additive lecithin as a plasticizer. Depending on the film coating application method, concentrations of the studied polymers were selected with the same component composition. A technology for preparing the film coating was developed. The influence of heating (40, 50, 60, and 70 ° C) on the solubility of polysaccharide solutions with several component ratios was studied; the temperature of 50 ° C was chosen as resulted in a strong, stable, but not too viscous gel. The effect of concentration on the appearance and thickness of the film coatings was studied.

Study of the Biological Properties of New Smart Packaging Materials for Use in Agricultural Industries

“…Previously, we have developed film coatings [11,12], applied to food products in different ways: by spraying, brushing, and wrapping. These packaging materials had such advantageous organoleptic characteristics as transparency, uniformity, density, lack of taste and odor.…”

“…In the course of the experiment, film coatings were made with several concentrations of polysaccharides, xanthan and CMC (%): 0.60 and 2.73 (spraying); 0.90 and 2.05 (brushing); 1.61 and 1.38 (wrapping), respectively. These concentrations were taken because we previously showed that such concentrations are optimal for the design of film coatings on food products for application in various ways [11,12].…”

Physicochemical Properties of a Bioactive Polysaccharide Film from Cassia grandis with Immobilized Collagenase from Streptomyces parvulus (DPUA/1573)

“…The thickness of polysaccharide films with incorporated compounds can be influenced by several factors. Beloglazova et al [36] observed that the concentration of polysaccharides influenced the appearance and thickness of the films. Cado et al [37] reported that the simultaneous spraying of chitosan, hyaluronic acid and alginate resulted in a linear increase in thickness with spraying time.…”