Papers by Keyword: Antibacterial and Physical Properties

Abstract: The antibacterial PVA film was produced by addition of the clove oil/β-cyclodextrin(β-CD) inclusion complex into PVA directly with solvent salivating. The formation of clove oil /β-CD inclusion complex was characterized by Fourier transform infrared (FTIR).The influence of different additive amount of inclusion complex on the mechanical properties, transparency, and moisture permeable performance of the film had been studied. The elongation at break of films decreased in a low degree when the adding was less than 20%; The transmittance of films declined apparently when the inclusion complex adding was above 15%, and the visuality of the films didn’t change when the adding was over 25%. The inclusion complex adding had effect on the moisture permeability of films, and moisture permeability of films increased sharply when the adding was more than 15%.

Abstract: The antifungal PVA film was fabricated by addition of the clove oil/β-cyclodextrin inclusion complex into PVA, which is acted as the basic packaging material. The mechanical properties, oxygen permeability and the bacteriostatic action of the film varied with the additional amount of inclusion complex. The tensile strength of PVA film decreased with the addition of inclusion complex and the effect is little when the amount was less than 25%. Adding less than 25% had no obviously effect on oxygen permeability of the film. It proved that pure PVA films have no antibacterial property and the growth of aspergillus was inhibited in different degrees when the content was different. The growth range of aspergillus is smaller and the bacteriostatic action to aspergillus is increased with the increase of inclusion complex amount of agent. The inhibitory zone appeared when the inclusion complex amount was more than 20%.