biomaterials-2018-posters-accepted-abstracts

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Volume 8

Journal of Biotechnology and Biomaterials

ISSN: 2155-952X

Biomaterials 2018

March 05-06, 2018

March 05-06, 2018 | Berlin, Germany

Annual Conference and Expo on

Biomaterials

Effect of natural waxes and surfactants onmechanical, optical, thermal and water vapor permeability

of banana flour composite films

Aungkana Orsuwan

and

Rungsinee Sothornvit

Kasetsart University-Kamphengsaen Campus, Thailand

anana flour edible film has shown potential as good selective barriers to gas and UV light due to its natural chemical

compounds (starch, protein, lipids and fibers). Nonetheless, the hydrophilicity of the biodegradable banana flour film

showed poor resistance to water vapor and limit the application. To improve this drawback, the addition of each natural wax

(beeswax; BW and carnauba wax; CW) and surfactant (stearic acid; SA and Tween-80; TW) at different ratios of wax and

surfactant (20:80, 50:50 and 80:20 w/w) was investigated on banana composite film properties. As shown, the addition of wax

and surfactant changed the microstructure of the film and also decreased the mechanical properties of films compared to the

neat banana flour film. In addition to the hydrophobicity of wax, the compatibility of components added also played a major

role on the film thermal and water barrier properties. CW had a higher degree of hydrophobicity than BW, however, the films

containing CW showed lower effectiveness in water vapor barrier. This might be attributed to its incompatibility with the

hydrophilic polymer resulting in the presence of some small voids and agglomerated particles on the surface of the film as

shown in the SEMmicrograph. Nevertheless, the best candidate of the banana flour composite film incorporated with BW: SA

at a ratio of 50:50 showed 12% reduction in the water vapor permeability compared to the control film. Therefore, the banana

flour composite film might be considered as a bio-based food packaging material and edible coating as alternative green food

packaging application.

J Biotechnol Biomater 2018, Volume 8

DOI: 10.4172/2155-952X-C1-089