AUTHOR=Wang Bin , Yan Shouxin , Qiu Lizhong , Gao Wei , Kang Xuemin , Yu Bin , Liu Pengfei , Cui Bo , Abd El-Aty A. M. TITLE=Antimicrobial Activity, Microstructure, Mechanical, and Barrier Properties of Cassava Starch Composite Films Supplemented With Geranium Essential Oil JOURNAL=Frontiers in Nutrition VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2022.882742 DOI=10.3389/fnut.2022.882742 ISSN=2296-861X ABSTRACT=

In this study, we prepared cassava starch-based films by the casting method. Afterwards, the effects of geranium essential oil (GEO) on the prepared films' physicochemical, morphology, and antibacterial properties were revealed. We found that the thickness and elongation at the break of cassava starch films increased with increasing GEO concentration (from 0.5, 1, and 2%). However, increasing GEO concentration decreased the water content, water vapor permeability, and tensile strength of the prepared films'. Further, the addition of GEO increased the surface roughness, opacity, and antibacterial properties of the prepared films. With the increase of GEO concentration, L* and a* of cassava starch film decreased, while b* and Δ E increased. This study provides a theory for cassava starch-based films as a biological packaging material.