Effect of peppermint and citronella essential oils on properties of fish skin gelatin edible films

2015 Global Conference on Polymer and Composite Materials

材料科学;化学

Yanwong, S.^1 ; Threepopnatkul, P.^1

Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom

73000, Thailand^1

关键词: Antibacterial properties;    Edible films;    Elongation at break;    Heat stability;    Solubility in waters;    Solution casting;    Staphylococcus aureus;    Water vapor transmission;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/87/1/012064/pdf
DOI  :  10.1088/1757-899X/87/1/012064

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Fish skin gelatin films incorporated with peppermint and citronella essential oils at difference concentrations (10, 20 and 30% w/w) were prepared by solution casting. Addition of peppermint oil contributed to a significant decrease of tensile strength and Young's modulus, while the percent elongation at break showed an obvious increase except at 30% w/w. On the other hand, addition of citronella oils promoted a great increase of tensile strength and young's modulus, but an intense decrease of the percent elongation at break. At the predetermined content, the film incorporated with citronella oils outperformed the one with peppermint oils in term of water vapor transmission and solubility in water. Thermal properties of gelatin films with citronella oils exhibited an enhancement in heat stability, while the one with peppermint oils showed slight decrease in heat stability. The additions with both of essential oils exhibited excellent antibacterial properties against both Staphylococcus aureus and Escherichia coli.