Fabrication and characteristics of tara gum/oleic acid films
The aim of this study was to develop films based on tara gum(TG).Oleic acid(OA)wasadded to the films to improve their water resistance.The effect of OA concentration(0%,5%,10%,15%,and 20%)on opacity,moisture content,mechanical properties,and thermal properties of the TGbased films were examined.The chemical structure and surface morphologies of the TG/OA films wereanalyzed by Fourier transform infrared spectroscopy and scanning electron microscopy.The resultsshow no obvious interaction between TG and OA in the films,as well as the formation of more pores infilms with higher OA content.Addition of OA caused the films to take on a yellow hue in preference towhite and decreased the water content and WVP.The contact angle increased from 76.75° to 107.28°,but the tensile strength decreased from 57.4 to 26.8 MPa.In contrast,the thermal stability increased.The main conclusion of this study is that addition of OA significantly improved the hydrophobicity ofTG-based films.This study provides a novel means of decreasing the sensitivity of these films to water.Therefore,TG/OA films may hold promise as material for biopolymer packaging.
Tara gum oleic acid hydrophobicity edible film
Qianyun Ma Dongying Hu Haixia Wang Lijuan Wang
Key Laboratory of Bio-based Materials Science and Technology of Ministry of Education,Northeast Forestry University,Harbin
国内会议
南京
英文
1-9
2015-10-18（万方平台首次上网日期，不代表论文的发表时间）