摘要
以木糖醇和甘油为复合增塑剂制备出木糖醇/甘油/玉米醇溶蛋白膜。通过TGA、扫描电镜、红外光谱及电子织物强力机研究玉米醇溶蛋白膜的热性能、微观结构及力学性能。结果表明:在160℃之前膜性能稳定,与纯玉米醇溶蛋白膜相比,添加复合增塑剂后玉米醇溶蛋白膜表面产生了多孔结构,随木糖醇含量增加孔洞结构有增大的趋势,抗拉强度略有下降,伸长率有所提高。
Xylitol/glycerol/zein film were produced with xylitol/glycerol as a compound plasticizer.Microstructure,mechanical properties and thermal stability of xylitol/glycerol/zein film were studied.The thermal properties of xylitol/zein film were stable below 160 ℃,there was holes in zein film which contained xylitol and glycerol,the tensile strength of xylitol/glycerol/zein film is lower than the tensile strength of pure zein film,but the elongation at break of the xylitol/glycerol/zein film was higher than the elongation at break of pure zein film.
出处
《食品与机械》
CSCD
北大核心
2012年第3期171-173,共3页
Food and Machinery
关键词
玉米
醇溶蛋白
增塑剂
蛋白膜
热性能
微观结构
力学性能
corn； zein； plasticizer； protein films； thermal properties； microstructure； mechanical properties
