摘要
以鮰鱼皮胶原蛋白与壳聚糖为原料制备可食用复合膜,用阿魏酸进行改性。通过正交试验考察阿魏酸添加量、热处理温度和热处理时间对复合膜性能的影响,以期降低复合膜的水蒸气透过率和增强复合膜的机械性能。结果表明:阿魏酸添加量、热处理温度、热处理时间对复合膜的性能影响显著。最佳改性条件为:阿魏酸添加量2%、热处理温度70℃、热处理时间30 min。在此条件下,得到复合膜拉伸强度(24.72±0.86)MPa、断裂伸长率(102.99±1.58)%、水蒸气透过率(0.25±0.01)(g·mm)/(h·m2·kPa)、溶解度(27.96±0.76)%、透光率(84.1±0.9)%。
The aim of this work was to develop composite edible film based on Amiurus nebulosus skin collagen and chitosan using ferulic acid to modify functional properties of the composite film. The effects of ferulic acid concentration, temperature and heating time on the water vapor permeability and mechanical properties of the edible film were investigated by using an orthogonal array design. The results showed that all the investigated variables could affect significantly the properties of the films. The tensile strength, elongation at break, water vapor permeability, solubility, and light transmittance of the composite film prepared by adding 2% ferulic acid and heating at 70 ℃ for 30 min were(24.72 ± 0.86) MPa,(102.99 ± 1.58)%,(0.25 ± 0.01)(g·mm)/(h·m2·kPa),(27.96 ± 0.76)%, and(84.1 ± 0.9)%, respectively.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2014年第20期73-78,共6页
Food Science
基金
江西省高等学校科技落地计划项目(KJLD12009)
关键词
阿魏酸
胶原蛋白
壳聚糖
改性
复合膜
ferulic acid
collagen
chitosan
modification
composite film
