Polymer Materials Research Department, Advanced Technology and New Materials Research Institute, SRTA City, New Boarg El-Arab City, 21934 Alexandria Egypt.
J Food Sci Technol. 2014 Sep;51(9):2234-9. doi: 10.1007/s13197-013-1255-9. Epub 2014 Jan 22.
Carrageenan films have been formulated as a packaging material. Films plasticized with glycerol were loaded with citric acid (1, 0.75, 0.5, 0.25 and 0.1 %) for enhanced antimicrobial effects. Blank and citric acid loaded films were characterized by mechanical properties, scanning electron microscopy and contact angle. In addition, swelling and antibacterial studies were conducted to further characterize the films. Both blank and citric acid loaded films showed different morphology, high elasticity and acceptable tensile (mechanical) properties. These citric acid loaded films produced higher zones of inhibition against Staphylococcus aureus, Proteus mirabilis, Pseudomonas aeruginosa, Escherichia coli and Dickeya chrysanthemi strains compared to blank film.
卡拉胶薄膜已被制成包装材料。用甘油增塑的薄膜中添加了柠檬酸（1%、0.75%、0.5%、0.25%和 0.1%）以增强抗菌效果。空白和载柠檬酸的薄膜通过机械性能、扫描电子显微镜和接触角进行了表征。此外，还进行了溶胀和抗菌研究以进一步表征薄膜。空白和载柠檬酸的薄膜都表现出不同的形态、高弹性和可接受的拉伸（机械）性能。与空白膜相比，这些载柠檬酸的薄膜对金黄色葡萄球菌、奇异变形杆菌、铜绿假单胞菌、大肠杆菌和菊苣根腐病菌的抑制区更大。
