Hou Bing-Yi, Wang Be-Jen, Weng Yih-Ming
Department of Food Science, National Chiayi University, 300 University Road, Chiayi 60004, Taiwan.
Foods. 2023 Mar 30;12(7):1475. doi: 10.3390/foods12071475.
To improve the mechanical properties and confer antimicrobial activity, transglutaminase (TGase) was used as a cross-linking agent and lysozyme (LYS) was incorporated as an antimicrobial agent to prepare novel active tilapia collagen (TC) films. While the difference in visual appearance was not obvious, the LYS incorporation increased the opacity of TC films. The water vapor permeability of all TGase cross-linked TC films was significantly ( < 0.05) lower than that of the control film (prepared without TGase and LYS). In addition, while the tensile strength and Young's modulus of all TGase cross-linked TC films were significantly ( < 0.05) higher than those of the control film, elongation at break of all TGase cross-linked TC films was significantly ( < 0.05) lower than that of the control film. LYS incorporated TC films showed antimicrobial activity against , , , and Collectively, TC films with improved physiochemical properties and antimicrobial activity have a good potential to serve as active food packaging materials.
为了改善机械性能并赋予抗菌活性，使用转谷氨酰胺酶（TGase）作为交联剂，并加入溶菌酶（LYS）作为抗菌剂来制备新型活性罗非鱼胶原蛋白（TC）薄膜。虽然视觉外观上的差异不明显，但加入LYS增加了TC薄膜的不透明度。所有经TGase交联的TC薄膜的水蒸气透过率均显著低于对照薄膜（未添加TGase和LYS制备）（P<0.05）。此外，所有经TGase交联的TC薄膜的拉伸强度和杨氏模量均显著高于对照薄膜（P<0.05），而所有经TGase交联的TC薄膜的断裂伸长率均显著低于对照薄膜（P<0.05）。加入LYS的TC薄膜对[具体菌种1]、[具体菌种2]、[具体菌种3]、[具体菌种4]和[具体菌种5]显示出抗菌活性。总体而言，具有改善的物理化学性质和抗菌活性的TC薄膜有很大潜力用作活性食品包装材料。
