Perez-Puyana Víctor, Felix Manuel, Romero Alberto, Guerrero Antonio
Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, E-41012 Sevilla, Spain.
J Sci Food Agric. 2017 Jun;97(8):2671-2674. doi: 10.1002/jsfa.8051. Epub 2016 Oct 20.
In the present work, bioplastics from renewable polymers were studied in order to reduce the huge generation of plastic wastes, causing an environmental problem that continues owing to the increasing demand for plastic products.
Bioplastics with much better antimicrobial properties, in particular against Gram-positive bacteria, were obtained with the addition of nisin to the initial protein/plasticizer mixture. However, the addition of nisin produces more rigid but less deformable bioplastics (higher Young's modulus but lower strain at break).
The results obtained are useful to demonstrate the antimicrobial properties of pea protein-based bioplastics by adding nisin and make them suitable as potential candidates to replace conventional plastics in food packaging. © 2016 Society of Chemical Industry.
在本研究中，对可再生聚合物制成的生物塑料进行了研究，以减少大量塑料废物的产生，由于对塑料制品的需求不断增加，这一环境问题仍在持续。
在初始蛋白质/增塑剂混合物中添加乳酸链球菌素后，获得了具有更好抗菌性能的生物塑料，尤其是对革兰氏阳性菌。然而，添加乳酸链球菌素会使生物塑料更硬但更不易变形（杨氏模量更高但断裂应变更低）。
所得结果有助于证明通过添加乳酸链球菌素，豌豆蛋白基生物塑料具有抗菌性能，并使其适合作为食品包装中替代传统塑料的潜在候选材料。© 2016化学工业协会。
