Abstract Bio-nanocomposites are bio-based polymers made up of two major components in which one acts as a matrix called biopolymer (continuous phase) and second called as reinforcement agent (dispersed phase) with dimensions in the range of 1–100 nm. These exhibit typical characteristics such as flexibility, biocompatibility, biodegradability, eco-friendliness, and cost-effectiveness which can be further enhanced by the reinforcement components. Bio-nanocomposites can be modified by fusion of nanofillers such as MMT (montmorillonite), AgO, TiO2, SiO2, ZnO and biodegradable polymers including polyhydroxylbutyrate (PHB), polybutylene succinate (PBS), polylactic acid (PLA) and poly-caprolactone (PCL), along with natural biopolymers such as starch and chitosan. Incorporation of antimicrobial agents into the food packaging materials inhibits the growth of microorganisms on food surfaces and thus increases their shelf life. The various experimentally designed antimicrobial nanocomposites are PLA/halloysite, PLA/Ag nanoparticles, hydroxyapatite/titania, layered silicate, and cellulose nanofibers which could inhibit the growth of different pathogens such as Listeria monocytogenes, Escherichia coli, and B. subtilis. These advantageous properties of antimicrobial bio-nanocomposites suggest their practical use in the food packaging industry.

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抗菌生物纳米复合材料及其在食品包装中的潜在应用

摘要 生物纳米复合材料是由两种主要成分组成的生物基聚合物，其中一种作为基质，称为生物聚合物（连续相），另一种称为增强剂（分散相），尺寸范围为 1-100 nm。这些表现出典型的特性，例如柔韧性、生物相容性、生物降解性、生态友好性和成本效益，这些特性可以通过增强组件进一步增强。生物纳米复合材料可以通过融合纳米填料如 MMT（蒙脱石）、AgO、TiO2、SiO2、ZnO 和可生物降解聚合物（包括聚羟基丁酸酯 (PHB)、聚丁二酸丁二醇酯 (PBS)、聚乳酸 (PLA) 和聚己内酯 (PCL)）来改性)，以及天然生物聚合物，如淀粉和壳聚糖。在食品包装材料中加入抗微生物剂可抑制微生物在食品表面的生长，从而延长其保质期。各种实验设计的抗菌纳米复合材料是 PLA/埃洛石、PLA/Ag 纳米颗粒、羟基磷灰石/二氧化钛、层状硅酸盐和纤维素纳米纤维，它们可以抑制不同病原体的生长，如单核细胞增生李斯特菌、大肠杆菌和枯草芽孢杆菌。抗菌生物纳米复合材料的这些有利特性表明它们在食品包装行业中的实际应用。纤维素纳米纤维可以抑制单核细胞增生李斯特菌、大肠杆菌和枯草芽孢杆菌等不同病原体的生长。抗菌生物纳米复合材料的这些有利特性表明它们在食品包装行业中的实际应用。纤维素纳米纤维可以抑制单核细胞增生李斯特菌、大肠杆菌和枯草芽孢杆菌等不同病原体的生长。抗菌生物纳米复合材料的这些有利特性表明它们在食品包装行业中的实际应用。