Background: Recently, numerous studies on the packaging of nanomaterials for foods
underline the significant function of nanofillers in the manufacturing of innovative nanocomposites
based on polymer or biopolymer matrices. It is evident in the literature that nanofillers exhibit effective
characteristics such as antimicrobial potential, barrier, mechanical, and thermal properties.
However, the exact mechanisms regulating the occurrence of the antimicrobial activity of nanofillers
are only hypothesized, with the literature containing controversies regarding the mechanisms
of nanofiller-induced toxicity.
Objective: The objective of this review is to highlight several types of nanofillers, especially inorganic
nanofillers that can be used along with different polymers or biopolymers to form innovative
food packaging materials. The antimicrobial potential of metal-based nanofillers is also discussed in
the second part of the review.
Results: Even though numerous reports on polymer or biopolymer nanomaterial applications in
food packaging are available, the purpose described in those reviews has not been aimed in this article,
as a smaller number of reviews have approached food packaging nanomaterials in the way as
done in this review article.
Conclusion: It is expected that the information contained in this paper will complement previous
reports, and open new vistas for explorers to apply nanofillers in the functional food packaging area.