Starch-chitosan-Taro mucilage nanocomposite active food packaging film doped with zinc oxide nanoparticles - Fabrication, mechanical properties, anti-bacterial activity and eco toxicity assessment.

Autor: Priyanka S; Centre for Applied Research, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 602105, Tamil Nadu, India., S Karthick Raja Namasivayam; Centre for Applied Research, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 602105, Tamil Nadu, India. Electronic address: biologiask@gmail.com., John F Kennedy; Chembiotech Ltd, Institute of Research and Development, Kyrewood House, Worcestershire WR15 8FF, UK., Meivelu Moovendhan; Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Thandalam, Chennai 602105, Tamil Nadu, India. Electronic address: moovendhan85@gmail.com.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Oct; Vol. 277 (Pt 3), pp. 134319. Date of Electronic Publication: 2024 Aug 02.
DOI: 10.1016/j.ijbiomac.2024.134319
Abstrakt: In this research, a novel active food packaging material was developed by blending starch, chitosan, and plant-based mucilage with zinc oxide nanoparticles. The polymeric nanocomposite film, created by incorporating zinc oxide nanoparticles into the mixture using a straightforward approach, was analyzed for its structural and functional attributes using FTIR, XRD, SEM, and TGA/DSC. These analyses revealed a robust interaction between the polymers' functional groups and the nanoparticles, forming a stable film. The film's mechanical properties, including tensile strength and Young's modulus, were high. It also showed reduced wettability and water solubility, enhancing water resistance. The biodegradability rate was 100 %. Antibacterial tests against Bacillus sp. and Pseudomonas sp. showed significant inhibition zones of 26 mm and 30 mm, respectively, demonstrating strong antibacterial effectiveness. The film's non-target toxicity was assessed through phytotoxicity experiments on Vigna angularis and soil nutrient evaluations, with no negative impact on plant growth or soil health observed. These results indicate that this nanocomposite is a safe, biocompatible option for food packaging.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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