Eggshell valorised nanofiller loaded PVA/chitosan nanocomposite as eco-friendly packaging and nano-nutrient

Recent research focuses the Combined application of degradable packaging and economical approach of waste-to-value method. This work deal investigates the use of eggshell-derived Calcium Oxide (CaO) as a strengthening agent in PVA/Chitosan (PVA/Chi) composite films the resulting changes in their phy...

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Bibliographic Details
Published in:Food packaging and shelf life 2024-01, Vol.41, p.101239, Article 101239
Main Authors: Sree G, Vanthana, P, Nagaraaj
Format: Article
Language:English
Subjects:
Eggshell
Nanocomposite
Nanofiller
PVA/Chitosan
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Summary:Recent research focuses the Combined application of degradable packaging and economical approach of waste-to-value method. This work deal investigates the use of eggshell-derived Calcium Oxide (CaO) as a strengthening agent in PVA/Chitosan (PVA/Chi) composite films the resulting changes in their physicochemical properties and its impact on plant growth after disposal. The study examines water resistance, mechanical and thermal stability, and degrading features of the films based on the PVA/Chi ratio and CaO loading. The incorporation of nanofiller improves water resistance and strength with CaO loading upto 10 mg loading then declined by agglomeration. The optimal formulation is 1% PVA with 0.10% Chitosan and 10 mg of CaO loading. The study also investigates disposal and degradation issues with single-use plastic, focusing on direct solid and water dissolved disposal methods and the effects of dissolved composites on plant growth. Response surface methods are used to examine the relationship between parameters and their reactions to the film. [Display omitted] •Eggshell-derived calcium oxide is a sustainable and economical agent that serves a dually as a nanofiller and nanonutrient.•This packaging technology helps to minimize the polymer usage, through an easy, non-toxic, and cost-effective process.•PVA/chitosan/CaO is novel formulation for single use bag to reduce plastic pollution and prevents eggshell based pollution.•Incorporation of CaO improves the water barrier and mechanical properties of copolymer. Degradation efficiency and plant germination study also evidence the nontoxic nature with dual application of CaO NPs.
ISSN:2214-2894
2214-2894
DOI:10.1016/j.fpsl.2024.101239