Optimization of Lignin-Cellulose Nanofiber-Filled Thermoplastic Starch Composite Film Production for Potential Application in Food Packaging

The optimization of the production of thermoplastic starch (TPS) bionanocomposite films for their potential application in food packaging was carried out, according to the Box-Wilson Central Composite Design (CCD) with one center point, using Response Surface Methodology (RSM) and fillers based on l...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2022-11, Vol.27 (22), p.7708
Main Authors: AbdulRasheed-Adeleke, Tawakaltu, Egwim, Evans Chidi, Sadiku, Emmanuel Rotimi, Ochigbo, Stephen Shaibu
Format: Article
Language:English
Subjects:
Absorption
Alcohol
Bioplastics
Cellulose
Cellulose fibers
cellulose nanofiber
Contact angle
Elongation
Fillers
Food
Food Packaging
Food preservation
Lignin
Mechanical properties
Modulus of elasticity
Morphology
Motion picture industry
nanocomposite
Nanocomposites
Nanofibers
Objective function
Optimization
Packaging
Packaging materials
percent elongation
Polymers
Response surface methodology
Spectrum analysis
Starch
Tensile strength
Thermoplastics
Variance analysis
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Summary:The optimization of the production of thermoplastic starch (TPS) bionanocomposite films for their potential application in food packaging was carried out, according to the Box-Wilson Central Composite Design (CCD) with one center point, using Response Surface Methodology (RSM) and fillers based on lignin and nanofiber, which were derived from bamboo plant. The effects of the fillers on the moisture absorption ( ), tensile strength ( ), percent elongation (PE) and Young's modulus ( ) of the produced films were statistically examined. The obtained results showed that the nanocomposite films were best fitted by a quadratic regression model with a high coefficient of determination ( ) value. The film identified to be optimum has a desirability of 76.80%, which is close to the objective function, and contained 4.81 wt. % lignin and 5.00 wt. % nanofiber. The , , and of the identified film were 17.80%, 21.51 MPa, 25.76 MPa and 48.81%, respectively. The addition of lignin and cellulose nanofiber to starch composite was found to have reduced the moisture-absorption tendency significantly and increased the mechanical properties of the films due to the good filler/matrix interfacial adhesion. Overall, the results suggested that the produced films would be suitable for application as packaging materials for food preservation.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27227708