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

Autor: AbdulRasheed-Adeleke T; Department of Biochemistry, Federal University of Technology P.M.B. 65, Minna 920001, Niger State, Nigeria., Egwim EC; Department of Biochemistry, Federal University of Technology P.M.B. 65, Minna 920001, Niger State, Nigeria.; Africa Centre of Excellence (ACE) for Mycotoxin and Food Safety, Federal University of Technology, P.M.B. 65, Minna 920001, Niger State, Nigeria., Sadiku ER; Department of Chemical, Metallurgical and Materials Engineering, Polymer Division, Pretoria West Campus 0183, Tshwane University of Technology, Pretoria 0183, South Africa., Ochigbo SS; Department of Chemistry, Federal University of Technology, P.M.B. 65, Minna 920001, Niger State, Nigeria.
Jazyk: angličtina
Zdroj: Molecules (Basel, Switzerland) [Molecules] 2022 Nov 09; Vol. 27 (22). Date of Electronic Publication: 2022 Nov 09.
DOI: 10.3390/molecules27227708
Abstrakt: 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 ( MAB ), tensile strength ( TS ), percent elongation (PE) and Young's modulus ( YM ) 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 ( R 2 ) 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 MAB , TS , YM and PE 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.
Databáze: MEDLINE
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