Production and evaluation of the chemical and mechanical properties of nanocellulose and nanowood starch‐based biodegradable films potential candidates for moisture absorbers for food packaging

Production and evaluation of the chemical and mechanical properties of nanocellulose and nanowood starch‐based biodegradable films potential candidates for moisture absorbers for food packaging

This study was conducted to prepare starch‐based moisture absorbent pads from nanocellulose (NC) and nanowood (NW) particles using solution casting evaporation method and to evaluate their physical and mechanical properties at different thicknesses. The swelling degree (SD), water vapor permeability...

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Bibliographic Details
Published in:Food science & nutrition Vol. 9; no. 4; pp. 2227 - 2233
Main Authors: Ebadi, Zahra, Ghaisari, Hamidreza, Tajeddin, Behjat, Shekarforoush, Seyed Shahram
Format: Journal Article
Language:English
Published: United States John Wiley & Sons, Inc 01-04-2021
John Wiley and Sons Inc
Subjects:
Biodegradability
biodegradable films
Biodegradation
Biofilms
Biopolymers
Cellulose
Elongated structure
Evaluation
Evaporation
Food
Food packaging
Glycerol
Humidity
Mechanical properties
Moisture
moisture‐absorbent pad
nanocellulose
nanowood
Nitrates
Original Research
Permeability
Physical properties
Polyethylene
Polymers
Scanning electron microscopy
Starch
Statistical analysis
Tensile strength
Thickness
Water vapor
Germany
biodegradable films
nanocellulose
moisture‐absorbent pad
nanowood
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Summary:This study was conducted to prepare starch‐based moisture absorbent pads from nanocellulose (NC) and nanowood (NW) particles using solution casting evaporation method and to evaluate their physical and mechanical properties at different thicknesses. The swelling degree (SD), water vapor permeability (WVP), tensile strength (TS), and elongation at break (EB), of prepared biofilms were measured. Structural properties of biofilms were evaluated by X‐ray diffraction (XRD) and scanning electron microscopy (SEM). Results indicated that two types of biopolymers showed the highest level of SD at thicknesses lower than 100 µm. The highest level of SD in the lowest time belonged to nanowood biofilm. Nanowood biofilms also showed highest WVP at lower thicknesses. Due to the highest EB and the lowest TS values, improvement was observed in mechanical properties of both nano biofilms. The high hydration capacity and WVP of low‐thickness NW films make it a promising candidate for developing biodegradable films with the potential to be used as a moisture‐absorbing pad in active food packaging. This study was conducted to prepare starch‐based moisture absorbent pads from nano cellulose and nanowood particles using solution casting evaporation method. Nano wood film is suitable candidate for the production of degradable films with the potential to be used as a moisture absorbing pad in active food packaging.
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ISSN:2048-7177
2048-7177
DOI:10.1002/fsn3.2194