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<p>The development of biodegradable packaging materials from renewable agricultural residues offers a sustainable alternative to synthetic plastics. This study presents the fabrication of cellulose-based composite films incorporating hemicellulose and lignin extracted from canola residue, highlighting the individual and synergistic effects of these biopolymers. The films were prepared by solution casting method and characterized using FTIR, XRD, SEM, DSC, tensile strength testing, water vapor permeability (WVP), opacity, antioxidant assays and soil burial biodegradation. The addition of lignin (6%) significantly improved tensile strength (from 46.61 ± 0.98 to 68.15 ± 0.57&#xa0;MPa) and reduced WVP (from 11.29 ± 0.02 to 7.06 ± 0.03&#xa0;g·mm/m²·day·kPa) and increased opacity due to its aromatic structure. The optimized formulation (3% hemicellulose + 6% lignin) exhibited balanced performance, including high tensile strength (49.18 ± 0.59&#xa0;MPa), low WVP (6.04 ± 0.02&#xa0;g·mm/m²·day·kPa), and rapid biodegradation (90% mass loss within 14 days). This work is novel in systematically evaluating the individual and synergistic contributions of hemicellulose and lignin to cellulose-based films while valorizing canola residue as a multi-functional biopolymer source. The findings demonstrate the potential of these composite films as sustainable food packaging materials with improved barrier, mechanical, and degradability properties.</p>

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Fabrication of biodegradable composite packaging films from cellulose, hemicellulose and lignin extracted from canola residue

  • 期刊论文

  • 发表日期：

    2025年12月10日

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  • Sharmeen Arif,
  • Abid Aslam Maan,
  • Rana Muhammad Aadil,
  • Muhammad Kashif Iqbal Khan,
  • Akmal Nazir

摘要

The development of biodegradable packaging materials from renewable agricultural residues offers a sustainable alternative to synthetic plastics. This study presents the fabrication of cellulose-based composite films incorporating hemicellulose and lignin extracted from canola residue, highlighting the individual and synergistic effects of these biopolymers. The films were prepared by solution casting method and characterized using FTIR, XRD, SEM, DSC, tensile strength testing, water vapor permeability (WVP), opacity, antioxidant assays and soil burial biodegradation. The addition of lignin (6%) significantly improved tensile strength (from 46.61 ± 0.98 to 68.15 ± 0.57 MPa) and reduced WVP (from 11.29 ± 0.02 to 7.06 ± 0.03 g·mm/m²·day·kPa) and increased opacity due to its aromatic structure. The optimized formulation (3% hemicellulose + 6% lignin) exhibited balanced performance, including high tensile strength (49.18 ± 0.59 MPa), low WVP (6.04 ± 0.02 g·mm/m²·day·kPa), and rapid biodegradation (90% mass loss within 14 days). This work is novel in systematically evaluating the individual and synergistic contributions of hemicellulose and lignin to cellulose-based films while valorizing canola residue as a multi-functional biopolymer source. The findings demonstrate the potential of these composite films as sustainable food packaging materials with improved barrier, mechanical, and degradability properties.