Lignocellulosic fibre extraction from hazelnut shells and utilisation of the extracted fibre as filler in chitosan-based biodegradable packaging films
International Journal of Food Science and Technology, vol.61, no.2, 2026 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 61 Issue: 2
- Publication Date: 2026
- Doi Number: 10.1093/ijfood/vvag200
- Journal Name: International Journal of Food Science and Technology
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, Compendex, Food Science & Technology Abstracts, INSPEC, Directory of Open Access Journals, Academic Search Ultimate (EBSCO), Natural Science Collection (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Keywords: chitosan, hazelnut shell, lignocellulosic fibre, optimisation, waste utilisation
- Süleyman Demirel University Affiliated: Yes
Abstract
This study investigated the utilisation of hazelnut shells-derived lignocellulosic fibres as fillers in biodegradable chitosan-based films. The optimal extraction conditions for lignocellulosic fibres were identified by employing a Box–Behnken design and response surface methodology. Both untreated hazelnut shell and alkali-extracted lignocellulosic fibres (EF) were incorporated into chitosan-based films at concentrations of 1%, 5%, 10%, and 20% (wt/wt). The effects of these fillers on film properties including water vapour permeability, optical characteristics, mechanical strength, thermal stability, antimicrobial activity and morphology were systematically assessed. A positive correlation between filler concentration, film thickness and opacity was observed, with a significant reduction in water vapour permeability (p < .05). Thermal stability was improved with 1% EF filler, and intrinsic antimicrobial activity of chitosan films was observed. This study highlighted the potential of hazelnut shell-derived lignocellulosic fibres as fillers for chitosan-based films, demonstrating the feasibility of valorising agricultural waste for food packaging applications.