Exploration of multifunctional properties of garlic skin derived cellulose nanocrystals and extracts incorporated chitosan biocomposite films for active packaging application

Mohamed Hamid Salim, Zineb Kassab, Youness Abdellaoui, Ariel García - Cruz, Abdoulaye Soumare, El houssaine Ablouh, Mounir El Achaby

    Research output: Contribution to journalArticlepeer-review

    31 Scopus citations

    Abstract

    For many years, garlic has been used as a condiment in food and traditional medicine. However, the garlic skin, which accounts for 25% of the garlic bulk, is considered agricultural waste. In this study, cellulose nanocrystals (CNCs) and garlic extract (GE) from garlic skin were isolated and used as fillers to manufacture biocomposite films. The films were characterized in terms of UV barrier, thermal, mechanical, biodegradability, and antimicrobial activity. The chitosan-containing films and CNCs have significantly improved the films' tensile strength, Young's modulus, and elongation but decreased the film transparency compared to chitosan films. The combination of the CNCs and GE, on the other hand, slightly reduced the mechanical properties. The addition of CNCs slightly decreased the film transparency, while the addition of GE significantly improved the UV barrier properties. Thermal studies revealed that the incorporation of CNC and GE had minimal effect on the thermal stability of the chitosan films. The degradability rate of the chitosan composite films was found to be higher than that of the neat chitosan films. The antimicrobial properties of films were studied against Escherichia coli, Streptomyces griseorubens, Streptomyces alboviridis, and Staphylococcus aureus, observing that their growth was considerably inhibited by the addition of GE in composite films. Films incorporating both CNCs and GE from garlic skin hold more promise for active food packaging applications due to a combination of enhanced physical characteristics and antibacterial activity.

    Original languageBritish English
    Pages (from-to)639-653
    Number of pages15
    JournalInternational Journal of Biological Macromolecules
    Volume210
    DOIs
    StatePublished - 15 Jun 2022

    Keywords

    • Antibacterial
    • Cellulose Nanocrystals
    • Garlic skin

    Fingerprint

    Dive into the research topics of 'Exploration of multifunctional properties of garlic skin derived cellulose nanocrystals and extracts incorporated chitosan biocomposite films for active packaging application'. Together they form a unique fingerprint.

    Cite this