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<p>The development of biodegradable polymers presents a promising solution to the environmental challenges posed by non-biodegradable, petroleum-based plastics. This study investigated the development of sustainable and bioactive packaging films based on gelatin and pectin, incorporating date syrup as a natural antioxidant. Date syrup, a readily available and cost-effective by-product of date palm cultivation, was characterized by LC-HESI-MS and found to be rich in phenolic compounds, with gentisic acid identified as a major compound. Six film formulations with varying date syrup concentrations (1—10%) were prepared and evaluated. The incorporation of date syrup significantly (p &lt; 0.05) improved the water resistance of the films by reducing moisture content and solubility. Notably, films with higher date syrup content exhibited a significant increase in total phenolic content (up to 8.61 mg GAE/100 g film). They showed enhanced free radical scavenging activity against DPPH and ABTS radicals. Furthermore, the films exhibited antimicrobial activity against both Gram-positive and Gram-negative bacteria. To assess practical application, the films were used to wrap “Bsissa” dough, a savoury, flavorful traditional North African snack. The results demonstrated that wrapping with date syrup-enriched films significantly improved the physicochemical and microbial stability of the “Bsissa” dough during storage. This study provides compelling evidence for the potential of date syrup as a valuable natural additive for enhancing the functionality of bio-based packaging films. By leveraging the antioxidant and antimicrobial properties of date syrup, these films offer a promising alternative to conventional petroleum-based plastics, thereby contributing to a more sustainable, eco-friendly food packaging system.</p>

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Date palm by-product as natural additive for eco-friendly food packaging: a sustainable approach for the preservation of a traditional mediterranean cereal snack

  • 期刊论文

  • 发表日期：

    2026年5月12日

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  • Malek Ben Temessek,
  • Olfa Rebai,
  • Maria Sulli,
  • Gianfranco Diretto,
  • Sami Fattouch

摘要

The development of biodegradable polymers presents a promising solution to the environmental challenges posed by non-biodegradable, petroleum-based plastics. This study investigated the development of sustainable and bioactive packaging films based on gelatin and pectin, incorporating date syrup as a natural antioxidant. Date syrup, a readily available and cost-effective by-product of date palm cultivation, was characterized by LC-HESI-MS and found to be rich in phenolic compounds, with gentisic acid identified as a major compound. Six film formulations with varying date syrup concentrations (1—10%) were prepared and evaluated. The incorporation of date syrup significantly (p < 0.05) improved the water resistance of the films by reducing moisture content and solubility. Notably, films with higher date syrup content exhibited a significant increase in total phenolic content (up to 8.61 mg GAE/100 g film). They showed enhanced free radical scavenging activity against DPPH and ABTS radicals. Furthermore, the films exhibited antimicrobial activity against both Gram-positive and Gram-negative bacteria. To assess practical application, the films were used to wrap “Bsissa” dough, a savoury, flavorful traditional North African snack. The results demonstrated that wrapping with date syrup-enriched films significantly improved the physicochemical and microbial stability of the “Bsissa” dough during storage. This study provides compelling evidence for the potential of date syrup as a valuable natural additive for enhancing the functionality of bio-based packaging films. By leveraging the antioxidant and antimicrobial properties of date syrup, these films offer a promising alternative to conventional petroleum-based plastics, thereby contributing to a more sustainable, eco-friendly food packaging system.