Silver-sepiolite (Ag-Sep) hybrid reinforced active gelatin/date waste extract (DSWE) blend composite films for food packaging application

Vengatesan M. Rangaraj, Subramani Devaraju, K. Rambabu, Fawzi Banat, Vikas Mittal

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

In this study, date syrup waste extract (DSWE) (15 wt%) and different content of silver doped sepiolite hybrid (Ag-Sep, 0.25–3 wt%) were incorporated into gelatin matrix to develop a series of active composite packaging films. Incorporating 2 wt% of Ag-Sep increased the modulus of blend film by 98% compared to unmodified gelatin/DSWE blend film. The active gelatin composite film exhibited superior active compounds migration to aqueous food simulants. Besides, Ag-Sep provided a tortuous pathway to the composite film, resulting in high 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical inhibition efficiency (91%) and slow-release kinetics of active compounds to the food simulant. The Ag-Sep hybrid was improved the antimicrobial property of the gelatin/DSWE blend film against both gram-negative and gram-positive microbes. Thus, this study demonstrated that the Ag-Sep hybrid exhibits significant properties in the active gelatin composite films, implying that this hybrid could be an effective additive for various active packaging films.

Original languageBritish English
Article number130983
JournalFood Chemistry
Volume369
DOIs
StatePublished - 1 Feb 2022

Keywords

  • Antimicrobial
  • Antioxidant
  • Date fruit waste extract
  • Edible food packaging
  • Silver doped sepiolite

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