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Sodium alginate films incorporated with Lepidium sativum (Garden cress) extract as a novel method to enhancement the oxidative stability of edible oil.

Authors :
Alshehri, Azizah A.
Kamel, Reham M.
Gamal, Heba
Sakr, Hazem
Saleh, Mohamed N.
El-Bana, Mohamed
El-Dreny, El-Shahat Gomaa
El.Fadly, Enas
Abdin, Mohamed
Salama, Mohamed Abdelbaset
Elsayed, Mahmoud
Source :
International Journal of Biological Macromolecules. Apr2024:Part 1, Vol. 265, pN.PAG-N.PAG. 1p.
Publication Year :
2024

Abstract

This study addresses the growing interest in bio-based active food packaging by infusing Lepidium sativum (Garden cress) seeds extract (GRCE) into sodium alginate (SALG) films at varying concentrations (1, 3, and 5 %). The GRCE extract revealed six phenolic compounds, with gallic and chlorogenic acids being prominent, showcasing substantial total phenolic content (TPC) of 139.36 μg GAE/mg and total flavonoid content (TFC) of 26.46 μg RE/mg. The integration into SALG films significantly increased TPC, reaching 30.73 mg GAE/g in the film with 5 % GRCE. This enhancement extended to DPPH and ABTS activities, with notable rises to 66.47 and 70.12 %, respectively. Physical properties, including tensile strength, thickness, solubility, and moisture content, were positively affected. A reduction in water vapor permeability (WVP) was reported in the film enriched with 5 % GRCE (1.389 × 10−10 g H 2 O/m s p.a.). FT-IR analysis revealed bands indicating GRCE's physical interaction with the SALG matrix, with thermal stability of the films decreasing upon GRCE integration. SALG/GRCE5 effectively lowered the peroxide value (PV) of sunflower oil after four weeks at 50 °C compared to the control, with direct film-oil contact enhancing this reduction. Similar trends were observed in the K232 and K270 values. [Display omitted] [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01418130
Volume :
265
Database :
Academic Search Index
Journal :
International Journal of Biological Macromolecules
Publication Type :
Academic Journal
Accession number :
176587093
Full Text :
https://doi.org/10.1016/j.ijbiomac.2024.130949