Development of sodium alginate-based antioxidant and antibacterial bioactive films added with IRMOF-3/Carvacrol. (15th September 2022)

• Record Type: Journal Article
• Authors: Ning, Haoyue; Lu, Lixin; Xu, Jing; Lu, Lijing; Pan, Liao; Lin, Zidong
• Is Part Of: Carbohydrate polymers. Volume 292(2022)
• Publication Date: 2022-09-15
• Subjects: Sodium alginate -- IRMOF-3 -- Carvacrol -- Antioxidant -- Antibacterial -- Active packaging; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2022.119682
• Languages: English
• ISSNs: 0144-8617

Abstract

Abstract: The purpose of this study was to compare the effects of different concentrations of the amine-functionalized isoreticular metal-organic framework-3 loaded with carvacrol (IRMOF-3/CA) on the properties of sodium alginate (SA) composite films, thus determining the optimal addition amount and further preparing bioactive packaging film with antibacterial and antioxidant activities. The morphology, structure, physical properties, antioxidant and antibacterial activities of the films were characterized and analyzed. The results showed that the thermal stability and light barrier property of the films were improved by the addition of IRMOF-3/CA. When the additional concentration was 0.4 wt%, the tensile, water vapor barrier and hydrophobic properties of the films were increased by 30.13%, 9.06% and 46.43% respectively compared with those of pure SA film. Moreover, the film added with IRMOF-3/CA had sustained antioxidant and antibacterial activities, and had an apparent fresh-keeping effect on pork, suggesting its application potential in food packaging. Graphical abstract: Unlabelled Image Highlights: SA-based composite active films added with IRMOF-3/CA have been successfully developed. The tensile, water vapor barrier and hydrophobic properties of the composite film with 0.4 wt% IRMOF-3/CA have been improved. The composite film added with IRMOF-3/CA showed excellent UV barrier performance. The composite active film SMC2 had significant antioxidant and antibacterial activity and showed good preservation effect.