Quality Boost and Shelf-Life Prolongation of African Catfish Fillet Using Lepidium sativum Mucilage Extract and Selenium Nanoparticles

Abstract

Aiming to boost the catfish fillet quality, the consequences of their treatment with Lepidium sativum seeds mucilage (LSSM) and with LSSM-mediated selenium nanoparticles (LSSM-Se NPs) were investigated. The LSSM assessment for phenolic acids contents emphasized higher concentrations. Green-synthesized Se NPs were conjugated with LSSM to form LSSM-Se NPs and characterized; the NPs had spherical shapes, negatively charged with 15.47 nm mean diameters. Fish fillets were immersed in coating solutions for 2 min, drained, and stored for 25 days at 4°C. The fish groups (C: untreated samples, M: LSSM-treated, and G: LSSM-Se NPs treated) were assessed for their physicochemical, bacteriological, and sensorial attributes. On the 25th day, the samples’ pH values were 6.96, 6.6, and 6.3; TVB-N values were 38.8, 28.4, and 16.4 mg/100 g; TBARS values were 1.7, 0.97, and 0.68 malondialdehyde/kg; and overall acceptability scores were 3.9, 5.6, and 8.3, for C, M and G groups, respectively. At day 16, the psychrophilic bacterial count was 6.2, 4.0, and 3.6 log CFU/g for C, M, and G groups, respectively. The application of LSSM and LSSM-Se NPs is recommended to compose active coatings for quality boost and shelf-life extension of stored catfish fillet.

Characterization and antimicrobial activity of a chitosan-selenium nanocomposite biosynthesized using Posidonia oceanica

“…Due to the enhanced antibacterial effect of SeNPs, the E group continued to be appropriate up to the end of the investigation. 62–64…”

“…These observations were formerly stated regarding Cht nanocomposites with phytocompounds and nanomaterials when they were applied as edible coatings for preserving diverse foodstuffs. 11,26,59,64,65 3.4.2. Sensory evaluation.…”

Fabrication of bioactive nanocomposites from chitosan, cress mucilage, and selenium nanoparticles with powerful antibacterial and anticancerous actions

“…The reduction/mediation of SeNPs with GCm was adopted from the recently described method (Shehab et al, 2022). Sodium selenite solution (Na2SeO 3 , 10 mM) in DW was prepared, then 20 mL of it was amalgamated with an equal volume of GCm solution (0.1%, w/v) and stirred (655 × g) for 90 min.…”

“…The encapsulation/stabilization of different nanometals (e.g., silver and selenium) within the GCm matrix was recently achieved to provide a more synergistic antimicrobial activity to the innovative composites (Haj Bloukh et al, 2021;Ibrahim et al, 2021;Shehab et al, 2022).…”

“…The conjugations of biosynthesized SeNPs within coating biopolymers/polysaccharides (e.g., chitosan, cellulose, cress extract, curcumin, etc.) were evidenced to provide them with much biosafety and effectuality as powerful antimicrobial agents, with low biotoxicity potentials (Abu-Elghait et al, 2021;Alghuthaymi et al, 2021;Gad et al, 2021;Shehab et al, 2022).…”