The present study was designed to evaluate the effects of chitosan edible coating applications on the sensory, physicochemical, and bacterial load on chicken during thawing. Edible coatings prepared with 0.5 &1% chitosan in acetic acid (0.5%), was used as thawing solution.The frozen chicken was submerged for 2 hrs in tap water as control, 0.5 &1% chitosan treatments. Chitosan 1% coating improves tenderness and in turn overall acceptability scores. The result of shear force analysis emphasized the tenderness sensory scores of cooked broilers. Application of chitosan coat reduces pH value, APC, Psychrotrophic count, with significant (p<0.05) reduction in thawed broilers with 1% chitosan coat. Therefore, commercial chitosan can be applied in water thawing of frozen broiler to improve the quality characteristics economically. The results demonstrate that the application of chitosan can be an effective method for reducing contamination in chicken meat during thawing.
Eliminating hazardous contaminants is a necessity for maintaining a healthy environment on Earth. This work used a sustainable method to create Iron–Zinc nanocomposites with polyvinyl alcohol assistance. Mentha Piperita (mint leaf) extract was used as a reductant in the green synthesis of bimetallic nanocomposites. Doping with Poly Vinyl Alcohol (PVA) caused a reduction in crystallite size and greater lattice parameters. XRD, FTIR, EDS, and SEM techniques were used to establish their surface morphology and structural characterization. The high-performance nanocomposites were used to remove malachite green (MG) dye using the ultrasonic adsorption technique. Adsorption experiments were designed by central composite design and optimized by response surface methodology. According to this study, 77.87% of the dye was removed at the optimum optimized parameters (10.0 mg L−1 was the concentration of MG dye at a time of 8.0 min, pH 9.0, and 0.02 g of adsorbent amount) with adsorption capacity up to 92.59 mg·g−1. The dye adsorption followed Freundlich’s isotherm model and the pseudo-second-order kinetic model. Thermodynamic analysis affirmed the spontaneous nature of adsorption due to negative ΔGo values. As a result, the suggested approach offers a framework for creating an effective and affordable technique to remove the dye from a simulated wastewater system for environmental conservation.
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