Effect of gamma irradiation on physico‐mechanical and structural properties of active Farsi gum‐CMC films containingZiziphora clinopodioidesessential oil and lignocellulose nanofibers for meat packaging

Abstract

The objective of this study was to examine the effect of gamma irradiation (0, 2.5, and 5 kGy) on physico-mechanical and structural characteristics of films based on Farsi gum-carboxymethyl cellulose supplemented with Ziziphora clinopodioides essential oil (ZEO; 0%, 1%, and 2%) and lignocellulose nanofibers (LCNF; 0%, 1%, and 2%), and their application on fresh minced beef meat's shelf-life during refrigerated temperature (4 ± 1°C) for 16 days. Gamma irradiation under the 60 Co source at 2.5 and 5 kGy doses did not have a significant effect on thickness, tensile strength, swelling index, oxygen permeability, and water vapor transmission rate of prepared films (P > 0.05). The best microbiological (total viable count, psychrotrophic bacterial count, Pseudomonas spp., Brochothrix thermosphacta, lactic acid bacteria, and Enterobacteriaceae) and chemical (thiobarbituric acid reactive substances, total volatile base nitrogen content, and peroxide value) properties were recorded for samples packaged with ZEO 2% + LCNF 2%, followed by ZEO 2% + LCNF 1%, ZEO 1% + LCNF 2%, and ZEO 1% + LCNF 1%. These results indicate acceptable extensions of hurdle technology for prolonged refrigeration of minced beef meat.

Fabrication and application of functional active packaging material based on carbohydrate biopolymers formulated withLemon verbena/Ferulago angulataextracts for the preservation of raw chicken meat

“…They concluded incorporation of ZG into polyvinyl alcohol leads to remarkable alteration in the intensity and position of the peaks, which demonstrates appropriate mixing between the two polymers (Razmjoo et al, 2021). Bahari et al (2020) assess the impact of gamma irradiation on physico‐mechanical features of farsi gum‐CMC films containing Ziziphora clinopodioides essential oil and lignocellulose nanofibers for meat packaging (Bahari et al, 2020).…”

Metal-coordination synthesis of a natural injectable photoactive hydrogel with antibacterial and blood-aggregating functions for cancer thermotherapy and mild-heating wound repair

“…It was observed that the broad characteristic peak at 20.61°for FG indicated a semi-crystalline microstructure. 74 The XRD pattern of Alg showed two characteristic broad diffraction peaks at 14.05°and 22.01°, indicating the semicrystalline structure of Alg. 75 The XRD diffraction peak of FG shifted from 20.61°to 21.16°, 21.56°, 21.56°, and 22.56°in FG-Fe, Gel, Gel-BiH, and Gel-BiH-Alla hydrogels, respectively, indicating the formation of metal-coordination bonds.…”

Design and application of self-healable polymeric films and coatings for smart food packaging

“…For example, CS films incorporated with Cinnamodendron dinisii Schwanke essential oil-loaded zein have been reported to successfully stabilize the deterioration reactions in ground beef 94 . Farsi gum-CMC films containing Ziziphora clinopodioides essential oil and lignocellulose nanofibers have also been exploited as packaging materials to extend the shelf life of fresh minced beef meat 95 . Although these packaging materials are not self-healable films and coatings, their success in packaging food products other than vegetables and fruits implicates the worth of exploiting the packaging performance of self-healable materials beyond mere fruit and vegetable preservation.…”