A biodegradable film based on carrageenan gum/Plantago psyllium mucilage/red beet extract: physicochemical properties, biodegradability and water absorption kinetic

Daei, Shokufe; Mohtarami, Forogh; Pirsa, Sajad

doi:10.1007/s00289-021-04067-0

Cited by 49 publications

(28 citation statements)

References 50 publications

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“…On the other hand, EB increased with BPE concentrations until reaching 91.1% when adding 4-BPE ( Table 1 ). Similar trends were observed in carrageenan-gum-based films using beetroot extract [ 49 ]. Our results were higher than those obtained by Bitencourt et al [ 70 ] (25.7%) when they tested the EB of the gelatin-based film (2% w / v ) with Curcuma ethanolic extract.…”

Section: Resultssupporting

confidence: 81%

“…Due to its outstanding film-forming abilities and high biodegradability, gelatin has been frequently used [ 73 ]. In addition, Daei et al [ 49 ] reported that the addition of beetroot extract could reduce the biodegradability time. Accordingly, the highest degradability was related to the film samples including the highest amount of beet extract [ 49 ].…”

Section: Resultsmentioning

confidence: 99%

“…As reported by Daei et al [ 49 ], different film samples were cut into small portions (2 × 2 cm), weighted, and submerged in water for two minutes. The samples were weighted again (W2) after further soaking.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Novel Active Food Packaging Films Based on Gelatin-Sodium Alginate Containing Beetroot Peel Extract

et al. 2022

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Currently, the exploration of natural colorants from vegetal waste has gained particular attention. Furthermore, incorporation of these natural sources into biopolymers is an encouraging environmentally friendly approach to establishing active films with biological activities for food packaging. The present study developed bioactive antioxidant films based on gelatin-sodium alginate (NaAlg) incorporated with aqueous beetroot peel extract (BPE). Firstly, the effects of combining gelatin-NaAlg and BPE at 0.25, 0.5, and 1% on the mechanical, physical, antioxidant, and antibacterial properties of the films were analyzed. With increasing BPE, mechanico-physical properties and antioxidant and anti-foodborne pathogen capacities were enhanced. Likewise, when added to gelatin-NaAlg films, BPE remarkably increased the instrumental color properties. Moreover, during 14 days of storage at 4 °C, the impact of gelatin-NaAlg coating impregnated with BPE on microbial and chemical oxidation and on the sensory characteristics of beef meat samples was periodically assessed. Interestingly, by the end of the storage, BPE at 1% limited the microbial deterioration, enhanced the instrumental color, delayed chemical oxidation, and improved sensory traits. By practicing chemometrics tools (principal component analysis and heat maps), all data provided valuable information for categorizing all samples regarding microbiological and oxidative properties, sensory features, and instrumental color. Our findings revealed the ability of gelatin-NaAlg with BPE as an antioxidant to be employed as food packaging for meat preservation.

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Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

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Novel Active Food Packaging Films Based on Gelatin-Sodium Alginate Containing Beetroot Peel Extract

et al. 2022

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“…It indicates that the biodegradation increased by decreasing the amount of crosslinker and keeping in range the amount of plasticizer, i.e., by increasing or by decreasing beyond the significant limit the rate of biodegradation decreases. This was due to the different number of polymer units formed after the initiation that bonded together by the action crosslinker and less amount of plasticizer causes the film to brittle structure causes less amount of water molecules to diffuse into the hydrogel film structure and if more amount of plasticizer causes the film to a more elastic and jelly structure which opposes the water interaction and decreases the rate of biodegradability [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

“…is was due to the different number of polymer units formed after the initiation that bonded together by the action crosslinker and less amount of plasticizer causes the film to brittle structure causes less amount of water molecules to diffuse into the hydrogel film structure and if more amount of plasticizer causes the film to a more elastic and jelly structure which opposes the water interaction and decreases the rate of biodegradability [35].…”

Section: Impact Of Operating Parameters On the Film's Propertiesmentioning

confidence: 99%

[Retracted] Process Optimization for Development of Guar Gum‐Based Biodegradable Hydrogel Film Using Response Surface Methodology

Aman

Shahi

Lohani

et al. 2022

Bioinorganic Chemistry and Applications

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In the current study, a guar-gum-based biodegradable hydrogel film was prepared using an initiator (potassium persulfate), crosslinker (N-N methyl bis acrylamide), and plasticizer (glycerol) for packaging of fruits and vegetables. The effect of independent variables (initiator, crosslinker, and plasticizer) on the biodegradation (% wt. loss), color difference (ΔE), hardness (N), swelling index (%), and transparency (%) of the film was studied using Box–Behnken design, random surface methodology (RSM). The results showed significant effects on all the abovementioned parameters, and it was observed that the developed model was accurate, with a prediction error of only −3.19 to 2.99%. The optimized formulation for the preparation of hydrogel film was 0.15% initiator, 0.02% crosslinker, and 2.88% plasticizer exhibiting satisfactory biodegradability, color difference, hardness, swelling index, and transparency. Results showed that a guar-gum-based biodegradable hydrogel film has adequate physical, optical, and biodegradable properties and can be successfully utilized in the food packaging industry.

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Flexible, chemically bonded bismuth/tungsten‐based polyvinyl alcohol‐polyvinyl pyrrolidone composite for gamma and neutron shielding application

Bijanu,

Arya,

Rajak

et al. 2024

J of Applied Polymer Sci

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In this paper, the gamma and neutron shielding behavior of chemically bonded high atomic number (Z), tungsten trioxide‐polyvinyl alcohol‐polyvinylpyrrolidone (PW), and bismuth oxide‐polyvinyl alcohol‐polyvinylpyrrolidone (PB) composites were reported at varying thickness. The PW and PB composites were prepared through the dissolution technique rather than the commonly used dispersion technique. The gamma and neutron attenuation characteristics of the composites were studied using 22Na (0.511 and 1.274 MeV energy) and 252Cf (0–10 MeV energy) sources, respectively. The half value layer of PW and PB composite was found to be 61.22 ± 0.914 mm and 48.29 ± 1.52 mm and the linear attenuation coefficient was found to be 0.115 and 0.144 cm−1 at 0.511 MeV, respectively. Further, the experimental gamma‐ray attenuation results were validated theoretically using Phy‐X software and found to be well in agreement with the experimental data. Both the composites also showed similar neutron shielding behavior when compared to the commercially used high‐density polyethylene (HDPE). The developed composites possess good mechanical properties as they did not show any cracks or wrinkles after undergoing 5400 bending cycles during the flex test, showing their high durability of flexibility. Thus, these composites are found to be suitable for shielding both, the gamma‐rays and neutrons.

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A biodegradable film based on carrageenan gum/Plantago psyllium mucilage/red beet extract: physicochemical properties, biodegradability and water absorption kinetic

Cited by 49 publications

References 50 publications

Novel Active Food Packaging Films Based on Gelatin-Sodium Alginate Containing Beetroot Peel Extract

Novel Active Food Packaging Films Based on Gelatin-Sodium Alginate Containing Beetroot Peel Extract

[Retracted] Process Optimization for Development of Guar Gum‐Based Biodegradable Hydrogel Film Using Response Surface Methodology

Flexible, chemically bonded bismuth/tungsten‐based polyvinyl alcohol‐polyvinyl pyrrolidone composite for gamma and neutron shielding application

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