Sustainable natural gums for industrial application: Physiochemical and texturometric evaluation

Ferreira, Susana Raquel dos Santos; Mesquita, Martha Vitória Norberto; Sá, Laisa Lis Fontinele de; Nogueira, Naiane Carvalho; Rizzo, Márcia dos Santos; Filho, Edson Cavalcanti da Silva; Costa, M. F.; Ribeiro, Alessandra Braga

doi:10.1016/j.jddst.2019.101306

Cited by 9 publications

(3 citation statements)

References 38 publications

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“…The second phase showed two maximum peaks with degradation temperature (T deg ) values of 262 • C and 310 • C, reporting a weight loss of 64% due to the depolymerization of cashew gum [16]. After these two major steps, a progressive weight loss of around 10% was observed starting from 325 • C. Similar results were described by Ferreira et al [57], who characterized cashew gum and chicha gum for applications in tablets and hydrogels production.…”

Section: Morphology Of the Fiber Mats Obtained With Multiple Emitters...supporting

confidence: 81%

On the Unique Morphology and Elastic Properties of Multi-Jet Electrospun Cashew Gum-Based Fiber Mats

Grumi,

Prieto,

Furtado

et al. 2024

Polymers

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This study investigates the unique morphology and mechanical properties of multi-jet electrospun cashew gum (CG) when combined with high-molecular-weight polyethylene oxide (PEO) and glycerol. Cashew gum (CG) is a low-cost, non-toxic heteropolysaccharide derived from Anacardium occidentale trees. Initially, the electrospinnability of aqueous solutions of cashew gum alone or in combination with PEO was evaluated. It was found that cashew gum alone was not suitable for electrospinning; thus, adding a small quantity of PEO was needed to create the necessary molecular entanglements for fiber formation. By using a single emitter with a CG:PEO ratio of 85:15, straight and smooth fibers with some defects were obtained. However, additional purification of the cashew gum solution was needed to produce more stable and defect-free straight and smooth fibers. Additionally, the inclusion of glycerol as a plasticizer was required to overcome material fragility. Interestingly, when the optimized formulation was electrospun using multiple simultaneous emitters, thicker aligned fiber bundles were achieved. Furthermore, the resulting oriented fiber mats exhibited unexpectedly high elongation at break under ambient conditions. These findings underscore the potential of this bio-polysaccharide-based formulation for non-direct water contact applications that demand elastic properties.

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Section: Morphology Of the Fiber Mats Obtained With Multiple Emitters...supporting

confidence: 81%

On the Unique Morphology and Elastic Properties of Multi-Jet Electrospun Cashew Gum-Based Fiber Mats

Grumi,

Prieto,

Furtado

et al. 2024

Polymers

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“…CG is an anionic polysaccharide with swelling power and can facilitate wound repair [36,68]. Mauritia flexuosa oil is rich in fatty acids, has an immunomodulatory character, acting as a chemotactic agent and an angiogenesis promoter, and may interfere with the inflammatory process [23][24][25][26][27][28][29][30][31][32]. It has already been observed that extra virgin olive oil, Moringa oleifera oil, and Melaleuca alternifolia oil have demonstrated promising efficacy in the treatment, healing, and closure of wounds through their anti-inflammatory, antioxidant, antimicrobial properties and by stimulating the angiogenic activities necessary for wound healing [72][73][74].…”

Section: Healing Activitymentioning

confidence: 99%

“…GC hydrogels have been developed and have shown firmness, consistency, and cohesiveness. The mucoadhesion of the CG hydrogel was superior to that of chitosan, being a promising polymer for mucoadhesive formulations [29,30].…”

Section: Introductionmentioning

confidence: 97%

Potential Wound Healing Effect of Gel Based on Chicha Gum, Chitosan, and Mauritia flexuosa Oil

et al. 2022

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Wounds are considered a clinically critical issue, and effective treatment will decrease complications, prevent chronic wound formation, and allow rapid healing. The development of products based on naturally occurring materials is an efficient approach to wound healing. Natural polysaccharides can mimic the extracellular matrix and promote cell growth, thus making them attractive for wound healing. In this context, the aim of this work was to produce a gel based on chicha gum, chitosan, and Mauritia flexuosa oil (CGCHO) for wound treatment. TG and DTG analyzed the thermal behavior of the materials, and SEM investigated the surface roughness. The percentages of total phenolic compounds, flavonoids, and antioxidants were determined, presenting a value of 81.811 ± 7.257 µmol gallic acid/g Mauritia flexuosa oil, 57.915 ± 0.305 µmol quercetin/g Mauritia flexuosa oil, and 0.379 mg/mL, respectively. The anti-inflammatory was determined, presenting a value of 10.35 ± 1.46% chicha gum, 16.86 ± 1.00% Mauritia flexuosa oil, 10.17 ± 1.05% CGCHO, and 15.53 ± 0.65% chitosan, respectively. The materials were tested against Gram-negative (Klebsiella pneumoniae) and Gram-positive (Staphylococcus aureus) bacteria and a fungus (Candida albicans). The CGCHO formulation showed better antimicrobial activity against Gram-positive bacteria. In addition, an in vivo wound healing study was also performed. After 21 days of treatment, the epidermal re-epithelialization process was observed. CGCHO showed good thermal stability and roughness that can help in cell growth and promote the tissue healing process. In addition to the good results observed for the antimicrobial, antioxidant, anti-inflammatory activities and providing wound healing, they provided the necessary support for the healing process, thus representing a new approach to the wound healing process.

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Guar Gum Nanocomposites: Green Corrosion Inhibitors of Iron‐Gall Ink on Paper Artworks

Afsharpour

Gilani

2021

Starch Stärke

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Iron-Gall ink corrosion in paper artworks has always been a major challenge for restorers. In this study, a novel green nanocomposite based on Guar gum that can be used as a protective coating to prevent corrosion induce by oxidation and the acid hydrolysis process is introduced. For this purpose, Guar gum/calcium hydroxide/Klucel nanocomposite is used as an effective coating to stabilize the iron on paper and slow down the deterioration process. Guar gum is used as a chelating agent for Fe(II), Ca(OH) 2 nanoparticles can deacidify the paper, and Klucel contributes to better dispersion of the nanoparticles and increase the mechanical strength of the paper and also can contribute to stabilizing Fe ions. This one-step process for consolidation, deacidification, and antioxidation is a good way to decrease the physical damage, especially to sensitive papers, and saves time and materials too. To monitor the treatment effects over time, accelerated aging is also studied. Results show the good protective effects of nanocomposite coatings on the paper which retains its strength even after thermal aging due to a decrease in the rate of oxidation and hydrolysis reactions.

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Sustainable natural gums for industrial application: Physiochemical and texturometric evaluation

Cited by 9 publications

References 38 publications

On the Unique Morphology and Elastic Properties of Multi-Jet Electrospun Cashew Gum-Based Fiber Mats

On the Unique Morphology and Elastic Properties of Multi-Jet Electrospun Cashew Gum-Based Fiber Mats

Potential Wound Healing Effect of Gel Based on Chicha Gum, Chitosan, and Mauritia flexuosa Oil

Guar Gum Nanocomposites: Green Corrosion Inhibitors of Iron‐Gall Ink on Paper Artworks

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