Mineralized calcium carbonate/xanthan gum microspheres for lysozyme adsorption

Xu, Wei; Lou, Yucui; Xu, Bin; Li, Yingying; Xiong, Yongzhao; Jing, Junxiang

doi:10.1016/j.ijbiomac.2018.09.041

Cited by 12 publications

(4 citation statements)

References 31 publications

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“…It should be mentioned that the reduction in acetyl content could enhance the availability of carboxylic groups (–COO) through xanthan gum structure, which could facilitate electrostatic interactions of deprotonated carboxylic groups (–COO − ) with positively charged groups. Therefore, reduced acetyl content could favor the application of xanthan gum in the adsorption of compounds in enzyme immobilization, purification or organic compounds and wastewater treatment 20–22 …”

Section: Resultsmentioning

confidence: 99%

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Preparation and characterization of hydrogel from deacetylated xanthan gum produced by Xanthomonas arboricola pv pruni 106

Molon

Gonçalves

Ribeiro

et al. 2022

J of Applied Polymer Sci

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Xanthan gum is a water-soluble polysaccharide obtained by fermentation of the genus Xanthomonas with several properties, such as low-cost, biodegradability, biocompatibility and non-toxicity. However, an important limitation of xanthan gum-based biomaterials is the high swelling degree in solvent and the mechanical weakness, which results in biomaterial disintegration. For this reason, the aim of this work was to develop a hydrogel with reduced swelling degree. The xanthan gum produced by X. arboricola pv pruni 106 achieved a volumetric yield of 10.78 ± 0.27 g L À1 . The content of acetyl group was relatively low, around 1.33%, which the deacetylation process reduced its level to 0.8%. The hydrogel was produced using deacetylated xanthan gum and glutaraldehyde as crosslinker. The xanthan gumbased hydrogel has shown lower swelling degree and higher apparent viscosity, overcoming the initial drawbacks of the xanthan gum in its nature form. Overall, the xanthan gum-based hydrogel has remained stable during the whole storage conditions.

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Section: Resultsmentioning

confidence: 99%

“…Therefore, reduced acetyl content could favor the application of xanthan gum in the adsorption of compounds in enzyme immobilization, purification or organic compounds and wastewater treatment. [20][21][22] 2.3 | Fourier transform infrared (FTIR)…”

Section: Acetyl and Pyruvate Contentsmentioning

confidence: 99%

Preparation and characterization of hydrogel from deacetylated xanthan gum produced by Xanthomonas arboricola pv pruni 106

Molon

Gonçalves

Ribeiro

et al. 2022

J of Applied Polymer Sci

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show abstract

“…Other solution chemistry controlling means, such as solution concentration, pH, temperature, and reaction time, can also guide the growth of minerals. [94,[157][158][159][160]…”

Section: Gel-mediated Strategymentioning

confidence: 99%

Understanding Hierarchical Structure Construction Strategies and Biomimetic Design Principles: A Review

et al. 2023

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Organisms use gene and cell engineering to tailor the mineralization process and synthesize structure composites with special functions and favorable properties. This spurs scientists to design functional materials based on learning from nature. Herein, a systematic review of the biomimetic synthesis and hierarchical structure design of calcium carbonate–based minerals is presented. First, biomimetic synthesis strategies, including additive‐induced, template‐oriented, and gel‐mediated routes to direct the construction of the hierarchical structure, are reviewed. The molecular‐recognition technique and directional assembly pathway are then summarized to precisely describe the interactions between inorganic minerals and organic matter, and direct the mineral growth. Next, the underlying mineralization mechanisms governing the evolution of the complex morphology and structure are discussed. Nonclassical pathways that control mineral growth, including the theories of the amorphous phase, oriented attachment, mesocrystal formation, and liquid precursor, are concluded. Finally, herein, the applications of calcium carbonate–based minerals are discussed. Unique hierarchical structure endows minerals with special functions, including optical performance, biomedical applications, and environmental and ecological restoration. Overall, in this report, the biomimetic synthesis of calcium carbonate–based minerals is reviewed, covering the fundamental principles, construction of the hierarchical structure, underlying mechanisms of mineral growth, and functional designs.

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“…The World Health Organization (WHO) states that leaks from underground fuel storage tanks into ground water are the most likely cause of BTEX pollution in the environment [3]. BTEX testing services, the most frequent ways to be exposed to BTEX compounds is by breathing contaminated air, especially in regions near petrol stations, in locations with high levels of automobile traffic, and when smoking cigarettes.…”

Section: Introductionmentioning

confidence: 99%

Removal of BTEX (Benzene, Toluene, Ethyl benzene and Xylene) from aqueous solutions using surface-modified zeolite

2022

Global NEST: The International Journal

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<p>BTEX, also known as benzene, toluene, ethyl benzene, and xylene, is a common gasoline oxygenate. The contamination of groundwater and surface water with BTEX and its primary breakdown product has drawn a lot of attention. However, surface-modified zeolite's sorption mechanisms and affinity for BTEX can be employed to potentially remove these toxins from water. Tert-butyl alcohol (TBA) was utilized to alter the morphology of the adsorbent. Based on the findings, it can be concluded that zeolites have a greater capability for removing emerging chemicals. Some of the emerging compounds' relatively large dimensions limit their natural ability to lower values. Gas chromatography was used to determine the BTEX concentration decrease range. The Yoon-Nelson and Adams-Bohart model's use of mathematical modelling to determine the efficacy of the column's adsorption. The model with the highest R2 values for characterizing equilibrium isotherm data describes equilibrium adsorption data. To gain an understanding of the shape, pore structure, and active sites, the characterisation is concentrated on quantitative analysis using XRD, qualitative analysis using FTIR, and optical study using SEM.</p>

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Mineralized calcium carbonate/xanthan gum microspheres for lysozyme adsorption

Cited by 12 publications

References 31 publications

Preparation and characterization of hydrogel from deacetylated xanthan gum produced by Xanthomonas arboricola pv pruni 106

Preparation and characterization of hydrogel from deacetylated xanthan gum produced by Xanthomonas arboricola pv pruni 106

Understanding Hierarchical Structure Construction Strategies and Biomimetic Design Principles: A Review

Removal of BTEX (Benzene, Toluene, Ethyl benzene and Xylene) from aqueous solutions using surface-modified zeolite

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