Kinetic and thermodynamic studies of sulforaphane adsorption on macroporous resin

Yuanfeng, Wu; Zhang, Lei; Mao, Jianwei; Liu, Shiwang; Huang, Jun; You, Yu; Mei, Lehe

doi:10.1016/j.jchromb.2016.06.035

Cited by 44 publications

(15 citation statements)

References 28 publications

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“…where KL (g/L) is the constant of the Langmuir model. The Freundlich equation and its variable form, described by Wu et al (2016), are shown in Eq. 9 and Eq.…”

Section: = 1+mentioning

confidence: 99%

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Determining the adsorption and desorption properties of flavonoids found in Eucommia ulmoides Oliv. leaves using macroporous resin and acetylcholinesterase inhibitor screening

Wang¹,

Zhigang²,

Peng

et al. 2020

BioRes

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The adsorption and desorption properties of 12 resins containing flavonoid compounds found in Eucommia ulmoides Oliv. leaves (EUOL) extracts were investigated. The static adsorption and desorption, kinetic, adsorption, and thermodynamic properties of the adsorption of the flavonoids onto macroporous resins were determined. The HPD-300, NKA-9, and AB-8 resins exhibited a greater adsorption capacity and desorption characteristics. A pseudo-second-order kinetic model was suitable to characterize the kinetics of the adsorption of flavonoids onto the resins selected, and the diffusion of flavonoids was divided into three stages, with the boundary layer diffusion and intra-particle diffusion being the rate-controlling factors. The Langmuir model was found to be the best description of the adsorption behavior of flavonoids. Thermodynamic studies indicated that the adsorption of flavonoids was a physical, exothermic, and spontaneous process. The 60% ethanol eluted fraction from the NKA-9 resin column not only had the highest flavonoid content, but also possessed the strongest inhibitory effect on acetylcholinesterase. In addition, the degree of binding of the main flavonoid compounds found in the EUOL to acetylcholinesterase compounds was investigated via molecular docking technology. The results showed that the docking total score of isoquercetin and enzyme proteins were the highest, followed by kaempferol-3-O-rutinoside.

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“…where KL (g/L) is the constant of the Langmuir model. The Freundlich equation and its variable form, described by Wu et al (2016), are shown in Eq. 9 and Eq.…”

Section: = 1+mentioning

confidence: 99%

“…The Gibbs free energy change (ΔG, kJ/mol), enthalpy change (ΔH, kJ/mol), and entropy change (ΔS, J/(molK)) are used to describe the SF adsorption thermodynamics at different temperatures. The enthalpy changes (ΔH) was calculated by the Van't Hoff equation, described by Wu et al (2016), and shown in Eq. 13, Eqs.…”

Section: = 1+mentioning

confidence: 99%

Determining the adsorption and desorption properties of flavonoids found in Eucommia ulmoides Oliv. leaves using macroporous resin and acetylcholinesterase inhibitor screening

Wang¹,

Zhigang²,

Peng

et al. 2020

BioRes

View full text Add to dashboard Cite

show abstract

“…The identification of the mechanism limiting the rate of the process is made the reaction kinetics behaviour. In order to evaluate the mechanism of the metal ions adsorption process on the Diphonix and to interpret the experimental data, several known kinetic models were used: the pseudo-first order (PFO), pseudosecond order (PSO), intraparticle diffusion (IPD) and Boyd models presented by following equations, respectively (Kiruba et al 2014;Yuanfeng et al 2016).…”

Section: Kinetic Studiesmentioning

confidence: 99%

“…Plotting lnK c against 1/T the values of ΔS° and ΔH° as the intercept and the slope of the plot can be obtained (Yuanfeng et al 2016).…”

Section: Thermodynamic Studiesmentioning

confidence: 99%

Recovery of metals from waste nickel-metal hydride batteries using multifunctional Diphonix resin

2019

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In this study, Diphonix resin containing sulfonic, diphosphonic and carboxylic groups was used to evaluate the adsorption capacity of metal ions contained in the nickel-metal hydride batteries (Ni-MH). This type of ion exchanger can be considered as the multifunctional material having great affinity to many metal ions. Using Diphonix resin adsorption process was carried out for La(III) and Ni(II) ions to characterize kinetic, adsorption and thermodynamic parameters. Preliminary studies of the Nd(III), Ce(III), La(III), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) metal ions mixture were also performed. The best results of adsorption studies were obtained using 0.2 M HNO 3. Diphonix resin exhibits especially good adsorptive properties with respect to rare earth element ions (adsorption efficiency of about 100%) in comparison with the heavy metal ions in the second oxidation state (about 50% or below). The series of affinity of the resin for the studied ions can be presented as follows: La(III) > Fe(III) > Nd(III) > Ce(III) > Cu(II) > Zn(II) > Co(II) > Ni(II). The obtained results confirmed the possibility of further use of the resin for the recovery and separation of rare earth elements from solutions after Ni-MH batteries leaching.

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“…In addition, XAD-16 resin had a larger surface area, which made it had stronger adsorption ability to polysaccharide than other resins (Yuanfeng et al, 2016). This result might be due to the small average pore size of D3520 resin, which made it difficult for protein molecules to enter the resin.…”

Section: Adsorption and Desorption Capacity Of Four Resins In Hc-cpsmentioning

confidence: 99%

Deproteinization of four macroporous resins for rapeseed meal polysaccharides

Duan

Huang

Shen

et al. 2019

Food Science & Nutrition

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In this study, the adsorption/desorption characteristics of rapeseed meal polysaccharides extract on four resins (HP‐20, D3520, XAD‐16, and AB‐8) were evaluated. The results indicated that HP‐20 resin had the best purification effect. Based on static adsorption test, the kinetics and isotherms of the four resins for protein and polysaccharide were investigated. The adsorption test showed that the pseudo‐second‐order kinetics model and the Freundlich isotherm model were more suitable for explanation of the adsorption process for protein and polysaccharide. Static desorption test showed that the highest protein desorption ratios of HP‐20, D3520, and AB‐8 resins could be obtained with 60% ethanol solution as eluate, and the highest protein desorption ratios of XAD‐16 resin could be obtained with 40% ethanol solution as eluate. Dynamic adsorption/desorption tests of HP‐20 resin showed that the deproteinization ratio was 91% and the polysaccharide recovery ratio was 62% when the treatment amount was 1.5 BV. Compared with three traditional methods, HP‐20 resin adsorption method that the deproteinization ratio was 82% was more potent than the three traditional methods for purifying polysaccharides from rapeseed meal. In addition, UV/vis spectroscopy showed that most of the protein was absorbed by resins, and FT‐IR spectroscopy indicated that the purity of the polysaccharide after purification was improved. Rapeseed meal polysaccharides could be effectively deproteinized using HP‐20 resin, and it was suitable for purifying polysaccharides from rapeseed meal.

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Kinetic and thermodynamic studies of sulforaphane adsorption on macroporous resin

Cited by 44 publications

References 28 publications

Determining the adsorption and desorption properties of flavonoids found in Eucommia ulmoides Oliv. leaves using macroporous resin and acetylcholinesterase inhibitor screening

Determining the adsorption and desorption properties of flavonoids found in Eucommia ulmoides Oliv. leaves using macroporous resin and acetylcholinesterase inhibitor screening

Recovery of metals from waste nickel-metal hydride batteries using multifunctional Diphonix resin

Deproteinization of four macroporous resins for rapeseed meal polysaccharides

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