Modeling of the Adsorption/Desorption Characteristics and Properties of Anthocyanins from Extruded Red Cabbage Juice by Macroporous Adsorbent Resin

Zhang, Pingjing; Wang, Liping; Fang, Sheng

doi:10.1515/ijfe-2018-0239

Cited by 10 publications

(4 citation statements)

References 33 publications

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“…Several reviews exist on the sorption and membrane methods used to extract and purify anthocyanins [ 15 , 29 , 32 , 33 ]. Activated carbon and nonpolar or weakly polar porous polymer resins are the most common adsorbents [ 15 , 34 , 35 , 36 , 37 ]. Special attention is paid to the specific surface area, pore, and granule sizes of these adsorbents [ 38 ], as well as the temperature of the adsorption process [ 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Anthocyanins by Cation and Anion Exchange Resins with Aromatic and Aliphatic Polymer Matrices

Pismenskaya

Сарапулова

Klevtsova

et al. 2020

IJMS

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This study examines the mechanisms of adsorption of anthocyanins from model aqueous solutions at pH values of 3, 6, and 9 by ion-exchange resins making the main component of heterogeneous ion-exchange membranes. This is the first report demonstrating that the pH of the internal solution of a KU-2-8 aromatic cation-exchange resin is 2-3 units lower than the pH of the external bathing anthocyanin-containing solution, and the pH of the internal solution of some anion-exchange resins with an aromatic (AV-17-8, AV-17-2P) or aliphatic (EDE-10P) matrix is 2–4 units higher than the pH of the external solution. This pH shift is caused by the Donnan exclusion of hydroxyl ions (in the KU-2-8 resin) or protons (in the AV-17-8, AV-17-2P, and EDE-10P resins). The most significant pH shift is observed for the EDE-10P resin, which has the highest ion-exchange capacity causing the highest Donnan exclusion. Due to the pH shift, the electric charge of anthocyanin inside an ion-exchange resin differs from its charge in the external solution. At pH 6, the external solution contains uncharged anthocyanin molecules. However, in the AV-17-8 and AV-17-2P resins, the anthocyanins are present as singly charged anions, while in the EDE-10P resin, they are in the form of doubly charged anions. Due to the electrostatic interactions of these anions with the positively charged fixed groups of anion-exchange resins, the adsorption capacities of AV-17-8, AV-17-2P, and EDE-10P were higher than expected. It was established that the electrostatic interactions of anthocyanins with the charged fixed groups increase the adsorption capacity of the aromatic resin by a factor of 1.8–2.5 compared to the adsorption caused by the π–π (stacking) interactions. These results provide new insights into the fouling mechanism of ion-exchange materials by polyphenols; they can help develop strategies for membrane cleaning and for extracting anthocyanins from juices and wine using ion-exchange resins and membranes.

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Section: Introductionmentioning

confidence: 99%

Adsorption of Anthocyanins by Cation and Anion Exchange Resins with Aromatic and Aliphatic Polymer Matrices

Pismenskaya

Сарапулова

Klevtsova

et al. 2020

IJMS

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“…4a). This shows that the F − adsorption/desorption interactions occurred on the FeOOH surfaces (Kumar et al 2009;Zhang et al 2019;Mahmound et al 2020).…”

Section: Adsorption Kinetics Of F − On Feooh-containing Powdersmentioning

confidence: 78%

Fluoride ion adsorption isotherms, kinetics, and thermodynamics on iron(III) oxyhydroxide powders containing cellulose nanofibrils

Umehara

Kumamoto

Mukai

et al. 2023

Environ Sci Pollut Res

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The adsorption isotherms, kinetics, and thermodynamics of fluoride ions (F−) on FeOOH powders in water were investigated to obtain fundamental information on FeOOH powders, which are used as F− adsorbents in drinking and industrial water, and industrial wastewater. FeOOH powders were prepared as precipitates by mixing aqueous FeCl3 and NaOH solutions (1:3 mol/mol) in the presence of 2,2,6,6,-tetramethylpiperidine-1-oxyl radical (TEMPO)-oxidized cellulose nanofibrils (TOCNs), carboxymethylcellulose (CMC), or TEMPO-oxidized cellulose (TOC) fibers (without nanofibrillation), and subsequent drying and pulverizing. The FeOOH:TOCN, FeOOH:CMC, and FeOOH:TOC dry mass ratios were controlled at 87:13. The amount of F− adsorbed by the FeOOH/TOCN powder per FeOOH mass was higher than those adsorbed by FeOOH, FeOOH/CMC, or FeOOH/TOC. The F− adsorption isotherms on the FeOOH-containing powders showed higher correlation coefficients with the Langmuir model than with the Freundlich model. This indicates that F− adsorbed on FeOOH initially formed a monolayer, predominantly via physical adsorption. Pseudo-second-order kinetics fitted well to the time-dependent F− adsorption behaviors on the FeOOH-containing powders. Thermodynamic analysis of F− adsorption on the FeOOH-containing powders showed that the ΔG values were negative, which indicates that F− adsorption on the FeOOH-containing powders proceeded spontaneously in water. The negative ΔG value for FeOOH/TOCN was higher than those for FeOOH, FeOOH/CMC, and FeOOH/TOC at the same temperature. This shows that the FeOOH/TOCN powder can be used as an excellent and efficient F− adsorbent in water. Graphical abstract

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“…The total anthocyanin content of the black carrot juice was determined using the pH‐differential method according to a previous study (Zhang et al, 2019). The absorbance of the samples was measured at 510 and 700 nm in pH 1.0 and 4.5 using a spectrophotometer (UV‐2600, Shimadzu, Japan).…”

Section: Methodsmentioning

confidence: 99%

Sterilization of black carrot juice by thermosonication: Compound changes revealed by NMR and GC–MS metabolomics methods

Wang,

Lu,

et al. 2023

J Food Process Engineering

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In this study, thermosonic sterilization (TS), ultrasonic sterilization (US), and heat sterilization at 60°C, 80°C, and 90°C were used for the bactericidal treatment of black carrot juice. The processed samples were analyzed in terms of physicochemical, biological activity, microbial, and metabolomics approaches. The main differential metabolites were identified after treatment. Among these, the content of the important chemical component anthocyanins increased by 10.64% and 6.82% in TS and US, respectively. The TS treatment showed better retention of most of the active substances such as carbohydrates, malic acid, alanine, sterols, lutein, and terpenes compared to the other treatments. Furthermore, the TS treatment reduced the ultrasonic power and time for inactivating microorganisms and increased the DPPH radical scavenging activity by 11.31% compared to the control. The experimental results showed that the black carrot juice after TS treatment with 60% ultrasonic power at 60°C for 5 min sterilization was more favorable for the retention of nutrients and volatiles, improving the quality, safety, and economic potential of black carrot juice.Practical applicationsThis work for the first‐time applied TS to black carrot juice. The effect of TS treatment on the quality of black carrot juice was studied and compared with ultrasonic and conventional heat treatment by metabolomics approach. TS could significantly reduce US treatment time from 25 min (20°C) to 5 min (60°C) for the sterilization of juice. TS has a better effect on the retention of nutrients and flavor substances in the juice. The study is beneficial to the application of TS in purple carrot juice sterilization, also the application of 1H‐NMR and GC–MS metabolomics approach in food processing.

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Modeling of the Adsorption/Desorption Characteristics and Properties of Anthocyanins from Extruded Red Cabbage Juice by Macroporous Adsorbent Resin

Cited by 10 publications

References 33 publications

Adsorption of Anthocyanins by Cation and Anion Exchange Resins with Aromatic and Aliphatic Polymer Matrices

Adsorption of Anthocyanins by Cation and Anion Exchange Resins with Aromatic and Aliphatic Polymer Matrices

Fluoride ion adsorption isotherms, kinetics, and thermodynamics on iron(III) oxyhydroxide powders containing cellulose nanofibrils

Sterilization of black carrot juice by thermosonication: Compound changes revealed by NMR and GC–MS metabolomics methods

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