Adsorption of Maillard reaction products from aqueous solutions and sugar syrups using adsorbent resin

Serpen, Arda; Ataç, Burçe; Gökmen, Vural

doi:10.1016/j.jfoodeng.2007.02.048

Cited by 31 publications

(12 citation statements)

References 32 publications

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“…Сопоставление спектральных полос чистого адсорбента с его спектрами после адсорбционных экспериментов показывает практически полное совпадение характеристических полос, что как уже отмечалось, указывает на преимущественно нековалентное связывание фрагментов меланоидинов с поверхностью адсорбента. Участие функциональных групп адсорбента во взаимодействии выражено слабо: плечо при 1720 см 1 (ν С=О ) сохраняет свое положение и интенсивность, аналогичный вывод можно сделать относительно полос ν С-О-Н в интервале 1000-1300 см -1 , способных к участию в связывании меланоидинов [18][19][20]. Результаты проведенных исследований позволяют сформулировать следующие выводы:…”

Section: рисунок 3 -эффективность деколоризации растворов меланоидиновunclassified

Adsorptive Decolorization of Aqueous Melanoidin Solutions Using Synthetic Carbon-Saturated Sorbent

Черепанов¹,

Abdullina²

2020

XCROTPACOTPP

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Melanoidins-high molecular weight dark colored products of the final stages of the Maillard reaction, are currently being intensively studied, since they are of significant importance for the food industry and agriculture. They have antioxidant, antimicrobial, antiallergenic properties that determine their practical use, while the intense coloration of melanoidins when they enter water bodies causes negative consequences: their absorption of sunlight leads to degradation of aquatic ecosystems. Melanoidins with a high aromatic structural component can be toxic to the components of living systems, making the problem of their binding and removal from natural sources urgent. The paper presents the results of studying the decolonization of aqueous solutions of intensely colored Maillard reaction products, synthesized at different ratios of initial carbohydrate and aromatic amine. As adsorbent used a synthetic product, obtained as a result of glucose carbonation processes, characterized on the basis of spectral data and elemental analysis as a carbon-saturated material. Based on IR-Fourier transform spectroscopic data analysis, the possibility of concentrating melanoidins on the surface of a synthetic adsorbent due mainly to intermolecular hydrogen bonds and π-π-interactions is shown. Such interactions can be quite intense due to the melanoidin high molecular weight, while more intensive binding of melanoidins synthesized under conditions of excess aryl amine is quite logical. The results of studies presented are planned to be used for the development of technologies for the production of synthetic sorbents, active in binding intensively colored high-molecular substances with a significant aromatic structural component.

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Section: рисунок 3 -эффективность деколоризации растворов меланоидиновunclassified

Adsorptive Decolorization of Aqueous Melanoidin Solutions Using Synthetic Carbon-Saturated Sorbent

Черепанов¹,

Abdullina²

2020

XCROTPACOTPP

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“…An adsorption isotherm is important to characterize the adsorbent-adsorbate relation and Langmuir, Freundlich and Tempkin isotherm models are commonly used for this purpose (Chabani, Amrane et al, 2006, Serpen, Ataç et al, 2007, Wang, Ying et al, 2012. The adsorption of dye onto each of the three adsorbents was studied at all three temperatures, respectively 25, 35, and 45 °C.…”

Section: Determination Of Adsorption Isothermsmentioning

confidence: 99%

Acid and Ultrasound Assisted Modification of Boron Enrichment Process Waste and Using for Methylene Blue Removal from Aqueous Solutions

2018

Global NEST Journal

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ultrasound assisted modification of boron enrichment process waste and using for methylene blue removal from aqueous solutions, Global NEST Journal, 20(X), XX-XX. AbstractIn this study, raw boron enrichment waste was treated with hydrochloric acid and ultrasound at 35-kHz frequency for 60 minutes. To optimize the adsorption conditions for removal of methylene blue (MB) from synthetic wastewaters using raw boron enrichment waste (BEW), acid modified boron enrichment waste (HBEW) and ultrasound modified BEW (UBEW) by adsorption process and to compare the adsorption efficiency of chemical and ultrasonic modifications of BEW were aimed. The optimum adsorption conditions were determined economically and eco-friendly aspect and MB removal percents were found as 80%, 80% and 92% at optimum conditions for BEW, HBEW and UBEW, respectively. The maximum regression coefficient values were obtained as 0.911, 0.998 and 0.984 for BEW, HBEW and UBEW, respectively at Langmuir isotherm model. The adsorption rate was fitted well to pseudo-second order kinetics according to a good correlation coefficient. The adsorption of MB onto adsorbents studied is spontaneous in nature and feasible because of negative ∆G values. The results indicated that the boron enrichment process waste could be a suitable adsorbent for removal of MB from aqueous solution. The maximum adsorption capacities were equal to about 107,0 mg/g, 160,7 mg/g and 145,3 mg/g for BEW, HBEW and UBEW adsorbents at 298 K, respectively. The maximum dye removal percent was achieved for UBEW as 92% and ultrasound assisted modification was found more efficient method compared with acidic modification for MB removal.

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“…(1) migration of solute from bulk of the solution to the surface of the adsorbent (bulk diffusion); (2) diffusion of solute through the boundary layer to the surface of the adsorbent (film diffusion); (3) transport of the solute from the surface to interior pores of the particle (intraparticle diffusion or pore diffusion); and (4) adsorption of the solute at an active site on the surface of material (chemical reaction via ion-exchange, complexation and/or chelation). Second and third steps are likely to be rate-controlling for a solid-liquid adsorption process and several models describing these processes have been applied (Serpen et al 2007). The intraparticle diffusion model proposed by Weber and Morris is commonly used in order to identify the diffusion mechanism (Weber and Morris 1963).…”

Section: Adsorption Mechanismmentioning

confidence: 99%

Adsorption of Dark Colored Compounds in Apple Juice – Effects of Initial Soluble Solid Concentration on Adsorption Kinetics and Mechanism

Ataç

Gökmen²

2011

J Food Process Engineering

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Adsorption of dark colored compounds onto adsorbent resin was studied for different adsorbent resin concentrations (1.5, 2.0, 3.0, 5.0, 10.0, 15.0 g resin/L apple juice) and different °Brix ratios of apple juice (10, 20, 30 °Brix). The equilibrium data obtained fitted well to Langmuir isotherm. The maximum adsorption capacity was found 0.124 1/g resin at 30C for apple juice having a °Brix ratio of 10. The adsorption of dark colored compounds from apple juice onto adsorbent resin followed pseudo‐second‐order kinetic model. The adsorption rate constants decreased as the °Brix ratio of apple juice increased. As it was confirmed by Bangham's equation, the rate‐limiting step was intraparticle diffusion. This study showed that using adsorbent resin to improve color had no effect on organic acid and sugar composition of apple juice. PRACTICAL APPLICATIONS Browning during processing and storage adversely affects the commercial acceptability of apple juice concentrate. Adsorption is considered as a viable process to improve apple juice color. The present study shows the adsorption behavior, kinetics and mechanism of dark colored compounds in apple juice. From a practical application point of view, initial soluble solid content of apple juice is considered as an important parameter that should be taken under control to improve the adsorption efficiency. After the adsorption process, the level of main constituents such as sugar and organic acids remain constant so this adsorption process appears to be effective for apple juice process.

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Adsorption of Maillard reaction products from aqueous solutions and sugar syrups using adsorbent resin

Cited by 31 publications

References 32 publications

Adsorptive Decolorization of Aqueous Melanoidin Solutions Using Synthetic Carbon-Saturated Sorbent

Adsorptive Decolorization of Aqueous Melanoidin Solutions Using Synthetic Carbon-Saturated Sorbent

Acid and Ultrasound Assisted Modification of Boron Enrichment Process Waste and Using for Methylene Blue Removal from Aqueous Solutions

Adsorption of Dark Colored Compounds in Apple Juice – Effects of Initial Soluble Solid Concentration on Adsorption Kinetics and Mechanism

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