Sustainable utilization of cane molasses by an integrated separation process: Interplay between adsorption and nanofiltration

Luo, Jianquan; Guo, Shiwei; Qiang, Xiufu; Hang, Xinxin; Chen, Xiangrong; Wang, Yujue

doi:10.1016/j.seppur.2019.03.008

Cited by 35 publications

(25 citation statements)

References 32 publications

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“…Indeed, in 2000, Scopus indexed 314 publications on mainly the medical properties of these substances, but since 2015, the number of publications has exceeded 2000 per year. The main focus of this research has shifted to the preservation of anthocyanins and other polyphenols in juices and wines during their production [ 11 , 12 , 13 ] as well as to anthocyanins extraction from natural sources (primarily from winemaking waste [ 4 ]); in processing berries, fruits, vegetables [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ]; or in discoloration of food [ 21 , 22 ] and waste water [ 23 , 24 , 25 ].…”

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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“…However, in this procedure the pigments in sugarcane molasses would adsorb on the membrane surface and pore walls, resulting in irreversible fouling and thus reducing the efficiency of sucrose recovery [72]. To control this fouling on the surface of the NF membrane, a nonpolar resin was used to remove pigments at the front of the NF process [73,74], the NF operating pressure was decreased by 50% and the resulting permeability increased by 10%.…”

Section: Separation Of Polysaccharidesmentioning

confidence: 99%

Nanofiltration for separation and purification of saccharides from biomass

Tan

Luo

et al. 2021

Front. Chem. Sci. Eng.

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Saccharide production is critical to the development of biotechnology in the field of food and biofuel. The extraction of saccharide from biomass-based hydrolysate mixtures has become a trend due to low cost and abundant biomass reserves. Compared to conventional methods of fractionation and recovery of saccharides, nanofiltration (NF) has received considerable attention in recent decades because of its high selectivity and low energy consumption and environmental impact. In this review the advantages and challenges of NF based technology in the separation of saccharides are critically evaluated. Hybrid membrane processes, i.e., combining NF with ultrafiltration, can complement each other to provide an efficient approach for removal of unwanted solutes to obtain higher purity saccharides. However, use of NF membrane separation technology is limited due to irreversible membrane fouling that results in high capital and operating costs. Future development of NF membrane technology should therefore focus on improving material stability, antifouling ability and saccharide targeting selectivity, as well as on engineering aspects such as process optimisation and membrane module design.

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“…Recent years have witnessed tremendous advance of life science and bio‐product manufacturing, which spawned great requirements for cost‐effective purification and recovery technologies to ensure products with high purities and bioactivities [1]. However, conventional purification strategies, such as activated carbon adsorption, resin based ion exchange and column chromatography are semi‐continuous processes with massive solid waste generation and product loss, as well as high pretreatment/regeneration costs [2]. Membrane technology, especially nanofiltration (NF), as an energy‐saving and environmentally friendly separation technology, plays more and more important role in purification and recovery of the high‐value bio‐products [3].…”

Section: Introductionmentioning

confidence: 99%

“…tional purification strategies, such as activated carbon adsorption, resin based ion exchange and column chromatography are semi-continuous processes with massive solid waste generation and product loss, as well as high pretreatment/regeneration costs [2]. Membrane technology, especially nanofiltration (NF), as an energy-saving and environmentally friendly separation technology, plays more and more important role in purification and recovery of the high-value bio-products [3].…”

Section: Introductionmentioning

confidence: 99%

Nanofiltration membrane for bio‐separation: Process‐oriented materials innovation

Cao

Chen

Wan

et al. 2021

Engineering in Life Sciences

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Nanofiltration (NF) with advantages of high efficiency and low‐cost has attracted increasing attentions in bio‐separation. However, the large‐scale application is limited by the inferior molecular selectivity, low chemical stability and serious membrane fouling. Many efforts, thus, have been devoted in NF materials design for specific applications to enhance the separation efficiency of bio‐products and increase membrane life‐time, as well as reduce the operating cost. This review summarized the recent progress of NF applications in bio‐separation, discussed various demands for NF membrane in the bio‐products purification and corresponding material innovations, finally proposed several practical suggestions for future research, which provided directions and guidance toward further product development and process industrialization.

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Sustainable utilization of cane molasses by an integrated separation process: Interplay between adsorption and nanofiltration

Cited by 35 publications

References 32 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

Nanofiltration for separation and purification of saccharides from biomass

Nanofiltration membrane for bio‐separation: Process‐oriented materials innovation

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