Membrane fouling during the fractionation of phytosterols isolated from orange juice

Abd-Razak, Nurul Hainiza; Chew, Y.M. John; Bird, Michael R.

doi:10.1016/j.fbp.2018.09.005

Cited by 19 publications

(17 citation statements)

References 46 publications

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“…Additional details concerning the ultrafiltration apparatus and the schematic design of the system can be found in Abd-Razak et al (2019). The ultrafiltration fouling and cleaning cycle consists of membrane conditioning, pure water flux (PWF), filtration, rinsing, and cleaning steps (Abd-Razak et al 2019). Permeate flux was measured during the ultrafiltration of orange juice.…”

Section: Ultrafiltration Experimental Setupmentioning

confidence: 99%

“…Our previous study was performed using three types of 10-kDa molecular weight cut-off (MWCO) ultrafiltration (UF) membranes made from regenerated cellulose (RC), polyethersulphone (PES), and fluoropolymer (FP). The 10-kDa regenerated cellulose membrane displayed the best rejection ratio of phytosterols (32%) from proteins in orange juice (Abd-Razak et al 2019). Thus, process optimisation is important since the phytosterol yield was relatively low.…”

Section: Introductionmentioning

confidence: 99%

“…This paper investigates the surface science of membrane fouling and cleaning processes and builds upon our previous study (Abd-Razak et al 2019) which demonstrated the principle of using ultrafiltration to separate phytosterols from proteins in orange juice. This paper describes the isolation of phytosterols from orange juice for nutraceutical fabrication via an ultrafiltration process using regenerated cellulose membranes at different MWCO values.…”

Section: Introductionmentioning

confidence: 99%

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Fouling Analysis and the Recovery of Phytosterols from Orange Juice Using Regenerated Cellulose Ultrafiltration Membranes

Abd-Razak

Zairossani

Chew

et al. 2020

Food Bioprocess Technol

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This study describes the use of regenerated cellulose (RCA) membranes with molecular weight cut-off (MWCO) values of 10, 30, and 100 kDa, respectively, to separate phytosterols from orange juice for possible nutraceutical production. A desirable membrane separation rejects protein whilst transmitting phytosterols and other low molecular mass compounds such as sugars. The ultrafiltration was performed in a cross-flow membrane system with a total filtration area of 336 cm2. Total phytosterol analysis was carried out by using a Liebermann-Buchard-based method. Protein concentration was quantified by the Bradford method. The effects of three different membranes upon the rejection of total phytosterol content, proteins, sugar, and antioxidant activity were studied. Of the membranes tested, the 10-kDa membrane displayed the highest concentration of phytosterols in the permeate. The 30-kDa and 100-kDa membranes gave comparatively higher phytosterol rejection. The membrane surface roughness and corresponding pure water flux values varied as a function of MWCO such that RCA30 > RCA100 > RCA10. Membranes with rougher surfaces displayed higher fouling than those with smoother surfaces. Hydrophobicity and surface roughness both influenced filtration performance, by controlling the development of the protein-based foulant which modified membrane selectivity.

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Section: Ultrafiltration Experimental Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fouling Analysis and the Recovery of Phytosterols from Orange Juice Using Regenerated Cellulose Ultrafiltration Membranes

Abd-Razak

Zairossani

Chew

et al. 2020

Food Bioprocess Technol

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“…Thus, in order to choose the right system, some authors have studied the comparison between ceramic and polymeric membranes for different purposes and applications [ 35 , 36 , 37 , 38 ]. Few studies have been carried out using the same membrane cut-off and the same operating conditions [ 39 , 40 ] and none have been applied to agave fructan fractionation. The industry must define the purification and fractionation process for agave fructans and, for these reasons, the objective of this study was to comparatively evaluate the operation of ceramic and polymeric membrane systems at the pilot scale in the tight UF process of agave fructans, in terms of their hydraulic permeability, permeate flux, rejection coefficient, fouling resistance and the global yield of the process.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Tight Ultrafiltration Membrane Systems at Pilot Scale for Agave Fructans Fractionation and Purification

et al. 2020

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Ceramic and polymeric membrane systems were compared at the pilot scale for separating agave fructans into different molecular weight fractions that help to diversify them into more specific industrial applications. The effect of the transmembrane pressure of ultrafiltration performance was evaluated through hydraulic permeability, permeate flux and rejection coefficients, using the same operating conditions such as temperature, feed concentration and the molecular weight cut-off (MWCO) of membranes. The fouling phenomenon and the global yield of the process were evaluated in concentration mode. A size distribution analysis of agave fructans is presented and grouped by molecular weight in different fractions. Great differences were found between both systems, since rejection coefficients of 68.6% and 100% for fructans with degrees of polymerization (DP) > 10, 36.3% and 99.3% for fructooligosaccharides (FOS) and 21.4% and 34.2% for mono-disaccharides were obtained for ceramic and polymeric membrane systems, respectively. Thus, ceramic membranes are better for use in the fractionation process since they reached a purity of 42.2% of FOS with a yield of 40.1% in the permeate and 78.23% for fructans with DP > 10 and a yield of 70% in the retentate. Polymeric membranes make for an efficient fructan purification process, eliminating only mono-disaccharides, and reaching a 97.7% purity (considering both fructan fractions) with a yield of 64.3% in the retentate.

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“…The significance of cellulose-based pressure-driven membrane filtration has been extensively described in literature [1][2][3][4][5]. Despite the chosen method of describing cellulose as a polymer-regardless of whether it is recognised as hydrophilic or an amphiphilic one [5][6][7][8][9]-the regenerated cellulose membranes are universally acknowledged as very hydrophilic, having higher biocompatibility and lower fouling tendency when compared with petroleum-based polymers due to cellulose being a biopolymer [10][11][12][13]. The existing research focusing on the manufacturing of cellulose membranes is highly variable regarding whether research groups prefer to use commercially produced cellulose [14][15][16] or biobased cellulose sources [2,17,18], using various solvents with high capacity for cellulose dissolution [3,4,19].…”

Section: Introductionmentioning

confidence: 99%

Wood-Based Cellulose-Rich Ultrafiltration Membranes: Alkaline Coagulation Bath Introduction and Investigation of Its Effect over Membranes’ Performance

et al. 2022

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In this study, wood-based cellulose-rich membranes were produced with a novel approach to casting procedure. Flat-sheet membranes were prepared from birch biomass pretreated with deep eutectic solvent and dissolved in ionic liquid–dimethylsulfoxide system via phase inversion method. Alkaline coagulation bath filled with sodium hydroxide solution was added to the process before a water coagulation bath and aimed to improve membranes’ performance. The effect of NaOH coagulation bath on the membrane was studied based on two NaOH concentrations and two different treatment times. The characterisation methods included measuring pure water permeabilities, polyethylene glycol 35 kDa model solution retentions, hydrophilicity, zeta potential, and chemical structure. Additionally, suitability of the membranes for removing residual phosphorous from a municipal wastewater treatment plant’s effluent was studied. The study revealed that introduction of the alkaline coagulation bath led to additional removal of lignin from membrane matrix and increase in the filtration capacity up to eight times. The resulting membranes can be characterised as very hydrophilic, with contact angle values 11.9–18.2°, negatively charged over a wide pH range. The membranes with the highest permeability, 380–450 L/m2·h·bar, showed approximately 70% phosphorus removal from purified wastewater, good removal of suspended solids, and low irreversible fouling tendency.

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Membrane fouling during the fractionation of phytosterols isolated from orange juice

Cited by 19 publications

References 46 publications

Fouling Analysis and the Recovery of Phytosterols from Orange Juice Using Regenerated Cellulose Ultrafiltration Membranes

Fouling Analysis and the Recovery of Phytosterols from Orange Juice Using Regenerated Cellulose Ultrafiltration Membranes

Performance Evaluation of Tight Ultrafiltration Membrane Systems at Pilot Scale for Agave Fructans Fractionation and Purification

Wood-Based Cellulose-Rich Ultrafiltration Membranes: Alkaline Coagulation Bath Introduction and Investigation of Its Effect over Membranes’ Performance

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