Understanding of phenolic compound retention mechanisms on PES-UF membrane

Mnif, Amine; Mouelhi, Meral; Hamrouni, Béchir

doi:10.3906/kim-1611-64

Cited by 4 publications

(6 citation statements)

References 34 publications

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“…At the same time, these methods offer benefits like no formation of byproducts and easy operation. [ 20 ] Reverse osmosis (RO) remains one of the most efficient, fast and effective methods among all. At the same time, costly RO membranes for reverse osmosis, certainly limit their usage in chromium removal from the environment.…”

Section: Alternatives To Cr(vi) Removalmentioning

confidence: 99%

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Biopolymer‐Based Nanocomposites for Removal of Cr(VI) from Aqueous Systems: A Review

Shukla

Garg

et al. 2023

CLEAN Soil Air Water

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Hexavalent chromium Cr(VI) has emerged as a contaminant of prime concern for the environmentalists because of its improper disposal by tannery, dye, and electroplating industries. Adsorption is the most exploited method for its removal from industrial wastewater because of its high removal efficiency even at low Cr(VI) concentration, minimal sludge, and ease of regeneration. In recent years, several adsorbents of biological origin such as plants, algae, fungi, and bacteria have been explored for Cr(VI) remediation. This review comprehends the recent studies involving usage of biopolymer‐based nano‐composites with respect to its adsorption mechanisms, adsorption capacities, isotherms, and kinetics. The conventional abiotic and biotic techniques for removal of Cr(VI) are also discussed with a comparative insight of their adsorption capacity and removal efficiency. Nano‐biocomposites integrate the functional properties of both nanoparticles and biopolymers, which make them efficient biosorbents. Nano‐biocomposites offer a large surface area, reduced particle loss, minimal particle agglomeration on the surface, and high stability. Common kinetic models among the nano‐biocomposites, and various equilibrium models are also analyzed to understand the mode of adsorption and associated factors. These materials are mostly found to follow monolayer adsorption with ion exchange, electrostatic interaction, and surface complexation as major players in the process.

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Section: Alternatives To Cr(vi) Removalmentioning

confidence: 99%

“…Apart from conventional filtration membranes, new nano‐filtration membranes are under extensive research for use in Cr(VI) removal as they exhibit high Cr(VI) removal efficiency. [ 20 ]…”

Section: Alternatives To Cr(vi) Removalmentioning

confidence: 99%

Biopolymer‐Based Nanocomposites for Removal of Cr(VI) from Aqueous Systems: A Review

Shukla

Garg

et al. 2023

CLEAN Soil Air Water

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“…Penurunan kandungan total fenol (Gambar 2B) hidrolisat tepung tempe koro benguk setelah proses pemisahan menggunakan membran ultrafiltrasi diduga disebabkan oleh adsorpsi komponen fenolik pada permukaan membran sehingga terjadi penolakan senyawa fenolik oleh membran UF (Mnif et al, 2017). Sitanggang et al (2021b) juga melaporkan bahwa terjadi penolakan senyawa fenolik dari hidrolisat tempe kedelai oleh membran 10 kDa yang menyebabkan kandungan total fenolik pada permeat lebih kecil daripada substrat.…”

Section: Total Fenolikunclassified

Produksi Hidrolisat Protein Kacang Koro Benguk dengan Aktivitas Penghambat Kerja Enzim Pengkonversi Angiotensin melalui Kombinasi Fermentasi dan Hidrolisis Enzimatik

Pratami

Sitanggang

Wijaya

2022

J. Teknol Industri Pangan

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Mucuna bean (Mucuna pruriens L.) is a legume having high protein content which has the potential as a source of bioactive peptides. One of the bioactive peptides is an angiotensin-converting enzyme (ACE) inhibitor, thus, mucuna beans might be used as a potential source of antihypertensive compounds. This study aimed to increase the functionality of proteins from mucuna beans as ACE inhibitors using a combination of fermentation and enzymatic hydrolysis followed by membrane filtration. The mucuna beans were fermented for 0, 24, 48, 96, and 144 h. The highest ACE inhibitory activity of 54.37%, was obtained by fermentation of the beans at 48 h, with a protein content of 20.82 mg/mL. The 48 h fermented mucuna beans were further hydrolyzed using alcalase or neutrase and subsequently filtered with UF membranes having 20,10 and 5 kDa cut-off. The enzymatic hydrolysis followed by membrane filtration increased the ACE inhibitory activity of mucuna beans. The neutrase hydrolysates resulting from 5 kDa membrane filtration showed the best ACE inhibitory activity (62.96% with a protein content of 10.39 mg/mL). A combination of fermentation and enzymatic hydrolysis followed by filtration using UF-membrane was able to produce ACE inhibitory peptides from mucuna beans. The potential of mucuna beans peptides as ACE inhibitors was due to the presence of negatively charged amino acid residues such as Asp and Glu, positively charged amino acids such as Arg and Lys, and hydrophobic amino acids such as Val, Leu, Ala, and Ile.

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“…A wide variety of removal technologies is available for Cr(VI) elimination from wastewater, such as electrochemical treatments, ion exchange, adsorption, membrane filtration, reverse osmosis, chemical precipitation, lime coagulation, and solvent extraction 3. However, these technologies have been reported to have many disadvantages, including the formation of metal oxides, the generation of sludge, expensive and partial removal of some ions, and production of a large amount of sludge containing toxic compounds, making it critical for cost‐effective treatment methods 7. In this context, several researchers have focused considerable attention on cheap methods, such as adsorption and biosorption processes 8.…”

Section: Introductionmentioning

confidence: 99%

Coupling Alternating Current and Biosorption for the Removal of Hexavalent Chromium

et al. 2021

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The effect of coupling alternating current (AC) with biosorption using Tunisian corn stigmata on the removal of hexavalent chromium (Cr(VI)) from aqueous solution was studied. A comparative study was performed between biosorption alone and biosorption coupled with AC, for the removal of Cr(VI). The effects of various operating parameters were studied, such as the solution pH, the contact time, the initial concentration, the temperature, and the salt concentration. The comparison between biosorption in the presence and absence of an AC shows the importance of the AC in the acceleration of the biosorption process. The kinetic study showed that the fractal Brouers‐Sotolongo model was the best model for describing the random distribution of the active sites.

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Understanding of phenolic compound retention mechanisms on PES-UF membrane

Cited by 4 publications

References 34 publications

Biopolymer‐Based Nanocomposites for Removal of Cr(VI) from Aqueous Systems: A Review

Biopolymer‐Based Nanocomposites for Removal of Cr(VI) from Aqueous Systems: A Review

Produksi Hidrolisat Protein Kacang Koro Benguk dengan Aktivitas Penghambat Kerja Enzim Pengkonversi Angiotensin melalui Kombinasi Fermentasi dan Hidrolisis Enzimatik

Coupling Alternating Current and Biosorption for the Removal of Hexavalent Chromium

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