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Sadeghi M, Moghimifar Z, Javadian H, Jahanshahi M, Farsadrooh M. Treatment of nano-oil polluted wastewater in an expanded bed adsorption column based on carboxymethyl cellulose-cellulose-nickel composite beads. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126038. [PMID: 34015714 DOI: 10.1016/j.jhazmat.2021.126038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 04/01/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
In the present work, spherical carboxymethyl cellulose-cellulose-nickel (CMC-C-Ni) composite beads as novel adsorbent was synthesized to make a stable expanded bed adsorption (EBA) column for the treatment of the oily wastewater collected from the downstream of rapeseed industry. The morphology and structure of the CMC-C-Ni composite beads were studied by scanning electron microscopy (SEM) and optical microscope. The SEM images revealed that the synthesized composite beads were spherical with porous structure. The pore size of the beads was in the range of 90-200 nm. The physical characteristics of the CMC-C-Ni composite beads including wet density, porosity, and water content were respectively in the ranges of 1.23-1.63 g/cm3, 82.29-90.75%, and 52-76%. The factor of bed expansion in the range of 2-3 was corresponded with Richardson-Zaki equation. The results showed that by increasing the fluid viscosity, the terminal settling velocity (Ut) was reduced. The expansion index values were between 2.77 and 3.14 that were close to 4.8 (commonly utilized index in the laminar flow regimes). CMC-C-Ni composite beads were tested when the velocity of fluid was ˂ 700 cm/h, and the Daxl was found to be ˂ 1 × 10-5 m2/s (steady state).
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Affiliation(s)
- Meisam Sadeghi
- Nanotechnology Research Institute, Faculty of Chemical Engineering, Babol Noushirvani University of Technology, Babol, Iran
| | - Zahra Moghimifar
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), Tehran, Iran
| | - Hamedreza Javadian
- Universitat Politècnica de Catalunya, Department of Chemical Engineering, ETSEIB, Diagonal 647, 08028 Barcelona, Spain.
| | - Mohsen Jahanshahi
- Nanotechnology Research Institute, Faculty of Chemical Engineering, Babol Noushirvani University of Technology, Babol, Iran
| | - Majid Farsadrooh
- Renewable Energies Research Laboratory, Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, P.O. Box 98135 674, Zahedan, Iran
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Dantas JMDM, Araújo NKD, Silva NSD, Torres-Rêgo M, Furtado AA, Assis CFD, Araújo RM, Teixeira JA, Ferreira LDS, Fernandes-Pedrosa MDF, Dos Santos ES. Purification of chitosanases produced by Bacillus toyonensis CCT 7899 and functional oligosaccharides production. Prep Biochem Biotechnol 2021; 52:443-451. [PMID: 34370621 DOI: 10.1080/10826068.2021.1961273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Chitooligosaccharides (COS) have a great potential to be used by pharmaceutical industry due to their many biological activities. The use of enzymes to produce them is very advantageous, however it still faces many challenges, such as discovering new strains capable to produce enzymes that are able to generate bioactive oligosaccharides. In the present study a purification protein protocol was performed to purify chitosanases produced by Bacillus toyonensis CCT 7899 for further chitosan hydrolysis. The produced chitooligosaccharides were characterized by mass spectroscopy (MS) and their antiedematogenic effect was investigated through carrageenan-induced paw edema model. The animals were treated previously to inflammation by intragastric route with COS at 30, 300 and 600 mg/kg. The purification protocol showed a good performance for the chitosanases purification using 0.20 M NaCl solution to elute it, with a 9.54-fold purification factor. The treatment with COS promoted a decrease of paw edema at all evaluated times and the AUC0-4h, proving that COS produced showed activity in acute inflammation like commercial anti-inflammatory Dexamethasone (corticosteroid). Therefore, the strategy used to purification was successfully applied and it was possible to generate bioactive oligosaccharides with potential pharmacological use.
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Affiliation(s)
| | | | | | - Manoela Torres-Rêgo
- Department of Phamarcy, Federal University of Rio Grande do Norte, Natal, Brazil.,Chemistry Institute, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | | | | | | | | | | | - Everaldo Silvino Dos Santos
- Department of Chemical Engineering, Technology Center, Federal University of Rio Grande do Norte, Natal, Brazil
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Simon U, Scorza LCT, Teworte S, McCormick AJ, Dimartino S. Demonstration of protein capture and separation using three-dimensional printed anion exchange monoliths fabricated in one-step. J Sep Sci 2020; 44:1078-1088. [PMID: 32898296 DOI: 10.1002/jssc.202000722] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Three-dimensional printing applications in separation science are currently limited by the lack of materials compatible with chromatographic operations and three-dimensional printing technologies. In this work, we propose a new material for Digital Light Processing printing to fabricate functional ion exchange monoliths in a single step. Through copolymerization of the bifunctional monomer [2-(acryloyloxy)ethyl] trimethylammonium chloride, monolithic structures with quaternary amine ligands were fabricated. The novel formulation was optimized in terms of protein binding and recovery, microporous structure, and its swelling susceptibility by increasing its cross-link density and employing cyclohexanol and dodecanol as pore forming agents. In static conditions, the material demonstrated a maximum binding capacity of 104.2 ± 10.6 mg/mL for bovine serum albumin, in line with commercially available materials. Its anion exchange behavior was validated by separating bovine serum albumin and myoglobin on a monolithic bed with Schoen gyroid morphology. The same column geometry was tested for the purification of C-phycocyanin from clarified as well as cell-laden Arthrospira platensis feedstocks. This represents the first demonstration of one-step printed stationary phases to capture proteins directly from solid-laden feedstocks. We believe that the material presented here represents a significant improvement towards implementation of three-dimensional printed chromatography media in the field of separation science.
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Affiliation(s)
- Ursula Simon
- School of Engineering, Institute for Bioengineering, University of Edinburgh, Edinburgh, UK
| | - Livia C T Scorza
- School of Biological Sciences, SynthSys & Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, UK
| | - Sarah Teworte
- School of Engineering, Institute for Bioengineering, University of Edinburgh, Edinburgh, UK
| | - Alistair J McCormick
- School of Biological Sciences, SynthSys & Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, UK
| | - Simone Dimartino
- School of Engineering, Institute for Bioengineering, University of Edinburgh, Edinburgh, UK
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Maria de Medeiros Dantas J, Sousa da Silva N, Eduardo de Araújo Padilha C, Kelly de Araújo N, Silvino dos Santos E. Enhancing chitosan hydrolysis aiming chitooligosaccharides production by using immobilized chitosanolytic enzymes. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101759] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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5
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de Oliveira Júnior SD, de Araújo Padilha CE, de Asevedo EA, de Macedo GR, dos Santos ES. Recovery and purification of cellulolytic enzymes from Aspergillus fumigatus CCT 7873 using an aqueous two-phase micellar system. ANN MICROBIOL 2020. [DOI: 10.1186/s13213-020-01573-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Abstract
Purpose
In this study, an aqueous two-phase micellar system (ATPMS), formed by the non-ionic surfactant Triton X-114, was used to investigate the partitioning of cellulolytic enzymes produced by the filamentous fungus Aspergillus fumigatus CCT 7873.
Methods
Performance of the ATPMS on the partitioning of CMCase (activity on carboxymethyl cellulose) and FPase (activity on filter paper) was investigated by varying the temperature (35, 40, 45, 50, 55, 60, and 65 °C), enzyme crude extract concentration (20, 40, 60, and 80% w/w), and Triton X-114 concentration (2, 4, 6, and 8% w/w) and by adding different inorganic salts (NaCl, CaCl2, MgSO4, and MnSO4) in the system.
Results
An ATPMS formed with 8% (w/w) Triton X-114 and 40% (w/w) enzymatic crude extract at a system temperature of 55 °C was most favorable for partitioning the tested enzymes. Under these conditions, a purification factor for CMCase and FPase of 10.89 and 0.65 was reached, respectively. The addition of inorganic salts changed the distribution of enzymes. Of these, CaCl2 contributed to a higher distribution coefficient (50.0), whereas for FPase, the presence of MnSO4 in the system improved the purification factor to 3.94.
Conclusion
The highest values obtained for the yield and purification factors demonstrate that ATPMS is an interesting option for recovering and purifying cellulolytic enzymes.
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Aktuganov GE, Melentiev AI, Varlamov VP. Biotechnological Aspects of the Enzymatic Preparation of Bioactive Chitooligosaccharides (Review). APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819040021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ismail SA. Microbial valorization of shrimp byproducts via the production of thermostable chitosanase and antioxidant chitooligosaccharides. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101269] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Huang D, Li Y, Zhang M, Ruan S, Zhang H, Wang Y, Hu P. Tartaric acid induced conversion of protopanaxadiol to ginsenosides Rg3 and Rg5 and their in situ recoveries by integrated expanded bed adsorption chromatography. J Sep Sci 2016; 39:2995-3001. [PMID: 27288199 DOI: 10.1002/jssc.201600269] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/25/2016] [Accepted: 05/31/2016] [Indexed: 01/11/2023]
Abstract
Panax ginseng has been applied in traditional Chinese medicine for over 2000 years. It is still one of the most popular herbs in recent decades. The prescribed ginseng-containing medicines consist of protopanaxadiol and protopanaxatriol ginsenosides, which are the major constituents of the herb. Minor ginsenosides at low levels in the herb, such as Rg3 and Rg5 , have attracted more rising attention than the major ones. The existing approaches to prepare Rg3 and Rg5 usually rely on either steamed red ginseng as the source or chemical/enzymatic conversion of protopanaxadiol to the targets. It is still highly desirable to effectively achieve such minor components. In this paper, a method integrated extraction of protopanaxadiol and conversion of it to Rg3 and Rg5 has been proposed. Protopanaxadiol was extracted and simultaneously converted to Rg3 and Rg5 by d,l-tartaric acid. The targets were absorbed by resins on expanded bed adsorption chromatography and were then separated from other ginsenosides in different stages. Compared with conventional methods, the developed process has advantages in shortening time consumption and improving the conversion ratio of protopanaxadiol, which is promising in directly achieving Rg3 and Rg5 from P. ginseng.
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Affiliation(s)
- Dan Huang
- Shanghai Key Laboratory of New Drug Design & Modern Engineering Center for TCM, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yang Li
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Min Zhang
- Shanghai Key Laboratory of New Drug Design & Modern Engineering Center for TCM, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Shengli Ruan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Hongyang Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yuerong Wang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Ping Hu
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
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Schug KA. Protein and Macromolecular Separations. J Sep Sci 2016; 39:638-9. [DOI: 10.1002/jssc.201670044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/23/2015] [Accepted: 11/26/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Kevin A. Schug
- Department of Chemistry and Biochemistry; The University of Texas at Arlington
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