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Lomelí-Ramírez MG, Reyes-Alfaro B, Martínez-Salcedo SL, González-Pérez MM, Gallardo-Sánchez MA, Landázuri-Gómez G, Vargas-Radillo JJ, Diaz-Vidal T, Torres-Rendón JG, Macias-Balleza ER, García-Enriquez S. Thermoplastic Starch Biocomposite Films Reinforced with Nanocellulose from Agave tequilana Weber var. Azul Bagasse. Polymers (Basel) 2023; 15:3793. [PMID: 37765647 PMCID: PMC10534575 DOI: 10.3390/polym15183793] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
In this work, cellulose nanocrystals (CNCs), bleached cellulose nanofibers (bCNFs), and unbleached cellulose nanofibers (ubCNFs) isolated by acid hydrolysis from Agave tequilana Weber var. Azul bagasse, an agro-waste from the tequila industry, were used as reinforcements in a thermoplastic starch matrix to obtain environmentally friendly materials that can substitute contaminant polymers. A robust characterization of starting materials and biocomposites was carried out. Biocomposite mechanical, thermal, and antibacterial properties were evaluated, as well as color, crystallinity, morphology, rugosity, lateral texture, electrical conductivity, chemical identity, solubility, and water vapor permeability. Pulp fibers and nanocelluloses were analyzed via SEM, TEM, and AFM. The water vapor permeability (WVP) decreased by up to 20.69% with the presence of CNCs. The solubility decreases with the presence of CNFs and CNCs. The addition of CNCs and CNFs increased the tensile strength and Young's modulus and decreased the elongation at break. Biocomposites prepared with ubCNF showed the best tensile mechanical properties due to a better adhesion with the matrix. Images of bCNF-based biocomposites demonstrated that bCNFs are good reinforcing agents as the fibers were dispersed within the starch film and embedded within the matrix. Roughness increased with CNF content and decreased with CNC content. Films with CNCs did not show bacterial growth for Staphylococcus aureus and Escherichia coli. This study offers a new theoretical basis since it demonstrates that different proportions of bleached or unbleached nanofibers and nanocrystals can improve the properties of starch films.
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Affiliation(s)
- María Guadalupe Lomelí-Ramírez
- Department of Wood, Cellulose and Paper, University Center for Exact Sciences and Engineering, University of Guadalajara, km 15.5 at the Guadalajara-Nogales Highway, Zapopan 45220, Mexico; (M.G.L.-R.); (S.L.M.-S.); (M.M.G.-P.); (J.J.V.-R.); (J.G.T.-R.)
| | - Benjamín Reyes-Alfaro
- Department of Chemical Engineering, Michoacana University of Saint Nicholas of Hidalgo, Morelia 58030, Mexico;
| | - Silvia Lizeth Martínez-Salcedo
- Department of Wood, Cellulose and Paper, University Center for Exact Sciences and Engineering, University of Guadalajara, km 15.5 at the Guadalajara-Nogales Highway, Zapopan 45220, Mexico; (M.G.L.-R.); (S.L.M.-S.); (M.M.G.-P.); (J.J.V.-R.); (J.G.T.-R.)
| | - María Magdalena González-Pérez
- Department of Wood, Cellulose and Paper, University Center for Exact Sciences and Engineering, University of Guadalajara, km 15.5 at the Guadalajara-Nogales Highway, Zapopan 45220, Mexico; (M.G.L.-R.); (S.L.M.-S.); (M.M.G.-P.); (J.J.V.-R.); (J.G.T.-R.)
| | - Manuel Alberto Gallardo-Sánchez
- Department of Civil Engineering and Topography, University Center for Exact Sciences and Engineering, University of Guadalajara, Marcelino Garcia Barragan Street, Number 1451, Guadalajara 44430, Mexico;
| | - Gabriel Landázuri-Gómez
- Department of Chemical Engineering, University Center for Exact Sciences and Engineering, University of Guadalajara, Marcelino Garcia Barragan Street, Number 1451, Guadalajara 44430, Mexico; (G.L.-G.); (T.D.-V.)
| | - J. Jesús Vargas-Radillo
- Department of Wood, Cellulose and Paper, University Center for Exact Sciences and Engineering, University of Guadalajara, km 15.5 at the Guadalajara-Nogales Highway, Zapopan 45220, Mexico; (M.G.L.-R.); (S.L.M.-S.); (M.M.G.-P.); (J.J.V.-R.); (J.G.T.-R.)
| | - Tania Diaz-Vidal
- Department of Chemical Engineering, University Center for Exact Sciences and Engineering, University of Guadalajara, Marcelino Garcia Barragan Street, Number 1451, Guadalajara 44430, Mexico; (G.L.-G.); (T.D.-V.)
| | - José Guillermo Torres-Rendón
- Department of Wood, Cellulose and Paper, University Center for Exact Sciences and Engineering, University of Guadalajara, km 15.5 at the Guadalajara-Nogales Highway, Zapopan 45220, Mexico; (M.G.L.-R.); (S.L.M.-S.); (M.M.G.-P.); (J.J.V.-R.); (J.G.T.-R.)
| | - Emma Rebeca Macias-Balleza
- Department of Chemical Engineering, University Center for Exact Sciences and Engineering, University of Guadalajara, Marcelino Garcia Barragan Street, Number 1451, Guadalajara 44430, Mexico; (G.L.-G.); (T.D.-V.)
| | - Salvador García-Enriquez
- Department of Wood, Cellulose and Paper, University Center for Exact Sciences and Engineering, University of Guadalajara, km 15.5 at the Guadalajara-Nogales Highway, Zapopan 45220, Mexico; (M.G.L.-R.); (S.L.M.-S.); (M.M.G.-P.); (J.J.V.-R.); (J.G.T.-R.)
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Mumtha C, Subashri D, Mahalingam PU. Enhancing biohydrogen production from mono-substrates and co-substrates using a novel bacterial strains. 3 Biotech 2023; 13:270. [PMID: 37449248 PMCID: PMC10335983 DOI: 10.1007/s13205-023-03687-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/25/2023] [Indexed: 07/18/2023] Open
Abstract
The staggering increase in pollution associated with a sharp tightening in global energy demand is a major concern for organic substances. Renewable biofuel production through simultaneous waste reduction is a sustainable approach to meet this energy demand. This study co-fermentation of dairy whey and SCB was performed using mixed and pure bacterial cultures of Salmonella bongori, Escherichia coli, and Shewanella oneidensis by dark fermentation process for hydrogen production. The maximum H2 production was 202.7 ± 5.5 H2/mL/L, 237.3 ± 6.0 H2/mL/L, and 198 ± 9.9 H2/mL/L obtained in fermentation reactions containing dairy whey, solid and liquid hydrolysis of pretreated sugarcane bagasse as mono-substrates. The H2 production was greater in co-substrate by 347.3 ± 18.5 H2/mL/L under optimized conditions (pH 7.0, temperature 37 °C, substrate concentration 30:50 g/L) than expected in mono-substrate conditions, which confirms that co-fermentation of different substrates enhances the H2 potential. Fermentation medium during bio-H2 production under GC analysis has stated that using mixed cultures in dark fermentation favored acetic acid and butyric acid. Co-substrate degradation produces ethyl alcohol, benzoic acid, propionic acid, and butanol as metabolic by-products. The difference in the treated and untreated substrate and carbon enrichment in the substrates was evaluated by FT-IR analysis. The present study justifies that rather than the usage of mono-substrate for bio-H2 production, the co-substrate provided highly stable H2 production by mixed bacterial cultures. Fabricate the homemade single-chamber microbial fuel cell to generate electricity. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03687-9.
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Affiliation(s)
- Chelladurai Mumtha
- Department of Biology, The Gandhigram Rural Institute (Deemed to Be University), Gandhigram, Dindigul, 624 302 Tamil Nadu India
| | - Dhanasekaran Subashri
- Department of Biology, The Gandhigram Rural Institute (Deemed to Be University), Gandhigram, Dindigul, 624 302 Tamil Nadu India
| | - Pambayan Ulagan Mahalingam
- Department of Biology, The Gandhigram Rural Institute (Deemed to Be University), Gandhigram, Dindigul, 624 302 Tamil Nadu India
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Cellulose-based bio-adsorbent from TEMPO-oxidized natural loofah for effective removal of Pb(II) and methylene blue. Int J Biol Macromol 2022; 218:285-294. [PMID: 35870625 DOI: 10.1016/j.ijbiomac.2022.07.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/13/2022] [Accepted: 07/17/2022] [Indexed: 11/22/2022]
Abstract
Excessive discharge of inorganic and organic contaminants in water poses a serious threat to the ecosystems. However, most synthetic adsorbents lack cost-effectiveness in terms of preparation. Interestingly, loofah sponge (LS) was a natural absorbent that could effectively remove pollutions in wastewater, but its adsorption capacity is barely satisfactory. Herein, we present a novel strategy of TEMPO-oxidized loofah sponge (TOLS) to boost the adsorption performance of LS. The batch experiments demonstrated that the maximum removal capacity of TOLS for Pb(II) and methylene blue (MB) was 96.6 mg/g and 10.0 mg/g, respectively, which were 3.5 and 1.3 times that of pristine LS. Notably, the continuous-flow reaction testing of the mixed solution revealed that the elimination rate of Pb(II) and MB was still better than 90 % even after 16 h. Such excellent performance was benefit from the enhanced specific surface area and surface carboxyl content of TOLS. This work offers new insights into the rational development of multifunctional and inexpensive cellulose-based bio-adsorbents for wastewater remediation.
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Mohammad A, Singh DN, Podlasek A, Osinski P, Koda E. Leachate characteristics: Potential indicators for monitoring various phases of municipal solid waste decomposition in a bioreactor landfill. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 309:114683. [PMID: 35180441 DOI: 10.1016/j.jenvman.2022.114683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/24/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Leachate is a contaminated liquid generated during the bio-chemical decomposition processes of municipal solid waste (MSW) that occurred at semi-solid or solid-state in a bioreactor landfill (BLF). Conceptually, leachate from a BLF is analogous to the urine generated in the 'human body', on which the medical practitioners rely to diagnose and remediate ailments. In line with this practice, to monitor the complex MSW decomposition processes, prolonged investigations were performed to establish the temporal variation of different chemical parameters (such as pH, electrical conductivity, chemical oxygen demand, organic- and inorganic carbon, nitrate- and ammonium-nitrogen, sugars and volatile fatty acids) of the leachate collected from different cells (age≈ 6-48 months) of a fully functional BLF in Mumbai, India. Furthermore, to understand the effect of the climate, MSW composition and landfill operating conditions on the rate of the decomposition process, chemical parameters of the leachate obtained from a landfill located in the central part of Poland were compared with the BLF. The study reveals that the chemical parameters, except for the pH, evince a rapid reduction with time and attain a constant value, which indicates the 'stabilized MSW'. Also, native microorganisms that are an integral part of MSW consume volatile fatty acids within a year in the BLF, which facilitate the rapid transformation of the decomposition process from acidogenesis and acetogenesis to the methanogenesis phase. It is worth iterating here that based on the long-term field study, a convenient and efficient methodology, which is currently missing from the literature, has been established to understand the kinetics of different phases of anaerobic decomposition. This study would be very helpful to the landfill operators, who are interested in accelerating MSW decomposition by augmenting leachate properties.
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Affiliation(s)
- Arif Mohammad
- Department of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.
| | - Devendra Narain Singh
- Department of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.
| | - Anna Podlasek
- Institute of Civil Engineering, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, Warsaw, 02-776, Poland.
| | - Piotr Osinski
- Institute of Civil Engineering, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, Warsaw, 02-776, Poland.
| | - Eugeniusz Koda
- Institute of Civil Engineering, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, Warsaw, 02-776, Poland.
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Anand S, Muthu Kumar S, Mukherjee K, Padmanabhan P. Insight into fermentable sugar recovery process from sugarcane bagasse: in silico elucidation of enzymatic hydrolysis and techno-economic assessment. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2022.2040243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shreya Anand
- Department of Bioengineering & Biotechnology, Birla Institute of Technology, Ranchi, India
| | - Sampath Muthu Kumar
- Department of Bioengineering & Biotechnology, Birla Institute of Technology, Ranchi, India
| | - Koel Mukherjee
- Department of Bioengineering & Biotechnology, Birla Institute of Technology, Ranchi, India
| | - Padmini Padmanabhan
- Department of Bioengineering & Biotechnology, Birla Institute of Technology, Ranchi, India
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Performance Enhancement of Self-Cleaning Cotton Fabric with ZnO NPs and Dicarboxylic Acids. CRYSTALS 2022. [DOI: 10.3390/cryst12020214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this paper, we explore the self-cleaning and washing durability of green-prepared ZnO NPs combined with cotton fabrics. Honeysuckle extract was used to prepare ZnO NPs with an average particle size of 15.3 nm. Cotton fabrics were then treated with oxalic acid (OA), tartaric acid (TA), and succinic acid (SA) as cross-linking agents, sodium hypophosphite as a catalyst, and after that, the ZnO NPs were applied to the cross-linked cotton fabrics by the padding to prepare the self-cleaning cotton fabrics. The morphology and structure of the fabric samples were characterized using FTIR, scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDS), and XRD. The optical properties of the cotton fabric samples were discussed by UV-vis diffuse reflectance spectrum, and the self-cleaning performance, wrinkle recovery angle and ultraviolet protection performance of the cotton fabric samples were analyzed. The results showed that the carboxyl groups of TA, OA, and SA were esterified with hydroxyl groups of the cotton fiber and formed a film on the surface of the cotton fabrics. ZnO NPs were successfully loaded onto the cotton fabrics by strong electrostatic interaction, causing the improvement of the washing resistance of the cross-linked fabrics. In addition, compared with uncross-linked fabrics, the wrinkle recovery performance of the cross-linked fabrics had also been greatly improved, and the UV protection factor reached 50+, thus obtaining an excellent self-cleaning, multifunctional cotton-based textile with anti-wrinkle and anti-ultraviolet properties.
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Aggarwal N, Pal P, Sharma N, Saravanamurugan S. Consecutive Organosolv and Alkaline Pretreatment: An Efficient Approach toward the Production of Cellulose from Rice Straw. ACS OMEGA 2021; 6:27247-27258. [PMID: 34693145 PMCID: PMC8529666 DOI: 10.1021/acsomega.1c04030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Indexed: 06/13/2023]
Abstract
The efficient removal of silica from rice straw and separation of its major components is essential for further valorization to produce value-added products. With regard to this, the isolation of cellulose (CEL), hemicellulose (HEM), and lignin (LIG) is imperative but quite challenging. Among several pretreatments of lignocellulosic biomass, the organosolv approach is deemed as one of the promising methods. Here, we present two different two-step approaches for the removal of silica and disintegration of significant components from rice straw, especially CEL; (i) base pretreatment, followed by organosolv treatment in the presence of organic acid, and (ii) organosolv pretreatment in the presence of organic acid, followed by base treatment. After each treatment, the recovered solid components are confirmed by various characterization techniques such as Fourier-transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy, and thermogravimetric analysis. Method 2 demonstrates 82% total removal of HEM and LIG along with 90.4% of silica removal from rice straw to obtain CEL. Furthermore, the obtained crude CEL is found to be with a purity of 78%. Excellent removal of silica (90.4%) reflects that in a test study, the crude CEL obtained from method 2 gives a higher yield of butyl glucosides (59.6%) than rice straw, which affords 45.0% of butyl glucosides.
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Zielińska D, Szentner K, Waśkiewicz A, Borysiak S. Production of Nanocellulose by Enzymatic Treatment for Application in Polymer Composites. MATERIALS 2021; 14:ma14092124. [PMID: 33922118 PMCID: PMC8122419 DOI: 10.3390/ma14092124] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/18/2021] [Accepted: 04/20/2021] [Indexed: 12/16/2022]
Abstract
In the last few years, the scientific community around the world has devoted a lot of attention to the search for the best methods of obtaining nanocellulose. In this work, nanocellulose was obtained in enzymatic reactions with strictly defined dispersion and structural parameters in order to use it as a filler for polymers. The controlled enzymatic hydrolysis of the polysaccharide was carried out in the presence of cellulolytic enzymes from microscopic fungi-Trichoderma reesei and Aspergillus sp. It has been shown that the efficiency of bioconversion of cellulose material depends on the type of enzymes used. The use of a complex of cellulases obtained from a fungus of the genus Trichoderma turned out to be an effective method of obtaining cellulose of nanometric dimensions with a very low polydispersity. The effect of cellulose enzymatic reactions was assessed using the technique of high-performance liquid chromatography coupled with a refractometric detector, X-ray diffraction, dynamic light scattering and Fourier transform infrared spectroscopy. In the second stage, polypropylene composites with nanometric cellulose were obtained by extrusion and injection. It was found by means of X-ray diffraction, hot stage optical microscopy and differential scanning calorimetry that nanocellulose had a significant effect on the supermolecular structure, nucleation activity and the course of phase transitions of the obtained polymer nanocomposites. Moreover, the obtained nanocomposites are characterized by very good strength properties. This paper describes for the first time that the obtained cellulose nanofillers with defined parameters can be used for the production of polymer composites with a strictly defined polymorphic structure, which in turn may influence future decision making about obtaining materials with controllable properties, e.g., high flexibility, enabling the thermoforming process of packaging.
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Affiliation(s)
- Daria Zielińska
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland;
| | - Kinga Szentner
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 75, 60625 Poznan, Poland; (K.S.); (A.W.)
| | - Agnieszka Waśkiewicz
- Department of Chemistry, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 75, 60625 Poznan, Poland; (K.S.); (A.W.)
| | - Sławomir Borysiak
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland;
- Correspondence: ; Tel.: +48-616-653-549
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Zhu J, Li H, Wang Y, Wang Y, Yan J. Preparation of Ag NPs and Its Multifunctional Finishing for Cotton Fabric. Polymers (Basel) 2021; 13:1338. [PMID: 33921912 PMCID: PMC8073516 DOI: 10.3390/polym13081338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/05/2021] [Accepted: 04/16/2021] [Indexed: 11/20/2022] Open
Abstract
To explore the combination of silver nanoparticles (Ag NPs) prepared in a green manner with cotton fabrics and the washing durability of the fabric after the combination. In this paper, the natural material, honeysuckle extract, was used as a reducing agent to prepare the Ag NPs' solution. The structure and size of Ag NPs were analyzed using ultraviolet-visible spectrophotometry (UV-vis), transmission electron microscopy (TEM), dynamic light scattering (DLS), X-ray powder diffraction (XRD), and Fourier transform infrared (FT-IR) spectroscopy characterization. The results showed that Ag+ was successfully reduced to Ag0 by the honeysuckle extract, the particle size was about 10.59 nm, and the potential was -42.9 mV, so it had strong electrostatic repulsion and good stability. Meanwhile, it was found that the synthesized Ag NPs were well coated by the honeysuckle extract, so they would not aggregate. Then, the cotton fabric was finished with Ag NPs' solution by the dipping method using a complex of polymaleic acid (PMA) and citric acid (CA) as a cross-linking agent to fix Ag NPs on the cotton fabric. The structures of cotton fabrics before and after finishing were characterized using FT-IR, scanning electron microscopy (SEM), XRD, X-ray photoelectron spectroscopy (XPS), and thermogravimetric (TG) analysis, and the multifunctional properties of the finished cotton fabrics were explored by measuring the antibacterial rate, the wrinkle recovery angle (WRA), and the UV protection factor (UPF) value. The results show that Ag NPs were successfully loaded onto cotton fabric, and the PMA + CA compound was successfully cross-linked to the fabric. The cross-linked Ag NPs' cotton fiber was rougher than that before cross-linking, and its TG stability improved. The PMA + CA compound fixed Ag NPs on the cotton fabric through chemical bonds, so it still had a 99% antibacterial effect against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) after 50 washings. Compared with unfinished cotton fabric, the UPF value and WRA of the cross-linked Ag NPs cotton increased by 34.09 and 98°, respectively, and its color did not change much.
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Affiliation(s)
| | - Hong Li
- Department of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China; (J.Z.); (Y.W.); (Y.W.); (J.Y.)
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Bendourou FE, Suresh G, Laadila MA, Kumar P, Rouissi T, Dhillon GS, Zied K, Brar SK, Galvez R. Feasibility of the use of different types of enzymatically treated cellulosic fibres for polylactic acid (PLA) recycling. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 121:237-247. [PMID: 33385952 DOI: 10.1016/j.wasman.2020.11.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 11/22/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
In the present study, the potential use of cellulosic microfibers (CMFs) extracted from hemp fiber (HF) and pulp and paper solid waste (mixed sludge (MS), deinked sludge (DS)) as a reinforcing agent in novel bio composite materials produced from recycled Polylactic acid (rPLA) was investigated. CMFs were extracted and treated using physicochemical method followed by enzymatic treatment with laccase and cellulase. The effects of CMFs concentrations (1.5, 3 and 6% w/w) and fiber size (75 μm-1.7 mm) on the mechanical properties (impact and tensile) and biodegradability of the biocomposite samples were investigated. A modified interfacial adhesion between rPLA matrix and the three fibers used, was clearly observed through mechanical tests due to alkali and enzymatic treatments. The use of different types of enzymatically treated cellulosic fibers for polylactic acid (PLA) recycling was assessed by Scaning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The combined physicochemical and enzymatic treatments led to a considerable size reduction of the cellulosic fibers (HF, MS and DS) resulting in the enhanced interfacial adhesion between rPLA matrix and fibers. The biocomposite obtained with rPLA with HF gave the most favorable values for Young's modulus (324.53 ± 3.10 MPa, p-value 0.03), impact strength (27.61 ± 2.94 kJ/m2, p-value 0.01) and biodegradation rate (1.97%).
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Affiliation(s)
| | - Gayatri Suresh
- INRS-ETE, 490, de la Couronne, Québec G1K 9A9, QC, Canada
| | - Mohamed Amine Laadila
- INRS-ETE, 490, de la Couronne, Québec G1K 9A9, QC, Canada; Laval university Chemical Engineering Department, Laval University, 1065 avenue de la Médecine, Québec, QC, Canada, G1V0A6; Investissement Québec-CRIQ,333 Rue Franquet,Québec, QC G1P 4C7, Canada
| | - Pratik Kumar
- INRS-ETE, 490, de la Couronne, Québec G1K 9A9, QC, Canada
| | - Tarek Rouissi
- INRS-ETE, 490, de la Couronne, Québec G1K 9A9, QC, Canada
| | - Gurpreet S Dhillon
- INRS-ETE, 490, de la Couronne, Québec G1K 9A9, QC, Canada; Dept. Agricultural, Food and Nutritional Sciences (AFNS), University of Alberta, Edmonton, AB, Canada
| | - Khiari Zied
- Center for Applied Research and Innovation, Lethbridge College, Alberta T1K 1L6, Canada
| | - Satinder K Brar
- INRS-ETE, 490, de la Couronne, Québec G1K 9A9, QC, Canada; Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario M3J 1P3, Canada.
| | - Rosa Galvez
- Département de Genie Civil, Université Laval, Québec G1K 7P4, Canada
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Enhanced Hydrolysis of Cellulose to Reducing Sugars on Kaolinte Clay Activated by Mineral Acid. Catal Letters 2021. [DOI: 10.1007/s10562-020-03497-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mohapatra S, Ranjan Mishra R, Nayak B, Chandra Behera B, Das Mohapatra PK. Development of co-culture yeast fermentation for efficient production of biobutanol from rice straw: A useful insight in valorization of agro industrial residues. BIORESOURCE TECHNOLOGY 2020; 318:124070. [PMID: 32942093 DOI: 10.1016/j.biortech.2020.124070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/28/2020] [Accepted: 08/29/2020] [Indexed: 06/11/2023]
Abstract
Escalating environmental concerns and petroleum demands leads into the present study. In this investigation delignification of rice straw was optimized by NaOH and H2SO4 pretreatment using L16 Taguchi orthogonal array. NaOH pretreatment revealed higher delignification as compared to H2SO4 and; further subjected to separate enzymatic hydrolysis and co-fermentation (SHCF) using RSM as the SHCF demonstrated a maximum glucose and xylose yield of 575 and 205 mg/g. Further, butanol concentration of 4.32 g/L was achieved from 20 g/L of sugar loadings by co-culture of Saccharomyces cerevisiae and Pichia sp. at 72 h of incubation time which was 79.25% higher as compared to monocultures of Pichia sp. Scale-up experiments with higher sugar loadings (90 g/L) demonstrated a butanol concentration of 13.3 g/L. The release of amino acids in co-culture and monoculture systems demonstrated that the addition of S. cerevisiae promoted the butanol synthesis pathway which led to higher butanol concentration.
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Affiliation(s)
- Sonali Mohapatra
- Department of Biotechnology, College of Engg. & Technology, Kalinga Nagar, Ghatikia, Bhubaneswar, Odisha 751003, India
| | - Rashmi Ranjan Mishra
- Department of Biotechnology, MITS School of Biotechnology, KIIT Road, Infocity, Patia, Bhubaneswar, Odisha 751024, India
| | - Bikash Nayak
- Department of Biotechnology, MITS School of Biotechnology, KIIT Road, Infocity, Patia, Bhubaneswar, Odisha 751024, India
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Jiang Y, Yu G, Zhou Y, Liu Y, Feng Y, Li J. Effects of sodium alginate on microstructural and properties of bacterial cellulose nanocrystal stabilized emulsions. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125474] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abral H, Ariksa J, Mahardika M, Handayani D, Aminah I, Sandrawati N, Sugiarti E, Muslimin AN, Rosanti SD. Effect of heat treatment on thermal resistance, transparency and antimicrobial activity of sonicated ginger cellulose film. Carbohydr Polym 2020; 240:116287. [PMID: 32475568 DOI: 10.1016/j.carbpol.2020.116287] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/10/2020] [Accepted: 04/10/2020] [Indexed: 11/26/2022]
Abstract
Transparent film with high thermal resistance and antimicrobial properties has many applications in the food packaging industry particularly packaging for reheatable food. This work investigates the effects of heat treatment on the thermal resistance, stability of transparency and antimicrobial activity of transparent cellulose film. The film from ginger nanocellulose fibers was prepared with chemicals and ultrasonication. The dried film was heated at 150 °C for 30, 60, 90, or 120 min. The unheated and sonicated film had the lowest crystallinity index and the lowest thermal properties. After heating, the film became brownish-yellow resulting from thermal oxidation. The reheated film had higher thermal resistance than unheated film. Heating led to further relaxation of cellulose network evidenced by shifting of the XRD peak positions toward lower values. The antimicrobial activity decreased due to heating. Average opacity value increases after short heating durations. It was relatively stable for further heating.
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Affiliation(s)
- Hairul Abral
- Department of Mechanical Engineering, Andalas University, 25163, Padang, Sumatera Barat, Indonesia.
| | - Jeri Ariksa
- Department of Mechanical Engineering, Andalas University, 25163, Padang, Sumatera Barat, Indonesia
| | - Melbi Mahardika
- Department of Mechanical Engineering, Andalas University, 25163, Padang, Sumatera Barat, Indonesia
| | - Dian Handayani
- Laboratory of Sumatran Biota, Faculty of Pharmacy, Andalas University, 25163, Padang, Sumatera Barat, Indonesia
| | - Ibtisamatul Aminah
- Laboratory of Sumatran Biota, Faculty of Pharmacy, Andalas University, 25163, Padang, Sumatera Barat, Indonesia
| | - Neny Sandrawati
- Laboratory of Sumatran Biota, Faculty of Pharmacy, Andalas University, 25163, Padang, Sumatera Barat, Indonesia
| | - Eni Sugiarti
- Laboratory of High Resistant Materials, Research Center for Physics, Indonesian Institute of Sciences (LIPI) Serpong, Indonesia
| | - Ahmad Novi Muslimin
- Laboratory of High Resistant Materials, Research Center for Physics, Indonesian Institute of Sciences (LIPI) Serpong, Indonesia
| | - Santi Dewi Rosanti
- Laboratory of High Resistant Materials, Research Center for Physics, Indonesian Institute of Sciences (LIPI) Serpong, Indonesia
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15
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Graphene oxide-assisted ethanol reflux extraction of total flavonoids from Ginkgo biloba leaves: study of kinetics and mechanism. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-019-00934-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Jin Q, Ma L, Zhou W, Shen Y, Fernandez-Delgado O, Li X. Smart paper transformer: new insight for enhanced catalytic efficiency and reusability of noble metal nanocatalysts. Chem Sci 2020; 11:2915-2925. [PMID: 34122792 PMCID: PMC8157501 DOI: 10.1039/c9sc05287a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Although noble metal nanocatalysts show superior performance to conventional catalysts, they can be problematic when balancing catalytic efficiency and reusability. In order to address this dilemma, we developed a smart paper transformer (s-PAT) to support nanocatalysts, based on easy phase conversion between paper and pulp, for the first time. The pulp phase was used to maintain the high catalytic efficiency of the nanocatalysts and the transformation to paper enabled their high reusability. Herein, as an example of smart paper transformers, a novel chromatography paper-supported Au nanosponge (AuNS/pulp) catalyst was developed through a simple water-based preparation process for the successful reduction of p-nitrophenol to demonstrate the high catalytic efficiency and reusability of the noble metal nanocatalyst/pulp system. The composition, structure, and morphology of the AuNS/pulp catalyst were characterized by XRD, TGA, FE-SEM, ICP, TEM, FT-IR, and XPS. The AuNS/pulp catalyst was transformed into the pulp phase during the catalytic reaction and into the paper phase to recover the catalysts after use. Owing to this smart switching of physical morphology, the AuNS/pulp catalyst was dispersed more evenly in the solution. Therefore, it exhibited excellent catalytic performance for p-nitrophenol reduction. Under optimal conditions, the conversion rate of p-nitrophenol reached nearly 100% within 6 min and the k value of AuNS/pulp (0.0106 s−1) was more than twice that of a traditional chromatography paper-based catalyst (0.0048 s−1). Additionally, it exhibited outstanding reusability and could maintain its high catalytic efficiency even after fifteen recycling runs. Accordingly, the unique phase switching of this smart paper transformer enables Au nanosponge to transform into a highly efficient and cost-effective multifunctional catalyst. The paper transformer can support various nanocatalysts for a wide range of applications, thus providing a new insight into maintaining both high catalytic efficiency and reusability of nanocatalysts in the fields of environmental catalysis and nanomaterials. A smart paper transformer supported nanocatalyst platform is developed based on the facile phase conversion between paper and pulp for both high-efficiency and high-reusability catalysis, with wide applications demonstrated by using Au nanosponge.![]()
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Affiliation(s)
- Qijie Jin
- Department of Chemistry and Biochemistry, University of Texas at El Paso El Paso Texas 79968 USA .,College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 PR China
| | - Lei Ma
- Department of Chemistry and Biochemistry, University of Texas at El Paso El Paso Texas 79968 USA
| | - Wan Zhou
- Department of Chemistry and Biochemistry, University of Texas at El Paso El Paso Texas 79968 USA
| | - Yuesong Shen
- College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 PR China
| | - Olivia Fernandez-Delgado
- Department of Chemistry and Biochemistry, University of Texas at El Paso El Paso Texas 79968 USA
| | - XiuJun Li
- Department of Chemistry and Biochemistry, University of Texas at El Paso El Paso Texas 79968 USA .,Biomedical Engineering, Border Biomedical Research Center, University of Texas at El Paso El Paso Texas 79968 USA.,Environmental Science and Engineering, University of Texas at El Paso El Paso Texas 79968 USA
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17
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Statistical optimization of a cellulase from Aspergillus glaucus CCHA for hydrolyzing corn and rice straw by RSM to enhance yield of reducing sugar. Biotechnol Lett 2020; 42:583-595. [PMID: 31980972 DOI: 10.1007/s10529-020-02804-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 01/13/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The unique GH5 cellulase, AgCMCase, from Aspergillus glaucus CCHA was identified and characterized as having high cellulose and straw hydrolysis activities that were thermostable, pH stable and salt-tolerant. Therefore, it is a potential straw-degradation enzyme that can release reducing sugars in industrial applications. To increase the efficiency of the AgCMCase' hydrolysis of straw to release simple sugars, response surface methodology (RSM) was introduced to optimize hydrolysis parameters such as pH, temperature, reaction time and enzyme dose. RESULTS The enzyme showed only one major protein band from the fermentation broth by the Pichia pastoris GS115 expression. The crude enzyme (without purification) showed a satisfactory capability to hydrolyze CMC-Na after 4 days of production. Here, the crude AgCMCase also showed cellulose and straw hydrolysis capabilities as assessed by scanning electron microscopic and Fourier-transform infrared spectroscopic analyses. A high-performance liquid chromatographic analysis demonstrated that the degradation of corn and rice straw by crude AgCMCase mainly produced glucose and cellobiose. Temperature, reaction time and enzyme dose were the significant variables affecting corn and rice straw degradation. After the optimization of RSM, a model was proposed to predict 1.48% reducing sugar yield with the optimum temperature (51.45 °C) and reaction time (3.84 h) from the straw degradation. The reaction of crude AgCMCase and rice straw in the optimized condition resulted in reducing sugar production of 1.61% that agrees the prediction. CONCLUSION Our findings suggest that the crude AgCMCase is suitable to be used in straw conversion.
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18
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Enzymatic hydrolysis of cellulose using extracts from insects. Carbohydr Res 2019; 485:107811. [PMID: 31526927 DOI: 10.1016/j.carres.2019.107811] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 09/02/2019] [Accepted: 09/08/2019] [Indexed: 11/20/2022]
Abstract
The use of Zophobas morio extracts in the aspect of cellulose hydrolysis is presented for the first time. The aim of this study was to investigate the action of enzymes obtained from Z. morio on cellulose hydrolysis and to determine their influence on the structural properties of cellulose with use the Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC). Cellulose hydrolysis products were analyzed by high performance liquid chromatography (HPLC). This analysis indicated that microcrystalline cellulose with smaller particle size was more susceptible to enzymatically treatment. Moreover, our investigation of cellulase activity showed a different profile of the used enzyme during particular developmental stages of Z. morio. Midgut extracts obtained from adult insects are more effective in degrading cellulose than extracts from larvae. The analysis of cellulose hydrolysis confirms that the efficiency of this reaction also depends on the structure of cellulosic materials and internal conditions of enzymatic reaction. In this study the cellulolytic activity of Z. morio midgut extracts showed that these insects could be valuable sources of cellulases.
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19
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Juárez-Luna GN, Favela-Torres E, Quevedo IR, Batina N. Enzymatically assisted isolation of high-quality cellulose nanoparticles from water hyacinth stems. Carbohydr Polym 2019; 220:110-117. [DOI: 10.1016/j.carbpol.2019.05.058] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/07/2019] [Accepted: 05/20/2019] [Indexed: 11/28/2022]
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20
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Cichosz S, Masek A. Cellulose Fibers Hydrophobization via a Hybrid Chemical Modification. Polymers (Basel) 2019; 11:E1174. [PMID: 31336791 PMCID: PMC6681115 DOI: 10.3390/polym11071174] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/04/2019] [Accepted: 07/09/2019] [Indexed: 11/17/2022] Open
Abstract
The following article highlights the importance of an indispensable process in cellulose fibers (UFC100) modification which may change the biopolymer properties-drying. The reader is provided with a broad range of information considering the drying process consequences on the chemical treatment of the cellulose. This research underlines the importance of UFC100 moisture content reduction considering polymer composites application with the employment of a technique different than thermal treating. Therefore, a new hybrid chemical modification approach is introduced. It consists of two steps: solvent exchange (with ethanol either hexane) and chemical treatment (maleic anhydride-MA). With the use of Fourier-transform infrared spectroscopy (FT-IR), it has been proven that the employment of different solvents may contribute to the higher yield of the modification process as they cause rearrangements in hydrogen bonds structure, swell the biopolymer and, therefore, affect its molecular packing. Furthermore, according to the thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), the improvement in fibers thermal resistance was noticed, e.g., shift in the value of 5% temperature mass loss from 240 °C (regular modification) to 306 °C (while solvent employed). Moreover, the research was broadened with cellulose moisture content influence on the modification process-tested fibers were either dried (D) or not dried (ND) before the hybrid chemical treatment. According to the gathered data, D cellulose exhibits elevated thermal resistance and ND fibers are more prone to the MA modification. What should be emphasized, in the case of all carried out UFC100 treatments, is that a decrease in moisture contend was evidenced-from approximately 4% in case of thermal drying to 1.7% for hybrid chemical modification. This is incredibly promising considering the possibility of the treated fibers application in polymer matrix.
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Affiliation(s)
- Stefan Cichosz
- Lodz University of Technology, Institute of Polymer and Dye Technology, Faculty of Chemistry, Stefanowskiego 12/16, 90-924 Lodz, Poland
| | - Anna Masek
- Lodz University of Technology, Institute of Polymer and Dye Technology, Faculty of Chemistry, Stefanowskiego 12/16, 90-924 Lodz, Poland.
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21
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Chen L, Wei Y, Shi M, Li Z, Zhang SH. An Archaeal Chitinase With a Secondary Capacity for Catalyzing Cellulose and Its Biotechnological Applications in Shell and Straw Degradation. Front Microbiol 2019; 10:1253. [PMID: 31244795 PMCID: PMC6579819 DOI: 10.3389/fmicb.2019.01253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/20/2019] [Indexed: 12/20/2022] Open
Abstract
Numerous thermostable enzymes have been reported from the hyperthermophilic archaeon Thermococcus kodakarensis KOD1, which made it an attractive resource for gene cloning. This research reported a glycosyl hydrolase (Tk-ChiA) form T. Kodakarensis with dual hydrolytic activity due to the presence of three binding domains with affinity toward chitin and cellulose. The Tk-ChiA gene was cloned and expressed on Pichia pastoris GS115. The molecular weight of the purified Tk-ChiA is about 130.0 kDa. By using chitosan, CMC-Na and other polysaccharides as substrates, we confirmed that Tk-ChiA with dual hydrolysis activity preferably hydrolyzes both chitosan and CMC-Na. Purified Tk-ChiA showed maximal activity for hydrolyzing CMC-Na at temperature 65°C and pH 7.0. It showed thermal stability on incubation for 4 h at temperatures ranging from 70 to 80°C and remained more than 40% of its maximum activity after pre-incubation at 100°C for 4 h. Particularly, Tk-ChiA is capable of degrading shrimp shell and rice straw through scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) analysis. The main factors affecting shell and straw degradation were determined to be reaction time and temperature; and both factors were optimized by central composite design (CCD) of response surface methodology (RSM) to enhance the efficiency of degradation. Our findings suggest that Tk-ChiA with dual thermostable hydrolytic activities maybe a promising hydrolase for shell and straw waste treatment, conversion, and utilization.
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Affiliation(s)
- Lina Chen
- College of Plant Sciences, Jilin University, Changchun, China.,College of Food Science and Engineering, Changchun University, Changchun, China
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, China
| | - Mao Shi
- Jilin Provincial Center for Disease Control and Prevention, Changchun, China
| | - Zhengqun Li
- College of Plant Sciences, Jilin University, Changchun, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, China
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22
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Yee YC, Hashim R, Mohd Yahya AR, Bustami Y. Colorimetric Analysis of Glucose Oxidase-Magnetic Cellulose Nanocrystals (CNCs) for Glucose Detection. SENSORS (BASEL, SWITZERLAND) 2019; 19:E2511. [PMID: 31159318 PMCID: PMC6603789 DOI: 10.3390/s19112511] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/27/2019] [Accepted: 04/29/2019] [Indexed: 01/26/2023]
Abstract
Glucose oxidase (EC 1.1.3.4) sensors that have been developed and widely used for glucose monitoring have generally relied on electrochemical principle. In this study, the potential use of colorimetric method for glucose detection utilizing glucose oxidase-magnetic cellulose nanocrystals (CNCs) is explored. Magnetic cellulose nanocrystals (magnetic CNCs) were fabricated using iron oxide nanoparticles (IONPs) and cellulose nanocrystals (CNCs) via electrostatic self-assembly technique. Glucose oxidase was successfully immobilized on magnetic CNCs using carbodiimide-coupling reaction. About 33% of GOx was successfully attached on magnetic CNCs, and the affinity of GOx-magnetic CNCs to glucose molecules was slightly higher than free enzymes. Furthermore, immobilization does not affect the specificity of GOx-magnetic CNCs towards glucose and can detect glucose from 0.25 mM to 2.5 mM. Apart from that, GOx-magnetic CNCs stored at 4 °C for 4 weeks retained 70% of its initial activity and can be recycled for at least ten consecutive cycles.
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Affiliation(s)
- Ying Chuin Yee
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11700, Malaysia.
| | - Rokiah Hashim
- Division of Bioresource, Paper and Coatings Technology, School of Industrial Technology, Universiti Sains Malaysia, Penang 11700, Malaysia.
| | | | - Yazmin Bustami
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11700, Malaysia.
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23
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Zhou Y, Yang M, Tong D, Yang H, Fang K. Eco-Friendly Ca-Montmorillonite Grafted by Non-Acidic Ionic Liquid Used as A Solid Acid Catalyst in Cellulose Hydrolysis to Reducing Sugars. Molecules 2019; 24:molecules24091832. [PMID: 31086032 PMCID: PMC6539098 DOI: 10.3390/molecules24091832] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/08/2019] [Accepted: 05/13/2019] [Indexed: 11/16/2022] Open
Abstract
An effective and friendly method was developed for the production of reducing sugars (RS) from the hydrolysis of cellulose over the solid catalyst of Ca-montmorillonite (Mt) grafted by non-acidic ionic liquid (Mt-IL) in water. The effect of mass ratio, water dosage, reaction temperature, and time were investigated in a batch reactor. Raw Mt showed only a 7.9% total reducing sugars (TRS) yield for the catalytic hydrolysis of cellulose in water. As the Mt was grafted by -SO3H and IL, the TRS yield greatly increased under the same reaction conditions. The highest TRS yield of 35.7% was obtained on the catalyst of Mt grafted by non-acidic IL at 200 °C with the mass ratio of catalyst to cellulose of 0.2 for 120 min. The high TRS yield for Mt-IL should be attributed to the synergistic effect of the dissolution of cellulose by IL and the exposed metal ions on the layer with water. Although the yield of TRS on Mt-IL decreased gradually with recycling runs, the decrease after the first run was not very serious compared to the fresh catalyst. This work provides a promising strategy for efficient cellulose hydrolysis into fine chemicals by Mt with non-acidic IL.
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Affiliation(s)
- Yang Zhou
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Miao Yang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Dongshen Tong
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Haiyan Yang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Kai Fang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
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24
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A bio-mechanical process for cellulose nanofiber production – Towards a greener and energy conservation solution. Carbohydr Polym 2019; 208:191-199. [DOI: 10.1016/j.carbpol.2018.12.071] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 11/19/2018] [Accepted: 12/21/2018] [Indexed: 01/05/2023]
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25
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Ishak N, Ku Ishak K, Bustami Y, Rokiah H. Evaluation of Cellulose Nanocrystals (CNCs) as Protein Adsorbent in stick water. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.matpr.2019.06.330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Pazhang M, Younesi FS, Mehrnejad F, Najavand S, Tarinejad A, Haghi M, Rashno F, Khajeh K. Ig-like Domain in Endoglucanase Cel9A from Alicyclobacillus acidocaldarius Makes Dependent the Enzyme Stability on Calcium. Mol Biotechnol 2018; 60:698-711. [PMID: 30062637 DOI: 10.1007/s12033-018-0105-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Endoglucanase Cel9A from Alicyclobacillus acidocaldarius (AaCel9A) has an Ig-like domain and the enzyme stability is dependent to calcium. In this study the effect of calcium on the structure and stability of the wild-type enzyme and the truncated form (the wild-type enzyme without Ig-like domain, AaCel9AΔN) was investigated. Fluorescence quenching results indicated that calcium increased and decreased the rigidity of the wild-type and truncated enzymes, respectively. RMSF results indicated that AaCel9A has two flexible regions (regions A and B) and deleting the Ig-like domain increased the truncated enzyme stability by decreasing the flexibility of region B probably through increasing the hydrogen bonds. Calcium contact map analysis showed that deleting the Ig-like domain decreased the calcium contacting residues and their calcium binding affinities, especially, in region B which has a role in calcium binding site in AaCel9A. Metal depletion and activity recovering as well as stability results showed that the structure and stability of the wild-type and truncated enzymes are completely dependent on and independent of calcium, respectively. Finally, one can conclude that the deletion of Ig-like domain makes AaCel9AΔN independent of calcium via decreasing the flexibility of region B through increasing the hydrogen bonds. This suggests a new role for the Ig-like domain which makes AaCel9A structure dependent on calcium.
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Affiliation(s)
- Mohammad Pazhang
- Department of Cellular and Molecular Biology, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran.
| | - Fereshteh S Younesi
- Department of Cellular and Molecular Biology, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Faramarz Mehrnejad
- Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran
| | - Saeed Najavand
- Department of Cellular and Molecular Biology, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Alireza Tarinejad
- Department of Biotechnology, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Mehrnaz Haghi
- Department of Cellular and Molecular Biology, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Fatemeh Rashno
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Khosro Khajeh
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
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27
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Waghmare PR, Patil SM, Jadhav SL, Jeon BH, Govindwar SP. Utilization of agricultural waste biomass by cellulolytic isolate Enterobacter sp. SUK-Bio. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.anres.2018.10.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Ma L, Ma Q, Guo G, Du L, Zhang Y, Cui Y, Xiao D. Optimization of sodium percarbonate pretreatment for improving 2,3-butanediol production from corncob. Prep Biochem Biotechnol 2018. [PMID: 29528267 DOI: 10.1080/10826068.2017.1387563] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Sodium percarbonate (SP), a kind of alkaline strong oxidant, was applied to corncob pretreatment. The optimized pretreatment conditions were at 4% (w/v) SP concentration with solid-to-liquid (SLR) ratio of 1:10 treating for 4 hr at 60°C. This pretreatment resulted in 91.06% of cellulose and 84.08% of hemicellulose recoveries with 34.09% of lignin removal in corncob. The reducing sugar yield from SP-pretreated corncob was 0.56 g/g after 72 hr of enzymatic hydrolysis, 1.75-folds higher than that from raw corncob. 2,3-butanediol production by Enterobacer cloacae in simultaneous saccharification fermentation was 29.18 g/L using SP-pretreated corncob as a substrate, which was 11.12 times of that using raw corncob. Scanning electron microscope, X-ray diffraction, and Fourier transform infrared spectra analysis indicated that physical characteristics, crystallinity, and structure of corncob had changed obviously after SP pretreatment. This simple and novel pretreatment method was effective for delignification and carbohydrate retention in microbial production of 2,3-butanediol from lignocellulose biomass.
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Affiliation(s)
- Lijuan Ma
- a Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key laboratory, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P. R. China
| | - Qing Ma
- a Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key laboratory, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P. R. China
| | - Gaojie Guo
- a Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key laboratory, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P. R. China
| | - Liping Du
- a Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key laboratory, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P. R. China
| | - Yingying Zhang
- a Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key laboratory, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P. R. China
| | - Youzhi Cui
- a Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key laboratory, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P. R. China
| | - Dongguang Xiao
- a Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Industrial Microbiology Key laboratory, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P. R. China
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29
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Prajapati BP, Kumar Suryawanshi R, Agrawal S, Ghosh M, Kango N. Characterization of cellulase from Aspergillus tubingensis NKBP-55 for generation of fermentable sugars from agricultural residues. BIORESOURCE TECHNOLOGY 2018; 250:733-740. [PMID: 29223094 DOI: 10.1016/j.biortech.2017.11.099] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 06/07/2023]
Abstract
The aim of this work was to characterize cellulase from Aspergillus tubingensis NKBP-55 for generation of fermentable sugars from agricultural residues. The strain produced high titres of cellulase (750 U/gds) on copra meal in solid state fermentation (SSF). The enzyme preparation also showed hemicellulolytic activities (U/gds) viz. endo-mannanase (1023), endo-xylanase (167), β-glucosidase (72) and α-galactosidase (54). Zymography revealed presence of six cellulases, six mannanases and one β-glucosidase. It effectively degraded sugarcane bagasse (SCB) and rice straw (RS) releasing xylose, glucose and cellobiose. One cellulase (Cat 1, Mr ∼65 kDa) was purified and characterized. It retained more than 50% activity at 70 °C after 150 mins and its activity was enhanced in the presence of Mn2+ ions (130%) and β-mercaptoethanol (140%). FTIR and 13C CP/MAS NMR analysis of the enzyme treated SCB and RS revealed degradation of cellulose and hemicellulose, while 1H and 13C liquid state NMR experiments confirmed release of glucose.
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Affiliation(s)
- Bhanu Pratap Prajapati
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Rahul Kumar Suryawanshi
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Sarika Agrawal
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Manasi Ghosh
- Department of Physics, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Naveen Kango
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India.
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Cartaxo da Costa Urtiga S, Aquino Azevedo de Lucena Gabi C, Rodrigues de Araújo Eleamen G, Santos Souza B, Pessôa HDLF, Marcelino HR, Afonso de Moura Mendonça E, Egito ESTD, Oliveira EE. Preparation and characterization of safe microparticles based on xylan. Drug Dev Ind Pharm 2017; 43:1601-1609. [DOI: 10.1080/03639045.2017.1326932] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Silvana Cartaxo da Costa Urtiga
- Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Petrópolis, Natal, Brazil
- Laboratório de Síntese e Vetorização de Moléculas (LSVM)., Universidade Estadual da Paraíba, João Pessoa, Brazil
| | | | | | - Bartolomeu Santos Souza
- Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Petrópolis, Natal, Brazil
| | | | - Henrique Rodrigues Marcelino
- Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Petrópolis, Natal, Brazil
| | | | - Eryvaldo Sócrates Tabosa do Egito
- Departamento de Farmácia, Laboratório de Sistemas Dispersos (LaSiD), Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Petrópolis, Natal, Brazil
| | - Elquio Eleamen Oliveira
- Laboratório de Síntese e Vetorização de Moléculas (LSVM)., Universidade Estadual da Paraíba, João Pessoa, Brazil
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31
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Evaluation of usefulness of 2DCorr technique in assessing physicochemical properties of bacterial cellulose. Carbohydr Polym 2017; 161:208-218. [DOI: 10.1016/j.carbpol.2016.12.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 12/21/2016] [Accepted: 12/24/2016] [Indexed: 11/21/2022]
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32
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Asha P, Divya J, Bright Singh IS. Purification and characterisation of processive-type endoglucanase and β-glucosidase from Aspergillus ochraceus MTCC 1810 through saccharification of delignified coir pith to glucose. BIORESOURCE TECHNOLOGY 2016; 213:245-248. [PMID: 26976061 DOI: 10.1016/j.biortech.2016.03.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/27/2016] [Accepted: 03/01/2016] [Indexed: 06/05/2023]
Abstract
The study describes purification and characterisation of processive-type endoglucanase and β-glucosidase from Aspergillus ochraceus MTCC 1810 through bioconversion of delignified coir pith to fermentable glucose. The purified processive endoglucanase (AS-HT-Celuz A) and β-glucosidase (AS-HT-Celuz B) were found to have molecular mass of ≈78-kDa and 43-kDa respectively with optimum endoglucanase (35.63U/ml), total cellulase (28.15FPU/ml) and β-glucosidase (15.19U/ml) activities at 40°C/pH 6. The unique feature of AS-HT-Celuz A is the multiple substrate specificity and processivity towards both amorphous and crystalline cellulose. Zymogram indicated both endo and exoglucanase activities residing in different binding sites of a single protein exhibiting sequential synergy with its own β-glucosidase. Accordingly, the identified enzymes could be implemented as synergistic cellulases for complete cellulose saccharification which still considered an unresolved issue in bio-refineries.
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Affiliation(s)
- P Asha
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, Kerala 682016, India
| | - Jose Divya
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, Kerala 682016, India
| | - I S Bright Singh
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, Kerala 682016, India.
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33
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Pretreatment of sweet sorghum bagasse by alkaline hydrogen peroxide for enhancing ethanol production. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-015-0217-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Effect of UV-C radiation and vapor released from a water hyacinth root absorbent containing bergamot oil to control mold on storage of brown rice. Journal of Food Science and Technology 2016; 53:1445-53. [PMID: 27570269 DOI: 10.1007/s13197-015-2146-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/18/2015] [Accepted: 12/14/2015] [Indexed: 10/22/2022]
Abstract
The aims of this study were to develop absorbent material from a water hyacinth root containing bergamot oil and to improve its antifungal activity by using ultraviolet C (UV-C) against the growth of A. flavus on the brown rice. Process optimization was studied by the immersion of a water hyacinth root into a water and bergamot oil (300, 500 and 700 μl ml(-1)). The root (absorbent material) was dried at 50, 70, and 90 °C for 10 min. Then, ultraviolet C (UV-C) was used for enhancing the antifungal activity of bergamot oil for 10, 15, and 20 min. The shelf-life of the brown rice with the absorbent after incubation at 25 ° C with 100 % RH for 12 weeks was also investigated. A microscope and a Fourier transform infrared spectroscopy (FTIR) were used to find out possible mode of action. Results indicated that the absorbent material produced from the water hyacinth root containing bergamot oil at 500 μl ml(-1) in the water solution, dried at 70 ° C and UV for 15 min showed the highest antifungal activity in a vapor phase against A. flavus on the brown rice. A microscopy investigation confirmed that the water hyacinth root could absorb bergamot oil from an outside water solution into root cells. Limonene in vapor phase was shown to be a stronger inhibitor than essential oil after UV-C radiation and should be the key factor in boosting bergamot oil antifungal activity. A vapor phase of bergamot oil could be released and inhibit natural mold on the surface of the brown rice for up to 12 weeks; without the absorbent, mold covered the brown rice in only 4 weeks.
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Ayadi F, Bayer IS, Marras S, Athanassiou A. Synthesis of water dispersed nanoparticles from different polysaccharides and their application in drug release. Carbohydr Polym 2016; 136:282-91. [DOI: 10.1016/j.carbpol.2015.09.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 08/24/2015] [Accepted: 09/10/2015] [Indexed: 11/26/2022]
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36
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Su L, Hei J, Wu X, Wang L, Wang Y. Highly-Dispersed Ni-QDs/Mesoporous Carbon Nanoplates: A Universal and Commercially Applicable Approach Based on Corn Straw Piths and High Capacitive Performances. ChemElectroChem 2015. [DOI: 10.1002/celc.201500272] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Liwei Su
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Jinpei Hei
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Xianbin Wu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Lianbang Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Yuanhao Wang
- Faculty of Science and Technology; Technological and Higher Education Institute of Hong Kong; Tsing Yi 999077 Hong Kong
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Kshirsagar SD, Waghmare PR, Chandrakant Loni P, Patil SA, Govindwar SP. Dilute acid pretreatment of rice straw, structural characterization and optimization of enzymatic hydrolysis conditions by response surface methodology. RSC Adv 2015. [DOI: 10.1039/c5ra04430h] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Efficient conversion of fermentable sugars from cheap lignocellulosic biomass is a current need in viable ethanol production technology.
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38
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Tamaddondar M, Pahlavanzadeh H, Saeid Hosseini S, Ruan G, Tan NR. Self-assembled polyelectrolyte surfactant nanocomposite membranes for pervaporation separation of MeOH/MTBE. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.08.048] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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39
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Mikhailidi AM, Kotelnikova NE, Gensh KV, Kushnir EY, Bazarnova NG. Composition and properties of wood and cellulose of tropical plants. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2014. [DOI: 10.1134/s1068162014070127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Application of graphene oxide as a catalyst to accelerate extraction of total flavonoids and the hydrolysis of baicalin from Radix scutellaria. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.06.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Waghmare PR, Kadam AA, Saratale GD, Govindwar SP. Enzymatic hydrolysis and characterization of waste lignocellulosic biomass produced after dye bioremediation under solid state fermentation. BIORESOURCE TECHNOLOGY 2014; 168:136-41. [PMID: 24656486 DOI: 10.1016/j.biortech.2014.02.099] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 02/15/2014] [Accepted: 02/17/2014] [Indexed: 05/09/2023]
Abstract
Sugarcane bagasse (SCB) adsorbes 60% Reactive Blue172 (RB172). Providensia staurti EbtSPG able to decolorize SCB adsorbed RB172 up to 99% under solid state fermentation (SSF). The enzymatic saccharification efficiency of waste biomass after bioremediation of RB172 process (ddSCB) has been evaluated. The cellulolyitc crude enzyme produced by Phanerochaete chrysosporium used for enzymatic hydrolysis of native SCB and ddSCB which produces 0.08 and 0.3 g/L of reducing sugars respectively after 48 h of incubation. The production of hexose and pentose sugars during hydrolysis was confirmed by HPTLC. The effect of enzymatic hydrolysis on SCB and ddSCB has been evaluated by FTIR, XRD and SEM analysis. Thus, during dye biodegradation under SSF causes biological pretreatment of SCB which significantly enhanced its enzymatic saccharification. Adsorption of dye on SCB, its bioremediation under SSF produces wastes biomass and which further utilized for enzymatic saccharification for biofuel production.
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Affiliation(s)
| | - Avinash A Kadam
- Department of Biotechnology, Shivaji University, Kolhapur 416004, India
| | - Ganesh D Saratale
- Department of Biochemistry, Shivaji University, Kolhapur 416004, India
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Lee BM, Lee JY, Kang PH, Hong SK, Jeun JP. Improved pretreatment process using an electron beam for optimization of glucose yield with high selectivity. Appl Biochem Biotechnol 2014; 174:1548-1557. [PMID: 25123364 DOI: 10.1007/s12010-014-1138-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 08/01/2014] [Indexed: 11/29/2022]
Abstract
In this study, electron beam irradiation (EBI) assisted by a dilute acid pretreatment process was investigated to improve the glucose yield and show high selectivity in the enzymatic hydrolysis of rice straw. In the first step, EBI of rice straw was performed at various doses ranging from 50 to 500 kGy. The electron beam-irradiated rice straw was then autoclaved with 3 % dilute acid at 120 °C for 1 h. The pretreated rice straw was finally subjected to enzymatic hydrolysis at 50 °C for 24, 48, and 72 h by 70 filter paper units (FPU)/mL cellulase and 40 cellobiose units (CbU)/mL glucosidase. Glucose was obtained with a very high selectivity of 92.7 % and a total sugar yield of 80 % from pretreated rice straw after 72 h of enzymatic hydrolysis.
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Affiliation(s)
- Byoung-Min Lee
- Research Division for Industry & Environment, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do, 580-185, Korea
| | - Jin-Young Lee
- Research Division for Industry & Environment, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do, 580-185, Korea
| | - Phil-Hyun Kang
- Research Division for Industry & Environment, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do, 580-185, Korea
| | - Sung-Kwon Hong
- Department of Polymer Science and Engineering, Chungnam National University, 99 Daehangno, Yuseong-gu, Daejeon, 305-764, Korea
| | - Joon-Pyo Jeun
- Research Division for Industry & Environment, Korea Atomic Energy Research Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do, 580-185, Korea.
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44
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Yan J, Hou Y, Ren S, Niu M, Wu W. Two-Step Treatment of Corn Cob in H2O–SO2 System. Ind Eng Chem Res 2014. [DOI: 10.1021/ie501567h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiahe Yan
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yucui Hou
- Department
of Chemistry, Taiyuan Normal University, Taiyuan 030031, China
| | - Shuhang Ren
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Muge Niu
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Weize Wu
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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45
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Fattahi Meyabadi T, Dadashian F, Mir Mohamad Sadeghi G, Ebrahimi Zanjani Asl H. Spherical cellulose nanoparticles preparation from waste cotton using a green method. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.04.039] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Chandel AK, Antunes FAF, Anjos V, Bell MJV, Rodrigues LN, Polikarpov I, de Azevedo ER, Bernardinelli OD, Rosa CA, Pagnocca FC, da Silva SS. Multi-scale structural and chemical analysis of sugarcane bagasse in the process of sequential acid-base pretreatment and ethanol production by Scheffersomyces shehatae and Saccharomyces cerevisiae. BIOTECHNOLOGY FOR BIOFUELS 2014; 7:63. [PMID: 24739736 PMCID: PMC4005856 DOI: 10.1186/1754-6834-7-63] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 02/04/2014] [Indexed: 05/04/2023]
Abstract
BACKGROUND Heavy usage of gasoline, burgeoning fuel prices, and environmental issues have paved the way for the exploration of cellulosic ethanol. Cellulosic ethanol production technologies are emerging and require continued technological advancements. One of the most challenging issues is the pretreatment of lignocellulosic biomass for the desired sugars yields after enzymatic hydrolysis. We hypothesized that consecutive dilute sulfuric acid-dilute sodium hydroxide pretreatment would overcome the native recalcitrance of sugarcane bagasse (SB) by enhancing cellulase accessibility of the embedded cellulosic microfibrils. RESULTS SB hemicellulosic hydrolysate after concentration by vacuum evaporation and detoxification showed 30.89 g/l xylose along with other products (0.32 g/l glucose, 2.31 g/l arabinose, and 1.26 g/l acetic acid). The recovered cellulignin was subsequently delignified by sodium hydroxide mediated pretreatment. The acid-base pretreated material released 48.50 g/l total reducing sugars (0.91 g sugars/g cellulose amount in SB) after enzymatic hydrolysis. Ultra-structural mapping of acid-base pretreated and enzyme hydrolyzed SB by microscopic analysis (scanning electron microcopy (SEM), transmitted light microscopy (TLM), and spectroscopic analysis (X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Fourier transform near-infrared (FT-NIR) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy) elucidated the molecular changes in hemicellulose, cellulose, and lignin components of bagasse. The detoxified hemicellulosic hydrolysate was fermented by Scheffersomyces shehatae (syn. Candida shehatae UFMG HM 52.2) and resulted in 9.11 g/l ethanol production (yield 0.38 g/g) after 48 hours of fermentation. Enzymatic hydrolysate when fermented by Saccharomyces cerevisiae 174 revealed 8.13 g/l ethanol (yield 0.22 g/g) after 72 hours of fermentation. CONCLUSIONS Multi-scale structural studies of SB after sequential acid-base pretreatment and enzymatic hydrolysis showed marked changes in hemicellulose and lignin removal at molecular level. The cellulosic material showed high saccharification efficiency after enzymatic hydrolysis. Hemicellulosic and cellulosic hydrolysates revealed moderate ethanol production by S. shehatae and S. cerevisiae under batch fermentation conditions.
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Affiliation(s)
- Anuj K Chandel
- Department of Biotechnology, School of Engineering of Lorena, Estrada Municipal do Campinho, University of São Paulo, Caixa Postal 116 12.602.810, Lorena, São Paulo, Brazil
| | - Felipe AF Antunes
- Department of Biotechnology, School of Engineering of Lorena, Estrada Municipal do Campinho, University of São Paulo, Caixa Postal 116 12.602.810, Lorena, São Paulo, Brazil
| | - Virgilio Anjos
- Materials Spectroscopy Laboratory, Department of Physics, Federal University of Juiz de Fora, Juiz de Fora 36036-330 Minas Gerais, Brazil
| | - Maria JV Bell
- Materials Spectroscopy Laboratory, Department of Physics, Federal University of Juiz de Fora, Juiz de Fora 36036-330 Minas Gerais, Brazil
| | - Leonarde N Rodrigues
- Materials Spectroscopy Laboratory, Department of Physics, Federal University of Juiz de Fora, Juiz de Fora 36036-330 Minas Gerais, Brazil
| | - Igor Polikarpov
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, São Paulo CEP 13560-970, Brazil
| | - Eduardo R de Azevedo
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, São Paulo CEP 13560-970, Brazil
| | - Oigres D Bernardinelli
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, São Paulo CEP 13560-970, Brazil
| | - Carlos A Rosa
- Departmento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Fernando C Pagnocca
- Department of Biochemistry and Microbiology, Institute of Biosciences, CIES/UNESP, Rio Claro, São Paulo, Brazil
| | - Silvio S da Silva
- Department of Biotechnology, School of Engineering of Lorena, Estrada Municipal do Campinho, University of São Paulo, Caixa Postal 116 12.602.810, Lorena, São Paulo, Brazil
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Shcherbakova TP, Kotel’nikova NE, Bykhovtsova YV. Comparative study of samples of powdered and microcrystalline celluloses of different natural origins: Supermolecular structure and the chemical composition of powdered samples. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2013. [DOI: 10.1134/s1068162013070133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Comparative pretreatment method for efficient enzymatic hydrolysis of Salvinia cucullata and sewage treatment in ponds containing this biomass. CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY 2013. [DOI: 10.1007/s10098-013-0694-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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49
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Chandel AK, Antunes FFA, Anjos V, Bell MJV, Rodrigues LN, Singh OV, Rosa CA, Pagnocca FC, da Silva SS. Ultra-structural mapping of sugarcane bagasse after oxalic acid fiber expansion (OAFEX) and ethanol production by Candida shehatae and Saccharomyces cerevisiae. BIOTECHNOLOGY FOR BIOFUELS 2013; 6:4. [PMID: 23324164 PMCID: PMC3614376 DOI: 10.1186/1754-6834-6-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 01/08/2013] [Indexed: 05/05/2023]
Abstract
BACKGROUND Diminishing supplies of fossil fuels and oil spills are rousing to explore the alternative sources of energy that can be produced from non-food/feed-based substrates. Due to its abundance, sugarcane bagasse (SB) could be a model substrate for the second-generation biofuel cellulosic ethanol. However, the efficient bioconversion of SB remains a challenge for the commercial production of cellulosic ethanol. We hypothesized that oxalic-acid-mediated thermochemical pretreatment (OAFEX) would overcome the native recalcitrance of SB by enhancing the cellulase amenability toward the embedded cellulosic microfibrils. RESULTS OAFEX treatment revealed the solubilization of hemicellulose releasing sugars (12.56 g/l xylose and 1.85 g/l glucose), leaving cellulignin in an accessible form for enzymatic hydrolysis. The highest hydrolytic efficiency (66.51%) of cellulignin was achieved by enzymatic hydrolysis (Celluclast 1.5 L and Novozym 188). The ultrastructure characterization of SB using scanning electron microscopy (SEM), atomic force microscopy (AFM), Raman spectroscopy, Fourier transform-near infrared spectroscopy (FT-NIR), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) revealed structural differences before and after OAFEX treatment with enzymatic hydrolysis. Furthermore, fermentation mediated by C. shehatae UFMG HM52.2 and S. cerevisiae 174 showed fuel ethanol production from detoxified acid (3.2 g/l, yield 0.353 g/g; 0.52 g/l, yield, 0.246 g/g) and enzymatic hydrolysates (4.83 g/l, yield, 0.28 g/g; 6.6 g/l, yield 0.46 g/g). CONCLUSIONS OAFEX treatment revealed marked hemicellulose degradation, improving the cellulases' ability to access the cellulignin and release fermentable sugars from the pretreated substrate. The ultrastructure of SB after OAFEX and enzymatic hydrolysis of cellulignin established thorough insights at the molecular level.
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Affiliation(s)
- Anuj K Chandel
- Department of Biotechnology, University of São Paulo, School of
Engineering of Lorena, Estrada Municipal do Campinho- Caixa,, Postal 116
12.602.810, Lorena/SP, Brazil
| | - Felipe F A Antunes
- Department of Biotechnology, University of São Paulo, School of
Engineering of Lorena, Estrada Municipal do Campinho- Caixa,, Postal 116
12.602.810, Lorena/SP, Brazil
| | - Virgilio Anjos
- Material Spectroscopy Laboratory, Department of Physics, Federal University
of Juiz de Fora,, 36036-330, Juiz de Fora, MG, Brazil
| | - Maria J V Bell
- Material Spectroscopy Laboratory, Department of Physics, Federal University
of Juiz de Fora,, 36036-330, Juiz de Fora, MG, Brazil
| | - Leonarde N Rodrigues
- Material Spectroscopy Laboratory, Department of Physics, Federal University
of Juiz de Fora,, 36036-330, Juiz de Fora, MG, Brazil
| | - Om V Singh
- Division of Biological and Health Sciences, University of Pittsburgh, 16701,
Bradford, PA, USA
| | - Carlos A Rosa
- Department of Microbiology, Federal University of Minas Gerais,, Belo
Horizonte, MG, Brazil
| | - Fernando C Pagnocca
- Department of Biochemistry and Microbiology, Institute of Biosciences
CEIS/UNESP – Rio, Claro/ SP, Brazil
| | - Silvio S da Silva
- Department of Biotechnology, University of São Paulo, School of
Engineering of Lorena, Estrada Municipal do Campinho- Caixa,, Postal 116
12.602.810, Lorena/SP, Brazil
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50
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Cao W, Sun C, Liu R, Yin R, Wu X. Comparison of the effects of five pretreatment methods on enhancing the enzymatic digestibility and ethanol production from sweet sorghum bagasse. BIORESOURCE TECHNOLOGY 2012; 111:215-21. [PMID: 22386628 DOI: 10.1016/j.biortech.2012.02.034] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 01/29/2012] [Accepted: 02/07/2012] [Indexed: 05/25/2023]
Abstract
To improve the enzymatic digestibility of sweet sorghum bagasse and bioethanol production, five pretreatment methods have been investigated and compared, including (1) dilute NaOH solution autoclaving pretreatment, (2) high concentration NaOH solution immersing pretreatment, (3) dilute NaOH solution autoclaving and H(2)O(2) immersing pretreatment, (4) alkaline peroxide pretreatment and (5) autoclaving pretreatment. Among them, the best result was obtained when sweet sorghum bagasse was dilute NaOH solution autoclaving and H(2)O(2) immersing pretreatment. The highest cellulose hydrolysis yield, total sugar yield and ethanol concentration were 74.29%, 90.94 g sugar/100g dry matter and 6.12 g/L, respectively, which were 5.88, 9.54 and 19.13 times higher than the control. Moreover, the FTIR and SEM analysis illustrated significant molecule and surface structure changes of the sweet sorghum bagasse after pretreatments.
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Affiliation(s)
- Weixing Cao
- Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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