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Aziz M, Palariya D, Mehtab S, Zaidi MGH, Vasseghian Y. Enhanced production of bioethanol through supercritical carbon dioxide-mediated pretreatment and saccharification of dewaxed bagasse. Sci Rep 2024; 14:21450. [PMID: 39271743 PMCID: PMC11399341 DOI: 10.1038/s41598-024-70727-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 08/20/2024] [Indexed: 09/15/2024] Open
Abstract
The pretreatment and saccharification of dewaxed bagasse (DWB) has been investigated under various reaction conditions ranging 2000 to 3200 psi, at 70 ± 1 °C in supercritical carbon dioxide (SCC). This has been in attempt to transform the DWB into fermentable sugar and bioethanol in high yields. The effect of SCC mediated pretreatment and enzymatic hydrolysis on structural and morphological alterations in DWB has been ascertained through diverse analytical methods. The sugar has been released through cellulase (40 FPU/mL) mediated enzymatic hydrolysis of pretreated DWB in sodium acetate buffer (pH 4.7) within 1 h at SCC 2800 psi, 70 ± 1 °C. The released sugar was subsequently fermented in the presence of yeast (Saccharomyces crevices, 135 CFU) at 28 ± 1 °C over 72 h to afford the bioethanol. The SCC mediated process conducted in acetic acid:water media (1:1) at 2800 psi, 70 ± 1 °C over 6 h has afforded the pretreated DWB with maximum yield towards the production of fermentable sugar and bioethanol. The production of fermentable sugar and bioethanol has been electrochemically estimated through cyclic voltammetry (CV) and square wave voltammetry (SWV) over glassy carbon electrode in KOH (0.1 M). The electrochemical methods were found selective and in close agreement for estimation of the yields (%) of fermentable sugars and bioethanol. The yield (%) of fermentable sugar estimated from CV and SWV were 80.10 ± 5.34 and 79.00 ± 5.09 respectively. Whereas the yield (%) of bioethanol estimated from CV and SWV were 81.30 ± 2.78% and 78.6 ± 1.25% respectively. Present investigation delivers a SCC mediated green and sustainable method of pretreatment of DWB to afford the enhanced saccharification, to produce bioethanol in high yields.
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Affiliation(s)
- Mohammad Aziz
- Department of Chemistry, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology Pantnagar, U.S Nagar, Uttarakhand, 263145, India
| | - Diksha Palariya
- Department of Chemistry, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology Pantnagar, U.S Nagar, Uttarakhand, 263145, India
| | - Sameena Mehtab
- Department of Chemistry, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology Pantnagar, U.S Nagar, Uttarakhand, 263145, India.
| | - M G H Zaidi
- Department of Chemistry, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology Pantnagar, U.S Nagar, Uttarakhand, 263145, India.
| | - Yasser Vasseghian
- Department of Chemical Engineering and Material Science, Yuan Ze University, Taoyuan, Taiwan.
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Li L, Gao B, Xu S, Xu Q. Strong Ferromagnetic Manipulation of SrTiO 3 from CO 2 -Straining Effect on Electronic Structure Modulation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300765. [PMID: 36919262 DOI: 10.1002/smll.202300765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/21/2023] [Indexed: 06/15/2023]
Abstract
2D magnetic materials are ideal to fabricate magneto-optical, magneto-electric, and data storage devices, which are proposed to be critical to the next generation of information technologies. Benefited from their labile structures, 2D perovskites are amenable for magnetic manipulation through structural optimization. In this work, 2D room-temperature ferromagnetic SrTiO3 is achieved through straining effect induced by supercritical carbon dioxide (SC CO2 ). According to experimental results, the cubic phase of SrTiO3 is converted to tetragonal with exposure of (110), (200), (111), and (211) planes over the SC CO2 treatment, leading to significant ferromagnetic enhancement. Theoretical calculations illustrate that over the conversion from cubic to tetragonal, the electronic structure of SrTiO3 is significantly modulated. Specifically, the spin density of planes of (200), (111), and (211) is enhanced, presumably due to the stabilization of the highest occupied molecular orbital over straining by SC CO2 , leading to magnetic optimizations. This work suggests that magnetic optimization can be achieved from SC CO2 -induced electronic structure modulation.
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Affiliation(s)
- Lianyu Li
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Bo Gao
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Song Xu
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, P. R. China
| | - Qun Xu
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, P. R. China
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Supercritical Fluid-assisted Fabrication of Pt-modified Cerium Oxide Nanozyme Based on Polymer Nanoreactors for Peroxidase-like and Glucose Detection Characteristics. J Supercrit Fluids 2023. [DOI: 10.1016/j.supflu.2023.105915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Ha ES, Kang HT, Park H, Kim S, Kim MS. Advanced technology using supercritical fluid for particle production in pharmaceutical continuous manufacturing. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2022. [DOI: 10.1007/s40005-022-00601-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hosseini H, Tsau JS, Ghahfarokhi RB. Sub-millimetric visualization and stability measurement for supercritical CO2 foams: Effect of ionic complexation on tubular and diverging flows. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Geng Y, Zhu R, Maimaituerxun M. Bibliometric review of carbon neutrality with CiteSpace: evolution, trends, and framework. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:76668-76686. [PMID: 36169840 DOI: 10.1007/s11356-022-23283-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The concept of carbon neutrality has been promoted and implemented in increasing countries since the twenty-first century. In-depth research on carbon neutrality has helped improve the environmental conditions and played a particular role in sustaining economic and social development. However, there is a less comprehensive review of the status in this field; therefore, this article uses the information visualization software CiteSpace to thoroughly analyze carbon neutrality research from multiple perspectives. This study aims to reveal the current research evolutions and hotspots in this field, predict future research trends, and construct the framework for better understanding. The results find that the number of papers published on carbon neutrality keeps increasing annually, and carbon neutrality has been the widely participated domain. In addition, publications by organizations and in top journals have aroused wide attention, and the hot spots on carbon neutrality have shifted to policy, recovery, and efficiency. Based on the results, a knowledge framework of this domain is constructed to give readers a clearer understanding of the evolvement and trends, which will also provide targeted references and help for future researchers.
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Affiliation(s)
- Yuqing Geng
- School of Business, Shanghai Dianji University, 300 Shuihua Road, Shanghai, China
| | - Renjun Zhu
- School of Business, Shanghai Dianji University, 300 Shuihua Road, Shanghai, China.
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Chen BQ, Liu H, Zhao Y, Lu XC, Zhang CY, Kankala RK, Wang SB, Chen AZ. Preparation of astragaloside IV (AS-IV) nanoparticles via SAS process for anticancer efficacy: optimization based on Box-Behnken Design. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sajadian SA, Ardestani NS, Esfandiari N, Askarizadeh M, Jouyban A. Solubility of favipiravir (as an anti-COVID-19) in supercritical carbon dioxide: An experimental analysis and thermodynamic modeling. J Supercrit Fluids 2022; 183:105539. [PMID: 35136283 PMCID: PMC8815272 DOI: 10.1016/j.supflu.2022.105539] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 12/15/2022]
Abstract
Favipiravir is one of the most commonly prescribed drugs in the treatment of COVID-19 in the early stages of the disease. In this work, the solubility of favipiravir was measured in supercritical CO2 at temperatures ranging from 308 to 338 K and pressures ranging from 12 to 30 MPa. The mole fraction solubility of favipiravir was in the range of 3.0 × 10-6 to 9.05 × 10-4. The solubility data were correlated with three types of methods including; (a) density-based models (Chrastil, Garlapati and Madras, Sparks et al., Sodeifian et al., K-J and Keshmiri et al.), (b) Equations of states SRK with quadratic mixing rules) and (c) expanded liquid theory (modified Wilson model). According to the results, modified Wilson and K-J models are generally capable of providing good correlation of solubility. Finally, the approximate values of total (Δ H total ), vaporization (Δ H vap ), and solvation (Δ H sol ) enthalpies were computed.
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Affiliation(s)
- Seyed Ali Sajadian
- South Zagros Oil and Gas Production, National Iranian Oil Company, 7135717991 Shiraz, Iran
- Department of Chemical Engineering, Faculty of Engineering, University of Kashan, 87317-53153 Kashan, Iran
| | - Nedasadat Saadati Ardestani
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, 14155-4777 Karaj, Iran
| | - Nadia Esfandiari
- Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Mahshid Askarizadeh
- Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Pharmacy, Near East University, PO BOX: 99138, Mersin 10, Nicosia, North Cyprus,Turkey
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