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Gu W, Wu S, Liu X, Wang L, Wang X, Qiu Q, Wang G. Algal-bacterial consortium promotes carbon sink formation in saline environment. J Adv Res 2024; 60:111-125. [PMID: 37597746 PMCID: PMC11156706 DOI: 10.1016/j.jare.2023.08.004] [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: 05/28/2023] [Revised: 07/26/2023] [Accepted: 08/05/2023] [Indexed: 08/21/2023] Open
Abstract
INTRODUCTION The level of atmospheric CO2 has continuously been increasing and the resulting greenhouse effects are receiving attention globally. Carbon removal from the atmosphere occurs naturally in various ecosystems. Among them, saline environments contribute significantly to the global carbon cycle. Carbonate deposits in the sediments of salt lakes are omnipresent, and the biological effects, especially driven by halophilic microalgae and bacteria, on carbonate formation remain to be elucidated. OBJECTIVES The present study aims to characterize the carbonates formed in saline environments and demonstrate the mechanisms underlying biological-driven CO2 removal via microalgal-bacterial consortium. METHODS The carbonates naturally formed in saline environments were collected and analyzed. Two saline representative organisms, the photosynthetic microalga Dunaliella salina and its mutualistic halophilic bacteria Nesterenkonia sp. were isolated from the inhabiting saline environment and co-cultivated to study their biological effects on carbonates precipitation and isotopic composition. During this process, electrochemical parameters and Ca2+ flux, and expression of genes related to CaCO3 formation were analyzed. Genome sequencing and metagenomic analysis were conducted to provide molecular evidence. RESULTS The results showed that natural saline sediments are enriched with CaCO3 and enrichment of genes related to photosynthesis and ureolysis. The co-cultivation stimulated 54.54% increase in CaCO3 precipitation and significantly promoted the absorption of external CO2 by 49.63%. A pH gradient was formed between the bacteria and algae culture, creating 150.22 mV of electronic potential, which might promote Ca2+ movement toward D. salina cells. Based on the results of lab-scale induction and 13C analysis, a theoretical calculation indicates a non-negligible amount of 0.16 and 2.3 Tg C/year carbon sequestration in China and global saline lakes, respectively. CONCLUSION The combined effects of these two typical representative species have contributed to the carbon sequestration in saline environments, by promoting Ca2+ influx and increase of pH via microalgal and bacterial metabolic processes.
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Affiliation(s)
- Wenhui Gu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Songcui Wu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Xuehua Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Lijun Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Xulei Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Qi Qiu
- Tianjin Changlu Hangu Saltern Co., LTD, 300480, China
| | - Guangce Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China.
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Zhao L, Zhang Z, Wang P, Zhang N, Shen H, Wu H, Wei Z, Yang F, Wang Y, Yu Z, Li H, Hu Z, Zhai H, Wang Z, Su F, Xie K, Li Y. NHH promotes Sepsis-associated Encephalopathy with the expression of AQP4 in astrocytes through the gut-brain Axis. J Neuroinflammation 2024; 21:138. [PMID: 38802927 PMCID: PMC11131257 DOI: 10.1186/s12974-024-03135-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/20/2024] [Indexed: 05/29/2024] Open
Abstract
Sepsis-associated encephalopathy (SAE) is a significant cause of mortality in patients with sepsis. Despite extensive research, its exact cause remains unclear. Our previous research indicated a relationship between non-hepatic hyperammonemia (NHH) and SAE. This study aimed to investigate the relationship between NHH and SAE and the potential mechanisms causing cognitive impairment. In the in vivo experimental results, there were no significant abnormalities in the livers of mice with moderate cecal ligation and perforation (CLP); however, ammonia levels were elevated in the hippocampal tissue and serum. The ELISA study suggest that fecal microbiota transplantation in CLP mice can reduce ammonia levels. Reduction in ammonia levels improved cognitive dysfunction and neurological impairment in CLP mice through behavioral, neuroimaging, and molecular biology studies. Further studies have shown that ammonia enters the brain to regulate the expression of aquaporins-4 (AQP4) in astrocytes, which may be the mechanism underlying brain dysfunction in CLP mice. The results of the in vitro experiments showed that ammonia up-regulated AQP4 expression in astrocytes, resulting in astrocyte damage. The results of this study suggest that ammonia up-regulates astrocyte AQP4 expression through the gut-brain axis, which may be a potential mechanism for the occurrence of SAE.
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Affiliation(s)
- Lina Zhao
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Zhen Zhang
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Pei Wang
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Nannan Zhang
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Hao Shen
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Hening Wu
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Zhiyong Wei
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Fei Yang
- Department of Critical Care Medicine, Chifeng Municipal Hospital, Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, 024000, China
| | - Yunying Wang
- Department of Critical Care Medicine, Chifeng Municipal Hospital, Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, 024000, China
| | - Zhijie Yu
- Department of Critical Care Medicine, Chifeng Municipal Hospital, Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, 024000, China
| | - Haibo Li
- Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, 024000, China
| | - Zhanfei Hu
- Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, 024000, China
| | - Hongyan Zhai
- Department of Ultrasound, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Zhiwei Wang
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Fuhong Su
- Experimental Laboratory of the Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, 1070, Belgium
| | - Keliang Xie
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China.
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Yun Li
- Department of Anesthesiology, Tianjin Institute of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, 300052, China.
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Sharma B, Sharma S, Medicherla KM, Reddy SM. Genome Sequence Analysis of Calcifying Bacteria Bacillus paranthracis CT5 and Its Biomineralization Efficacy to Improve the Strength and Durability Properties of Civil Structures. Curr Microbiol 2024; 81:109. [PMID: 38466427 DOI: 10.1007/s00284-024-03625-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 01/24/2024] [Indexed: 03/13/2024]
Abstract
Bacteria producing urea amidohydrolases (UA) and carbonic anhydrases (CA) are of great importance in civil engineering as these enzymes are responsible for microbially induced calcium carbonate precipitation (MICCP). In this investigation, genomic insights of Bacillus paranthracis CT5 and the expression of genes underlying in MICCP were studied. B. paranthracis produced a maximum level of UA (669.3 U/ml) and CA (125 U/ml) on 5th day of incubation and precipitated 197 mg/100 ml CaCO3 after 7 days of incubation. After 28 days of curing, compressive strength of bacterial admixed and bacterial cured (B-B) specimens was 13.7% higher compared to water-mixed and water-cured (W-W) specimens. A significant decrease in water absorption was observed in bacterial-cured specimens compared to water-cured specimens after 28 days of curing. For genome analysis, reads were assembled de novo producing 5,402,771 bp assembly with N50 of 273,050 bp. RAST annotation detected six amidohydrolase and three carbonic anhydrase genes. Among 5700 coding sequences found in genome, COG gene annotation grouped 4360 genes into COG categories with highest number of genes to transcription (435 genes), amino acid transport and metabolism (362 genes) along with cell wall/membrane/envelope biogenesis and ion transport and metabolism. KEGG functional classification predicted 223 pathways consisting of 1,960 genes and the highest number of genes belongs to two-component system (101 genes) and ABC transporter pathways (98 genes) enabling bacteria to sense and respond to environmental signals and actively transport various minerals and organic molecules, which facilitate the active transport of molecules required for MICCP.
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Affiliation(s)
- Bhavdeep Sharma
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, Punjab, 147004, India
| | - Shruti Sharma
- Department of Civil Engineering, Thapar Institute of Engineering & Technology, Patiala, Punjab, 147004, India
| | | | - Sudhakara M Reddy
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, Punjab, 147004, India.
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Wilcox SM, Mulligan CN, Neculita CM. Microbially Induced Calcium Carbonate Precipitation as a Bioremediation Technique for Mining Waste. TOXICS 2024; 12:107. [PMID: 38393202 PMCID: PMC10891697 DOI: 10.3390/toxics12020107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024]
Abstract
Mining waste represents a global issue due to its potential of generating acidic or alkaline leachate with high concentrations of metals and metalloids (metal(loid)s). Microbial-induced calcium carbonate precipitation (MICP) is an engineering tool used for remediation. MICP, induced via biological activity, aims to precipitate calcium carbonate (CaCO3) or co-precipitate other metal carbonates (MCO3). MICP is a bio-geochemical remediation method that aims to immobilize or remove metal(loid)s via enzyme, redox, or photosynthetic metabolic pathways. Contaminants are removed directly through immobilization as mineral precipitates (CaCO3 or MCO3), or indirectly (via sorption, complexes, or inclusion into the crystal structure). Further, CaCO3 precipitates deposited on the surface or within the pore spaces of a solid matrix create a clogging effect to reduce contaminant leachate. Experimental research on MICP has shown its promise as a bioremediation technique for mining waste. Additional research is required to evaluate the long-term feasibility and potential by-products of MICP-treated/stabilized waste.
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Affiliation(s)
- Samantha M. Wilcox
- Department of Building, Civil and Environmental Engineering, Concordia University, Montréal, QC H3G IM8, Canada
| | - Catherine N. Mulligan
- Department of Building, Civil and Environmental Engineering, Concordia University, Montréal, QC H3G IM8, Canada
| | - Carmen Mihaela Neculita
- Research Institute on Mines and the Environment (RIME), University of Quebec in Abitibi-Témiscamingue, Rouyn-Noranda, QC J9X 5E4, Canada;
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Li J, Achal V. Self-assembled silk fibroin cross-linked with genipin supplements microbial carbonate precipitation in building material. ENVIRONMENTAL MICROBIOLOGY REPORTS 2023; 15:797-808. [PMID: 37814459 PMCID: PMC10667665 DOI: 10.1111/1758-2229.13202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 09/06/2023] [Indexed: 10/11/2023]
Abstract
The process of microbially induced carbonate precipitation (MICP) is known to effectively improve engineering properties of building materials and so does silk fibroin (SF). Thus, in this study, an attempt was taken to see the improvement in sand, that is, basic building material coupled with MICP and SF. Urease producing Bacillus megaterium was utilized for MICP in Nutri-Calci medium. To improve the strength of SF itself in bacterial solution, it was cross-linked with genipin at the optimized concentration of 3.12 mg/mL. The Fourier transform infrared (FTIR) spectra confirmed the crosslinking of SF with genipin in bacterial solution. In order to understand how such cross-linking can improve engineering properties, sand moulds of 50 mm3 dimension were prepared that resulted in 35% and 55% more compressive strength than the one prepared with bacterial solution with SF and bacterial solution only, respectively with higher calcite content in former one. The FTIR, SEM, x-ray powder diffraction spectrometry and x-ray photoelectron spectroscopy analyses confirmed higher biomineral precipitation in bacterial solution coupled with genipin cross-linked SF. As the process of MICP is proven to replace cement partially from concrete without negatively influence mechanical properties, SF cross-linked with genipin can provide additional significance in developing low-carbon cement-based composites.
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Affiliation(s)
- Jiayu Li
- Department of Environmental Science and EngineeringGuangdong Technion—Israel Institute of TechnologyShantouGuangdongChina
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy ConversionGuangdong Technion—Israel Institute of TechnologyShantouGuangdongChina
| | - Varenyam Achal
- Department of Environmental Science and EngineeringGuangdong Technion—Israel Institute of TechnologyShantouGuangdongChina
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy ConversionGuangdong Technion—Israel Institute of TechnologyShantouGuangdongChina
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Elizabeth George S, Wan Y. Microbial functionalities and immobilization of environmental lead: Biogeochemical and molecular mechanisms and implications for bioremediation. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131738. [PMID: 37285788 DOI: 10.1016/j.jhazmat.2023.131738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
The increasing environmental and human health concerns about lead in the environment have stimulated scientists to search for microbial processes as innovative bioremediation strategies for a suite of different contaminated media. In this paper, we provide a compressive synthesis of existing research on microbial mediated biogeochemical processes that transform lead into recalcitrant precipitates of phosphate, sulfide, and carbonate, in a genetic, metabolic, and systematics context as they relate to application in both laboratory and field immobilization of environmental lead. Specifically, we focus on microbial functionalities of phosphate solubilization, sulfate reduction, and carbonate synthesis related to their respective mechanisms that immobilize lead through biomineralization and biosorption. The contributions of specific microbes, both single isolates or consortia, to actual or potential applications in environmental remediation are discussed. While many of the approaches are successful under carefully controlled laboratory conditions, field application requires optimization for a host of variables, including microbial competitiveness, soil physical and chemical parameters, metal concentrations, and co-contaminants. This review challenges the reader to consider bioremediation approaches that maximize microbial competitiveness, metabolism, and the associated molecular mechanisms for future engineering applications. Ultimately, we outline important research directions to bridge future scientific research activities with practical applications for bioremediation of lead and other toxic metals in environmental systems.
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Affiliation(s)
- S Elizabeth George
- US EPA Office of Research and Development, Center for Environmental Measurement and Modeling, Gulf Ecosystem Measurement and Modeling Division, One Sabine Island Drive, Gulf Breeze, FL 32561, USA
| | - Yongshan Wan
- US EPA Office of Research and Development, Center for Environmental Measurement and Modeling, Gulf Ecosystem Measurement and Modeling Division, One Sabine Island Drive, Gulf Breeze, FL 32561, USA.
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Bandyopadhyay A, Saha A, Ghosh D, Dam B, Samanta AK, Dutta S. Microbial repairing of concrete & its role in CO2 sequestration: a critical review. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2023. [DOI: 10.1186/s43088-023-00344-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Abstract
Background
Being the most widely used construction material, concrete health is considered a very important aspect from the structural point of view. Microcracks in concrete cause water and chlorine ions to enter the structure, causing the concrete to degrade and the reinforcement to corrode, posing an unacceptable level of structural risk. Hence repair of these cracks in an eco-friendly and cost-effective way is in the interest of various researchers. Microbially induced calcite precipitation (MICP) is an effective way considered by various researchers to heal those concrete cracks along with an important environmental contribution of CO2 (carbon dioxide) sequestration in the process.
Main content
As the current concentration of CO2 in the earth’s atmosphere is about 412 ppm, it possesses a deadly threat to the environmental issue of global warming. The use of bacteria for MICP can not only be a viable solution to repairing concrete cracks but also can play an important role of CO2 arrestation in carbonate form. This will help in carbon level management to lessen the adverse effects of this greenhouse gas on the atmospheric environment, particularly on the climate. To overcome the insufficiency of studies concentrating on this aspect, this review article focuses on the metabolic pathways and mechanisms of MICP and highlights the value of MICP for CO2 arrestation/sequestration from the atmosphere during the process of self-healing of concrete cracks, which is also the novelty of this work. An overview of recent studies on the implementation of MICP in concrete crack repair is used to discuss and analyse the factors influencing the effectiveness of MICP in the process, including various approaches used for CO2 sequestration. Furthermore, this investigation concentrates on finding the scope of work in the same field for the most effective ways of CO2 sequestration in the process of self-healing cracks of concrete.
Conclusion
In a prospective study, MICP can be an effective technology for CO2 sequestration in concrete crack repair, as it can reduce adverse environmental impacts and provide greener environment. This critical study concludes that MICP can bear a significant role in arrestation/sequestration of CO2, under proper atmospheric conditions with a cautious selection of microorganisms and its nutrient for the MICP procedure.
Graphical Abstract
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Zeng Y, Chen Z, Lyu Q, Wang X, Du Y, Huan C, Liu Y, Yan Z. Mechanism of microbiologically induced calcite precipitation for cadmium mineralization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 852:158465. [PMID: 36063935 DOI: 10.1016/j.scitotenv.2022.158465] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/28/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Microbiologically induced calcite precipitation (MICP) technology shows potential for remediating heavy metal pollution; however, the underlying mechanism of heavy metal mineralization is not well-understood, limiting the application of this technology. In this study, we targeted Cd contamination (using 15:1, 25:1, and 50:1 Ca2+/Cd2+ molar ratios) and showed that the ureolytic bacteria Sporosarcina ureilytica ML-2 removed >99.7 % Cd2+ with a maximum fixation capacity of 75.61 mg-Cd/g-CaCO3 and maximum precipitation production capacity of 135.99 mg-CaCO3/mg-cells. Quantitative PCR analysis showed that Cd2+ inhibited the expression of urease genes (ureC, ureE, ureF, and ureG) by 70 % in the ML-2 strain. Additionally, the pseudo-first-order kinetics model (R2 = 0.9886), intraparticle diffusion model (R2 = 0.9972), and Temkin isotherm model (R2 = 0.9828) described the immobilization process of Cd2+ by bio calcite in MICP-Cd system. The three Cd2+ mineralization products generated by MICP were attributed to surface precipitation (Cd2+ → Cd(OH)2), direct binding with the CO32-/substitution calcium site of calcite (Cd2+ → CdCO3, otavite), and calcite lattice vacancy anchors (Cd2+ → (CaxCd1-x)CO3). Our findings improve the understanding of the mechanisms by which MICP can achieve in situ stabilization of heavy metals.
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Affiliation(s)
- Yong Zeng
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China.
| | - Zezhi Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China.
| | - Qingyang Lyu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China
| | - Xiuxiu Wang
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China
| | - Yaling Du
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China
| | - Chenchen Huan
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China
| | - Yang Liu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China
| | - Zhiying Yan
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, PR China.
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Calcareous deposit formation under cathodic polarization and marine biocalcifying bacterial activity. Bioelectrochemistry 2022; 148:108271. [DOI: 10.1016/j.bioelechem.2022.108271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/22/2022]
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10
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Ghumman ASM, Shamsuddin R, Nasef MM, Yahya WZN, Abbasi A, Almohamadi H. Sulfur enriched slow-release coated urea produced from inverse vulcanized copolymer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 846:157417. [PMID: 35850358 DOI: 10.1016/j.scitotenv.2022.157417] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Slow-release fertilizers are developed to enhance the nutrient use efficiency (NUE), by coating urea with less water soluble or hydrophobic material. Diverse range of materials have been utilized to coat urea, however, their inherit non-biodegradability, hydrophilicity, crystallinity, and high synthesis cost limits their scalability. Herein, we reported the preparation of a novel slow-release sulfur enriched urea fertilizers using sustainable hydrophobic, biodegradable, crosslinked copolymer made from sulfur and rubber seed oil (Poly(S-RSO)) through the use of dip coating method. Scanning electron microscopy (SEM) was employed to study the fertilizers morphology and estimate the coating film thickness. A nitrogen release test was carried out in distilled water, which revealed that the coated fertilizers with a coating thickness of 165 μm, 254 μm and 264 μm released only 65 % of its total nutrient content after 2, 19 and 43 days of incubation, respectively: hence, showing an excellent slow-release property. In soil, fertilizer with 264 μm coating thickness released only 17 % nitrogen after 20 days of incubation, in line with the European standard (EN 13266, 2001). The release kinetic data best fits the Ritger-Peppas model with a R2 value of 0.99 and the n value of 0.65 indicated the release was mainly due to diffusion. Submerged cultivation (SmC) demonstrated the potential of poly(S-RSO) to enhance sulfur oxidation; it was observed that the copolymer oxidation was 50 % greater than that of elemental sulfur. A comparison between the newly developed fertilizers and existing coated fertilizers was also presented. On the whole, the results demonstrated outstanding slow-release characteristics and improved sulfur oxidation.
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Affiliation(s)
- Ali Shaan Manzoor Ghumman
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia; HICoE, Center for Biofuel and Biochemical Research (CBBR), Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Rashid Shamsuddin
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia; HICoE, Center for Biofuel and Biochemical Research (CBBR), Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia.
| | - Mohamed Mahmoud Nasef
- Department of Chemical and Environmental Engineering, Malaysia Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia
| | - Wan Zaireen Nisa Yahya
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Amin Abbasi
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Hamad Almohamadi
- Department of Chemical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah, Saudi Arabia
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Abdelsamad R, Al Disi Z, Abu-Dieyeh M, Al-Ghouti MA, Zouari N. Evidencing the role of carbonic anhydrase in the formation of carbonate minerals by bacterial strains isolated from extreme environments in Qatar. Heliyon 2022; 8:e11151. [PMID: 36311368 PMCID: PMC9614864 DOI: 10.1016/j.heliyon.2022.e11151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/09/2021] [Accepted: 01/01/2022] [Indexed: 11/05/2022] Open
Abstract
Calcium carbonate, one of the most abundant minerals in the geological records is considered as primary source of the carbon reservoir. The role of microorganisms in the biotic precipitation of calcium carbonate has been extensively investigated, especially at extreme life conditions. In Qatar, Sabkhas which are microbial ecosystems housing biomineralizing bacteria, have been carefully studied as unique sites of microbial dolomite formation. Dolomite (CaMg(CO3)2 is an important carbonate mineral forming oil reservoir rocks; however, dolomite is rarely formed in modern environments. The enzyme carbonic anhydrase is present in many living organisms, performs interconversion between CO2 and the bicarbonate ion. Thus, carbonic anhydrase is expected to accelerate both carbonate rock dissolution and CO2 uptake at the same time, serving as carbonite source to carbonites-forming bacteria. This study gathered cross-linked data on the potential role of the carbonic anhydrase excreted by mineral-forming bacteria, isolated from two different extreme environments in Qatar. Dohat Faishakh Sabkha, is a hypersaline coastal Sabkha, from where various strains of the bacterium Virgibacillus were isolated. Virgibacillus can -not only-mediate carbonate mineral formation, but also contributes to magnesium incorporation into the carbonate minerals, leading to the formation of high magnesium calcite. The latter is considered as precursor for dolomite formation. In addition, bacterial strains isolated from marine sediments, surrounding coral reef in Qatar sea, would provide additional knowledge on the role of carbonic anhydrase in mineral formation. Here, the quantification of the two mostly described activities of carbonic anhydrase; esterase and hydration reactions were performed. Mineral-forming strains were shown to exhibit high activities as opposed to the non-forming minerals, which confirms the relation between the presence of active carbonic anhydrase combined with elevated metabolic activity and the biomineralizing potential of the bacterial strains. The highest specific intracellular carbonic anhydrase activity; as both esterase and hydration (i.e., 66 ± 3 and 583000 ± 39000 WAU/108 cells respectively), was evidenced in mineral-forming strains as opposed to non-mineral forming strains (i.e., 6 ±. 0.5 and 1223 ± 61 WAU/108cells) respectively. These findings would contribute to the understanding of the mechanism of microbially mediated carbonate precipitation. This role may be both in capturing CO2 as source of carbonate, and partial solubilization of the formed minerals allowing incorporation of Mg instead of calcium, before catalyzing again the formation of more deposition of carbonates.
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12
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Sheng M, Peng D, Luo S, Ni T, Luo H, Zhang R, Wen Y, Xu H. Micro-dynamic process of cadmium removal by microbial induced carbonate precipitation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119585. [PMID: 35728693 DOI: 10.1016/j.envpol.2022.119585] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Microbially induced carbonate precipitation (MICP) is a technique used extensively to address heavy metal pollution but its micro-dynamic process remains rarely explored. In this study, A novel Cd-tolerant ureolytic bacterium DL-1 (Pseudochrobactrum sp.) was used to study the micro-dynamic process. With conditions optimized by response surface methodology, the removal efficiency of Cd2+ could achieve 99.89%. Three components were separated and characterized in the reaction mixture of Cd2+ removal by MICP. The quantitative-dynamic distribution of Cd2+ in different components was revealed. Five synergistic effects for Cd2+ removal were found, including co-precipitation, adsorption by precipitation, crystal precipitation on the cell surface, intracellular accumulation and extracellular chemisorption. Importantly, during Cd2+ removal by MICP, the phenomenon that crystalline nanoparticles adhere to the cell surface, but without any micrometer-sized precipitation encapsulated bacterial cells was observed. This indicated that the previously studied model of bacterial cells as nucleation sites for metal cation precipitation and crystal growth is oversimplified. Our findings provided valuable insights into the mechanism of heavy metals removal by MICP, and a more straightforward method for studying biomineralization-related dynamic process.
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Affiliation(s)
- Mingping Sheng
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Dinghua Peng
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Shihua Luo
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Ting Ni
- School of Life Science, Shanxi University, Taiyuan, 03006, PR China
| | - Huanyan Luo
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Renfeng Zhang
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Yu Wen
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Heng Xu
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Science, Sichuan University, Chengdu, 610065, Sichuan, PR China; Key Laboratory of Environment Protection, Soil Ecological Protection and Pollution Control, Sichuan University & Department of Ecology and Environment of Sichuan, Chengdu, 610065, Sichuan, PR China.
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13
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Han Z, Li D, Zhao Y, Wang J, Guo N, Yan H, Han C, Li Q, Tucker ME. Mineralogy of Bioprecipitate Evolution over Induction Times Mediated by Halophilic Bacteria under Various Mg/Ca Molar Ratios. ACS OMEGA 2022; 7:29755-29772. [PMID: 36061657 PMCID: PMC9435042 DOI: 10.1021/acsomega.2c02443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
In microbial mineralization experiments, the induction time of mineral precipitation is ambiguous, and this may lead to difficulties in reproducing and confirming the test results. To explore the link between induction time and microbially mediated carbonate precipitation, we report here the mineralogy and morphology of carbonate precipitates induced by the halophilic Halomonas utahensis WMS2 bacterium in media with various Mg/Ca molar ratios over a range of induction times. The results show that the biominerals are formed in an alkaline environment affected by ammonia secreted by H. utahensis WMS2 bacteria. The content of dissolved inorganic carbon increased as a result of carbonic anhydrase catalyzing the hydration of carbon dioxide to release bicarbonate and carbonate ions. The X-ray diffraction (XRD) results show that the phase of mineral precipitated gradually changes from an unstable Mg-rich calcite to metastable monohydrocalcite and then to stable hydromagnesite with an increase in the Mg2+ ion concentration and induction time. The scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Fourier transform infrared spectroscopy (FTIR) results show that minerals mostly change from single particles/crystallites to aggregations under the action of the microorganisms at different Mg2+ ion concentrations and induction times. Our experiments demonstrate that the carbonate minerals produced in the presence of microbes change significantly with the induction time, in addition to the influence of the hydrochemical factors; this indicates that the induction time is significant in determining the mineralogy of biominerals.
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Affiliation(s)
- Zuozhen Han
- College
of Earth Science and Engineering, Shandong Provincial Key Laboratory
of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao 266590, China
- Laboratory
for Marine Mineral Resources, Qingdao National
Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Dan Li
- College
of Earth Science and Engineering, Shandong Provincial Key Laboratory
of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yanyang Zhao
- College
of Earth Science and Engineering, Shandong Provincial Key Laboratory
of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jiajia Wang
- College
of Earth Science and Engineering, Shandong Provincial Key Laboratory
of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao 266590, China
| | - Na Guo
- College
of Earth Science and Engineering, Shandong Provincial Key Laboratory
of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao 266590, China
| | - Huaxiao Yan
- College
of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Chao Han
- College
of Earth Science and Engineering, Shandong Provincial Key Laboratory
of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qiang Li
- College
of Earth Science and Engineering, Shandong Provincial Key Laboratory
of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao 266590, China
| | - Maurice E. Tucker
- School
of Earth Sciences, University of Bristol, Bristol BS8 1RJ, U.K.
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Jurado V, Del Rosal Y, Jimenez de Cisneros C, Liñan C, Martin-Pozas T, Gonzalez-Pimentel JL, Hermosin B, Saiz-Jimenez C. Microbial communities in carbonate precipitates from drip waters in Nerja Cave, Spain. PeerJ 2022; 10:e13399. [PMID: 35529484 PMCID: PMC9074860 DOI: 10.7717/peerj.13399] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/17/2022] [Indexed: 01/14/2023] Open
Abstract
Research on cave microorganisms has mainly focused on the microbial communities thriving on speleothems, rocks and sediments; however, drip water bacteria and calcite precipitation has received less attention. In this study, microbial communities of carbonate precipitates from drip waters in Nerja, a show cave close to the sea in southeastern Spain, were investigated. We observed a pronounced difference in the bacterial composition of the precipitates, depending on the galleries and halls. The most abundant phylum in the precipitates of the halls close to the cave entrance was Proteobacteria, due to the low depth of this sector, the direct influence of a garden on the top soil and the infiltration of waters into the cave, as well as the abundance of members of the order Hyphomicrobiales, dispersing from plant roots, and other Betaproteobacteria and Gammaproteobacteria, common soil inhabitants. The influence of marine aerosols explained the presence of Marinobacter, Idiomarina, Thalassobaculum, Altererythrobacter and other bacteria due to the short distance from the cave to the sea. Nineteen out of forty six genera identified in the cave have been reported to precipitate carbonate and likely have a role in mineral deposition.
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Affiliation(s)
- Valme Jurado
- Instituto de Recursos Naturales y Agrobiologia (IRNAS-CSIC), Sevilla, Spain
| | | | | | - Cristina Liñan
- Departamento de Ecologia y Geologia, Facultad de Ciencias, Universidad de Malaga, Malaga, Spain
| | | | | | - Bernardo Hermosin
- Instituto de Recursos Naturales y Agrobiologia (IRNAS-CSIC), Sevilla, Spain
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Abstract
Here we review the application of molecular biological approaches to mineral precipitation in modern marine microbialites. The review focuses on the nearly two decades of nucleotide sequencing studies of the microbialites of Shark Bay, Australia; and The Bahamas. Molecular methods have successfully characterized the overall community composition of mats, pinpointed microbes involved in key metabolisms, and revealed patterns in the distributions of microbial groups and functional genes. Molecular tools have become widely accessible, and we can now aim to establish firmer links between microbes and mineralization. Two promising future directions include “zooming in” to assess the roles of specific organisms, microbial groups, and surfaces in carbonate biomineralization and “zooming out” to consider broader spans of space and time. A middle ground between the two can include model systems that contain representatives of important microbial groups, processes, and metabolisms in mats and simplify hypothesis testing. These directions will benefit from expanding reference datasets of marine microbes and enzymes and enrichments of representative microbes from mats. Such applications of molecular tools should improve our ability to interpret ancient and modern microbialites and increase the utility of these rocks as long-term recorders of microbial processes and environmental chemistry.
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Zhao J, Csetenyi L, Gadd GM. Fungal-induced CaCO 3 and SrCO 3 precipitation: a potential strategy for bioprotection of concrete. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 816:151501. [PMID: 34762953 DOI: 10.1016/j.scitotenv.2021.151501] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/03/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
Biomineralization of CaCO3 by microorganisms is a well-documented process considered applicable to concrete self-healing and metal bioremediation. Urea hydrolysis is the most widely explored and efficient pathway regarding concrete bioprotection. However, the potential of fungi has received relatively little attention compared to bacteria. In this work, we show that Fusarium cerealis, Phoma herbarum and Mucor hiemalis, isolated from concrete, could produce 828.6-941.3 mg L-1 ammonium‑nitrogen in liquid media through urea hydrolysis indicating significant urease activity, and could grow in moderate (pH 8.3) or even extremely alkaline (pH 10.6) conditions. After culture in media containing 50 mM CaCl2, at least 48.8% Ca2+ was removed from solution by the selected fungi as calcite. The accumulation of Ca by the biomass was around 83.64-114.21 mg g-1. In addition, all fungi could mediate strontium carbonate formation with F. cerealis processing the highest ability for Sr removal, with ~61% added Sr being removed from solution. Scanning electron microscopy showed carbonate biominerals were encrusted on hyphae or aggregated in fungal pellets. When equivalent concentrations of Ca2+ and Sr2+ were supplemented to the media, CaCO3 with incorporated Sr formed with F. cerealis and M. hiemalis, and Sr(Sr, Ca)(CO3)2 with P. herbarum. Our results demonstrate the potential of fungi in providing carbonate coatings for concrete surfaces and simultaneous immobilization of Sr. We anticipate our work will promote further practical field research on porous cementitious materials protection by fungi and immobilization of potentially toxic metals from metal-laden ingredients, such as fly ash and granulated ground blast furnace slag.
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Affiliation(s)
- Jiayue Zhao
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, Scotland, UK
| | - Laszlo Csetenyi
- Concrete Technology Group, Department of Civil Engineering, School of Science and Engineering, University of Dundee, Dundee, DD1 4HN, Scotland, UK
| | - Geoffrey Michael Gadd
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, Scotland, UK; State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, College of Science and Environment, China University of Petroleum, Beijing 102249, China.
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17
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Rafiq K, Ur Rehman N, Halim SA, Khan M, Khan A, Al-Harrasi A. Design, Synthesis and Molecular Docking Study of Novel 3-Phenyl-β-Alanine-Based Oxadiazole Analogues as Potent Carbonic Anhydrase II Inhibitors. Molecules 2022; 27:molecules27030816. [PMID: 35164091 PMCID: PMC8838037 DOI: 10.3390/molecules27030816] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Carbonic anhydrase-II (CA-II) is strongly related with gastric, glaucoma, tumors, malignant brain, renal and pancreatic carcinomas and is mainly involved in the regulation of the bicarbonate concentration in the eyes. With an aim to develop novel heterocyclic hybrids as potent enzyme inhibitors, we synthesized a series of twelve novel 3-phenyl-β-alanine 1,3,4-oxadiazole hybrids (4a-l), characterized by 1H- and 13C-NMR with the support of HRESIMS, and evaluated for their inhibitory activity against CA-II. The CA-II inhibition results clearly indicated that the 3-phenyl-β-alanine 1,3,4-oxadiazole derivatives 4a-l exhibited selective inhibition against CA-II. All the compounds (except 4d) exhibited good to moderate CA-II inhibitory activities with IC50 value in range of 12.1 to 53.6 µM. Among all the compounds, 4a (12.1 ± 0.86 µM), 4c (13.8 ± 0.64 µM), 4b (19.1 ± 0.88 µM) and 4h (20.7 ± 1.13 µM) are the most active hybrids against carbonic CA-II. Moreover, molecular docking was performed to understand the putative binding mode of the active compounds. The docking results indicates that these compounds block the biological activity of CA-II by nicely fitting at the entrance of the active site of CA-II. These compounds specifically mediating hydrogen bonding with Thr199, Thr200, Gln92 of CA-II.
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Affiliation(s)
- Kashif Rafiq
- Natural and Medical Sciences Research Center, University of Nizwa, P.O Box 33, Birkat Al Mauz, Nizwa 616, Oman; (K.R.); (S.A.H.); (M.K.); (A.K.)
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Najeeb Ur Rehman
- Natural and Medical Sciences Research Center, University of Nizwa, P.O Box 33, Birkat Al Mauz, Nizwa 616, Oman; (K.R.); (S.A.H.); (M.K.); (A.K.)
- Correspondence: (N.U.R.); (A.A.-H.); Tel.: +968-2544-6328 (A.A.-H.); Fax: +968-2544-6612 (A.A.-H.)
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, P.O Box 33, Birkat Al Mauz, Nizwa 616, Oman; (K.R.); (S.A.H.); (M.K.); (A.K.)
| | - Majid Khan
- Natural and Medical Sciences Research Center, University of Nizwa, P.O Box 33, Birkat Al Mauz, Nizwa 616, Oman; (K.R.); (S.A.H.); (M.K.); (A.K.)
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, P.O Box 33, Birkat Al Mauz, Nizwa 616, Oman; (K.R.); (S.A.H.); (M.K.); (A.K.)
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O Box 33, Birkat Al Mauz, Nizwa 616, Oman; (K.R.); (S.A.H.); (M.K.); (A.K.)
- Correspondence: (N.U.R.); (A.A.-H.); Tel.: +968-2544-6328 (A.A.-H.); Fax: +968-2544-6612 (A.A.-H.)
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18
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Park M, Park S, Yoo JY, Kim Y, Lee KM, Hwang DY, Son HJ. Enzyme-mediated biocalcification by a novel alkaliphilic Bacillus psychrodurans LC40 and its eco-friendly application as a biosealant for crack healing. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149841. [PMID: 34455282 DOI: 10.1016/j.scitotenv.2021.149841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Biocalcification is a natural biochemical process, which has been regarded as a promising method for sequestering heavy metals or carbon dioxide in the environment, healing cracks in concrete structures, and stabilizing soil. One of the key factors in this process is calcium carbonate-producing bacteria. The purpose of this study was to maximize the production of calcium carbonate by alkaliphilic Bacillus psychrodurans LC40 isolated from a limestone cave, by manipulating the medium composition for fast and non-detrimental crack healing, and to investigate the mechanism of its production. Strain LC40 could grow well in the strongly alkaline region (pH 9.5-11), indicating its alkaliphilic nature. The optimal medium for calcium carbonate production contained 2% tryptone, 1.5% urea, 0.15% NaHCO3, and 150 mM calcium formate (pH 6). Using this medium, the yield of calcium carbonate at 72 h was approximately 8.6-fold higher than that obtained through Urea-CaCl2 medium. In this culture, the urease and carbonic anhydrase activities were observed simultaneously, and the pH of the medium was found to have increased to 9.4, leading to maximum calcium carbonate production. This suggests that this pH value is achieved by the synergistic action of the two enzymes, resulting in a high calcium carbonate yield. The crystals were characterized by FESEM, EDS and XRD, which confirmed the production of rhombohedral and spherical calcium carbonate crystals containing vaterite and calcite. Strain LC40 completely healed a 0.75 mm wide crack in a very short time of 3 days using the optimized medium as a cementation solution. Our findings indicate that B. psychrodurans LC40 could be a promising candidate for the development of eco-friendly biosealant applicable to environmentally stressed concrete structures.
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Affiliation(s)
- Minjoo Park
- Department of Life Science and Environmental Biochemistry/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Sungjin Park
- Department of Life Science and Environmental Biochemistry/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Ji-Yeon Yoo
- Department of Life Science and Environmental Biochemistry/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Yerin Kim
- Department of Life Science and Environmental Biochemistry/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Kwang Min Lee
- Department of Life Science and Environmental Biochemistry/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Dae-Youn Hwang
- Department of Biomaterials Science, Pusan National University, Miryang 50463, Republic of Korea
| | - Hong-Joo Son
- Department of Life Science and Environmental Biochemistry/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea.
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19
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Medina Ferrer F, Rosen MR, Feyhl-Buska J, Russell VV, Sønderholm F, Loyd S, Shapiro R, Stamps BW, Petryshyn V, Demirel-Floyd C, Bailey JV, Johnson HA, Spear JR, Corsetti FA. Potential role for microbial ureolysis in the rapid formation of carbonate tufa mounds. GEOBIOLOGY 2022; 20:79-97. [PMID: 34337850 DOI: 10.1111/gbi.12467] [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: 05/23/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
Modern carbonate tufa towers in the alkaline (~pH 9.5) Big Soda Lake (BSL), Nevada, exhibit rapid precipitation rates (exceeding 3 cm/year) and host diverse microbial communities. Geochemical indicators reveal that carbonate precipitation is, in part, promoted by the mixing of calcium-rich groundwater and carbonate-rich lake water, such that a microbial role for carbonate precipitation is unknown. Here, we characterize the BSL microbial communities and evaluate their potential effects on carbonate precipitation that may influence fast carbonate precipitation rates of the active tufa mounds of BSL. Small subunit rRNA gene surveys indicate a diverse microbial community living endolithically, in interior voids, and on tufa surfaces. Metagenomic DNA sequencing shows that genes associated with metabolisms that are capable of increasing carbonate saturation (e.g., photosynthesis, ureolysis, and bicarbonate transport) are abundant. Enzyme activity assays revealed that urease and carbonic anhydrase, two microbial enzymes that promote carbonate precipitation, are active in situ in BSL tufa biofilms, and urease also increased calcium carbonate precipitation rates in laboratory incubation analyses. We propose that, although BSL tufas form partially as a result of water mixing, tufa-inhabiting microbiota promote rapid carbonate authigenesis via ureolysis, and potentially via bicarbonate dehydration and CO2 outgassing by carbonic anhydrase. Microbially induced calcium carbonate precipitation in BSL tufas may generate signatures preserved in the carbonate microfabric, such as stromatolitic layers, which could serve as models for developing potential biosignatures on Earth and elsewhere.
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Affiliation(s)
- Fernando Medina Ferrer
- Department of Earth & Environmental Sciences, University of Minnesota, Twin Cities, Minneapolis, Minnesota, USA
| | - Michael R Rosen
- US Geological Survey, California Water Science Center, Carson City, Nevada, USA
| | - Jayme Feyhl-Buska
- Department of Earth Sciences, University of Southern California, Los Angeles, California, USA
| | - Virginia V Russell
- Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, California, USA
| | - Fredrik Sønderholm
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - Sean Loyd
- Department of Geological Sciences, California State University Fullerton, Fullerton, California, USA
| | | | - Blake W Stamps
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, USA
- UES, Inc., Dayton, Ohio, USA
| | - Victoria Petryshyn
- Environmental Studies Program, University of Southern California, Los Angeles, California, USA
| | | | - Jake V Bailey
- Department of Earth & Environmental Sciences, University of Minnesota, Twin Cities, Minneapolis, Minnesota, USA
| | - Hope A Johnson
- Department of Biological Science, California State University Fullerton, Fullerton, California, USA
| | - John R Spear
- Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, Colorado, USA
| | - Frank A Corsetti
- Department of Earth Sciences, University of Southern California, Los Angeles, California, USA
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20
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Vincent J, Colin B, Lanneluc I, Sabot R, Sopéna V, Turcry P, Mahieux PY, Refait P, Jeannin M, Sablé S. New Biocalcifying Marine Bacterial Strains Isolated from Calcareous Deposits and Immediate Surroundings. Microorganisms 2021; 10:76. [PMID: 35056526 PMCID: PMC8778039 DOI: 10.3390/microorganisms10010076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 12/04/2022] Open
Abstract
Marine bacterial biomineralisation by CaCO3 precipitation provides natural limestone structures, like beachrocks and stromatolites. Calcareous deposits can also be abiotically formed in seawater at the surface of steel grids under cathodic polarisation. In this work, we showed that this mineral-rich alkaline environment harbours bacteria belonging to different genera able to induce CaCO3 precipitation. We previously isolated 14 biocalcifying marine bacteria from electrochemically formed calcareous deposits and their immediate environment. By microscopy and µ-Raman spectroscopy, these bacterial strains were shown to produce calcite-type CaCO3. Identification by 16S rDNA sequencing provided between 98.5 and 100% identity with genera Pseudoalteromonas, Pseudidiomarina, Epibacterium, Virgibacillus, Planococcus, and Bhargavaea. All 14 strains produced carbonic anhydrase, and six were urease positive. Both proteins are major enzymes involved in the biocalcification process. However, this does not preclude that one or more other metabolisms could also be involved in the process. In the presence of urea, Virgibacillus halodenitrificans CD6 exhibited the most efficient precipitation of CaCO3. However, the urease pathway has the disadvantage of producing ammonia, a toxic molecule. We showed herein that different marine bacteria could induce CaCO3 precipitation without urea. These bacteria could then be used for eco-friendly applications, e.g., the formation of bio-cements to strengthen dikes and delay coastal erosion.
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Affiliation(s)
- Julia Vincent
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Béatrice Colin
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
| | - Isabelle Lanneluc
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
| | - René Sabot
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Valérie Sopéna
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
| | - Philippe Turcry
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Pierre-Yves Mahieux
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Philippe Refait
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Marc Jeannin
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Sophie Sablé
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
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21
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Li M, Ma H, Han F, Zhai D, Zhang B, Sun Y, Li T, Chen L, Wu C. Microbially Catalyzed Biomaterials for Bone Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2104829. [PMID: 34632631 DOI: 10.1002/adma.202104829] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/08/2021] [Indexed: 06/13/2023]
Abstract
Bone is a complex mineralized tissue composed of various organic (proteins, cells) and inorganic (hydroxyapatite, calcium carbonate) substances with micro/nanoscale structures. To improve interfacial bioactivity of bone-implanted biomaterials, extensive efforts are being made to fabricate favorable biointerface via surface modification. Inspired by microbially catalyzed mineralization, a novel concept to biologically synthesize the micro/nanostructures on bioceramics, microbial-assisted catalysis, is presented. It involves three processes: bacterial adhesion on biomaterials, production of CO3 2- assisted by bacteria, and nucleation and growth of CaCO3 nanocrystals on the surface of bioceramics. The microbially catalyzed biominerals exhibit relatively uniform micro/nanostructures on the surface of both 2D and 3D α-CaSiO3 bioceramics. The topographic and chemical cues of the grown micro/nanostructures present excellent in vitro and in vivo bone-forming bioactivity. The underlying mechanism is closely related to the activation of multiple biological processes associated with bone regeneration. The study offers a microbially catalytic concept and strategy of fabricating micro/nanostructured biomaterials for tissue regeneration.
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Affiliation(s)
- Mengmeng Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Hongshi Ma
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Fei Han
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Dong Zhai
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Bingjun Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Yuhua Sun
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Tian Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Lei Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, P. R. China
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22
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Rafiq K, Khan A, Ur Rehman N, Halim SA, Khan M, Ali L, Hilal Al-Balushi A, Al-Busaidi HK, Al-Harrasi A. New Carbonic Anhydrase-II Inhibitors from Marine Macro Brown Alga Dictyopteris hoytii Supported by In Silico Studies. Molecules 2021; 26:7074. [PMID: 34885658 PMCID: PMC8658806 DOI: 10.3390/molecules26237074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 11/20/2021] [Indexed: 11/16/2022] Open
Abstract
In continuation of phytochemical investigations of the methanolic extract of Dictyopteris hoytii, we have obtained twelve compounds (1-12) through column chromatography. Herein, three compounds, namely, dimethyl 2-bromoterepthalate (3), dimethyl 2,6-dibromoterepthalate (4), and (E)-3-(4-(dimethoxymethyl)phenyl) acrylic acid (5) are isolated for the first time as a natural product, while the rest of the compounds (1, 2, 6-12) are known and isolated for the first time from this source. The structures of the isolated compounds were elucidated by advanced spectroscopic 1D and 2D NMR techniques including 1H, 13C, DEPT, HSQC, HMBC, COSY, NEOSY, and HR-MS and comparison with the reported literature. Furthermore, eight compounds (13-20) previously isolated by our group from the same source along with the currently isolated compounds (1-12) were screened against the CA-II enzyme. All compounds, except 6, 8, 14, and 17, were evaluated for in vitro bovine carbonic anhydrase-II (CA-II) inhibitory activity. Eventually, eleven compounds (1, 4, 5, 7, 9, 10, 12, 13, 15, 18, and 19) exhibited significant inhibitory activity against CA-II with IC50 values ranging from 13.4 to 71.6 μM. Additionally, the active molecules were subjected to molecular docking studies to predict the binding behavior of those compounds. It was observed that the compounds exhibit the inhibitory potential by specifically interacting with the ZN ion present in the active site of CA-II. In addition to ZN ion, two residues (His94 and Thr199) play an important role in binding with the compounds that possess a carboxylate group in their structure.
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Affiliation(s)
- Kashif Rafiq
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Nizwa 616, Oman; (K.R.); (A.K.); (S.A.H.); (M.K.); (L.A.)
| | - Ajmal Khan
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Nizwa 616, Oman; (K.R.); (A.K.); (S.A.H.); (M.K.); (L.A.)
| | - Najeeb Ur Rehman
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Nizwa 616, Oman; (K.R.); (A.K.); (S.A.H.); (M.K.); (L.A.)
| | - Sobia Ahsan Halim
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Nizwa 616, Oman; (K.R.); (A.K.); (S.A.H.); (M.K.); (L.A.)
| | - Majid Khan
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Nizwa 616, Oman; (K.R.); (A.K.); (S.A.H.); (M.K.); (L.A.)
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Liaqat Ali
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Nizwa 616, Oman; (K.R.); (A.K.); (S.A.H.); (M.K.); (L.A.)
- Department of Chemistry, University of Mianwali, Mianwali 42200, Pakistan
| | - Abdullah Hilal Al-Balushi
- Oman Animal and Plant Genetic Resources Center, P.O. Box 92, Muscat 123, Oman; (A.H.A.-B.); (H.K.A.-B.)
| | - Haitham Khamis Al-Busaidi
- Oman Animal and Plant Genetic Resources Center, P.O. Box 92, Muscat 123, Oman; (A.H.A.-B.); (H.K.A.-B.)
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Nizwa 616, Oman; (K.R.); (A.K.); (S.A.H.); (M.K.); (L.A.)
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23
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Ghumman ASM, Shamsuddin R, Nasef MM, Krivoborodov EG, Ahmad S, Zanin AA, Mezhuev YO, Abbasi A. A Degradable Inverse Vulcanized Copolymer as a Coating Material for Urea Produced under Optimized Conditions. Polymers (Basel) 2021; 13:4040. [PMID: 34833338 PMCID: PMC8621183 DOI: 10.3390/polym13224040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 11/29/2022] Open
Abstract
Global enhancement of crop yield is achieved using chemical fertilizers; however, agro-economy is affected due to poor nutrient uptake efficacy (NUE), which also causes environmental pollution. Encapsulating urea granules with hydrophobic material can be one solution. Additionally, the inverse vulcanized copolymer obtained from vegetable oils are a new class of green sulfur-enriched polymer with good biodegradation and better sulfur oxidation potential, but they possess unreacted sulfur, which leads to void generations. In this study, inverse vulcanization reaction conditions to minimize the amount of unreacted sulfur through response surface methodology (RSM) is optimized. The copolymer obtained was then characterized using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). FTIR confirmed the formation of the copolymer, TGA demonstrated that copolymer is thermally stable up to 200 °C temperature, and DSC revealed the sulfur conversion of 82.2% (predicted conversion of 82.37%), which shows the goodness of the model developed to predict the sulfur conversion. To further maximize the sulfur conversion, 5 wt% diisopropenyl benzene (DIB) as a crosslinker is added during synthesis to produce terpolymer. The urea granule is then coated using terpolymer, and the nutrient release longevity of the coated urea is tested in distilled water, which revealed that only 65% of its total nutrient is released after 40 days of incubation. The soil burial of the terpolymer demonstrated its biodegradability, as 26% weight loss happens in 52 days of incubation. Thus, inverse vulcanized terpolymer as a coating material for urea demonstrated far better nutrient release longevity compared with other biopolymers with improved biodegradation; moreover, these copolymers also have potential to improve sulfur oxidation.
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Affiliation(s)
- Ali Shaan Manzoor Ghumman
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak Darul Ridzuan, Malaysia; (A.S.M.G.); (A.A.)
- HICoE, Centre for Biofuel and Biochemical Research (CBBR), Institute of Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Rashid Shamsuddin
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak Darul Ridzuan, Malaysia; (A.S.M.G.); (A.A.)
- HICoE, Centre for Biofuel and Biochemical Research (CBBR), Institute of Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Mohamed Mahmoud Nasef
- Department of Chemical and Environmental Engineering, Malaysia Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia;
| | - Efrem G. Krivoborodov
- Institute of Chemistry and Sustainable Development, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya Sq. 9, 125047 Moscow, Russia; (E.G.K.); (A.A.Z.); (Y.O.M.)
| | - Sohaira Ahmad
- Department of Electrical Engineering, Wah Engineering College, University of Wah, Wah Cantt 47040, Punjab, Pakistan;
| | - Alexey A. Zanin
- Institute of Chemistry and Sustainable Development, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya Sq. 9, 125047 Moscow, Russia; (E.G.K.); (A.A.Z.); (Y.O.M.)
| | - Yaroslav O. Mezhuev
- Institute of Chemistry and Sustainable Development, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya Sq. 9, 125047 Moscow, Russia; (E.G.K.); (A.A.Z.); (Y.O.M.)
| | - Amin Abbasi
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak Darul Ridzuan, Malaysia; (A.S.M.G.); (A.A.)
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24
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Zeng Y, Chen Z, Du Y, Lyu Q, Yang Z, Liu Y, Yan Z. Microbiologically induced calcite precipitation technology for mineralizing lead and cadmium in landfill leachate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 296:113199. [PMID: 34271357 DOI: 10.1016/j.jenvman.2021.113199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/22/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
As a new bioremediation technology for toxic metals, microbiologically induced calcite precipitation (MICP) is gradually becoming a research focus. This study investigated the application of MICP to mineralize toxic metals (lead and cadmium) in landfill leachate for the first time. In the experiment of remediating synthetic landfill leachate (SLL) contaminated by Pb2+, 100% of the 20 mg/L Pb2+ was removed when the maximum urease activity was only 20.96 U/ml. Scanning electron microscopy and energy dispersive spectroscopy (SEM-EDS) and laser particle size characterizations of the precipitates indicate the formation of agglomerated square particles, 76.9% of which had sizes that ranged from 33.93 to 57.06 μm. Fourier transform infrared spectroscopic and X-ray diffraction analyses confirmed that the precipitates consisted predominantly of calcite crystals, and the unit cell lattice constants of the precipitates (a = b = 4.984 Å, c = 17.171 Å) matched those of calcite, while lead was fixed as hydrocerussite. In addition, the Pb-MICP precipitates were stable under continuous acid degradation (pH = 5.5), and only 1.76% of the lead was released after 15 days. In the verification test of toxic metals remediation in a real landfill leachate (RLL), all of the Pb2+ and Cd2+ (initial concentrations: Pb2+ = 25 mg/L; Cd2+ = 5.6205 mg/L) was mineralized simultaneously, which further confirmed the feasibility of MICP for toxic metal remediation in landfill leachate. However, optimizing the urea dosage and combining the ammonium recovery are necessary strategies required for improving the economic and environmental benefits of the MICP process.
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Affiliation(s)
- Yong Zeng
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Zezhi Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Yaling Du
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China
| | - Qingyang Lyu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China
| | - Ziyi Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, PR China
| | - Yang Liu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China
| | - Zhiying Yan
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China.
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25
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Fang C, Mi T, Achal V. Sustainable bio-bricks prepared with synthetic urine enabled by biomineralization reactions. Lett Appl Microbiol 2021; 73:793-799. [PMID: 34606639 DOI: 10.1111/lam.13574] [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: 06/14/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 11/28/2022]
Abstract
In this study, mineralization during brick preparation was performed with ureolytic bacterium, Lysinibacillus fusiformis that use urine as a substrate, omitting the heat that is normally required. Artificial urine for reasons of standardization was used to grow the bacterium for bio-bricks made of clay and cement, but their mineralization was enabled by biological activity instead of by heat. Scanning electron microscopy and energy dispersion X-ray spectroscopy were conducted to analyse the microstructures formed by L. fusiformis that precipitated various minerals in synthetic urine. The brick specimens were tested for compressive strength that was 59% more than control ones, whereas porosity of bio-bricks was 13% compared to 22% of control specimens. The minerals formed in the bio-bricks confirmed as struvite, apatite and calcite by Fourier-transform infrared spectroscopy and X-ray diffraction spectra, were responsible for improved strength and reduced porosity. The research provided evidence in utilizing ureolytic bacteria as a mode to mineralize clay in brick production with the use of (artificial) urine as a substrate.
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Affiliation(s)
- C Fang
- Environmental Science and Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou, China.,Department of Civil and Environmental Engineering, Technion - Israel Institute of Technology, Haifa, Israel
| | - T Mi
- Environmental Science and Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou, China
| | - V Achal
- Environmental Science and Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou, China
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26
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Ekprasert J, Pongtharangkul T, Chainakun P, Fongkaew I, Khanthasombat K, Kamngam R, Boonsuan W, Ditta ZM, Seemakram W, Boonlue S. Kinetic model of a newly-isolated Lysinibacillus sp. strain YL and elastic properties of its biogenic CaCO 3 towards biocement application. Biotechnol J 2021; 17:e2100124. [PMID: 34592060 DOI: 10.1002/biot.202100124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Biocement, calcifying bacteria-incorporated cement, offers an environmentally-friendly way to increase the cement lifespan. This work aimed to investigate the potential use of Lysinibacillus sp. strain YL towards biocement application in both theoretical and experimental ways. METHODS AND RESULTS Strain YL was grown using calcium acetate (Ca(C2 H3 O2 )2 ), calcium chloride (CaCl2 ) and calcium nitrate (Ca(NO3 )2 ). Maximum bacterial growth of ~0.09 hr-1 and the highest amount of CaCO3 precipitation of ~8.0 g/L were obtained when using Ca(C2 H3 O2 )2 . The SEM and XRD results confirmed that biogenic CaCO3 were calcites. The bulk, Young's and shear moduli of biogenic CaCO3 calculated via the VRH approximation were ~1.5-2.3 times larger than those of ordinary Portland cement. The Poisson's ratio was 0.382 and negative in some directions, suggesting its ductility and auxetic behaviors. The new model was developed to explain the growth kinetic of strain YL in the presence of Ca(C2 H3 O2 )2 , whose concentration was optimized for biocement experiments. Strain YL could increase the compressive strength of cement up to ~50% higher than that of the uninoculated cement. CONCLUSION Strain YL is a promising candidate for biocement applications. This work represents the trials of experiments and models allowing quantitatively comparison with large-scale production in the future.
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Affiliation(s)
- Jindarat Ekprasert
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | | | - Poemwai Chainakun
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Ittipon Fongkaew
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand.,Center of Excellence in Advanced Functional Materials, School of Physics, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Kamonwan Khanthasombat
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Rungtiwa Kamngam
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Wachiraya Boonsuan
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Zerlinda Mara Ditta
- Biological Science Program, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Wasan Seemakram
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Sophon Boonlue
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
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27
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Ezzat SM, Ewida AYI. Smart soil grouting using innovative urease-producing bacteria and low cost materials. J Appl Microbiol 2021; 131:2294-2307. [PMID: 33900669 DOI: 10.1111/jam.15117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/15/2021] [Accepted: 04/21/2021] [Indexed: 11/27/2022]
Abstract
AIMS Calcium carbonate is a biomineral whose precipitation could be mediated by ureolytic bacteria and contributes in strengthening of sandy soils. The type of bacteria and grade of reagents have significant influence on microbially induced calcite precipitation (MICP). In the present study, factorial experiments based on these two factors were designed to determine their potential on MICP process, taking into consideration the economic advantages while giving quality results as well. METHODS AND RESULTS For the first time, Alkalibacterium iburiense strain EE1 (GenBank accession no. MF355369.1) is reported for its biogrouting activity. Optimum growth conditions for MICP treatments were pH (9·56 ± 0·021), EC (44·7 ± 0·057 mS cm-1 ), OD600 (2·04 ± 0·015), NH4 + concentration (487·06 ± 1·021 mmol l-1 ), and urease activity (20·0 ± 0·75 mmol l-1 urea hydrolysed min-1 ) after 72-h incubation. Statistical analysis comparing the growth in technical-grade medium prepared in tap water and analytical-grade medium prepared in deionized water showed no significant differences (P = 1·0) in biomass and urease activity. In contrast to previous studies, the current approach could reduce the bacterial culture and cementation solution ratio by about 50%, using a simple surface percolation method with staged injection instead of parallel injection to treat different sand columns. Using fixation solution could immobilize the bacteria over the full length of columns for better strength improvement. The unconfined compressive strength ranged between 0·64 to 2·11 kg cm-2 , and the corresponding CaCO3 contents 5·7-38·5%. The scanning electron microscope images indicated that the precipitated CaCO3 by bacteria was stable calcite. CONCLUSIONS Alkalibacterium iburiense and technical-grade reagents under nonsterile conditions are satisfactory consolidating agents for sandy soils. SIGNIFICANCE AND IMPACT OF THE STUDY This approach is considered eco-friendly and cost-effective for future scale-up applications in various geotechnical engineering.
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Affiliation(s)
- S M Ezzat
- Microbiology Department, Central Laboratory for Environmental Quality Monitoring (CLEQM), National Water Research Center (NWRC), Cairo, Egypt
| | - A Y I Ewida
- Microbiology Department, Central Laboratory for Environmental Quality Monitoring (CLEQM), National Water Research Center (NWRC), Cairo, Egypt
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28
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New amino acid clubbed Schiff bases inhibit carbonic anhydrase II, α-glucosidase, and urease enzymes: in silico and in vitro. Med Chem Res 2021. [DOI: 10.1007/s00044-020-02696-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Khan A, Khan M, Halim SA, Khan ZA, Shafiq Z, Al-Harrasi A. Quinazolinones as Competitive Inhibitors of Carbonic Anhydrase-II (Human and Bovine): Synthesis, in-vitro, in-silico, Selectivity, and Kinetics Studies. Front Chem 2020; 8:598095. [PMID: 33335888 PMCID: PMC7736042 DOI: 10.3389/fchem.2020.598095] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 10/28/2020] [Indexed: 11/13/2022] Open
Abstract
Carbonic anhydrase-II (CA-II) is associated with glaucoma, malignant brain tumors, and renal, gastric, and pancreatic carcinomas and is mainly involved in the regulation of the bicarbonate concentration in the eyes. CA-II inhibitors can be used to reduce the intraocular pressure usually associated with glaucoma. In search of potent CA-II inhibitors, a series of quinazolinones derivatives (4a-p) were synthesized and characterized by IR and NMR spectroscopy. The inhibitory potential of all the compounds was evaluated against bovine carbonic anhydrase-II (bCA-II) and human carbonic anhydrase-II (hCA-II), and compounds displayed moderate to significant inhibition with IC50 values of 8.9-67.3 and 14.0-59.6 μM, respectively. A preliminary structure-activity relationship suggested that the presence of a nitro group on the phenyl ring at R position contributes significantly to the overall activity. Kinetics studies of the most active inhibitor, 4d, against both bCA-II and hCA-II were performed to investigate the mode of inhibition and to determine the inhibition constants (Ki). According to the kinetics results, 4d is a competitive inhibitor of bCA-II and hCA-II with Ki values of 13.0 ± 0.013 and 14.25 ± 0.017 μM, respectively. However, the selectivity index reflects that the compounds 4g and 4o are more selective for hCA-II. The binding mode of these compounds within the active sites of bCA-II and hCA-II was investigated by structure-based molecular docking. The docking results are in complete agreement with the experimental findings.
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Affiliation(s)
- Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Majid Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
- International Center for Chemical and Biological Sciences, H. E. J. Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Zulfiqar Ali Khan
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| | - Zahid Shafiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
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Golovkina DA, Zhurishkina EV, Ivanova LA, Baranchikov AE, Sokolov AY, Bobrov KS, Masharsky AE, Tsvigun NV, Kopitsa GP, Kulminskaya AA. Calcifying Bacteria Flexibility in Induction of CaCO 3 Mineralization. Life (Basel) 2020; 10:life10120317. [PMID: 33260571 PMCID: PMC7759876 DOI: 10.3390/life10120317] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 12/15/2022] Open
Abstract
Microbially induced CaCO3 precipitation (MICP) is considered as an alternative green technology for cement self-healing and a basis for the development of new biomaterials. However, some issues about the role of bacteria in the induction of biogenic CaCO3 crystal nucleation, growth and aggregation are still debatable. Our aims were to screen for ureolytic calcifying microorganisms and analyze their MICP abilities during their growth in urea-supplemented and urea-deficient media. Nine candidates showed a high level of urease specific activity, and a sharp increase in the urea-containing medium pH resulted in efficient CaCO3 biomineralization. In the urea-deficient medium, all ureolytic bacteria also induced CaCO3 precipitation although at lower pH values. Five strains (B. licheniformis DSMZ 8782, B. cereus 4b, S. epidermidis 4a, M. luteus BS52, M. luteus 6) were found to completely repair micro-cracks in the cement samples. Detailed studies of the most promising strain B. licheniformis DSMZ 8782 revealed a slower rate of the polymorph transformation in the urea-deficient medium than in urea-containing one. We suppose that a ureolytic microorganism retains its ability to induce CaCO3 biomineralization regardless the origin of carbonate ions in a cell environment by switching between mechanisms of urea-degradation and metabolism of calcium organic salts.
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Affiliation(s)
- Darya A. Golovkina
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre “Kurchatov Institute”, 188300 Gatchina, Russia; (D.A.G.); (E.V.Z.); (L.A.I.); (A.Y.S.); (K.S.B.); (G.P.K.)
- Kurchatov Genome Centre-PNPI, 188300 Gatchina, Russia
| | - Elena V. Zhurishkina
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre “Kurchatov Institute”, 188300 Gatchina, Russia; (D.A.G.); (E.V.Z.); (L.A.I.); (A.Y.S.); (K.S.B.); (G.P.K.)
- Kurchatov Genome Centre-PNPI, 188300 Gatchina, Russia
| | - Lyubov A. Ivanova
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre “Kurchatov Institute”, 188300 Gatchina, Russia; (D.A.G.); (E.V.Z.); (L.A.I.); (A.Y.S.); (K.S.B.); (G.P.K.)
- Kurchatov Genome Centre-PNPI, 188300 Gatchina, Russia
| | - Alexander E. Baranchikov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Alexey Y. Sokolov
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre “Kurchatov Institute”, 188300 Gatchina, Russia; (D.A.G.); (E.V.Z.); (L.A.I.); (A.Y.S.); (K.S.B.); (G.P.K.)
| | - Kirill S. Bobrov
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre “Kurchatov Institute”, 188300 Gatchina, Russia; (D.A.G.); (E.V.Z.); (L.A.I.); (A.Y.S.); (K.S.B.); (G.P.K.)
- Kurchatov Genome Centre-PNPI, 188300 Gatchina, Russia
| | - Alexey E. Masharsky
- Core Facility Centre for Molecular and Cell Technologies, St. Petersburg State University, 198504 St. Petersburg, Russia;
| | - Natalia V. Tsvigun
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, 119333 Moscow, Russia;
| | - Gennady P. Kopitsa
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre “Kurchatov Institute”, 188300 Gatchina, Russia; (D.A.G.); (E.V.Z.); (L.A.I.); (A.Y.S.); (K.S.B.); (G.P.K.)
| | - Anna A. Kulminskaya
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of National Research Centre “Kurchatov Institute”, 188300 Gatchina, Russia; (D.A.G.); (E.V.Z.); (L.A.I.); (A.Y.S.); (K.S.B.); (G.P.K.)
- Kurchatov Genome Centre-PNPI, 188300 Gatchina, Russia
- Correspondence: ; Tel./Fax: +7-81-3713-2014
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Medina Ferrer F, Hobart K, Bailey JV. Field detection of urease and carbonic anhydrase activity using rapid and economical tests to assess microbially induced carbonate precipitation. Microb Biotechnol 2020; 13:1877-1888. [PMID: 32720477 PMCID: PMC7533345 DOI: 10.1111/1751-7915.13630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/26/2020] [Indexed: 01/01/2023] Open
Abstract
Microbial precipitation of calcium carbonate is a widespread environmental phenomenon that has diverse engineering applications, from building and soil restoration to carbon sequestration. Urease-mediated ureolysis and CO2 (de)hydration by carbonic anhydrase (CA) are known for their potential to precipitate carbonate minerals, yet many environmental microbial community studies rely on marker gene or metagenomic approaches that are unable to determine in situ activity. Here, we developed fast and cost-effective tests for the field detection of urease and CA activity using pH-sensitive strips inside microcentrifuge tubes that change colour in response to the reaction products of urease (NH3 ) and CA (CO2 ). The urease assay proved sensitive and useful in the field to detect in situ activity in biofilms from a saline lake, a series of calcareous fens, and ferrous springs, finding relatively high urease activity in lake samples. Incubations of lake microbes with urea resulted in significantly higher CaCO3 precipitation compared to incubations with a urease inhibitor, showing that the rapid assay indicated an on-site active metabolism potentially mediating carbonate precipitation. The CA assay, however, showed less sensitivity compared to the urease test. While its sensitivity limits its utility, the assay may still be useful as a preliminary indicator given the paucity of other means for detecting CA activity in the field. Field urease, and potentially CA, activity assays complement molecular approaches and facilitate the search for carbonate-precipitating microbes and their in situ activity, which could be applied toward agriculture, engineering and carbon sequestration technologies.
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Affiliation(s)
- Fernando Medina Ferrer
- Department of Earth & Environmental SciencesCollege of Science & EngineeringUniversity of Minnesota, Twin CitiesMinneapolisMNUSA
| | - Kathryn Hobart
- Department of Earth & Environmental SciencesCollege of Science & EngineeringUniversity of Minnesota, Twin CitiesMinneapolisMNUSA
- Institute for Rock MagnetismUniversity of Minnesota, Twin CitiesMinneapolisMNUSA
| | - Jake V. Bailey
- Department of Earth & Environmental SciencesCollege of Science & EngineeringUniversity of Minnesota, Twin CitiesMinneapolisMNUSA
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Bacteria incorporated with calcium lactate pentahydrate to improve the mortar properties and self-healing occurrence. Sci Rep 2020; 10:17873. [PMID: 33087729 PMCID: PMC7578004 DOI: 10.1038/s41598-020-74127-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/14/2020] [Indexed: 11/09/2022] Open
Abstract
Concrete can be harmful to the environment due to its high energy consumption and CO2 emission and also has a potential crack formation, which can promote a drop in its strength. Therefore, concrete is considered as a non-sustainable material. The mechanisms by which bacterial oxidation of organic carbon can precipitate calcite that may fill the voids and cracks on cement-based materials have been extensively investigated to prevent and heal the micro-cracks formation. Hence, this study focused on utilizing a new alkaliphilic bacterial strain indigenous to an Indonesian site, Lysinibacillus sphaericus strain SKC/VA-1, incorporated with calcium lactate pentahydrate, as a low-cost calcium source, with various bacterial inoculum concentrations. The bacterium was employed in this study due to its ability to adapt to basic pH, thus improving the physical properties and rejuvenating the micro-cracks. Experimentally, the addition of calcium lactate pentahydrate slightly affected the mortar properties. Likewise, bacteria-incorporated mortar exhibited an enhancement in the physical properties of mortar. The highest improvement of mechanical properties (an increase of 45% and 36% for compressive and indirect tensile strength, respectively) was achieved by the addition of calcium lactate pentahydrate incorporated with 10% v/v bacterial inoculum [about 7 × 107 CFU/ml (colony-forming unit/ml)]. The self-healing took place more rapidly on bacterial mortar supplemented with calcium lactate pentahydrate than on the control specimen. XRD analysis demonstrated that the mineralogical composition of self-healing precipitates was primarily dominated by calcite (CaCO3), indicating the capacity of L. sphaericus strain SKC/VA-1 to precipitate calcite through organic carbon oxidation for self-healing the artificial crack on the mortar. To our knowledge, this is the first report on the potential utilization of the bacterium L. sphaericus incorporated with calcium lactate pentahydrate to increase the mortar properties, including its self-healing ability. However, further study with the water-cement ratio variation is required to investigate the possibility of using L. sphaericus and calcium lactate pentahydrate as an alternative method rather than reducing the water-cement ratio to enhance the mortar properties.
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Ekprasert J, Fongkaew I, Chainakun P, Kamngam R, Boonsuan W. Investigating mechanical properties and biocement application of CaCO 3 precipitated by a newly-isolated Lysinibacillus sp. WH using artificial neural networks. Sci Rep 2020; 10:16137. [PMID: 32999379 PMCID: PMC7527966 DOI: 10.1038/s41598-020-73217-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022] Open
Abstract
A newly-isolated Lysinibacillus sp. strain WH could precipitate CaCO3 using calcium acetate (Ca(C2H3O2)2), calcium chloride (CaCl2) and calcium nitrate (Ca(NO3)2) via non-ureolytic processes. We developed an algorithm to determine CaCO3 crystal structures by fitting the simulated XRD spectra to the experimental data using the artificial neural networks (ANNs). The biogenic CaCO3 crystals when using CaCl2 and Ca(NO3)2 are trigonal calcites with space group R3c, while those when using Ca(C2H3O2)2 are hexagonal vaterites with space group P6522. Their elastic properties are derived from the Voigt–Reuss–Hill (VRH) approximation. The bulk, Young's, and shear moduli of biogenic calcite are 77.812, 88.197, and 33.645 GPa, respectively, while those of vaterite are 67.082, 68.644, 25.818 GPa, respectively. Their Poisson’s ratios are ~ 0.3–0.33, suggesting the ductility behavior of our crystals. These elastic values are comparable to those found in limestone cement, but are significantly larger than those of Portland cement. Based on the biocement experiment, the maximum increase in the compressive strength of Portland cement (27.4%) was found when Ca(NO3)2 was used. An increased strength of 26.1% was also found when Ca(C2H3O2)2 was used, implying the transformation of less-durable vaterite to higher-durable calcite. CaCO3 produced by strain WH has a potential to strengthen Portland cement-based materials.
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Affiliation(s)
- Jindarat Ekprasert
- Department of Microbiology, Faculty of Science, Khon Kaen University, 123 Mitraparp Road, Muang, Khon Kaen, 40002, Thailand.
| | - Ittipon Fongkaew
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Poemwai Chainakun
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Rungtiwa Kamngam
- Department of Microbiology, Faculty of Science, Khon Kaen University, 123 Mitraparp Road, Muang, Khon Kaen, 40002, Thailand
| | - Wachiraya Boonsuan
- Department of Microbiology, Faculty of Science, Khon Kaen University, 123 Mitraparp Road, Muang, Khon Kaen, 40002, Thailand
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State-of-the-Art Review of Microbial-Induced Calcite Precipitation and Its Sustainability in Engineering Applications. SUSTAINABILITY 2020. [DOI: 10.3390/su12156281] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Microbial-induced calcite precipitation (MICP) is a promising new technology in the area of Civil Engineering with potential to become a cost-effective, environmentally friendly and sustainable solution to many problems such as ground improvement, liquefaction remediation, enhancing properties of concrete and so forth. This paper reviews the research and developments over the past 25 years since the first reported application of MICP in 1995. Historical developments in the area, the biological processes involved, the behaviour of improved soils, developments in modelling the behaviour of treated soil and the challenges associated are discussed with a focus on the geotechnical aspects of the problem. The paper also presents an assessment of cost and environmental benefits tied with three application scenarios in pavement construction. It is understood for some applications that at this stage, MICP may not be a cost-effective or even environmentally friendly solution; however, following the latest developments, MICP has the potential to become one.
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Naveed M, Duan J, Uddin S, Suleman M, Hui Y, Li H. Application of microbially induced calcium carbonate precipitation with urea hydrolysis to improve the mechanical properties of soil. ECOLOGICAL ENGINEERING 2020; 153:105885. [DOI: 10.1016/j.ecoleng.2020.105885] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2023]
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Enyedi NT, Makk J, Kótai L, Berényi B, Klébert S, Sebestyén Z, Molnár Z, Borsodi AK, Leél-Őssy S, Demény A, Németh P. Cave bacteria-induced amorphous calcium carbonate formation. Sci Rep 2020; 10:8696. [PMID: 32457467 PMCID: PMC7251137 DOI: 10.1038/s41598-020-65667-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 05/07/2020] [Indexed: 11/08/2022] Open
Abstract
Amorphous calcium carbonate (ACC) is a precursor of crystalline calcium carbonates that plays a key role in biomineralization and polymorph evolution. Here, we show that several bacterial strains isolated from a Hungarian cave produce ACC and their extracellular polymeric substance (EPS) shields ACC from crystallization. The findings demonstrate that bacteria-produced ACC forms in water-rich environment at room temperature and is stable for at least half year, which is in contrast to laboratory-produced ACC that needs to be stored in a desiccator and kept below 10 °C for avoiding crystallization. The ACC-shielding EPS consists of lipids, proteins, carbohydrates and nucleic acids. In particular, we identified large amount of long-chain fatty acid components. We suggest that ACC could be enclosed in a micella-like formula within the EPS that inhibits water infiltration. As the bacterial cells lyse, the covering protective layer disintegrates, water penetrates and the unprotected ACC grains crystallize to calcite. Our study indicates that bacteria are capable of producing ACC, and we estimate its quantity in comparison to calcite presumably varies up to 20% depending on the age of the colony. Since diverse bacterial communities colonize the surface of cave sediments in temperate zone, we presume that ACC is common in these caves and its occurrence is directly linked to bacterial activity and influences the geochemical signals recorded in speleothems.
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Affiliation(s)
- Nóra Tünde Enyedi
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117, Budapest, Hungary
| | - Judit Makk
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117, Budapest, Hungary
| | - László Kótai
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary
- Deuton-X Ltd., Selmeci u. 89, H-2030, Érd, Hungary
| | - Bernadett Berényi
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - Szilvia Klébert
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - Zoltán Sebestyén
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - Zsombor Molnár
- Department of Earth and Environmental Sciences, University of Pannonia, Egyetem út 10, H-8200, Veszprém, Hungary
| | - Andrea K Borsodi
- Department of Microbiology, Faculty of Science, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117, Budapest, Hungary
| | - Szabolcs Leél-Őssy
- Department of Physical and Applied Geology, Faculty of Science, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117, Budapest, Hungary
| | - Attila Demény
- Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Budaörsi út 45, H-1112, Budapest, Hungary
| | - Péter Németh
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary.
- Department of Earth and Environmental Sciences, University of Pannonia, Egyetem út 10, H-8200, Veszprém, Hungary.
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Aerobic and anaerobic removal of lead and mercury via calcium carbonate precipitation mediated by statistically optimized nitrate reductases. Sci Rep 2020; 10:4029. [PMID: 32132620 PMCID: PMC7055279 DOI: 10.1038/s41598-020-60951-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/11/2020] [Indexed: 01/18/2023] Open
Abstract
The nonbiodegradability nature of heavy metals renders them resident in food chain and subsequently, destructing the entire ecosystem. Therefore, this study aimed to employ nitrate reduction-driven calcium carbonate precipitation in remediation of lead and mercury aerobically and anaerobically by Proteus mirabilis 10B, for the first time. Initially, Plackett-Burman design was employed to screen of 16 independent variables for their significances on periplasmic (NAP) and membrane-bound (NAR) nitrate reductases. The levels for five significant variables and their interaction effects were further optimized by central composite design. The maximum activities of NAP and NAR recorded 2450 and 3050 U/mL by 2-fold enhancement, comparing with non-optimized medium. Under aerobic and anaerobic optimized remediation conditions, the changes in media chemistry revealed positive correlation among bacterial growth, nitrate reductase activity, pH, NO3- and NO2- consumption and removal of Ca2+, Pb2+ and Hg2+. Subsequently, the remediated precipitates were subjected to mineralogical analysis; energy dispersive X-ray patterns exhibited characteristic peaks of C, O and Ca in addition to Pb and Hg. Scanning electron microscope depicted the presence of bacterial imprints and protrusions on rough and smooth surface bioliths. However, X-ray diffraction indicated entrapment of PbCO3, Pb2O, CaPbO3, Hg and Hg2O in calcite lattice. Interestingly, such approach is feasible, efficient, cost-effective and ecofriendly for heavy metals remediation.
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Biomineralization of Carbonate Minerals Induced by The Moderate Halophile Staphylococcus Warneri YXY2. CRYSTALS 2020. [DOI: 10.3390/cryst10020058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Although biomineralization of minerals induced by microorganisms has been widely reported, the mechanisms of biomineralization and the characteristics of the biominerals precipitated needs to be studied further. In this study, Staphylococcus warneri YXY2, a moderate halophile, was used to induce the precipitation of carbonate minerals at various Mg/Ca molar ratios. To investigate the biomineralization mechanism, the growth curve, pH changes, ammonia test, the concentration of bicarbonate and carbonate ions, and the activity of carbonic anhydrase (CA) and alkaline phosphatase (ALP) were determined. X-ray powder diffraction (XRD), scanning electron microscopy - energy disperse spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning transmission electron microscopy (STEM), and stable carbon isotope analyses were used to characterize the minerals. The obtained biotic minerals were calcite, vaterite, Mg-rich calcite, and aragonite crystals. The crystallinity of aragonite decreased with increasing Mg/Ca ratios. The preferred orientation, diverse morphologies, organic substances, and more negative stable carbon isotope values proved the biogenesis of these carbonate minerals. The presence of Mg in the biotic aragonite crystals was likely related to the acidic amino acids which also facilitated the nucleation of minerals on/in the extracellular polymeric substances (EPS). Mg2+ and Ca2+ ions were able to enter into the YXY2 bacteria to induce intracellular biomineralization. Dynamics simulation using Material Studio software proved that different adsorption energies of Glutamic acid (Glu) adsorbed onto different crystal planes of aragonite led to the preferred orientation of aragonite. This study helps to deepen our understanding of biomineralization mechanisms and may be helpful to distinguish biotic minerals from abiotic minerals.
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Osinubi KJ, Eberemu AO, Ijimdiya TS, Yakubu SE, Gadzama EW, Sani JE, Yohanna P. Review of the use of microorganisms in geotechnical engineering applications. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-1974-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Rautela R, Rawat S. Analysis and optimization of process parameters for in vitro biomineralization of CaCO3 by Klebsiella pneumoniae, isolated from a stalactite from the Sahastradhara cave. RSC Adv 2020; 10:8470-8479. [PMID: 35497856 PMCID: PMC9049971 DOI: 10.1039/d0ra00090f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 02/17/2020] [Indexed: 11/21/2022] Open
Abstract
Stalactite is a speleothem which is usually made up of calcium carbonate crystals. In the present study the bacterial isolates, recovered from a stalactite from the Sahastradhara cave, were screened for their ability to precipitate calcium carbonate in order to understand whether mineralization in caves is a biogenic process or not. Five bacterial isolates were found to precipitate calcium carbonate via urease. The most potent bacterial isolate was identified as Klebsiella pneumoniae (accession number MG946801) based on 16S rDNA sequencing. The optimized conditions, for calcium carbonate precipitation, determined by response surface methodology using CCD were found to be: 1.5625% urea, 19.98% inoculum level, 6.98 pH and 38 h 24 min. The morphology and crystalline structure of the precipitated mineral were revealed by SEM. EDX analysis confirmed the presence of carbon, oxygen and calcium in a precipitated crystal. XRD analysis confirmed the crystalline structure of a mineral with rhombohedral shape and 166 Å crystal size. This bacterium can serve as a promising candidate for producing bioconcrete. Stalactite is a speleothem which is usually made up of calcium carbonate crystals.![]()
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Affiliation(s)
- Rachna Rautela
- Microbial Diversity Lab
- Department of Botany and Microbiology
- School of Life Sciences
- HNB Garhwal University
- India
| | - Seema Rawat
- Microbial Diversity Lab
- Department of Botany and Microbiology
- School of Life Sciences
- HNB Garhwal University
- India
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Saleem M, Hareem S, Khan A, Naheed S, Raza M, Hussain R, Imran M, Choudhary MI. Dual inhibitors of urease and carbonic anhydrase-II from Iris species. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2019-0407] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Twenty seven (1–27) known natural organic compounds were isolated for first time from two species of Iris, i.e. loczyi and Iris unguicularis. The structures of these compounds were deduced from the spectral data of NMR, IR, and mass spectrogram. These were evaluated against urease and carbonic anhydrase inhibition studies. For carbonic anhydrase-II inhibition studies, these compounds were evaluated by biochemical mechanism based in vitro bio-assay. Some compounds showed significant inhibition against CA-II enzyme. Compartively, compound (12) showed IC50 value of 17.60 ± 0.08 μM against urease enzyme, while compound (3) was found to be most active against carbonic anhydrase-II, having an IC50 value of 66.27 ± 0.89 μM. Izalpinin (3), 5,7-dihydroxy-2′,6-dimethoxyisoflavone (9), 4′,5,7-trihydroxy-6-methoxyflavanone (16), 4′,5,7-trihydroxy-3′,8-dimethoxyflavanone (20), 8-methoxyeriodictyol (21), and mangiferin (26) were found to be dual inhibitors of both the enyzmes. The most active compounds were docked using Autodock Vina and i-GEMDOCK softwares. The docking and in-vitro results are in agreement which showed secondary interactions with the enzymes. The compounds can serve as therapeutic agents to treat urease and carbonic anhydrase associated disorders.
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Affiliation(s)
- Muhammad Saleem
- Department of Chemistry , University of Education Lahore , Dera Ghazi Khan Campus 32200 , Punjab , Pakistan
| | - Sumaira Hareem
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi 75270 , Pakistan
| | - Ajmal Khan
- Natural and Medical Sciences Research Center , University of Nizwa , PO Box 33, 616 Birkat Al Mauz , Nizwa , Oman
| | - Suad Naheed
- Department of Biotechnology , Jinnah University for Women , 5-C, Nazimabad , Karachi 74600 , Pakistan
| | - Muslim Raza
- Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen , China
| | - Riaz Hussain
- Department of Chemistry , University of Education Lahore , Dera Ghazi Khan Campus 32200 , Punjab , Pakistan
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science , King Khalid University , Abha 61413 , Saudi Arabia
| | - M. Iqbal Choudhary
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi 75270 , Pakistan
- Department of Biochemistry, Faculty of Science , King Abdulaziz University , Jeddah , Saudi Arabia
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42
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Osinubi KJ, Eberemu AO, Gadzama EW, Ijimdiya TS. Plasticity characteristics of lateritic soil treated with Sporosarcina pasteurii in microbial-induced calcite precipitation application. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0868-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Røyne A, Phua YJ, Balzer Le S, Eikjeland IG, Josefsen KD, Markussen S, Myhr A, Throne-Holst H, Sikorski P, Wentzel A. Towards a low CO2 emission building material employing bacterial metabolism (1/2): The bacterial system and prototype production. PLoS One 2019; 14:e0212990. [PMID: 30990806 PMCID: PMC6467371 DOI: 10.1371/journal.pone.0212990] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 02/10/2019] [Indexed: 11/18/2022] Open
Abstract
The production of concrete for construction purposes is a major source of anthropogenic CO2 emissions. One promising avenue towards a more sustainable construction industry is to make use of naturally occurring mineral-microbe interactions, such as microbial-induced carbonate precipitation (MICP), to produce solid materials. In this paper, we present a new process where calcium carbonate in the form of powdered limestone is transformed to a binder material (termed BioZEment) through microbial dissolution and recrystallization. For the dissolution step, a suitable bacterial strain, closely related to Bacillus pumilus, was isolated from soil near a limestone quarry. We show that this strain produces organic acids from glucose, inducing the dissolution of calcium carbonate in an aqueous slurry of powdered limestone. In the second step, the dissolved limestone solution is used as the calcium source for MICP in sand packed syringe moulds. The amounts of acid produced and calcium carbonate dissolved are shown to depend on the amount of available oxygen as well as the degree of mixing. Precipitation is induced through the pH increase caused by the hydrolysis of urea, mediated by the enzyme urease, which is produced in situ by the bacterium Sporosarcina pasteurii DSM33. The degree of successful consolidation of sand by BioZEment was found to depend on both the amount of urea and the amount of glucose available in the dissolution reaction.
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Affiliation(s)
- Anja Røyne
- Department of Physics, University of Oslo, Oslo, Norway
- * E-mail:
| | - Yi Jing Phua
- Department of Physics, University of Oslo, Oslo, Norway
| | - Simone Balzer Le
- SINTEF Industry, Department of Biotechnology and Nanomedicine, Trondheim, Norway
| | | | | | - Sidsel Markussen
- SINTEF Industry, Department of Biotechnology and Nanomedicine, Trondheim, Norway
| | | | - Harald Throne-Holst
- Consumption Research Norway (SIFO), OsloMet–Oslo Metropolitan University, Oslo, Norway
| | - Pawel Sikorski
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
| | - Alexander Wentzel
- SINTEF Industry, Department of Biotechnology and Nanomedicine, Trondheim, Norway
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Chen X, Achal V. Biostimulation of carbonate precipitation process in soil for copper immobilization. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:705-713. [PMID: 30739023 DOI: 10.1016/j.jhazmat.2019.01.108] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 01/23/2019] [Accepted: 01/30/2019] [Indexed: 05/27/2023]
Abstract
The urease-based microbially induced carbonate precipitation (MICP) is known as effective remediation strategy in soil metals remediation; however, all related studies confined to bioaugmentation. In the present study, biostimulation process was adopted for the first time in accelerating MICP in copper (Cu) immobilization in soil. The abundance, composition, and diversity of the bacterial community after biostimulation were assessed with MiSeq Illumina sequencing analysis that confirmed number and types of ureolytic and calcifying bacteria grown significantly leading to MICP process, compared to untreated soil. The results demonstrated that biostimulation induced calcite precipitation in soil that immobilized Cu mainly in carbonated fraction of soil, while soluble-exchangeable fraction decreased from 45.54 mg kg-1 to 1.55 mg kg-1 Cu in soil. Scanning electron microscopy (SEM) cum energy-dispersive X-ray spectroscopy (EDX) evaluated structure and elemental composition in Cu immobilization after biostimulation. Fourier Transform-Infra Red (FTIR) spectroscopy depicted functional chemical groups involved in copper immobilization, while X-Ray Diffraction (XRD) identified main crystalline phases or biominerals formed during biostimulation in order to carryout Cu remediation from soil.
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Affiliation(s)
- Xueyan Chen
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China
| | - Varenyam Achal
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China; Environmental Engineering Program, Guangdong Technion-Israel Institute of Technology, Shantou, 515063, China.
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45
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Mechanism of Biomineralization Induced by Bacillus subtilis J2 and Characteristics of the Biominerals. MINERALS 2019. [DOI: 10.3390/min9040218] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Abstract: Biomineralization induced by microorganisms has become a hot spot in the field of carbonate sedimentology; however, the mechanisms involved still need to be explored. In this study, the bacterium Bacillus subtilis J2 (GenBank MG575432) was used to induce the precipitation of calcium carbonate minerals at Mg/Ca molar ratios of 0, 3, 6, 9, and 12. Bacillus subtilis J2 bacteria released ammonia to increase pH, but the ammonia released only made the pH increase to 8.25. Carbonic anhydrase was also produced to catalyze the hydration of carbon dioxide, and this process released carbonate and bicarbonate ions that not only increased pH but also elevated carbonate supersaturation. The biominerals formed at a Mg/Ca molar ratio of 0 were spherulitic, elongated, dumbbell-shaped, and irregularly rhombohedral calcite; at a Mg/Ca molar ratio of 3, the biominerals were calcite and aragonite, the weight ratio of calcite decreased from 26.7% to 15.6%, and that of aragonite increased from 73.3% to 84.4% with increasing incubation time. At higher Mg/Ca molar ratios, the biominerals were aragonite, and the crystallinity and thermal stability of aragonite decreased with increasing Mg/Ca molar ratios. FTIR results showed that many organic functional groups were present on/within the biominerals, such as C–O–C, N–H, C=O, O–H, and C–H. HRTEM-SAED examination of the ultra-thin slices of B. subtilis J2 bacteria showed that nano-sized minerals with poor crystal structure had grown or been adsorbed on the EPS coating. The EPS of the B. subtilis J2 strain contained abundant glutamic acid and aspartic acid, which could be deprotonated in an alkaline condition to adsorb Ca2+ and Mg2+ ions; this made EPS act as the nucleation sites. This study may provide some references for further understanding of the mechanism of biomineralization induced by microorganisms.
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46
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GOMAA EMANZAKARIA. Biosequestration of heavy metals by microbially induced calcite precipitation of ureolytic bacteria. ROMANIAN BIOTECHNOLOGICAL LETTERS 2019. [DOI: 10.25083/rbl/24.1/147.153] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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47
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Bhattacharya A, Naik SN, Khare SK. Efficacy of ureolytic Enterobacter cloacae EMB19 mediated calcite precipitation in remediation of Zn (II). JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2019; 54:526-532. [PMID: 30729861 DOI: 10.1080/10934529.2019.1567184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/29/2018] [Accepted: 01/05/2019] [Indexed: 05/27/2023]
Abstract
In this study, urease mediated calcite precipitation technique was used for remediation of Zn (II). A urease positive Enterobacter cloacae EMB19 was used to produce calcite impregnated with Zn ions. In co-presence of Ca (II), Zn (II) concentrations of 10 and 20 mg L-1 were completely remediated by the bacterium from the media at 72 and 96 h of incubation, respectively. Co-precipitation of Ca (II) and Zn (II) to form calcite-Zn precipitate is one of the major mechanisms of Zn remediation in the present study. Role of urease in calcite-Zn precipitation was substantiated by using urease/carbonate and ammonium enriched cell free culture supernatant (CFS) obtained after sufficient microbial growth. Using CFS, 68% removal of initial 50 mg L-1 Zn (II) was detected. Energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction pattern (XRD) of the precipitate supports calcite mediated remediation of Zn. Remediation of multiple metals viz. Cd, Zn, Cu was also analyzed using CFS laden with urease. The preparation showed 40% Cd, 23% Zn, and 8% Cu reduction from the solution containing initial 25 mg L-1 of each metal. Overall, it can be concluded that, the E. cloacae mediated calcite precipitation technique could effectively be used for alleviation of Zn (II) and other heavy metals from the contaminated environment.
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Affiliation(s)
- Amrik Bhattacharya
- a Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry , Indian Institute of Technology, Delhi , New Delhi , India
- b Center for Rural Development and Technology, Indian Institute of Technology, Delhi , New Delhi , India
| | - S N Naik
- b Center for Rural Development and Technology, Indian Institute of Technology, Delhi , New Delhi , India
| | - S K Khare
- a Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry , Indian Institute of Technology, Delhi , New Delhi , India
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48
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Zhao X, Wang M, Wang H, Tang D, Huang J, Sun Y. Study on the Remediation of Cd Pollution by the Biomineralization of Urease-Producing Bacteria. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16020268. [PMID: 30669299 PMCID: PMC6351962 DOI: 10.3390/ijerph16020268] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 12/03/2022]
Abstract
Cadmium (Cd) is a highly toxic metal that can affect human health and environmental safety. The purpose of this study was to research the removal of Cd from an environmental perspective. In this article, four highly urease-active strains (CZW-2, CZW-5, CZW-9 and CZW-12) were isolated from an abandoned mine and their phylogenetic trees were analyzed. The maximum enzyme activities, the mineralized precipitate and the removal rates of these strains were compared. The results showed that CZW-2 had the highest urease activity at 51.6 U/mL, and the removal rates of CZW-2, CZW-5, CZW-9 and CZW-12 after 120 h were 80.10%, 72.64%, 76.70% and 73.40%, with an initial concentration of Cd of 2 mM in the Cd precipitation experiments. XRD (X-ray diffractometer), EDS (Energy dispersive spectrometer) and FTIR (Fourier transform infrared spectroscopy) analysis indicated that the mineralized precipitate was CdCO3. SEM (Scanning electron microscopy) analysis revealed that the diameter of the oval-shaped mineralized product ranked from 0.5 to 2 μm. These strains were used to remedy Cd-contaminated soil, and five different fractions of Cd were measured. Compared with the control, the results of spraying pre-cultured strains containing 2% urea to remove Cd from contaminated soils showed that the exchangeable fraction of Cd decreased by 53.30%, 27.78%, 42.54% and 53.80%, respectively, whereas the carbonate-bound fraction increased by 55.42%, 20.27%, 39.67% and 34.36%, respectively, after one month. These data show that these strains can effectively reduce the bioavailability and mobility of Cd in contaminated soils. The results indicate that biomineralization based on the decomposition of substrate urea can be applied to remedy heavy contaminated soil and water.
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Affiliation(s)
- Xingqing Zhao
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China.
| | - Min Wang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China.
| | - Hui Wang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China.
| | - Ding Tang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China.
| | - Jian Huang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China.
| | - Yu Sun
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China.
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49
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Abdel-Aleem H, Dishisha T, Saafan A, AbouKhadra AA, Gaber Y. Biocementation of soil by calcite/aragonite precipitation usingPseudomonas azotoformansandCitrobacter freundiiderived enzymes. RSC Adv 2019; 9:17601-17611. [PMID: 35520555 PMCID: PMC9064560 DOI: 10.1039/c9ra02247c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 05/28/2019] [Indexed: 11/21/2022] Open
Abstract
Microbial geotechnology is the use of microorganisms and/or their derivatives to alter engineering properties of soil for improving its stability, strength and stiffness.
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Affiliation(s)
- Heba Abdel-Aleem
- Department of Microbiology and Immunology
- Faculty of Pharmacy
- Beni-Suef University
- Beni-Suef
- Egypt
| | - Tarek Dishisha
- Department of Microbiology and Immunology
- Faculty of Pharmacy
- Beni-Suef University
- Beni-Suef
- Egypt
| | - Amal Saafan
- Department of Pharmaceutical Microbiology
- Faculty of Pharmacy
- Menoufia University
- Shebeen El-kom
- Egypt
| | | | - Yasser Gaber
- Department of Microbiology and Immunology
- Faculty of Pharmacy
- Beni-Suef University
- Beni-Suef
- Egypt
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50
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Giri A, Banerjee UC, Kumar M, Pant D. Intracellular carbonic anhydrase from Citrobacter freundii and its role in bio-sequestration. BIORESOURCE TECHNOLOGY 2018; 267:789-792. [PMID: 30072238 DOI: 10.1016/j.biortech.2018.07.089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/16/2018] [Accepted: 07/18/2018] [Indexed: 06/08/2023]
Abstract
The aim of this work was to study the CO2 bio-sequestration application of indigenous Citrobacter species and its carbonic anhydrase (CA). Intracellular CA was purified from Citrobacter freundii (CF; accession no: MH283871) isolated from limestone rock site in Kumaun region of Indian Himalaya studied for the sequestration of carbon dioxide and the formation of calcite. CF showed maximum CA enzyme activity at 11.3 EU/ml at pH 7.0 and 37 °C. Hydration of CO2 into carbonate was characterized by calcite phase of calcium carbonate using absorption spectroscopy and imaging technique. Purified CA showed a significantly high CO2 sequestration capacity of 230 mg CaCO3/mg of purified as compared to crude enzyme (50 mg CaCO3/ml of enzyme).
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Affiliation(s)
- Anand Giri
- School of Earth and Environmental Sciences, Central University of Himachal Pradesh, Dharamshala, Himachal Pradesh, India
| | - Uttam Chand Banerjee
- National Institute of Pharmaceutical Education and Research, Mohali, Punjab, India
| | - Manoj Kumar
- Indian Oil Corporation R&D Centre, Sector 13, Faridabad, India
| | - Deepak Pant
- School of Earth and Environmental Sciences, Central University of Himachal Pradesh, Dharamshala, Himachal Pradesh, India.
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