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Rodrigues NA, Buffo MM, Casciatori FP, Farinas CS. New approaches for solubilization of phosphate rocks through solid-state fermentation by optimization of oxalic acid production. BIORESOURCE TECHNOLOGY 2024; 408:131165. [PMID: 39069142 DOI: 10.1016/j.biortech.2024.131165] [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: 06/17/2024] [Revised: 07/23/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
This study explores the enhancement of phosphate rock (PR) solubilization through solid-state fermentation (SSF) by optimizing oxalic acid production using Aspergillus niger. Key process parameters, including the use of agro-industrial by-products (sugarcane bagasse (SCB), wheat bran (WB), soybean bran (SB)), pH levels, sucrose supplementation, and methanol addition, were systematically evaluated through sequential experimental designs. The results identified SCB and SB in a 1:1 ratio as the most effective substrate. Remarkably, the inclusion of methanol (7 %) and sucrose (0.5 %) resulted in a 3-fold increase in oxalic acid production. Under these optimized conditions, significant phosphorus solubilization of Bayóvar, Itafós, and Registro PRs was achieved, with Bayóvar rock releasing up to 12.1 g/kgds of soluble P (63.8 % efficiency). Additionally, the SSF process effectively released organic phosphorus from the agro-industrial substrates. These findings hold promise for advancing the bio-based economy and developing future industrial biofertilizers.
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Affiliation(s)
- Natalia Alvarez Rodrigues
- Graduate Program of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil; Embrapa Instrumentação, Rua XV de Novembro 1452, 13565-905 São Carlos, SP, Brazil; Chemical Engineering Department, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil
| | - Mariane Molina Buffo
- Chemical Engineering Department, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil
| | - Fernanda Perpétua Casciatori
- Graduate Program of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil; Chemical Engineering Department, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil
| | - Cristiane Sanchez Farinas
- Graduate Program of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luís km 235 - SP-310, 13565-905 São Carlos, SP, Brazil; Embrapa Instrumentação, Rua XV de Novembro 1452, 13565-905 São Carlos, SP, Brazil.
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Suliman Al Ebraheem J, Ahmad Alkhoder MN, Tulaimat RH. "Synthesis and characterization of mesoporous V-Mo-MCM-41 nanocatalysts: Enhancing efficiency in oxalic acid synthesis". Heliyon 2024; 10:e24652. [PMID: 38312655 PMCID: PMC10835253 DOI: 10.1016/j.heliyon.2024.e24652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/06/2024] Open
Abstract
Mesoporous V-Mo-MCM-41 nano molecular sieves were synthesized via the direct hydrothermal method, employing tetraethyl orthosilicate (TEOS) as a silica source and cetyltrimethylammonium bromide (CTAB) as a surfactant template. Comprehensive characterization through N2-adsorption (BET), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDX) confirmed the mesoporous nature of the catalysts, revealing variations in specific surface area and a significant pore diameter of 6.3 nm, enhancing their versatility for various chemical transformations. The nanoscale structure was further validated through XRD analysis and SEM images. The catalytic efficiency of V-Mo-MCM-41 was demonstrated by synthesizing oxalic acid from molasses, and a response surface methodology (RSM) study on four key variables revealed a maximum yield of 83 % within 1 h using minimal sulfuric acid, showcasing the effectiveness of the prepared catalysts.
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Affiliation(s)
| | | | - Reem Hani Tulaimat
- Department of Chemistry, Faculty of Science, Albaath University, Homs, Syria
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Wu S, Huo H, Shi Y, Zhang F, Gu T, Li Z. Extraction and application of extracellular polymeric substances from fungi. ADVANCES IN APPLIED MICROBIOLOGY 2023; 125:79-106. [PMID: 38783725 DOI: 10.1016/bs.aambs.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Extracellular polymeric substances (EPS) are extracellular metabolites of microorganisms, highly associated with microbial function, adaptation, and growth. The main compounds in EPS have been revealed to be proteins, polysaccharides, nucleic acids, humic substances, lipids, etc. EPS are not only biomass, but also a biogenic material. EPS have high specific surface, abundant functional groups, and excellent degradability. In addition, they are more extensible to the environment than the microbial cells themselves, which exhibits their huge advantages. Therefore, they have been applied in many fields, such as the environment, ecosystem, basic commodities, and medicine. However, the functions of EPS highly depend on the suitable extraction process, as different extraction methods have different effects on their composition, structure, and function. There are many types of EPS extraction methods, in which physical and chemical methods have been widely utilized. This review summarizes the extraction methods and applications of EPS. In addition, it considers some important gaps in current knowledge, and indicates perspectives of EPS for their future study.
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Affiliation(s)
- Sijia Wu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, P.R. China
| | - Hongxun Huo
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, P.R. China
| | - Yixiao Shi
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, P.R. China
| | - Feiran Zhang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, P.R. China
| | - Tingting Gu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu, P.R. China
| | - Zhen Li
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, P.R. China; Ministry of Natural Resources National Research Center for Geoanalysis, Key Laboratory of Eco-geochemistry, Beijing, P.R. China; Jiangsu Provincial Key Lab of Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing, P.R. China.
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Liapun V, Motola M. Current overview and future perspective in fungal biorecovery of metals from secondary sources. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 332:117345. [PMID: 36724599 DOI: 10.1016/j.jenvman.2023.117345] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Microorganisms are intimately involved in many biogeochemical processes that underpin the transformation of metals and cycling of related substances, such as metalloids and radionuclides. Many processes determine the mobility and bioavailability of metals, thereby influencing their transfer to the environment and living organisms. These processes are closely related to global phenomena such as soil formation and bioweathering. In addition to environmental significance, microbial metal transformations play an essential role in both in situ and ex situ bioremediation processes for solid and liquid wastes. The solubilization of heavy metals from industrial waste and soil is commonly used in bioremediation. Moreover, immobilization processes are applicable to bioremediation of metals and radionuclides from aqueous solutions. This review provides an overview of critical metal extraction and recovery from secondary sources, applied microorganisms and methods, metal-microbe interactions, as well as a detailed description of known metal recovery mechanisms.
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Affiliation(s)
- Viktoriia Liapun
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia.
| | - Martin Motola
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, 842 15, Bratislava, Slovakia.
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Kumar S, Panwar P, Sehrawat N, Upadhyay SK, Sharma AK, Singh M, Yadav M. Oxalic acid: recent developments for cost-effective microbial production. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Abstract
Organic acids are the important compounds that have found numerous applications in various industries. Oxalic acid is one of the important organic acids with different industrial applications. Different microbes have been reported as important sources of various organic acids. Majority of studies have been carried on fungal sources for oxalic acid production. Aspergillus sp. has been found efficient oxalic acid producer. Microbial productions of metabolites including organic acids are considered cost effective and eco-friendly approach over chemical synthesis. Fermentative production of microbial oxalic acid seems to be a good alternative as compared to chemical methods. Microbial production of oxalic acid still requires the extensive and elaborated research for its commercial production from efficient microbes using cost effective substrates. The present text summarizes the production of oxalic acid, its applications and recent developments in the direction of fermentative production of microbial oxalic acid.
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Affiliation(s)
- Sachin Kumar
- Department of Bioinformatics , Janta Vedic College , Baraut-Baghpat , Uttar Pradesh 250611 , India
| | - Priya Panwar
- Department of Biotechnology , M.M.E.C., Maharishi Markandeshwar (Deemed to be University) , Mullana-Ambala 133207 , India
| | - Nirmala Sehrawat
- Department of Biotechnology , M.M.E.C., Maharishi Markandeshwar (Deemed to be University) , Mullana-Ambala 133207 , India
| | - Sushil Kumar Upadhyay
- Department of Biotechnology , M.M.E.C., Maharishi Markandeshwar (Deemed to be University) , Mullana-Ambala 133207 , India
| | - Anil Kumar Sharma
- Department of Biotechnology , M.M.E.C., Maharishi Markandeshwar (Deemed to be University) , Mullana-Ambala 133207 , India
| | - Manoj Singh
- Department of Biotechnology , M.M.E.C., Maharishi Markandeshwar (Deemed to be University) , Mullana-Ambala 133207 , India
| | - Mukesh Yadav
- Department of Biotechnology , M.M.E.C., Maharishi Markandeshwar (Deemed to be University) , Mullana-Ambala 133207 , India
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Chen Z, Wang X, Luo J, Zhang B, Shen F, Li B, Yang J. Synthesis and characterization of rod-like amino acids/nanohydroxyapatite composites to inhibit osteosarcoma. RSC Adv 2022; 12:36103-36114. [PMID: 36545101 PMCID: PMC9756758 DOI: 10.1039/d2ra03784j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/26/2022] [Indexed: 12/23/2022] Open
Abstract
In this study, rod-like hydroxyapatite (HA) with uniform morphology and controllable particle size modified by doping with two different amino acids (alanine and threonine) was synthesized by a microwave hydrothermal method. The physical and chemical properties of the composites were tested by utilizing X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), general thermogravimetric analysis (TG) and scanning electron microscopy (SEM). The SEM and XRD results show that the presence of amino acids (especially threonine) can significantly reduce the aspect ratio and crystallinity of hydroxyapatite. Pure hydroxyapatite and modified hydroxyapatite doped with two different proportions of amino acids were cultured with mouse osteoblasts (MC3T3-E1) for 1, 3 and 5 days, respectively, nanohydroxyapatite modified by threonine has better biocompatibility compared with pure hydroxyapatite. The amino acid-modified hydroxyapatite samples were co-cultured with osteosarcoma cells (MG63) for 1, 4 and 7 days, respectively, and showed better inhibitory effects on osteosarcoma cells. The nanohydroxyapatite doped with amino acids could be used as a potential drug that promotes bone repair and inhibits the growth of osteosarcoma cells.
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Affiliation(s)
- Zhengxiong Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyWuhan 430070P. R. China,Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of TechnologyWuhan 430070P. R. China
| | - Xinyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyWuhan 430070P. R. China,Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen ValleyFoshan 528200P. R. China,Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of TechnologyWuhan 430070P. R. China
| | - Jing Luo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyWuhan 430070P. R. China,Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of TechnologyWuhan 430070P. R. China
| | - Bowen Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyWuhan 430070P. R. China,Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of TechnologyWuhan 430070P. R. China
| | - Fei Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyWuhan 430070P. R. China,Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of TechnologyWuhan 430070P. R. China
| | - Binbin Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyWuhan 430070P. R. China,Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of TechnologyWuhan 430070P. R. China
| | - Jing Yang
- School of Foreign Languages, Wuhan University of TechnologyWuhan 430070P. R. China
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Silva PV, Pereira LM, Mundim GDSM, Maciel GM, de Araújo Gallis RB, Mendes GDO. Field evaluation of the effect of Aspergillus niger on lettuce growth using conventional measurements and a high-throughput phenotyping method based on aerial images. PLoS One 2022; 17:e0274731. [PMID: 36121857 PMCID: PMC9484672 DOI: 10.1371/journal.pone.0274731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/04/2022] [Indexed: 11/21/2022] Open
Abstract
Plant microbiome engineering is a promising tool to unlock crop productivity potential and exceed the yield obtained with conventional chemical inputs. We studied the effect of Aspergillus niger inoculation on in-field lettuce (Lactuca sativa) growth in soils with limiting and non-limiting P concentrations. Lettuce plants originating from inoculated seeds showed increased plant diameter (6.9%), number of leaves (8.1%), fresh weight (23.9%), and chlorophyll content (3.8%) as compared to non-inoculated ones. Inoculation of the seedling substrate just before transplanting was equally efficient to seed inoculation, while application of a granular formulation at transplanting did not perform well. Plant response to P addition was observed only up to 150 kg P2O5 ha-1, but A. niger inoculation allowed further increments in all vegetative parameters. We also employed a high-throughput phenotyping method based on aerial images, which allowed us to detect changes in plants due to A. niger inoculation. The visible atmospherically resistant index (VARI) produced an accurate prediction model for chlorophyll content, suggesting this method might be used to large-scale surveys of croplands inoculated with beneficial microorganisms. Our findings demonstrate that A. niger inoculation surpasses the yield obtained with conventional chemical inputs, allowing productivity gains not reached by just increasing P doses.
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Affiliation(s)
- Patrick Vieira Silva
- Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Monte Carmelo, Minas Gerais, Brazil
| | - Lucas Medeiros Pereira
- Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Monte Carmelo, Minas Gerais, Brazil
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Kang X, Csetenyi L, Gao X, Gadd GM. Solubilization of struvite and biorecovery of cerium by Aspergillus niger. Appl Microbiol Biotechnol 2022; 106:821-833. [PMID: 34981166 PMCID: PMC8763747 DOI: 10.1007/s00253-021-11721-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 11/04/2022]
Abstract
Cerium has many modern applications such as in renewable energies and the biosynthesis of nanomaterials. In this research, natural struvite was solubilized by Aspergillus niger and the biomass-free struvite leachate was investigated for its ability to recover cerium. It was shown that struvite was completed solubilized following 2 weeks of fungal growth, which released inorganic phosphate (Pi) from the mineral by the production of oxalic acid. Scanning electron microscopy (SEM) showed that crystals with distinctive morphologies were formed in the natural struvite leachate after mixing with Ce3+. Energy-dispersive X-ray analysis (EDXA), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) confirmed the formation of cerium phosphate hydrate [Ce(PO4)·H2O] at lower Ce concentrations and a mixture of phosphate and cerium oxalate decahydrate [Ce2(C2O4)3·10H2O] at higher Ce concentrations. The formation of these biogenic Ce minerals leads to the removal of > 99% Ce from solution. Thermal decomposition experiments showed that the biogenic Ce phosphates could be transformed into a mixture of CePO4 and CeO2 (cerianite) after heat treatment at 1000 °C. These results provide a new perspective of the fungal biotransformation of soluble REE species using struvite leachate, and also indicate the potential of using the recovered REE as biomaterial precursors with possible applications in the biosynthesis of novel nanomaterials, elemental recycling and biorecovery. KEY POINTS: • Cerium was recovered using a struvite leachate produced by A. niger. • Oxalic acid played a major role in struvite solubilization and Ce phosphate biorecovery. • Resulting nanoscale mineral products could serve as a precursor for Ce oxide synthesis.
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Affiliation(s)
- Xia Kang
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK, Scotland
- Key Laboratory of Environmental and Applied Microbiology, CAS; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Laszlo Csetenyi
- Concrete Technology Group, Department of Civil Engineering, University of Dundee, Dundee,, DD1 4HN, UK, Scotland
| | - Xiang Gao
- School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, Scotland, UK
| | - Geoffrey Michael Gadd
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK, Scotland.
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, College of Chemical Engineering and Environment, China University of Petroleum, 18 Fuxue Road, Changping District, Beijing, 102249, China.
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