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Campaña-Pérez JF, Portero Barahona P, Martín-Ramos P, Carvajal Barriga EJ. Ecuadorian yeast species as microbial particles for Cr(VI) biosorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:28162-28172. [PMID: 31363969 DOI: 10.1007/s11356-019-06035-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Pollution caused by heavy metals is a prime concern due to its impact on human health, animals, and ecosystems. Cr(VI), generated in a range of different industries as a liquid effluent, is one of the most frequent contaminants. In the work presented herein, the adsorption efficiency of three species of native yeasts from Ecuador (Kazachstania yasuniensis, Kodamaea transpacifica, and Saturnispora quitensis) for Cr(VI) removal from simulated wastewater was assessed, taking Saccharomyces cerevisiae as a reference. After disruption of the flocs of yeast with a cationic surfactant, adsorption capacity, kinetics, and biosorption isotherms were studied. K. transpacifica isolate was found to feature the highest efficiency among the four yeasts tested, as a result of its advantageous combination of surface charge, individual cell size (4.04 μm), and surface area (1588.27 m2/L). The performance of S. quitensis was only slightly lower. The remarkable biosorption capacities of these two isolates (476.19 and 416.67 mg of Cr(VI)/g of yeast, respectively) evidence the potential of non-conventional yeast species as sorption microbial particles for polluted water remediation.
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Affiliation(s)
- Juan Fernando Campaña-Pérez
- Centro Neotropical para Investigación de la Biomasa (CNIB), Colección de Levaduras Quito Católica (CLQCA), Pontificia Universidad Católica del Ecuador, Av. 12 de Octubre 1076 y Roca, Apartado, 17-01-2184, Quito, Ecuador.
| | - Patricia Portero Barahona
- Centro Neotropical para Investigación de la Biomasa (CNIB), Colección de Levaduras Quito Católica (CLQCA), Pontificia Universidad Católica del Ecuador, Av. 12 de Octubre 1076 y Roca, Apartado, 17-01-2184, Quito, Ecuador
| | - Pablo Martín-Ramos
- Department of Agricultural and Environmental Sciences, EPS, Instituto Universitario de Investigación en Ciencias Ambientales (IUCA), University of Zaragoza, Carretera de Cuarte, s/n, 22071, Huesca, Spain
| | - Enrique Javier Carvajal Barriga
- Centro Neotropical para Investigación de la Biomasa (CNIB), Colección de Levaduras Quito Católica (CLQCA), Pontificia Universidad Católica del Ecuador, Av. 12 de Octubre 1076 y Roca, Apartado, 17-01-2184, Quito, Ecuador
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Laser Mutagenesis of Phellinus igniarius Protoplasts for the Selective Breeding of Strains with High Laccase Activity. Appl Biochem Biotechnol 2019; 190:584-600. [PMID: 31399928 DOI: 10.1007/s12010-019-03097-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 07/18/2019] [Indexed: 01/20/2023]
Abstract
Phellinus igniarius is a medicinal fungus that utilizes lignin as a nutrient substrate. This fungus has a weak lignin degradation ability and, as a result, a slow growth rate. Laccases are crucial enzymes for lignin degradation in P. igniarius, and thus, the cultivation of strains with high laccase activity is expected to increase the growth rate of P. igniarius. To generate P. igniarius strains with high laccase activity, we performed laser mutagenesis of P. igniarius protoplasts and screened for mutants with high laccase activity. Our results showed that the laser power density and P. igniarius protoplast survival rate exhibited a power-function relationship. The power density threshold value between lethality and growth promotion was 0.24 mW/mm2. Mutagenesis was carried out using a laser beam diameter of 3 mm and an irradiation period of 40 min. After five generations of selection, we identified a high laccase activity strain, termed SJZ2. The laccase activity in SJZ2 during 4 h of fermentation was increased by 36.84% in comparison with the control and ranged from 0.20216 to 0.27664 U. The Km and Vmax of the laccase produced by SJZ2 were 0.21 mmol/mL and 0.53 mmol/L/min, respectively. This study demonstrated the feasibility of laser mutagenesis of P. igniarius protoplasts for the selection of high laccase activity. This study characterized the key factors in the laser mutagenesis process of P. igniarius protoplasts and provided a reference for the application of lasers in biological mutagenesis. Future studies should evaluate the bioactive functionality and stability of this novel strain of P. igniarius, particularly the organoleptic and medical characteristics of the fruiting bodies.
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Shreadah MA, Rizk OEM, Aly-Eldeen MA, Rashad AR, Mahmoud ME. Removal of Some Toxic Ions from Seawater and Wastewater by Sorption onto Natural, Synthetic Hydroxyapatite and Alginate-Hydroxyapatite Composite Nanoparticles: A Comparative Study. ACTA ACUST UNITED AC 2019. [DOI: 10.4236/jep.2019.109069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wang T, Sun H, Ren X, Li B, Mao H. Evaluation of biochars from different stock materials as carriers of bacterial strain for remediation of heavy metal-contaminated soil. Sci Rep 2017; 7:12114. [PMID: 28935871 PMCID: PMC5608944 DOI: 10.1038/s41598-017-12503-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 09/06/2017] [Indexed: 11/17/2022] Open
Abstract
Two kinds of biochars, one derived from corn straw and one from pig manure, were studied as carriers of a mutant genotype from Bacillus subtilis (B38) for heavy metal contaminated soil remediation. After amendment with biochar, the heavy metal bioavailability decreased. Moreover, the heavy metal immobilization ability of the biochar was enhanced by combining it with B38. The simultaneous application of B38 and pig manure-derived biochar exhibited a superior effect on the promotion of plant growth and the immobilization of heavy metals in soil. The plant biomass increased by 37.9% and heavy metal concentrations in the edible part of lettuce decreased by 69.9–96.1%. The polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) profiles revealed that pig manure-derived biochar could enhance the proliferation of both exotic B38 and native microbes. These results suggest that B38 carried by pig manure-derived biochar may be a promising candidate for the remediation of soils contaminated by multiple heavy metals.
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Affiliation(s)
- Ting Wang
- Key Laboratory of Pollution Processes and Environmental Criteria of Ministry of Education of the People's Republic of China, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, People's Republic of China.,Centre for Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, People's Republic of China
| | - Hongwen Sun
- Key Laboratory of Pollution Processes and Environmental Criteria of Ministry of Education of the People's Republic of China, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, People's Republic of China.
| | - Xinhao Ren
- Key Laboratory of Pollution Processes and Environmental Criteria of Ministry of Education of the People's Republic of China, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, People's Republic of China.,School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Bing Li
- Key Laboratory of Pollution Processes and Environmental Criteria of Ministry of Education of the People's Republic of China, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, People's Republic of China
| | - Hongjun Mao
- Centre for Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, People's Republic of China
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Yin D, Peng H, Yin H, Zhou S, Xiong S, Liu Z, Dang Z. Effect of Pb 2+, Cd 2+, Cu 2+ and dissolved organic carbon (DOC) on the distribution and partition of decabromodiphenyl ether (BDE-209) in a water–sediment system. RSC Adv 2015. [DOI: 10.1039/c5ra17443k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The combined pollution of polybrominated diphenyl ethers (PBDEs) and heavy metals in electronic waste dismantling areas has received increasing concern in recent years.
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Affiliation(s)
- Donggao Yin
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters
- School of Environment and Energy
- South China University of Technology
- Guangzhou 510006
- P. R. China
| | - Hui Peng
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Hua Yin
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters
- School of Environment and Energy
- South China University of Technology
- Guangzhou 510006
- P. R. China
| | - Su Zhou
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters
- School of Environment and Energy
- South China University of Technology
- Guangzhou 510006
- P. R. China
| | - Shichang Xiong
- Department of Environmental Engineering
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Zehua Liu
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters
- School of Environment and Energy
- South China University of Technology
- Guangzhou 510006
- P. R. China
| | - Zhi Dang
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters
- School of Environment and Energy
- South China University of Technology
- Guangzhou 510006
- P. R. China
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Wang T, Sun H, Mao H, Zhang Y, Wang C, Zhang Z, Wang B, Sun L. The immobilization of heavy metals in soil by bioaugmentation of a UV-mutant Bacillus subtilis 38 assisted by NovoGro biostimulation and changes of soil microbial community. JOURNAL OF HAZARDOUS MATERIALS 2014; 278:483-90. [PMID: 24998205 DOI: 10.1016/j.jhazmat.2014.06.028] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 04/21/2014] [Accepted: 06/06/2014] [Indexed: 06/03/2023]
Abstract
Bacillus subtilis 38 (B38) is a mutant species of Bacillus subtilis acquired by UV irradiation with high cadmium tolerance. This study revealed that B38 was a good biosorbent for the adsorption of multiple heavy metals (cadmium, chromium, mercury, and lead). Simultaneous application of B38 and NovoGro (SNB) exhibited a synergetic effect on the immobilization of heavy metals in soil. The heavy metal concentrations in the edible part of the tested plants (lettuce, radish, and soybean) under SNB treatment decreased by 55.4-97.9% compared to the control. Three single extraction methods, diethylenetriaminepentaacetic acid (DTPA), Mehlich 3 (M3), and the first step of the Community Bureau of Reference method (BCR1), showed good predictive capacities for metal bioavailability to leafy, rhizome, and leguminous plant, respectively. The polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) profiles revealed that NovoGro could enhance the proliferation of both exotic B38 and native microbes. Finally, the technology was checked in the field, the reduction in heavy metal concentrations in the edible part of radish was in the range between 30.8% and 96.0% after bioremediation by SNB treatment. This study provides a practical strategy for the remediation of farmland contaminated by multiple heavy metals.
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Affiliation(s)
- Ting Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; Urban Transport Emission Control Research Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
| | - Hongjun Mao
- Urban Transport Emission Control Research Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Yanfeng Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Cuiping Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Zhiyuan Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Baolin Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Lei Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
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Figueiredo H, Quintelas C. Tailored zeolites for the removal of metal oxyanions: overcoming intrinsic limitations of zeolites. JOURNAL OF HAZARDOUS MATERIALS 2014; 274:287-299. [PMID: 24794984 DOI: 10.1016/j.jhazmat.2014.04.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 03/24/2014] [Accepted: 04/09/2014] [Indexed: 06/03/2023]
Abstract
This review aims to present a global view of the efforts conducted to convert zeolites into efficient supports for the removal of heavy metal oxyanions. Despite lacking affinity for these species, due to inherent charge repulsion between zeolite framework and anionic species, zeolites have still received considerable attention from the scientific community, since their versatility allowed tailoring them to answer specific requirements. Different processes for the removal and recovery of toxic metals based on zeolites have been presented. These processes resort to modification of the zeolite surface to allow direct adsorption of oxyanions, or by combination with reducing agents for oxyanions that allow ion-exchange with the converted species by the zeolite itself. In order to testify zeolite versatility, as well as covering the wide array of physicochemical constraints that oxyanions offer, chromium and arsenic oxyanions were selected as model compounds for a review of treatment/remediation strategies, based on zeolite modification.
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Affiliation(s)
- Hugo Figueiredo
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Cristina Quintelas
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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Current awareness on yeast. Yeast 2009. [DOI: 10.1002/yea.1619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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