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Buzzo BB, Lima NSM, Pereira PAM, Gomes-Pepe ES, Sartini CCF, Lemos EGDM. Lignin degradation by a novel thermophilic and alkaline yellow laccase from Chitinophaga sp. Microbiol Spectr 2024; 12:e0401323. [PMID: 38712938 DOI: 10.1128/spectrum.04013-23] [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: 11/23/2023] [Accepted: 03/19/2024] [Indexed: 05/08/2024] Open
Abstract
Laccases (EC 1.10.3.2) are oxidoreductases that belong to the multicopper oxidase subfamily and are classified as yellow/white or blue according to their absorption spectrum. Yellow laccases are more useful for industrial processes since they oxidize nonphenolic compounds in the absence of a redox mediator and stand out for being more stable and functional under extreme conditions. This study aimed to characterize a new laccase that was predicted to be present in the genome of Chitinophaga sp. CB10 - Lac_CB10. Lac_CB10, with a molecular mass of 100.06 kDa, was purified and characterized via biochemical assays using guaiacol as a substrate. The enzyme demonstrated extremophilic characteristics, exhibiting relative activity under alkaline conditions (CAPS buffer pH 10.5) and thermophilic conditions (80-90°C), as well as maintaining its activity above 50% for 5 h at 80°C and 90°C. Furthermore, Lac_CB10 presented a spectral profile typical of yellow laccases, exhibiting only one absorbance peak at 300 nm (at the T2/T3 site) and no peak at 600 nm (at the T1 site). When lignin was degraded using copper as an inducer, 52.27% of the material was degraded within 32 h. These results highlight the potential of this enzyme, which is a novel yellow laccase with thermophilic and alkaline activity and the ability to act on lignin. This enzyme could be a valuable addition to the biorefinery process. In addition, this approach has high potential for industrial application and in the bioremediation of contaminated environments since these processes often occur at extreme temperatures and pH values. IMPORTANCE The characterization of the novel yellow laccase, Lac_CB10, derived from Chitinophaga sp. CB10, represents a significant advancement with broad implications. This enzyme displays exceptional stability and functionality under extreme conditions, operating effectively under both alkaline (pH 10.5) and thermophilic (80-90°C) environments. Its capability to maintain considerable activity over extended periods, even at high temperatures, showcases its potential for various industrial applications. Moreover, its distinctive ability to efficiently degrade lignin-demonstrated by a significant 52.27% degradation within 32 h-signifies a promising avenue for biorefinery processes. This newfound laccase's characteristics position it as a crucial asset in the realm of bioremediation, particularly in scenarios involving contamination at extreme pH and temperature levels. The study's findings highlight the enzyme's capacity to address challenges in industrial processes and environmental cleanup, signifying its vital role in advancing biotechnological solutions.
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Affiliation(s)
- Bárbara Bonfá Buzzo
- Department of Agricultural, Livestock and Environmental Biotechnology, São Paulo State University Júlio de Mesquita Filho, Jaboticabal, São Paulo, Brazil
- Molecular Biology Laboratory, Institute for Research in Bioenergy (IPBEN), Jaboticabal, São Paulo, Brazil
- Agricultural Microbiology Graduate Program at UNESP, Jaboticabal, São Paulo, Brazil
| | - Natália Sarmanho Monteiro Lima
- Department of Agricultural, Livestock and Environmental Biotechnology, São Paulo State University Júlio de Mesquita Filho, Jaboticabal, São Paulo, Brazil
- Molecular Biology Laboratory, Institute for Research in Bioenergy (IPBEN), Jaboticabal, São Paulo, Brazil
- Agricultural Microbiology Graduate Program at UNESP, Jaboticabal, São Paulo, Brazil
| | - Pâmela Aparecida Maldaner Pereira
- Department of Agricultural, Livestock and Environmental Biotechnology, São Paulo State University Júlio de Mesquita Filho, Jaboticabal, São Paulo, Brazil
- Molecular Biology Laboratory, Institute for Research in Bioenergy (IPBEN), Jaboticabal, São Paulo, Brazil
| | - Elisângela Soares Gomes-Pepe
- Department of Agricultural, Livestock and Environmental Biotechnology, São Paulo State University Júlio de Mesquita Filho, Jaboticabal, São Paulo, Brazil
- Molecular Biology Laboratory, Institute for Research in Bioenergy (IPBEN), Jaboticabal, São Paulo, Brazil
| | | | - Eliana Gertrudes de Macedo Lemos
- Department of Agricultural, Livestock and Environmental Biotechnology, São Paulo State University Júlio de Mesquita Filho, Jaboticabal, São Paulo, Brazil
- Molecular Biology Laboratory, Institute for Research in Bioenergy (IPBEN), Jaboticabal, São Paulo, Brazil
- Agricultural Microbiology Graduate Program at UNESP, Jaboticabal, São Paulo, Brazil
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Dopson M, González-Rosales C, Holmes DS, Mykytczuk N. Eurypsychrophilic acidophiles: From (meta)genomes to low-temperature biotechnologies. Front Microbiol 2023; 14:1149903. [PMID: 37007468 PMCID: PMC10050440 DOI: 10.3389/fmicb.2023.1149903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/16/2023] [Indexed: 03/17/2023] Open
Abstract
Low temperature and acidic environments encompass natural milieus such as acid rock drainage in Antarctica and anthropogenic sites including drained sulfidic sediments in Scandinavia. The microorganisms inhabiting these environments include polyextremophiles that are both extreme acidophiles (defined as having an optimum growth pH < 3), and eurypsychrophiles that grow at low temperatures down to approximately 4°C but have an optimum temperature for growth above 15°C. Eurypsychrophilic acidophiles have important roles in natural biogeochemical cycling on earth and potentially on other planetary bodies and moons along with biotechnological applications in, for instance, low-temperature metal dissolution from metal sulfides. Five low-temperature acidophiles are characterized, namely, Acidithiobacillus ferriphilus, Acidithiobacillus ferrivorans, Acidithiobacillus ferrooxidans, “Ferrovum myxofaciens,” and Alicyclobacillus disulfidooxidans, and their characteristics are reviewed. Our understanding of characterized and environmental eurypsychrophilic acidophiles has been accelerated by the application of “omics” techniques that have aided in revealing adaptations to low pH and temperature that can be synergistic, while other adaptations are potentially antagonistic. The lack of known acidophiles that exclusively grow below 15°C may be due to the antagonistic nature of adaptations in this polyextremophile. In conclusion, this review summarizes the knowledge of eurypsychrophilic acidophiles and places the information in evolutionary, environmental, biotechnological, and exobiology perspectives.
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Affiliation(s)
- Mark Dopson
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
- *Correspondence: Mark Dopson
| | - Carolina González-Rosales
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden
- Center for Bioinformatics and Genome Biology, Centro Ciencia & Vida, Fundación Ciencia & Vida, Santiago, Chile
| | - David S. Holmes
- Center for Bioinformatics and Genome Biology, Centro Ciencia & Vida, Fundación Ciencia & Vida, Santiago, Chile
- Facultad de Medicina y Ciencia, Universidad San Sebastian, Santiago, Chile
| | - Nadia Mykytczuk
- Goodman School of Mines, Laurentian University, Sudbury, ON, Canada
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González-González P, Gómez-Manzo S, Tomasini A, Martínez Y Pérez JL, García Nieto E, Anaya-Hernández A, Ortiz Ortiz E, Castillo Rodríguez RA, Marcial-Quino J, Montiel-González AM. Laccase Production from Agrocybe pediades: Purification and Functional Characterization of a Consistent Laccase Isoenzyme in Liquid Culture. Microorganisms 2023; 11:microorganisms11030568. [PMID: 36985142 PMCID: PMC10053118 DOI: 10.3390/microorganisms11030568] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/30/2023] Open
Abstract
Laccases are valuable enzymes as an excellent ecological alternative for bioremediation issues because they can oxidize persistent xenobiotic compounds. The production and characterization of extracellular laccases from saprotrophic fungi from disturbed environments have been scarcely explored, even though this could diversify their functional characteristics and expand the conditions in which they carry out their catalysis. Agrocybe pediades, isolated from a disturbed forest, produces an extracellular laccase in liquid culture. The enzyme was purified, identified and characterized. Copper and hexachlorobenzene do not function as inducers for the laccase produced. Partial amino acid sequences were obtained by LC-MS/MS that share similarity with laccases from other fungi. Purified laccase is a monomer with a molecular mass between 55-60 kDa and had an optimum activity at pH 5.0 and the optimum temperature at 45 °C using 2,6-dimethoxyphenol (2,6-DMP) as substrate. The Km and Vmax also determined with 2,6-DMP were 100 μM and 285 μmol∙min-1∙mg-1, respectively, showing that the laccase of A. pediades has a higher affinity for this substrate than that of other Agaricales. These features could provide a potential catalyst for different toxic substrates and in the future laccase could be used in environmental recovery processes.
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Affiliation(s)
- Paulina González-González
- Maestría en Ciencias en Sistemas del Ambiente, Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Saúl Gómez-Manzo
- Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de Mexico 04530, Mexico
| | - Araceli Tomasini
- Departamento de Biotecnología, CBS, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de Mexico 09340, Mexico
| | - José Luis Martínez Y Pérez
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Edelmira García Nieto
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Arely Anaya-Hernández
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Elvia Ortiz Ortiz
- Facultad de Odontología, Universidad Autónoma de Tlaxcala, Tlaxcala 90000, Mexico
| | | | - Jaime Marcial-Quino
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
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Chaurasia PK, Nagraj, Sharma N, Kumari S, Yadav M, Singh S, Mani A, Yadava S, Bharati SL. Fungal assisted bio-treatment of environmental pollutants with comprehensive emphasis on noxious heavy metals: Recent updates. Biotechnol Bioeng 2023; 120:57-81. [PMID: 36253930 DOI: 10.1002/bit.28268] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 09/09/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
In the present time of speedy developments and industrialization, heavy metals are being uncovered in aquatic environment and soil via refining, electroplating, processing, mining, metallurgical activities, dyeing and other several metallic and metal based industrial and synthetic activities. Heavy metals like lead (Pb), mercury (Hg), cadmium (Cd), arsenic (As), Zinc (Zn), Cobalt (Co), Iron (Fe), and many other are considered as seriously noxious and toxic for the aquatic environment, human, and other aquatic lives and have damaging influences. Such heavy metals, which are very tough to be degraded, can be managed by reducing their potential through various processes like removal, precipitation, oxidation-reduction, bio-sorption, recovery, bioaccumulation, bio-mineralization etc. Microbes are known as talented bio-agents for the heavy metals detoxification process and fungi are one of the cherished bio-sources that show noteworthy aptitude of heavy metal sorption and metal tolerance. Thus, the main objective of the authors was to come with a comprehensive review having methodological insights on the novel and recent results in the field of mycoremediation of heavy metals. This review significantly assesses the potential talent of fungi in heavy metal detoxification and thus, in environmental restoration. Many reported works, methodologies and mechanistic sights have been evaluated to explore the fungal-assisted heavy metal remediation. Herein, a compact and effectual discussion on the recent mycoremediation studies of organic pollutants like dyes, petroleum, pesticides, insecticides, herbicides, and pharmaceutical wastes have also been presented.
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Affiliation(s)
- Pankaj Kumar Chaurasia
- P. G. Department of Chemistry, L.S. College, B. R. A. Bihar University, Muzaffarpur, Bihar, India
| | - Nagraj
- P. G. Department of Chemistry, L.S. College, B. R. A. Bihar University, Muzaffarpur, Bihar, India
| | - Nagendra Sharma
- P. G. Department of Chemistry, L.S. College, B. R. A. Bihar University, Muzaffarpur, Bihar, India
| | - Sunita Kumari
- P. G. Department of Chemistry, L.S. College, B. R. A. Bihar University, Muzaffarpur, Bihar, India
| | - Mithu Yadav
- P. G. Department of Chemistry, L.S. College, B. R. A. Bihar University, Muzaffarpur, Bihar, India
| | - Sunita Singh
- Department of Chemistry, Navyug Kanya Mahavidyalaya, University of Lucknow, Lucknow, Uttar Pradesh, India
| | - Ashutosh Mani
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh, India
| | - Sudha Yadava
- Department of Chemistry, D. D. U. Gorakhpur University, Gorakhpur, Uttar Pradesh, India
| | - Shashi Lata Bharati
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh, India
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Nano-reduction of gold and silver ions: A perspective on the fate of microbial laccases as potential biocatalysts in the synthesis of metals (gold and silver) nano-particles. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100098. [PMID: 35024642 PMCID: PMC8732750 DOI: 10.1016/j.crmicr.2021.100098] [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: 09/13/2021] [Revised: 11/21/2021] [Accepted: 12/12/2021] [Indexed: 11/22/2022] Open
Abstract
Potential involvements of microbial laccases in the synthesis of silver and gold nanoparticles have been comprehensively assessed. Treasured roles of microbes and associated enzymes in synthesis of gold and silver nanoparticles have also been presented. As potential green biocatalysts for the synthesis of metal nanoparticles, microbial laccases may be promisingly used. Methodologies as well as involved possible mechanisms have been discussed in details in order to disclose the effectiveness of microbial laccases in the synthesis of gold and silver nanoparticles. Different characterization results of synthesized gold and silver nanoparticles based on UV–Vis spectra, XRD, SEM, TEM and other techniques have also been discussed. Mechanistic evaluation also shows a hope for the effectiveness of microbial laccases in the synthesis of other metal nanoparticles.
Nanoparticles of metals have momentous place in the field of biological as well as pharmaceutical chemistry due to which in the present scenario of the research, this field is of auspicious interest. Synthesis of metal nanoparticles via microbial assistance is a burning field for their green synthesis. In this direction, microbial enzymes play significant role, out of which microbial laccases may also be a talented biocatalyst for the synthesis of metal nanoparticles considering its efficacy and interesting promising biological applications. A very little works are known on the role of microbial laccases in the synthesis of metal nanoparticles but after effective scrutiny of their reported works on the synthesis of gold and silver nanoparticles, its fate as potential biocatalyst in the synthesis of metals nanoparticles is being automatically established. Thus, this perspective commendably appraises the active applicability of microbial laccases in the synthesis of gold and silver nanoparticles by reducing their ions in suitable reaction environment.
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Radveikienė I, Vidžiūnaitė R, Meškienė R, Meškys R, Časaitė V. Characterization of a Yellow Laccase from Botrytis cinerea 241. J Fungi (Basel) 2021; 7:jof7020143. [PMID: 33671199 PMCID: PMC7922139 DOI: 10.3390/jof7020143] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/13/2021] [Accepted: 02/14/2021] [Indexed: 11/16/2022] Open
Abstract
Typical laccases have four copper atoms, which form three different copper centers, of which the T1 copper is responsible for the blue color of the enzyme and gives it a characteristic absorbance around 610 nm. Several laccases have unusual spectral properties and are referred to as yellow or white laccases. Only two yellow laccases from the Ascomycota phylum have been described previously, and only one amino acid sequence of those enzymes is available. A yellow laccase Bcl1 from Botrytis cinerea strain 241 has been identified, purified and characterized in this work. The enzyme appears to be a dimer with a molecular mass of 186 kDa. The gene encoding the Bcl1 protein has been cloned, and the sequence analysis shows that the yellow laccase Bcl1 is phylogenetically distinct from other known yellow laccases. In addition, a comparison of amino acid sequences, and 3D modeling shows that the Bcl1 laccase lacks a conservative tyrosine, which is responsible for absorption quenching at 610 nm in another yellow asco-laccase from Sclerotinia sclerotiorum. High thermostability, high salt tolerance, broad substrate specificity, and the ability to decolorize dyes without the mediators suggest that the Bcl1 laccase is a potential enzyme for various industrial applications.
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Affiliation(s)
- Ingrida Radveikienė
- Life Sciences Center, Department of Bioanalysis, Institute of Biochemistry, Vilnius University, Sauletekio Ave. 7, 10257 Vilnius, Lithuania;
- Correspondence: (I.R.); (V.Č.)
| | - Regina Vidžiūnaitė
- Life Sciences Center, Department of Bioanalysis, Institute of Biochemistry, Vilnius University, Sauletekio Ave. 7, 10257 Vilnius, Lithuania;
| | - Rita Meškienė
- Life Sciences Center, Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Vilnius University, Sauletekio Ave. 7, 10257 Vilnius, Lithuania; (R.M.); (R.M.)
| | - Rolandas Meškys
- Life Sciences Center, Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Vilnius University, Sauletekio Ave. 7, 10257 Vilnius, Lithuania; (R.M.); (R.M.)
| | - Vida Časaitė
- Life Sciences Center, Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Vilnius University, Sauletekio Ave. 7, 10257 Vilnius, Lithuania; (R.M.); (R.M.)
- Correspondence: (I.R.); (V.Č.)
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Agrawal K, Verma P. Biodegradation of synthetic dye Alizarin Cyanine Green by yellow laccase producing strain Stropharia sp. ITCC-8422. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101291] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Ike PTL, Birolli WG, Dos Santos DM, Porto ALM, Souza DHF. Biodegradation of anthracene and different PAHs by a yellow laccase from Leucoagaricus gongylophorus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8675-8684. [PMID: 30706277 DOI: 10.1007/s11356-019-04197-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
Laccases produced by Leucoagaricus gongylophorus act in lignocellulose degradation and detoxification processes. Therefore, the use of L. gongylophorus laccase (Lac1Lg) was proposed in this work for degradation of anthracene and others polycyclic aromatic hydrocarbons without the use of mediators. Degradation reactions were performed in buffer aqueous solution with 10 ppm of anthracene and other PAHs, Tween-20 in 0.25% v/v and a laccase preparation of 50 U. The optimum condition (pH 6.0 and 30 °C) was determined by response surface methodology with an excellent coefficient of determination (R2) of 0.97 and an adjusted coefficient of determination (R2adj) of 0.93. In addition, the employment of the mediator ABTS decreased the anthracene biodegradation from 44 ± 1% to 30 ± 1%. This optimum pH of 6.0 suggests that the reaction occurs by a hydrogen atom transfer mechanism. Additionally, in 24 h Lac1Lg biodegraded 72 ± 1% anthracene, 40 ± 3% fluorene and 25 ± 3% phenanthrene. The yellow laccase from L. gongylophorus biodegraded anthracene and produced anthrone and anthraquinone, which are interesting compounds for industrial applications. Moreover, this enzyme also biodegraded the PAHs phenanthrene and fluorene justifying the study of Lac1Lg for bioremediation of these compounds in the environment.
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Affiliation(s)
- Priscila Tomie Leme Ike
- Centro de Ciências Exatas e de Tecnologia, Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luis, km 235, São Carlos, SP, 13565-905, Brazil
- Instituto Federal do Paraná, Rua Antonio Carlos Rodrigues, 453, Porto Seguro, Paranaguá, PR, 87703-539, Brazil
| | - Willian Garcia Birolli
- Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, São Carlos, SP, 13563-120, Brazil
| | - Danilo Martins Dos Santos
- Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, São Carlos, SP, 13563-120, Brazil
| | - André Luiz Meleiro Porto
- Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, São Carlos, SP, 13563-120, Brazil.
| | - Dulce Helena Ferreira Souza
- Centro de Ciências Exatas e de Tecnologia, Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luis, km 235, São Carlos, SP, 13565-905, Brazil
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