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Fraga PD, de Mello Gabriel GV, do Carmo JB, Espindola ELG, Pinto TJDS. Sugarcane vinasse provokes acute and chronic responses and bioaccumulation of metals in benthic macroinvertebrates. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:4067-4079. [PMID: 38097830 DOI: 10.1007/s11356-023-31446-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/05/2023] [Indexed: 01/19/2024]
Abstract
Brazil is a major producer of sugarcane bioethanol, which has raised concerns about its environmental impact. The industrial process for obtaining ethanol generates a by-product with a high pollution potential called vinasse. If vinasse reaches watercourses, it may affect the biological communities, such as the aquatic macroinvertebrates, which include species sensitive to environmental contamination. Thus, this study evaluated the ecotoxicological effects of sugarcane vinasse on tropical benthic macroinvertebrates (Allonais inaequalis, Chironomus sancticaroli, Strandesia trispinosa, and Hyalella meinerti). The study was divided into three phases. First, acute toxicity tests were carried out with the four species. The species A. inaequalis (average LC50 = 0.460% confidence interval, CI 0.380-0.540%) was more sensitive to vinasse than C. sancticaroli (LC50 0.721%, CI 0.565-0.878%), H. meinerti (EC50 0.781%, CI 0.637-0.925%), and S. trispinosa (EC50 1.283%, CI 1.045-1.522%). In the second phase, the consequences of chronic exposure to vinasse were assessed in the two more sensitive species. Impairments in reproduction and population growth rates for A. inaequalis and on the development, metamorphosis, and body growth of C. sancticaroli larvae occurred. Finally, the bioaccumulation of metals after chronic exposure was determined in the third phase. Vinasse provoked decreases in the body residue of the essential metals Zn and Mn and the accumulation of Cd, Pb, and Cr with the potential for biomagnification throughout the food webs. Low concentrations of vinasse (below 1%) provoked lethal and sublethal effects on benthic organisms, with several cascade effects on aquatic environments, given the ecological importance of this group in freshwater and terrestrial ecosystems.
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Affiliation(s)
- Priscille Dreux Fraga
- São Carlos Engineering School (EESC), Center of Water Resources and Environmental Studies (CRHEA), Nucleus of Ecotoxicology and Applied Ecology (NEEA), University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil.
| | - Gabriele Verônica de Mello Gabriel
- Federal University of São Carlos (UFSCar), Department of Physics, Chemistry, and Mathematics, Rodovia João Leme Dos Santos, SP-264, Km 110, Sorocaba, São Paulo, 18052-780, Brazil
| | - Janaina Braga do Carmo
- Federal University of São Carlos (UFSCar), Department of Physics, Chemistry, and Mathematics, Rodovia João Leme Dos Santos, SP-264, Km 110, Sorocaba, São Paulo, 18052-780, Brazil
| | - Evaldo Luiz Gaeta Espindola
- São Carlos Engineering School (EESC), Center of Water Resources and Environmental Studies (CRHEA), Nucleus of Ecotoxicology and Applied Ecology (NEEA), University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
- Post-Graduate Program in Environmental Engineering Sciences, EESC/CRHEA, NEEA, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
| | - Thandy Junio da Silva Pinto
- São Carlos Engineering School (EESC), Center of Water Resources and Environmental Studies (CRHEA), Nucleus of Ecotoxicology and Applied Ecology (NEEA), University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, 13560-970, Brazil
- Analytical Chemistry Department, Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
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Magnoni DM, Heck MC, Gigliolli AAS, Buzo MG, Molke AS, de Syllos RS, da Motta Lima OC, Vicentini VEP. Nuclear and morpho-histopathological alterations in Astyanax altiparanae exposed to effluent from the process of anodizing aluminum. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 262:106637. [PMID: 37572499 DOI: 10.1016/j.aquatox.2023.106637] [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: 04/05/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 08/14/2023]
Abstract
Aluminum is a metal widely used from household utensils to civil construction. Anodizing aluminum is a procedure to form a thick layer of aluminum oxide on the surface in order to confer greater resistance to the material. This process generates an effluent with acidic pH and a high concentration of sulfate. Alternatives for the treatment of this effluent involve the use of the chemical precipitation technique, which can be used with salts of barium chloride (BaCl2), calcium chloride (CaCl2), and aluminum hydroxide with commercial limestone (Cc/Al (OH)3). The objective of this study was to evaluate the toxicity of effluents on Astyanax altiparanae (Lambari), by means of somatic, genetic, morphological, and histological markers after 24 and 96 h of exposure. After measuring the biometric data of the animals and the weight of the liver, we found that the condition factor (K) of individuals exposed to the effluent CaCl2 showed a slight reduction in growth after 96 h while the hepatosomatic index (HSI) remained unchanged for all effluents in both sampling times. The micronucleus test with erythrocytes indicated that the raw effluent (E2) induced nuclear changes after 24 h; however, this effect did not persist after 96 h of exposure. Branchial arches were collected and according to Bernet's index for histopathology, all effluents except Cc/Al (OH)3, induced significant changes in the gills. In accordance with the index of Poleksic and Mitrovic-Tutundzic, CaCl2 was the only effluent to compromise branchial operation. The branchial morphology investigated by SEM showed that the raw effluent (E1) induced injuries and compromised gill functions. This study reinforces the importance of biological tests for the assessment and validation of physical chemicals used and effluent treatment techniques as well as the development and application of biological parameters before the wastewater release, whether in a raw state or a treated one.
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Affiliation(s)
- Diane Marques Magnoni
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Colombo Avenue, 5.790, Jardim Universitario, Bloco H-67, Sala 11, 87020-900 Maringá, Brazil
| | - Michele Cristina Heck
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Colombo Avenue, 5.790, Jardim Universitario, Bloco H-67, Sala 11, 87020-900 Maringá, Brazil.
| | - Adriana Aparecida Sinópolis Gigliolli
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Colombo Avenue, 5.790, Jardim Universitario, Bloco H-67, Sala 11, 87020-900 Maringá, Brazil
| | - Matheus Gimenez Buzo
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Colombo Avenue, 5.790, Jardim Universitario, Bloco H-67, Sala 11, 87020-900 Maringá, Brazil
| | - Ariane Soares Molke
- Department of Chemical Engineering, State University of Maringá, Colombo Avenue, 5.790, Maringá, Brazil
| | - Renan Souza de Syllos
- Department of Chemical Engineering, State University of Maringá, Colombo Avenue, 5.790, Maringá, Brazil
| | | | - Veronica Elisa Pimenta Vicentini
- Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Colombo Avenue, 5.790, Jardim Universitario, Bloco H-67, Sala 11, 87020-900 Maringá, Brazil
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Dos Santos ÍGS, Lira AS, da Silva Montes C, Point D, Médieu A, do Nascimento CWA, Lucena-Frédou F, da Rocha RM. Revealing the environmental pollution of two estuaries through histopathological biomarkers in five fishes from different trophic guilds of northeastern Brazil. MARINE POLLUTION BULLETIN 2023; 192:115095. [PMID: 37295256 DOI: 10.1016/j.marpolbul.2023.115095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/19/2023] [Accepted: 05/21/2023] [Indexed: 06/12/2023]
Abstract
Estuaries in Brazil are mostly anthropically affected due to the discharge of industrial and domestic effluents. In two of them, the Santa Cruz Channel Estuary (ITAP) and Sirinhaém River Estuary (SIR), historically affected by mercury pollution and sugarcane industry in Northeast Brazil, we assessed environmental pollution using liver and gill histopathological biomarkers in fish from different trophic levels. Liver samples exhibited serious damages such as hepatic steatosis, necrosis, and infiltration. The gills showed moderate to severe changes, such as lifting of epithelial cells, lamellar aneurysm, and rupture of lamellar epithelium. Most of the changes in the liver and gills were reported for species Centropomus undecimalis and the Gobionellus stomatus, which were considered as good sentinels of pollution. The combination of biomarker methodologies was efficient in diagnosing the serious damage to the species, reinforcing the need for monitoring the health of the ecosystems evaluated.
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Affiliation(s)
- Ítala Gabriela Sobral Dos Santos
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, CEP: 52171-900 Recife, Pernambuco, Brazil.
| | - Alex Souza Lira
- Universidade Federal de Sergipe (UFS), Cidade Univ. Prof. José Aloísio de Campos Av. Marechal Rondon, s/n, Jd. Rosa Elze São Cristóvão/SE, CEP 49100-000, Brazil.
| | | | - David Point
- Observatoire Midi-Pyrénées, Géosciences Environnement Toulouse, UMR CNRS 5563/IRD 234/Université Paul Sabatier Toulouse 3, 14 avenue Edouard Belin, 31400 Toulouse, France.
| | - Anaïs Médieu
- Universite de Bretagne Occidentale (UBO), Institut de Recherche pour le Développement (IRD), Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer (Ifremer), LEMAR, Plouzane F-29280, France.
| | | | - Flávia Lucena-Frédou
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, CEP: 52171-900 Recife, Pernambuco, Brazil
| | - Rossineide Martins da Rocha
- Laboratory of Cellular Ultrastructure and Immunohistochemistry, Institute of Biological Sciences, Federal University of Pará (UFPA), Rua Augusto Correa n° 01, Guamá, CEP 66075-110 Belém, Pará, Brazil
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de Carvalho JC, de Souza Vandenberghe LP, Sydney EB, Karp SG, Magalhães AI, Martinez-Burgos WJ, Medeiros ABP, Thomaz-Soccol V, Vieira S, Letti LAJ, Rodrigues C, Woiciechowski AL, Soccol CR. Biomethane Production from Sugarcane Vinasse in a Circular Economy: Developments and Innovations. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9040349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Sugarcane ethanol production generates about 360 billion liters of vinasse, a liquid effluent with an average chemical oxygen demand of 46,000 mg/L. Vinasse still contains about 11% of the original energy from sugarcane juice, but this chemical energy is diluted. This residue, usually discarded or applied in fertigation, is a suitable substrate for anaerobic digestion (AD). Although the technology is not yet widespread—only 3% of bioethanol plants used it in Brazil in the past, most discontinuing the process—the research continues. With a biomethane potential ranging from 215 to 324 L of methane produced by kilogram of organic matter in vinasse, AD could improve the energy output of sugarcane biorefineries. At the same time, the residual digestate could still be used as an agricultural amendment or for microalgal production for further stream valorization. This review presents the current technology for ethanol production from sugarcane and describes the state of the art in vinasse AD, including technological trends, through a recent patent evaluation. It also appraises the integration of vinasse AD in an ideal sugarcane biorefinery approach. It finally discusses bottlenecks and presents possible directions for technology development and widespread adoption of this simple yet powerful approach for bioresource recovery.
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Affiliation(s)
- Júlio Cesar de Carvalho
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | | | - Eduardo Bittencourt Sydney
- Department of Bioprocess Engineering and Biotechnology, Federal University of Technology—Paraná, Ponta Grossa 84016-210, PR, Brazil
| | - Susan Grace Karp
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Antonio Irineudo Magalhães
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Walter José Martinez-Burgos
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Adriane Bianchi Pedroni Medeiros
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Vanete Thomaz-Soccol
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Sabrina Vieira
- Department of Bioprocess Engineering and Biotechnology, Federal University of Technology—Paraná, Ponta Grossa 84016-210, PR, Brazil
| | - Luiz Alberto Junior Letti
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Cristine Rodrigues
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Adenise Lorenci Woiciechowski
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Carlos Ricardo Soccol
- Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
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Pinto TJDS, Moreira RA, Freitas JSS, da Silva LCM, Yoshii MPC, de Palma Lopes LF, Ogura AP, de Mello Gabriel GV, Rosa LMT, Schiesari L, do Carmo JB, Montagner CC, Daam MA, Espindola ELG. Responses of Chironomus sancticaroli to the simulation of environmental contamination by sugarcane management practices: Water and sediment toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159643. [PMID: 36306835 DOI: 10.1016/j.scitotenv.2022.159643] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/08/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Sugarcane management practices include the application of pesticides, including the herbicide 2,4-D and the insecticide fipronil. In addition, a by-product from the ethanol industry, called vinasse, is commonly applied to fertilize sugarcane areas. The potential risks of these practices to the edge-of-field aquatic ecosystems were assessed in the present study. This was done by contaminating mesocosms with (single and mixtures of) both pesticides and vinasse and evaluating the effects on the midge Chironomus sancticaroli through in-situ and laboratory bioassays. To this end, outdoor mesocosms were treated with fipronil (F), 2,4-D (D), and vinasse (V) alone and with the mixture of fipronil and 2,4-D (M), as well as with both pesticides and vinasse (MV). C. sancticaroli was deployed in mesocosms before contamination in cages, which were taken out 4- and 8-days-post-contamination. Water and sediment samples were also taken for laboratory bioassays on the first day of contamination, as well as 7-, 14-, 21-, 30-, 45-, and 75-days post-contamination. The responses assessed in subchronic assays (8-day) were survival, growth, head capsule width, development, and mentum deformities. Low survival occurred in the in-situ experiments of all treatments due to the low oxygen levels. In the laboratory tests, effects on survival occurred for F, V, and M over time after exposure to both water and sediment. All organisms died post-exposure to water samples from the MV treatment, even 75-days-post-contamination. Impairments in body length and head capsule width occurred for F, V, and M for water and F, V, M, and MV for sediment samples over time. All treatments increased mentum deformities in exposed larvae for any of the sampling periods. The negative effects observed were more significant in the mixture mesocosms (M and MV), thus indicating increased risks from management practices applying these compounds together or with a short time interval in crops.
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Affiliation(s)
- Thandy Junio da Silva Pinto
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos 13560-970, Brazil.
| | - Raquel Aparecida Moreira
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos 13560-970, Brazil
| | - Juliane Silber Schmidt Freitas
- Department of Biological Sciences, Minas Gerais State University (UEMG), R. Ver. Geraldo Moisés da Silva, s/n - Universitário, 38302-192 Ituiutaba, MG, Brazil
| | - Laís Conceição Menezes da Silva
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos 13560-970, Brazil
| | - Maria Paula Cardoso Yoshii
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos 13560-970, Brazil
| | - Laís Fernanda de Palma Lopes
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos 13560-970, Brazil
| | - Allan Pretti Ogura
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos 13560-970, Brazil
| | - Gabriele Verônica de Mello Gabriel
- Federal University of São Carlos (UFSCar), Department of Physics, Chemistry and Mathematics, Rodovia João Leme dos Santos, SP-264, km 110, Sorocaba, São Paulo 18052-780, Brazil
| | - Luana Maria Tavares Rosa
- Federal University of São Carlos (UFSCar), Department of Physics, Chemistry and Mathematics, Rodovia João Leme dos Santos, SP-264, km 110, Sorocaba, São Paulo 18052-780, Brazil
| | - Luis Schiesari
- EACH, USP - School of Arts, Sciences and Humanities, University of São Paulo, Av. Arlindo Bétio 1000, São Paulo, SP 03828-000, Brazil
| | - Janaina Braga do Carmo
- Federal University of São Carlos (UFSCar), Department of Physics, Chemistry and Mathematics, Rodovia João Leme dos Santos, SP-264, km 110, Sorocaba, São Paulo 18052-780, Brazil
| | - Cassiana Carolina Montagner
- Analytical Chemistry Department, Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Michiel Adriaan Daam
- CENSE, Department of Environmental Sciences and Engineering, Faculty of Sciences and Technology, New University of Lisbon, Quinta da Torre, 2829-516 Caparica, Portugal
| | - Evaldo Luiz Gaeta Espindola
- PPG-SEA and NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos 13560-970, Brazil
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Ratna S, Rastogi S, Kumar R. Current trends for distillery wastewater management and its emerging applications for sustainable environment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112544. [PMID: 33862317 DOI: 10.1016/j.jenvman.2021.112544] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 03/16/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
Ethanol distillation generates a huge volume of unwanted chemical liquid known as distillery wastewater. Distillery wastewater is acidic, dark brown having high biological oxygen demand, chemical oxygen demand, contains various salt contents, and heavy metals. Inadequate and indiscriminate disposal of distillery wastewater deteriorates the quality of the soil, water, and ultimately groundwater. Its direct exposure via food web shows toxic, carcinogenic, and mutagenic effects on aquatic-terrestrial organisms including humans. So, there is an urgent need for its proper management. For this purpose, a group of researchers applied distillery wastewater for fertigation while others focused on its physico-chemical, biological treatment approaches. But until now no cutting-edge technology has been proposed for its effective management. So, it becomes imperative to comprehend its toxicity, treatment methods, and implication for environmental sustainability. This paper reviews the last decade's research data on advanced physico-chemical, biological, and combined (physico-chemical and biological) methods to treat distillery wastewater and its reuse aspects. Finally, it revealed that the combined methods along with the production of value-added products are one of the best options for distillery wastewater management.
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Affiliation(s)
- Sheel Ratna
- Rhizosphere Biology Laboratory, Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, (A Central University), Vidya Vihar, Raibareli Road, Lucknow, 226025, India.
| | - Swati Rastogi
- Rhizosphere Biology Laboratory, Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, (A Central University), Vidya Vihar, Raibareli Road, Lucknow, 226025, India
| | - Rajesh Kumar
- Rhizosphere Biology Laboratory, Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University, (A Central University), Vidya Vihar, Raibareli Road, Lucknow, 226025, India
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Sumon KA, Yesmin MF, Van den Brink PJ, Bosma RH, Peeters ETHM, Rashid H. Effects of long-term chlorpyrifos exposure on mortality and reproductive tissues of Banded Gourami ( Trichogaster fasciata). JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:549-559. [PMID: 31094287 DOI: 10.1080/03601234.2019.1614399] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study assessed the long-term toxicity of chlorpyrifos on survival and reproduction of Banded Gourami by using mortality, gonado-somatic index (GSI) and histopathological observations as endpoints. Adult fish were exposed to five different concentrations of chlorpyrifos (0, 15, 50, 150, 500 µg/L) in 15 PVC tanks for 15, 30, 45, 60 and 75 days. Results showed that all male and female fish died after 15 days of 500 µg/L chlorpyrifos exposure. No consistent significant effect was observed for both male and female GSI. Furthermore, results showed dose- and time-dependent histopathological alterations for both ovary and testes. The 60-d No Observed Effect Concentration (NOEC) for most histopathological alterations of Banded Gourami ovary and testes was 50 μg/L, while 60-d NOEC for mortality of both male and female fish was < 15 μg/L. The results show that the long-term exposure to chlorpyrifos not only affect the reproductive tissues of Banded Gourami at exposure concentrations but also cause their mortality. Future studies should evaluate effects at lower concentrations.
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Affiliation(s)
- Kizar Ahmed Sumon
- a Aquatic Ecology and Water Quality Management Group , Wageningen University , Wageningen , The Netherlands
- b Department of Fisheries Management , Bangladesh Agricultural University , Mymensingh , Bangladesh
| | - Most Farzana Yesmin
- b Department of Fisheries Management , Bangladesh Agricultural University , Mymensingh , Bangladesh
| | - Paul J Van den Brink
- a Aquatic Ecology and Water Quality Management Group , Wageningen University , Wageningen , The Netherlands
- c Wageningen Environmental Research (Alterra) , Wageningen , The Netherlands
| | - Roel H Bosma
- d Aquaculture and Fisheries Group , Wageningen University , Wageningen , The Netherlands
| | - Edwin T H M Peeters
- a Aquatic Ecology and Water Quality Management Group , Wageningen University , Wageningen , The Netherlands
| | - Harunur Rashid
- b Department of Fisheries Management , Bangladesh Agricultural University , Mymensingh , Bangladesh
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Pirsaheb M, Azadi NA, Miglietta ML, Sayadi MH, Blahova J, Fathi M, Mansouri B. Toxicological effects of transition metal-doped titanium dioxide nanoparticles on goldfish (Carassius auratus) and common carp (Cyprinus carpio). CHEMOSPHERE 2019; 215:904-915. [PMID: 30408886 DOI: 10.1016/j.chemosphere.2018.10.111] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 06/08/2023]
Abstract
The aim of present study was to assess the toxicological effects of transition metal-doped titanium dioxide nanoparticles (TiO2 NPs) on histopathological changes, behavioral patterns, and antioxidant responses of goldfish (Carassius auratus) and common carp (Cyprinus carpio). The synthesized nanoparticles were confirmed by Transmission Electron Microscopy, Field Emission Scanning Electron Microscopy, X-ray diffraction, UV-visible, and Vibration Sample Magnetometer. Fish in four experimental groups exposed to sub-lethal concentrations of pure TiO2 NPs (10 mg L-1), chromium (Cr), iron (Fe), and nickel (Ni) doped TiO2 NPs for seven days. Statistical analysis of oxidative stress responses in gills showed significant differences in superoxide dismutase, total antioxidant capacity, and malondialdehyde parameters between two species and in all parameters than glutathione peroxidase between experimental groups and control group. In intestine, no significant difference was observed among groups, but oxidative responses were markedly different in all parameters among fish species. The histopathological analysis showed hyperplasia, fusion, and aneurism in the gills as well as degeneration, integration of villi, necrosis and erosion of the intestine. Our findings indicated that compare to pure TiO2 NPs, exposure to transition metals-doped TiO2 NPs induced oxidative stress and histopathological changes in both fish species.
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Affiliation(s)
- Maghdad Pirsaheb
- -Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Nammam Ali Azadi
- Biostatistics Department, Faculty of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | | | - Mohammad Hossein Sayadi
- Department of Environmental Sciences, School of Natural Resources and Environment, University of Birjand, Birjand, Iran.
| | - Jana Blahova
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho tr. 1946/1, 612 42, Brno, Czech Republic.
| | - Mokhtar Fathi
- Animal Sciences Department, Payam Noor University, Sanandaj, Iran.
| | - Borhan Mansouri
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran.
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Roscini L, Favaro L, Corte L, Cagnin L, Colabella C, Basaglia M, Cardinali G, Casella S. A yeast metabolome-based model for an ecotoxicological approach in the management of lignocellulosic ethanol stillage. ROYAL SOCIETY OPEN SCIENCE 2019; 6:180718. [PMID: 30800340 PMCID: PMC6366221 DOI: 10.1098/rsos.180718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 11/30/2018] [Indexed: 05/07/2023]
Abstract
Lignocellulosic bioethanol production results in huge amounts of stillage, a potentially polluting by-product. Stillage, rich in heavy metals and, mainly, inhibitors, requires specific toxicity studies to be adequately managed. To this purpose, we applied an FTIR ecotoxicological bioassay to evaluate the toxicity of lignocellulosic stillage. Two weak acids and furans, most frequently found in lignocellulosic stillage, have been tested in different mixtures against three Saccharomyces cerevisiae strains. The metabolomic reaction of the test microbes and the mortality induced at various levels of inhibitor concentration showed that the strains are representative of three different types of response. Furthermore, the relationship between concentrations and FTIR synthetic stress indexes has been studied, with the aim of defining a model able to predict the concentrations of inhibitors in stillage, resulting in an optimized predictive model for all the strains. This approach represents a promising tool to support the ecotoxicological management of lignocellulosic stillage.
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Affiliation(s)
- Luca Roscini
- Department of Pharmaceutical Sciences-Microbiology, CEMIN, Centre of Excellence on Nanostructured Innovative Materials, University of Perugia, Perugia, Italy
| | - Lorenzo Favaro
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE), University of Padova, Legnaro, Italy
- Author for correspondence: Lorenzo Favaro e-mail:
| | - Laura Corte
- Department of Pharmaceutical Sciences-Microbiology, CEMIN, Centre of Excellence on Nanostructured Innovative Materials, University of Perugia, Perugia, Italy
| | - Lorenzo Cagnin
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE), University of Padova, Legnaro, Italy
| | - Claudia Colabella
- Department of Pharmaceutical Sciences-Microbiology, CEMIN, Centre of Excellence on Nanostructured Innovative Materials, University of Perugia, Perugia, Italy
| | - Marina Basaglia
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE), University of Padova, Legnaro, Italy
| | - Gianluigi Cardinali
- Department of Pharmaceutical Sciences-Microbiology, CEMIN, Centre of Excellence on Nanostructured Innovative Materials, University of Perugia, Perugia, Italy
- Department of Chemistry, Biology and Biotechnology, CEMIN, Centre of Excellence on Nanostructured Innovative Materials, University of Perugia, Perugia, Italy
| | - Sergio Casella
- Department of Agronomy Food Natural resources Animals and Environment (DAFNAE), University of Padova, Legnaro, Italy
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10
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Muliari, Akmal Y, Zulfahmi I, Juanda R, Karja NWK, Nisa C. Histopathological changes in gill of Nile tilapia (Oreochromis niloticus) after palm oil mill effluent exposure. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1755-1315/216/1/012003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Coelho MPM, Correia JE, Vasques LI, Marcato ACDC, Guedes TDA, Soto MA, Basso JB, Kiang C, Fontanetti CS. Toxicity evaluation of leached of sugarcane vinasse: Histopathology and immunostaining of cellular stress protein. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 165:367-375. [PMID: 30216895 DOI: 10.1016/j.ecoenv.2018.08.099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 08/21/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
Sugarcane vinasse is a residue generated at a rate fifteen times greater than the ethanol production. Because of its high organic and micronutrient content, this residue is used as a fertilizer on sugarcane crops. However, when used in large quantities, vinasse can saturate the soil and contaminate nearby water resources by percolation and leaching. Given the proven toxic potential of in natura vinasse, the present study aimed to evaluate the toxic potential of leached sugarcane vinasse using Nile tilapia (Oreochromis niloticus) as a test organism. A bioassay was performed after vinasse percolation in laboratory soil columns. The bioassay included one control group containing fresh water and two treatment groups, the first exposed to a 2,5% dilution of leached of vinasse and the second to a 2,5% dilution of in natura vinasse. After exposure, histopathological analysis was performed in gills and livers, and the latter were labelled for HSP70 proteins. No significant changes were detected in the gills of the exposed fish. However, in the liver, both in natura and leached vinasse induced statistically significant histopathological changes. These changes include hydropic degeneration, cell boundary losses, pyknotic nuclei and cellular disorganization. HSP70 expression significant increase in liver of both treatment groups were observed, being higher for the in natura vinasse exposed group. Results suggested that both leached vinasse and in natura vinasse were toxic, its still able to provoke histological changes and induce the cytoprotective response in exposed fish liver, evidenced by a immunostaining of cellular stress proteins. Thus, in order to reduce its environmental impact, appropriated effluent disposal is essential.
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Affiliation(s)
- Maria Paula Mancini Coelho
- UNESP - São Paulo State University, IB (Instituto de Biociências), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Jorge Evangelista Correia
- UNESP - São Paulo State University, IB (Instituto de Biociências), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Louise Idalgo Vasques
- UNESP - São Paulo State University, IB (Instituto de Biociências), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Ana Claudia de Castro Marcato
- UNESP - São Paulo State University, IB (Instituto de Biociências), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Thays de Andrade Guedes
- UNESP - São Paulo State University, IB (Instituto de Biociências), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Miguel Alfaro Soto
- São Paulo State University (Unesp), IGCE (Instituto de Geociências e Ciências Exatas), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Juliana Broggio Basso
- São Paulo State University (Unesp), IGCE (Instituto de Geociências e Ciências Exatas), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Chang Kiang
- São Paulo State University (Unesp), IGCE (Instituto de Geociências e Ciências Exatas), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil
| | - Carmem Silvia Fontanetti
- UNESP - São Paulo State University, IB (Instituto de Biociências), Av. 24-A, 1515, CEP: 13506-900 Rio Claro, São Paulo, Brazil.
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12
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Chingono KE, Sanganyado E, Bere E, Yalala B. Adsorption of sugarcane vinasse effluent on bagasse fly ash: A parametric and kinetic study. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 224:182-190. [PMID: 30048849 DOI: 10.1016/j.jenvman.2018.07.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 07/09/2018] [Accepted: 07/14/2018] [Indexed: 06/08/2023]
Abstract
Sugarcane and bioethanol production produces large amounts of bagasse fly ash and vinasse, which are solid and viscous liquid wastes, respectively. However, these wastes are often disposed into the environment without treatment, thus posing an environmental and public health risk. This study investigated the treatment of vinasse effluent in terms of reduction of chemical oxygen demand (COD) and acidity removal using sugarcane bagasse fly ash. A maximum COD removal efficiency of 72% was obtained using an effluent volume of 100 mL, contact time of 180 min, and shaking speed of 240 rpm. The adsorbent dose and particle sizes were 4.5 g and 90-125 μm, respectively. Furthermore, the potential application of bagasse fly ash as an adsorbent in a sand filtration bed was assessed using a column test. A maximum recovery of 68% was obtained at the 25-min interval. The adsorption data was found to fit the Freundlich model best (Kf = 2.16 mg g-1; R2 = 0.96), and the kinetics fit the pseudo-second order model (R2 = 0.98).
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Affiliation(s)
| | - Edmond Sanganyado
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, 515063, China; Applied Chemistry, National University of Science and Technology, Bulawayo, Zimbabwe.
| | - Emily Bere
- Applied Chemistry, National University of Science and Technology, Bulawayo, Zimbabwe
| | - Bongani Yalala
- Applied Chemistry, National University of Science and Technology, Bulawayo, Zimbabwe.
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Coelho MPM, Moreira-de-Sousa C, de Souza RB, Ansoar-Rodríguez Y, Silva-Zacarin ECM, Fontanetti CS. Toxicity evaluation of vinasse and biosolid samples in diplopod midgut: heat shock protein in situ localization. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:22007-22017. [PMID: 28785943 DOI: 10.1007/s11356-017-9754-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
Large amounts of residues generated by agricultural, urban and industrial activities are dumped daily on the soil. This practice deserves special attention because it causes serious environmental problems. This study evaluated the toxic potential of the sugarcane vinasse, a by-product of the sugar-alcohol industry, and the biosolid, a residue produced by wastewater treatment plants, both widely used as fertilizers. The evaluation was performed through bioassays using a typical soil bioindicator, the diplopod Rhinocricus padbergi. The specimens were exposed to soils containing these residues in concentrations that are compatible with the Brazilian regulation for agricultural use. Semi-quantitative immunolabelling analyses of the stress protein HSP70 were performed on the midgut of the studied diplopods. There was a significant increase in the immunolabelling of HSP70 proteins as a response to xenobiotics from both residues, particularly in regions where the function of the cells is the detoxification of the organ (e.g. the hepatic cell layer and specific regions of the epithelium). Higher immunolabelling was observed in the specimens exposed to vinasse in comparison with the biosolid exposure. This demonstrates that the substances in the tested residues had proteotoxic action in the exposed animals and induced a cytoprotective response, which led to higher stress protein immunolabelling. Therefore, caution is needed for the use of such residues in agriculture.
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Affiliation(s)
- Maria Paula Mancini Coelho
- Department of Biology, Biosciences Institute, UNESP (São Paulo State University), Av. 24-A, 1515, Rio Claro, São Paulo, 13506-900, Brazil
| | - Cristina Moreira-de-Sousa
- Department of Biology, Biosciences Institute, UNESP (São Paulo State University), Av. 24-A, 1515, Rio Claro, São Paulo, 13506-900, Brazil
| | - Raphael Bastão de Souza
- Department of Biology, Biosciences Institute, UNESP (São Paulo State University), Av. 24-A, 1515, Rio Claro, São Paulo, 13506-900, Brazil
| | - Yadira Ansoar-Rodríguez
- Department of Biology, Biosciences Institute, UNESP (São Paulo State University), Av. 24-A, 1515, Rio Claro, São Paulo, 13506-900, Brazil
| | | | - Carmem Silvia Fontanetti
- Department of Biology, Biosciences Institute, UNESP (São Paulo State University), Av. 24-A, 1515, Rio Claro, São Paulo, 13506-900, Brazil.
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14
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Sales CF, Santos KPED, Rizzo E, Ribeiro RIMDA, Santos HBD, Thomé RG. Proliferation, survival and cell death in fish gills remodeling: From injury to recovery. FISH & SHELLFISH IMMUNOLOGY 2017; 68:10-18. [PMID: 28676337 DOI: 10.1016/j.fsi.2017.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/30/2017] [Accepted: 07/01/2017] [Indexed: 06/07/2023]
Abstract
Pollutants found dispersed in water can cause irritations on the gills, challenge the immune system and prejudice the welfare of the fish. Here we investigated molecules linked to proliferation, survival, and cell death, as well as inflammatory and vascular control, in a model of fish gill remodeling, from injury to recovery. We assessed the gill histology and immunohistochemistry for PCNA, iNOS, HSP70, and Bax in Hypostomus francisci obtained from a river subjected to chronic anthropic influences and then after they were placed in water of good quality. A total of 30 H. francisci adult individuals were collected and distributed into two groups: euthanized on the day of capture (group 1) and maintained for 30 days in an aquarium (group 2). In all the fish from group 1, the primary and secondary lamellae showed hypertrophy of the respiratory epithelium, lamellar fusion, lifting of the epithelium, aneurysm, hyperemia, and vascular congestion. On the other hand, in all the fish from group 2, restoration of gill integrity was observed, and the primary and secondary lamellae showed a simple epithelium, absence of lamellar fusion, hypertrophy, and aneurysm. Gills of fish from group 1 had higher frequency of cells immunopositive for PCNA, iNOS, HSP70, and Bax than those of fish from group 2 (p < 0.05). The molecular and cellular mechanisms from injury to recovery were proposed, with a balance between survival and cell death signals being essential for determining the gill structure. In addition, the findings indicate that recovery of the structural organization of gills is possible if fishes are maintained in good-quality water, indicating the importance of the conservation of aquatic environments.
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Affiliation(s)
- Camila Ferreira Sales
- Universidade Federal de São João Del Rei, Campus Centro Oeste, Laboratório de Processamento de Tecidos - LAPROTEC, Rua Sebastião Gonçalves Coelho, 400, 35501-296, Divinópolis, Minas Gerais, Brazil; Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Ictiohistologia, Avenida Presidente Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Keiza Priscila Enes Dos Santos
- Universidade Federal de São João Del Rei, Campus Centro Oeste, Laboratório de Processamento de Tecidos - LAPROTEC, Rua Sebastião Gonçalves Coelho, 400, 35501-296, Divinópolis, Minas Gerais, Brazil
| | - Elizete Rizzo
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Morfologia, Laboratório de Ictiohistologia, Avenida Presidente Antônio Carlos, 6627, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Rosy Iara Maciel de Azambuja Ribeiro
- Universidade Federal de São João Del Rei, Campus Centro Oeste, Laboratório de Patologia Experimental - LAPATEX, Rua Sebastião Gonçalves Coelho, 400, 35501-296, Divinópolis, Minas Gerais, Brazil
| | - Hélio Batista Dos Santos
- Universidade Federal de São João Del Rei, Campus Centro Oeste, Laboratório de Processamento de Tecidos - LAPROTEC, Rua Sebastião Gonçalves Coelho, 400, 35501-296, Divinópolis, Minas Gerais, Brazil
| | - Ralph Gruppi Thomé
- Universidade Federal de São João Del Rei, Campus Centro Oeste, Laboratório de Processamento de Tecidos - LAPROTEC, Rua Sebastião Gonçalves Coelho, 400, 35501-296, Divinópolis, Minas Gerais, Brazil.
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15
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Garcia CFH, Souza RBD, de Souza CP, Christofoletti CA, Fontanetti CS. Toxicity of two effluents from agricultural activity: Comparing the genotoxicity of sugar cane and orange vinasse. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:216-221. [PMID: 28412625 DOI: 10.1016/j.ecoenv.2017.03.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/28/2017] [Accepted: 03/31/2017] [Indexed: 05/23/2023]
Abstract
Vinasse, produced by several countries as a by-product of agricultural activity, has different alternatives for its reuse, mainly fertirrigation. Several monocultures, such as sugar cane and orange crops, produce this effluent. Sugar cane vinasse is already widely used in fertirrigation and orange vinasse has potential for this intention. However, its use as a fertilizer has caused great concern. Thus, ecotoxicological evaluation is extremely important in order to assess the possible effects on the environment. Therefore, the aim of this study was to evaluate the potential toxicity of vinasse of two different crops: sugar cane and orange. For this purpose, bioassays with Allium cepa as a test organism were performed with two vinasse dilutions (2.5% and 5%) to detect chromosomal aberrations and micronucleus induction. The results showed that both types of vinasse are able to induce chromosomal aberrations in meristematic cells, mainly nuclear and anaphasic bridges, suggesting genotoxic potential. The induction of micronuclei in cells of the F1 region suggests that the two residues have mutagenic potential. Thus, caution is advised when applying these effluents in the environment.
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Affiliation(s)
- Camila Fernandes H Garcia
- Universidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claro - Avenida 24A, 1515, Bela Vista, 13506-900 Rio Claro, Brazil
| | - Raphael B de Souza
- Universidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claro - Avenida 24A, 1515, Bela Vista, 13506-900 Rio Claro, Brazil
| | - Cleiton Pereira de Souza
- Universidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claro - Avenida 24A, 1515, Bela Vista, 13506-900 Rio Claro, Brazil
| | - Cintya Ap Christofoletti
- UNIARARAS - Centro Universitário Hermínio Ometto, Araras - Avenida Dr. Maximiliano Baruto, 500, Jardim Universitario, 13607-339 Araras, Brazil
| | - Carmem S Fontanetti
- Universidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claro - Avenida 24A, 1515, Bela Vista, 13506-900 Rio Claro, Brazil.
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16
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Correia JE, Christofoletti CA, Ansoar-Rodríguez Y, Guedes TA, Fontanetti CS. Comet assay and micronucleus tests on Oreochromis niloticus (Perciforme: Cichlidae) exposed to raw sugarcane vinasse and to phisicochemical treated vinasse by pH adjustment with lime (CaO). CHEMOSPHERE 2017; 173:494-501. [PMID: 28131919 DOI: 10.1016/j.chemosphere.2017.01.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 11/23/2016] [Accepted: 01/04/2017] [Indexed: 05/23/2023]
Abstract
In Brazil vinasse, a main sugarcane distillery residue, stands out because every liter of alcohol generates 10-15 L of vinasse as waste. An alternative for the disposal of this waste is the fertirrigation of the sugarcane culture itself. However, the high amount released can saturate the soil and through leaching/percolation contaminate water resources. The aim of this study is verifying the toxic potential of vinasse in tilapias and effectiveness of the physicalchemical treatment of this waste with pH adjustment with lime (CaO). The comet assay and the micronucleus test were applied on animals exposed to dilutions of raw vinasse and vinasse adjusted to neutral pH. Bioassays with raw vinasse dilutions indicated a toxic and genotoxic potential; fish exposed to the highest concentration died less than 48 h after the exposure; the incidence of micronucleus was significantly higher when compared to negative control for all dilutions. For the comet assay, the scores of damage were statistically higher for all dilutions, with the exception of the 1% dillution. However, in the bioassay with the chemically treated vinasse (neutral pH), most fish in the 10% dilution survived and there was no significant difference when compared to the control. Damage scores in the comet assay were similar to the results of the untreated vinasse. The chemical treatment of vinasse with lime to neutralize the pH proved to be an effective alternative for the toxicity reduction of this residue, since it reduced the mortality of fish at higher concentrations and the incidence of damage to DNA.
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Affiliation(s)
- Jorge E Correia
- UNESP (Universidade Estadual Paulista)-Rio Claro, 13506-900, Rio Claro, SP, Brazil
| | - Cintya Ap Christofoletti
- Hermínio Ometto Fundation, UNIARARAS, Dr. João Maximilian Baruto Avenue, 500. Jd. Universitário, Araras, SP, Brazil
| | | | - Thays A Guedes
- UNESP (Universidade Estadual Paulista)-Rio Claro, 13506-900, Rio Claro, SP, Brazil
| | - Carmem S Fontanetti
- UNESP (Universidade Estadual Paulista)-Rio Claro, 13506-900, Rio Claro, SP, Brazil.
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