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Characterization, and Application Studies on Alternaria arborescens MK629314 Laccase. Catal Letters 2022. [DOI: 10.1007/s10562-022-04120-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kinetic Study of Fungal Growth of Several Tanninolytic Strains Using Coffee Pulp Procyanidins. FERMENTATION 2021. [DOI: 10.3390/fermentation8010017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Procyanidins are bioactive molecules with industrial and pharmaceutical relevance, they are present in recalcitrant agro-industrial wastes that are difficult to degrade. In this study, we evaluated the potential consumption of procyanidins from Aspergillus niger and Trichoderma harzianum strains in submerged fermentations. For this purpose, a culture medium containing salts, glucose, and procyanidins was formulated, where procyanidins were added to the medium after the near-total consumption of glucose. The submerged cultures were carried out in amber flasks at 30 °C and 120 rpm. The addition of procyanidins to the culture medium increased the formation of micellar biomass for all the strains used. The use of glucose affected the growth of A. niger GH1 and A. niger HS1, however, in these assays, a total consumption of procyanidins was obtained. These results show that the consumption of procyanidins by fungal strains in submerged fermentations was influenced by the pH, the use of glucose as the first source of carbon, and the delayed addition of procyanidins to the medium. The study showed that A. niger and T. harzianum strains can be used as a natural strategy for the consumption or removal of procyanidins present in recalcitrant residues of risk to the environment and human health.
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Spennati F, Ricotti A, Mori G, Siracusa G, Becarelli S, Gregorio SD, Tigini V, Varese GC, Munz G. The role of cosubstrate and mixing on fungal biofilm efficiency in the removal of tannins. ENVIRONMENTAL TECHNOLOGY 2020; 41:3515-3523. [PMID: 31072243 DOI: 10.1080/09593330.2019.1615128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
Tannins are polyphenolic compounds produced by plants and they are used in industrial vegetable tanning of leather. Tannins represent one of the low biodegradability substances in tannery wastewaters with high recalcitrant soluble chemical oxygen demand, furthermore high concentration of tannins can inhibit biological treatment. In the present study, four novel rotating submerged packed bed reactors were inoculated with a selected fungal strain to reach a biological degradation of tannins in non-sterile conditions. The selected fungal strain, Aspergillus tubingensis MUT 990, was immobilised in polyurethane foam cubes carriers and inserted inside a submerged rotating cage reactors. The reactors were feed with a solution composed of four tannins: Quebracho (Schinopsis spp.), Wattle (Mimosa spp.), Chestnut (Castanea spp.) and Tara (Caesalpinia spp.). Four reactors with a volume of 4 L each were used, the co-substrate was pure malt extract, the hydraulic retention time was 24 h and the pH setpoint was 5.5. The reactors configuration was chosen to allow the study of the effect of rotation and the co-substrate addition on tannins removal. The experiment lasted two months and it was achieved 80% of chemical oxygen demand and up to 90% dissolved organic carbon removal, furthermore it was detected an important tannase activity.
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Affiliation(s)
- Francesco Spennati
- Department of Civil and Environmental Engineering, University of Florence, Firenze, Italy
| | | | | | - Giovanna Siracusa
- MUT, Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - Simone Becarelli
- MUT, Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - Simona Di Gregorio
- MUT, Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | | | | | - Giulio Munz
- Department of Civil and Environmental Engineering, University of Florence, Firenze, Italy
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Asemoloye MD, Ahmad R, Jonathan SG. Transcriptomic responses of catalase, peroxidase and laccase encoding genes and enzymatic activities of oil spill inhabiting rhizospheric fungal strains. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:55-64. [PMID: 29274538 DOI: 10.1016/j.envpol.2017.12.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 12/06/2017] [Accepted: 12/10/2017] [Indexed: 06/07/2023]
Abstract
Fungi are well associated with the degradation of hydrocarbons by the production of different enzymes, among which catalases (CBH), laccases (LCC) and peroxidases (LiP and MnP) are of immense importance. In this study, crude oil tolerance and enzyme secretions were demonstrated by rhizospheric fungal strains. Four most abundant strains were isolated from the rhizosphere of grasses growing in aged oil spill sites and identified through morphological characterization and molecular PCR-amplification of 5.8-28S ribosomal rRNA using ITS1 and ITS4 primers. These strains were subjected to crude oil tolerance test at 0-20% concentrations. Presence and transcriptase responses of putative genes lig (1-6), mnp, cbh (1.1, 1.1 and 11), and lcc encoding lignin peroxidase, manganese peroxidase, catalase, and laccase enzymes respectively were also studied in these strains using RT-PCR. In addition, activities of secreted enzymes by each strain were studied in aliquots. The strains were identified as Aspergillus niger asemoA (KY473958), Talaromyces purpurogenus asemoF (KY488463), Trichoderma harzianum asemoJ (KY488466), and Aspergillus flavus asemoM (KY488467) through sequencing and comparing the sequences' data at NCBI BLAST search software. All the isolated strains showed tolerance to crude oil at 20% concentration, but the growth rate reduced with increasing in oil concentrations. All the isolated strains possess the tested genes and lig 1-6 gene was overexpressed in A. niger and T. harzianum while lcc and mnp genes were moderately expressed in all the four strains. Almost 145 U.mL-1 of lignin and manganese peroxidase, 87 U.mL-1 of catalase, and 180 U.mL-1 of laccase enzymes were produced by these strains and it was also observed that these strain mostly produced studied enzymes in response to increasing crude oil concentrations. Considering the robust nature and diverse production of these catalytic enzymes by these strains, they can be exploited for various bioremediation technologies as well as other biotechnological applications.
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Affiliation(s)
- Michael Dare Asemoloye
- Food and Environmental Mycology/Biotechnology Unit, Department of Botany, University of Ibadan, Ibadan, Nigeria; Department of Environmental Sciences, COMSATS Institute of Information Technology, 22060 Abbottabad, Pakistan.
| | - Rafiq Ahmad
- Department of Environmental Sciences, COMSATS Institute of Information Technology, 22060 Abbottabad, Pakistan.
| | - Segun Gbolagade Jonathan
- Food and Environmental Mycology/Biotechnology Unit, Department of Botany, University of Ibadan, Ibadan, Nigeria
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Abd El-Zaher EHF, Abou-Zeid AM, Mostafa AA, Arif DM. Industrial oil wastewater treatment by free and immobilized Aspergillus niger KX759617 and the possibility of using it in crop irrigation. RENDICONTI LINCEI 2017. [DOI: 10.1007/s12210-016-0578-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Karahan Özgün Ö, Pala Özkök İ, Kutay C, Orhon D. Characteristics and biodegradability of olive mill wastewaters. ENVIRONMENTAL TECHNOLOGY 2015; 37:1240-1248. [PMID: 26507588 DOI: 10.1080/09593330.2015.1110204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Olive mill wastewaters (OMWs) are mostly characterized by their high-organic content and complex organic compounds in addition to the phenolic compounds. European olive oil manufacturers have to cope up with the same wastewater treatment problem and the applied conventional treatment technologies for OMW were not proved to be very successful in each case. Olive mills are mostly small and medium-sized installations and OMW is generated during the three-four-month-long manufacturing season. The problem is not only the complex wastewater to be treated but also the scattered positioning of the olive mills, the seasonal wastewater generation and the size of the manufacturing facilities. The aim of the study is to identify the organic content of OMW and to assess the biological and chemical treatability of OMWs, in order to assist the development of integrated chemical-biological treatment schemes for best appropriate techniques implementation. The experimental studies show that separation of the particulate fraction improved the biodegradability or reduced the refractory and inhibitory effects of particulate organics.
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Affiliation(s)
- Özlem Karahan Özgün
- a Faculty of Civil Engineering, Environmental Engineering Department , Istanbul Technical University , Istanbul , Turkey
| | - İlke Pala Özkök
- a Faculty of Civil Engineering, Environmental Engineering Department , Istanbul Technical University , Istanbul , Turkey
| | - Can Kutay
- b Arbiogaz Cevre Teknolojileri In. San. Tic. A.S ., Huzur Mah. Umar Sok. No.2 Kat:3, 4.Levent, 34418 Istanbul , Turkey
| | - Derin Orhon
- a Faculty of Civil Engineering, Environmental Engineering Department , Istanbul Technical University , Istanbul , Turkey
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Daâssi D, Lozano-Sánchez J, Borrás-Linares I, Belbahri L, Woodward S, Zouari-Mechichi H, Mechichi T, Nasri M, Segura-Carretero A. Olive oil mill wastewaters: phenolic content characterization during degradation by Coriolopsis gallica. CHEMOSPHERE 2014; 113:62-70. [PMID: 25065791 DOI: 10.1016/j.chemosphere.2014.04.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 04/14/2014] [Accepted: 04/16/2014] [Indexed: 06/03/2023]
Abstract
Olive mill wastewaters (OMW) pose a serious environmental concern owing to high polyphenol content. Decolorization and degradation of phenolic compounds (PC) by Coriolopsis gallica was demonstrated in our laboratory as a potential biotreatment of OMW in solid and liquid media. High performance liquid chromatography coupled to electrospray time-of-flight mass spectrometry was used to analyze the evolution of the main phenolic compounds during the C. gallica biodegradation process. Amongst total the compounds characterized in methanolic extracts of OMW, 12 were unknown, 15 were from different polyphenolic families, and 27 were other non-phenolic compounds. The evolution of PC content during the degradation process indicated that, despite the complexity of the OMW phenolic fraction, C. gallica was able to grow on OMW-based media using PC as sources of carbon and energy, particularly acids, alcohols, lignans and flavones. Complete dephenolization of OMW was obtained.
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Affiliation(s)
- Dalel Daâssi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Jesus Lozano-Sánchez
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Italy; Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Isabel Borrás-Linares
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Lassaad Belbahri
- Laboratory of Soil Biology, University of Neuchatel, Rue Emile Argand 11, CH-2009 Neuchatel, Switzerland
| | - Steve Woodward
- University of Aberdeen, Institute of Biological and Environmental Science, Department of Plant and Soil Science, Cruickshank Building, Aberdeen AB24 3UU, Scotland, UK
| | - Héla Zouari-Mechichi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Tahar Mechichi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia.
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
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