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Youssef M, El-Tanany SS, Moatasim Y, Moniem SMA, Hemdan BA, Ammar NS, El-Taweel GE, Ashmawy AM, Badawy MI, Lasheen MR, Ibrahim HS, Ali MEM. Assessment of toxicity and antimicrobial performance of polymeric inorganic coagulant and evaluation for eutrophication reduction. Sci Rep 2024; 14:3391. [PMID: 38336908 PMCID: PMC10858282 DOI: 10.1038/s41598-024-53714-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 02/04/2024] [Indexed: 02/12/2024] Open
Abstract
In this study, the efficacy of the promising iron-based polymeric inorganic coagulant (POFC) was assessed for the reduction of eutrophication effect (freshwater toxicity) and the microbial loads from wastewater. Toxicity assessment for POFC was conducted on mice and skin cell lines. The results confirm the lower toxicity level of POFC. The POFC showed excellent antibacterial efficacy against Gram-positive and Gram-negative bacteria. Moreover, it demonstrated a remarkable effectiveness against black fungus such as Aspergillus niger and Rhizopus oryzae. Additionally, POFC showed antiviral effectiveness against the highly pathogenic H5N1 influenza virus as well as Middle East respiratory syndrome coronavirus (MERS-CoV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). POFC-based treatment gives excellent removal percentages for phosphate, and phosphorus at doses below 60 ppm with a low produced sludge volume that leads to 84% decrease in the rate of eutrophication and freshwater toxicity. At a POFC concentration of 60 ppm, remarkable reduction rates for total coliforms, fecal coliforms, and E. coli were achieved. After POFC-based coagulation, the produced sludge retains a lower bacterial density due to the antibacterial activity of POFC. Furthermore, it revealed that the observed removal efficiencies for fungi and yeasts in the produced sludge reached 85% at a POFC dose of 60 ppm. Overall, our research indicates that POFC has potential for application in pre-treatment of wastewater and serves as an antimicrobial agent.
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Affiliation(s)
- Marwa Youssef
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Sara S El-Tanany
- Environmental and Occupational Medicine Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Yassmin Moatasim
- Centre of Excellence for Influenza Viruses, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Shimaa M Abdel Moniem
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Bahaa A Hemdan
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt.
| | - Nabila S Ammar
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Gamila E El-Taweel
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Azza M Ashmawy
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Mohamed I Badawy
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Mohamed R Lasheen
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Hanan S Ibrahim
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Mohamed Eid M Ali
- Water Pollution Research Department, Environmental and Climate Changes Institute, National Research Centre, El-Buhouth St., Dokki, P.O. 12622, Cairo, Egypt
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Abdel-Rahman T, Hussein AS, Beshir S, Hamed AR, Ali E, El-Tanany SS. Antimicrobial Activity of Terpenoids Extracted from Annona muricata Seeds and its Endophytic Aspergillus niger Strain SH3 Either Singly or in Combination. Open Access Maced J Med Sci 2019; 7:3127-3131. [PMID: 31949503 PMCID: PMC6953925 DOI: 10.3889/oamjms.2019.793] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/06/2019] [Accepted: 07/11/2019] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND: Annona muricata (Soursop) has an antimicrobial activity toward various pathogenic microorganisms which support its ethnomedicinal for the treatment of many infectious diseases. AIM: Aim of the present study to evaluate the relation between antimicrobial activities of terpenoids extracted from different soursop parts with the isolated endophytic fungi. METHODS: Endophytic fungal species of pulp and peel of Annona fruit along with those of seeds were isolated. Salkowski test was used for qualitative screening of terpenoids in plant and the isolated endophytic Aspergillus niger strain SH3. RESULTS: Endophytic A. niger strain SH3 and Annona seed extract showed high terpenoid content indicated by the high intensity of reddish-brown colour. GC/Mass analysis revealed six compounds of terpenoids from endophytic A. niger strain SH3 extract and four compounds from seed extract with different retention times. The antimicrobial assay was performed using A. niger strain SH3 extract and Annona seed extract singly or in combinations against S. aureus, P. aeruginosa, E. coli and C. albicans. CONCLUSION: The results revealed the significant antimicrobial activity of both extracts. However, the combined extract showed some reduction in antimicrobial activity which could be attributed to the antagonistic effect exhibited by their constituents.
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Affiliation(s)
- Tahany Abdel-Rahman
- Botany and Microbiology Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Amal-Saad Hussein
- Environmental and Occupational Medicine Department, National Research Centre, Cairo, Egypt
| | - Safia Beshir
- Environmental and Occupational Medicine Department, National Research Centre, Cairo, Egypt
| | - Ahmed R Hamed
- Chemistry of Medicinal Plants Department and Biology Unit, Central Laboratory for Pharmaceutical and Drug Industries Research Division, National Research Centre, Cairo, Egypt
| | - Eman Ali
- Botany and Microbiology Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Sara S El-Tanany
- Environmental and Occupational Medicine Department, National Research Centre, Cairo, Egypt
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