Microbiological, Biochemical and Physicochemical Characterization of Water Quality and Islands (Domoro and Maguite) in Lake Fitri, Chad  

作　　者：Djibrine Adoum Oumar Hama Cissé Atteib Adam Baye Adama Sawadogo Jacques Etame Abdelsalam Tidjani Savadogo Aly Djibrine Adoum Oumar;Hama Cissé;Atteib Adam Baye;Adama Sawadogo;Jacques Etame;Abdelsalam Tidjani;Savadogo Aly(Laboratory of Research on Natural Substances, Faculty of Exact and Applied Sciences (F.E.A.S.), University of NDjamena, NDjamena, Chad;Laboratory of Biochemistry and Immunology Applied, Joseph KI-ZERBO University, Ouagadougou, Burkina Faso;Food Science and Nutrition Research Laboratory (FSNRL), Faculty of Human Health Sciences (FHHS), University of NDjamena, NDjamena, Chad;Geosciences, Natural Resources and Environment Laboratory, University of Douala, Douala, Cameroon)

机构地区：[1]Laboratory of Research on Natural Substances, Faculty of Exact and Applied Sciences (F.E.A.S.), University of NDjamena, NDjamena, Chad [2]Laboratory of Biochemistry and Immunology Applied, Joseph KI-ZERBO University, Ouagadougou, Burkina Faso [3]Food Science and Nutrition Research Laboratory (FSNRL), Faculty of Human Health Sciences (FHHS), University of NDjamena, NDjamena, Chad [4]Geosciences, Natural Resources and Environment Laboratory, University of Douala, Douala, Cameroon

出　　处：《Open Journal of Applied Sciences》2025年第2期530-555,共26页应用科学(英文)

摘　　要：A total of fifty (50) samples of water from Lake Fitri (Chad), with 25 samples per island (Domoro and Maguite). The aim of this study was to analyze the bacteriological, biochemical and physico-chemical quality of the water in Lake Fitri in Chad. Standard microbiology methods were used. Isolated strains of enterobacteria were characterized by API 20E and API Staph galleries and confirmed by API Web. Antibiotic resistance was performed according to the recommendations of the antibiogram committee (CA-SFM, 2019). Physico-chemical analysis of the water was carried out by (Rodier, 2009). The microbiological results revealed an abundance on the Domoro islands (5.37.106 ± 1.5.105 and 1.97.105 ± 4.94.104), successively for total aerobic mesophilic flora (FMAT), and thermotolerant coliform (E. coli) and on the Maguite Islands (4.71.106 ± 7.14.105 and 2.32.105 ± 2.86.104), alternately for total aerobic mesophilic flora (FMAT), and thermotolerant coliform (E. coli). The results obtained after incubation of the biochemical tests using the API 20E and API Staph galleries and their proposed numerical profile analyzed using Api software and confirmed by Api Web confirmed the contamination of the waters of Lake Fitri by pathogenic strains of E. coli, Staphylococcus and Salmonella spp. The results of the antibiogram carried out show the emergence of certain resistances to Tobramycin, Flucytosine and Teicoplanin. The average levels of BOD5, COD, SS, Nitrate (NO3) and Nitrite (NO2) for Domoro Island were 32.14 ± 2.37 mg/L, 423.86 ± 4.78 mg/L, 65.42 ± 2.27 mg/L, 0.04 ± 0.01 mg/L and 3.32 ± 1.48 mg/L respectively. The water from the islands of Lake Fitri must therefore be rigorously treated before consumption.A total of fifty (50) samples of water from Lake Fitri (Chad), with 25 samples per island (Domoro and Maguite). The aim of this study was to analyze the bacteriological, biochemical and physico-chemical quality of the water in Lake Fitri in Chad. Standard microbiology methods were used. Isolated strains of enterobacteria were characterized by API 20E and API Staph galleries and confirmed by API Web. Antibiotic resistance was performed according to the recommendations of the antibiogram committee (CA-SFM, 2019). Physico-chemical analysis of the water was carried out by (Rodier, 2009). The microbiological results revealed an abundance on the Domoro islands (5.37.106 ± 1.5.105 and 1.97.105 ± 4.94.104), successively for total aerobic mesophilic flora (FMAT), and thermotolerant coliform (E. coli) and on the Maguite Islands (4.71.106 ± 7.14.105 and 2.32.105 ± 2.86.104), alternately for total aerobic mesophilic flora (FMAT), and thermotolerant coliform (E. coli). The results obtained after incubation of the biochemical tests using the API 20E and API Staph galleries and their proposed numerical profile analyzed using Api software and confirmed by Api Web confirmed the contamination of the waters of Lake Fitri by pathogenic strains of E. coli, Staphylococcus and Salmonella spp. The results of the antibiogram carried out show the emergence of certain resistances to Tobramycin, Flucytosine and Teicoplanin. The average levels of BOD5, COD, SS, Nitrate (NO3) and Nitrite (NO2) for Domoro Island were 32.14 ± 2.37 mg/L, 423.86 ± 4.78 mg/L, 65.42 ± 2.27 mg/L, 0.04 ± 0.01 mg/L and 3.32 ± 1.48 mg/L respectively. The water from the islands of Lake Fitri must therefore be rigorously treated before consumption.

关 键 词：CHAD Lake Fitri PHYSICOCHEMICAL Microbiological and Biochemical 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]