Mohamed A S Abdelrazek | Kafrelsheikh University (original) (raw)
Associate Professor. Ph.D.
Address: Egypt
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Papers by Mohamed A S Abdelrazek
Canadian Journal of Plant Pathology, 2022
Slovenian Veterinary Research, 2019
The presence of organophosphate pesticides and heavy metals in water are known to be toxic to aqu... more The presence of organophosphate pesticides and heavy metals in water are known to be toxic to aquatic organisms. Bioremediation makes use of naturally-occurring organisms to remove pollutants from the environment. This study explored the potential of using a consortium of microalgae and cyanobacteria ( Chlorella vulgaris , Scenedesmus quadricuda and Spirulina platensis ) to remove the organophosphate pesticide malathion and the heavy metals cadmium, nickel and lead from water samples taken from varying combinations of urban wastewater and agricultural drainage water in Egypt. The fastest algal growth observed in this study was in a treatment containing the microorganismal consortium, malathion and heavy metals cultured in water samples taken from agriculture drainage and urban wastewater. Microalgae in this study were able to remove malathion from samples of wastewater with up to 99% efficacy and were able to bioaccumulate nickel at up to 95% efficacy. Moreover, microalgae demonstra...
Spanish Journal of Agricultural Research, 2021
Aim of study: One of the safest techniques regarding the remediation of contaminated water is bio... more Aim of study: One of the safest techniques regarding the remediation of contaminated water is biological remediation. This study aimed to: (i) monitoring of a collection of organochlorine pesticides (OCPs) in three agricultural drainages (Nashart, no. 9, and El-shoka), located in Kafr El-Sheikh governorate, Egypt; and ii) investigate the biodegradation potential of different bacterial isolates regarding organochlorine pesticides.Material and methods: Analysis of OCPs was carried out by gas chromatography, Enrichment cultures were used for isolation of the bacterial strains capable of OCPs biodegradation and the most efficient isolate was identified based on morphological, biochemical ad molecular characteristics.Main results: The determination of OCPs in water samples by gas chromatography showed varying values of OCPs ranging from 0.0 mg/L (below detection limit) to 0.0385 mg/L. A total of four morphologically different bacterial isolates were obtained, which showed a remarkable ca...
Pesticide Biochemistry and Physiology, 2019
espcep.com
... Alex. J. Agric. Res., 48 (3) 187-199. Ahmed, SM and HM Gaber (2003). ... Comm. Of Sci. Explor... more ... Alex. J. Agric. Res., 48 (3) 187-199. Ahmed, SM and HM Gaber (2003). ... Comm. Of Sci. Explor. Of the Mediterranean Sea, Antalya, Turkey, 149-153. Ashry, M.; OC Bayoumi; II El-Fakharany; AS Derbalah and AA Ismail (2006). ...
Science of The Total Environment, 2019
Canadian Journal of Plant Pathology, 2022
Slovenian Veterinary Research, 2019
The presence of organophosphate pesticides and heavy metals in water are known to be toxic to aqu... more The presence of organophosphate pesticides and heavy metals in water are known to be toxic to aquatic organisms. Bioremediation makes use of naturally-occurring organisms to remove pollutants from the environment. This study explored the potential of using a consortium of microalgae and cyanobacteria ( Chlorella vulgaris , Scenedesmus quadricuda and Spirulina platensis ) to remove the organophosphate pesticide malathion and the heavy metals cadmium, nickel and lead from water samples taken from varying combinations of urban wastewater and agricultural drainage water in Egypt. The fastest algal growth observed in this study was in a treatment containing the microorganismal consortium, malathion and heavy metals cultured in water samples taken from agriculture drainage and urban wastewater. Microalgae in this study were able to remove malathion from samples of wastewater with up to 99% efficacy and were able to bioaccumulate nickel at up to 95% efficacy. Moreover, microalgae demonstra...
Spanish Journal of Agricultural Research, 2021
Aim of study: One of the safest techniques regarding the remediation of contaminated water is bio... more Aim of study: One of the safest techniques regarding the remediation of contaminated water is biological remediation. This study aimed to: (i) monitoring of a collection of organochlorine pesticides (OCPs) in three agricultural drainages (Nashart, no. 9, and El-shoka), located in Kafr El-Sheikh governorate, Egypt; and ii) investigate the biodegradation potential of different bacterial isolates regarding organochlorine pesticides.Material and methods: Analysis of OCPs was carried out by gas chromatography, Enrichment cultures were used for isolation of the bacterial strains capable of OCPs biodegradation and the most efficient isolate was identified based on morphological, biochemical ad molecular characteristics.Main results: The determination of OCPs in water samples by gas chromatography showed varying values of OCPs ranging from 0.0 mg/L (below detection limit) to 0.0385 mg/L. A total of four morphologically different bacterial isolates were obtained, which showed a remarkable ca...
Pesticide Biochemistry and Physiology, 2019
espcep.com
... Alex. J. Agric. Res., 48 (3) 187-199. Ahmed, SM and HM Gaber (2003). ... Comm. Of Sci. Explor... more ... Alex. J. Agric. Res., 48 (3) 187-199. Ahmed, SM and HM Gaber (2003). ... Comm. Of Sci. Explor. Of the Mediterranean Sea, Antalya, Turkey, 149-153. Ashry, M.; OC Bayoumi; II El-Fakharany; AS Derbalah and AA Ismail (2006). ...
Science of The Total Environment, 2019