Volume 26, Issue 2, May 2019, Pages 545–555
AMBA ESEGNI Victoria1, KOFA Guillaume Patrice2, NDI KOUNGOU Sylvere3, and Joseph Kayem4
1 Department of Process Engineering, National Advanced School of Agro Industrial Sciences, Ngaoundere, Cameroon
2 Department of Process Engineering, National Advanced School of Agro Industrial Sciences, Ngaoundere, Cameroon
3 Department of Process Engineering, National Advanced School of Agro Industrial Sciences, Ngaoundere, Cameroon
4 Département de Génie des Procédés et d'Ingénierie Ecole Nationale Supérieure des Sciences Agro-Industrielles (ENSAI) de l'Université de Ngaoundéré, Ngaoundéré, Cameroun
Original language: English
Copyright © 2019 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The aerobic dechlorination of chlordecone by bacteria from agricultural organochlorine-used soil of Cameroon South-West region is reported. Selection of microorganism strains having great affinity and/or resistant to chlordecone has been carried out. The effects of physicochemical factors (pH, chlordecone amount, incubation time and temperature) on bacteria growth and the biodegradation of chlordecone were investigated. A Bacillus strain has been isolated and was able to resist and grow with chlordecone as sole carbon source. Among physicochemical parameters studied, chlordecone amount had not significant effect on the Bacillus growth in synthetic medium. Free chlorine obtained after incubation of Bacillus sp in the presence of 1 µg/mL of chlordecone as sole carbon source showed a maximum released after 10 days, equivalent to dechlorination of 19.5% of total chlorine in the synthetic medium. This report is the first relative to chlordecone dechlorination under aerobic conditions by Bacillus strain from African ecosystems.
Author Keywords: Chlordecone, Dechlorination, Bacillus sp., African ecosystem.
AMBA ESEGNI Victoria1, KOFA Guillaume Patrice2, NDI KOUNGOU Sylvere3, and Joseph Kayem4
1 Department of Process Engineering, National Advanced School of Agro Industrial Sciences, Ngaoundere, Cameroon
2 Department of Process Engineering, National Advanced School of Agro Industrial Sciences, Ngaoundere, Cameroon
3 Department of Process Engineering, National Advanced School of Agro Industrial Sciences, Ngaoundere, Cameroon
4 Département de Génie des Procédés et d'Ingénierie Ecole Nationale Supérieure des Sciences Agro-Industrielles (ENSAI) de l'Université de Ngaoundéré, Ngaoundéré, Cameroun
Original language: English
Copyright © 2019 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The aerobic dechlorination of chlordecone by bacteria from agricultural organochlorine-used soil of Cameroon South-West region is reported. Selection of microorganism strains having great affinity and/or resistant to chlordecone has been carried out. The effects of physicochemical factors (pH, chlordecone amount, incubation time and temperature) on bacteria growth and the biodegradation of chlordecone were investigated. A Bacillus strain has been isolated and was able to resist and grow with chlordecone as sole carbon source. Among physicochemical parameters studied, chlordecone amount had not significant effect on the Bacillus growth in synthetic medium. Free chlorine obtained after incubation of Bacillus sp in the presence of 1 µg/mL of chlordecone as sole carbon source showed a maximum released after 10 days, equivalent to dechlorination of 19.5% of total chlorine in the synthetic medium. This report is the first relative to chlordecone dechlorination under aerobic conditions by Bacillus strain from African ecosystems.
Author Keywords: Chlordecone, Dechlorination, Bacillus sp., African ecosystem.
How to Cite this Article
AMBA ESEGNI Victoria, KOFA Guillaume Patrice, NDI KOUNGOU Sylvere, and Joseph Kayem, “Chlordecone dechlorination under aerobic conditions by Bacillus sp,” International Journal of Innovation and Applied Studies, vol. 26, no. 2, pp. 545–555, May 2019.
