Data/hora: 16/06/2024 08:59:53

Provedor de dados: 	5	
País: 	France	
Título: 	Effect of xanthan on the growth of sulphate-reduction bacteria in marine sediments.	
Autores: 	Battersby, N; Stewart, D; Sharma, A.	
Data: 	1984-10	
Ano: 	1984	
Palavras-chave: 	Bacteria; Growth; Additives; Pollution effects; Oil recovery; Biodegradation; Polymers; Sediment pollution; Sulfate reduction.	
Resumo: 	Chemical additives are used extensively in the offshore oil industry. For secondary oil recovery, the biopolymer xanthan has been recommended as a viscosifying agent but its use may provoke microbial problems. The effect of adding xanthan to marine sediments on the growth and metabolic activity of sulphate-reducing bacteria (SRB) was studied. In all instances, its addition resulted in an increasing in SRB numbers of up to 250-fold. This was accompanied by a marked increase in the electron transport activity of the sediments when these were incubated under either aerobic or anaerobic conditions. The products formed as a result of the biodegradation of the polymer by indigenous heterotrophic bacteria in these sediments appear to have acted as suitable substrates for SRB growth.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/1984/acte-1015.pdf	
Editor: 	Actes de colloques. Ifremer Brest [ACTES COLLOQ. IFREMER.]. 1986	
Relação: 	http://archimer.ifremer.fr/doc/00000/1015/	
Formato: 	application/pdf