Recovery of Bacillus sphaericus 2362 spores from growth medium by flocculation/sedimentation.
Bioprocess Biosyst Eng
; 25(4): 213-6, 2003 Jan.
Article
en En
| MEDLINE
| ID: mdl-14504998
ABSTRACT
Bacillus sphaericus 2362 spore sedimentation was evaluated through batch settling experiments, using tannin as the flocculating agent. The flocculation was demonstrated to be efficient up to the tannin concentration of 150 ppm. The floc diameter averaged 208 micro m, and its density was found to be 1.09 g/mL. The sedimentation process using tannin as a flocculating agent is promising, and a spore concentrate was obtained without loss of biological activity, presenting a LC(50) equal to 0.22 ppm. The result indicates that the larvicide activity is appropriate for controlling populations of Culex quinquefasciatus.
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Banco de datos:
MEDLINE
Idioma:
En
Revista:
Bioprocess Biosyst Eng
Asunto de la revista:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Año:
2003
Tipo del documento:
Article
País de afiliación:
Brasil