Production of bio-inseticide Bacillus thuringiensis var. israelensis in semicontinuous processes combined with batch processes for sporulation
Braz. arch. biol. technol
;
54(1): 45-52, Jan.-Feb. 2011. ilus, graf, tab
Article
in English
| LILACS
| ID: lil-576757
ABSTRACT
The aim of this work was to study the production of the bioinsecticide using the aerobic cultivation. Two-stage cultivation process was used aerobic vegetative growth and end-phase of sporulation (with aeration and without aeration). The cuts of working volume evaluated were 20, 40, 60 and 80 percent. The highest value of spore concentration (2.17x10(9) CFU/mL) and spore productivity (7.2x10(7) CFU/mL.h) were observed using SP60. The lethal concentration (CL50) obtained through the aeration process and non-aeration process were 0.21 and 0.05 mg/L, respectively. The specific potential of the bioinsecticide produced without aeration (0.025 mg/10-12 CFU) was two times higher than that obtained with aeration (0.05 mg/10-12 CFU).
Full text:
Available
Index:
LILACS (Americas)
Language:
English
Journal:
Braz. arch. biol. technol
Journal subject:
Biology
Year:
2011
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Santa Catarina/BR
/
Universidade da Região de Joinville/BR
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