2005
DOI: 10.1590/s0104-66322005000400001
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Abstract: -The kinetic analysis of Bacillus thuringiensis var. israelensis (Bti) growth is often hindered by the impossibility of using conventional methods to measure biomass concentration in natural raw-material-based media, which normally have a high content of insoluble solids. In this work, application of a mathematical model based on respiratory parameters in the estimation of Bti biomass concentration was evaluated. The values obtained for the respiratory parameters true cell yield from oxygen consumption and mai… Show more

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Cited by 8 publications
(5 citation statements)
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“…High cell count and also high spore count are crucial for B. thuringiensis cultivation as it is coupled with the production of δ-endotoxin (Vu et al, 2012). High dissolved oxygen during the exponential growth phase is important for the production of B. thuringiensis spores (Silveira & Molina et al, 2005). However, a very high DOT level (100% saturation) was not preferred for B. thuringiensis cultivation (Sarrafzadeh et al, 2006), in which, saturated rich oxygen condition would affect cell growth and cease the onset of sporulation.…”
Section: Effect Of Two-phase Dot Control Strategy On Growth Sporulati...mentioning
confidence: 99%
“…High cell count and also high spore count are crucial for B. thuringiensis cultivation as it is coupled with the production of δ-endotoxin (Vu et al, 2012). High dissolved oxygen during the exponential growth phase is important for the production of B. thuringiensis spores (Silveira & Molina et al, 2005). However, a very high DOT level (100% saturation) was not preferred for B. thuringiensis cultivation (Sarrafzadeh et al, 2006), in which, saturated rich oxygen condition would affect cell growth and cease the onset of sporulation.…”
Section: Effect Of Two-phase Dot Control Strategy On Growth Sporulati...mentioning
confidence: 99%
“…Maintenance coefficient (m) and growth yield on oxygen (Y X/O ) were calculated according to Silveira and Molina [21], where specific oxygen uptake rate is plotted against specific growth rate. Intercept of this plot gives maintenance coefficient, and reciprocal of slope gives growth yield on oxygen.…”
Section: Kinetic Parameters Estimationmentioning
confidence: 99%
“…thuringiensis has the ability to form δ-endotoxins or commonly called Cry proteins which are considered as effective insecticides against different types of insects and mosquito larvae. This bacterium is of great importance, because it can biodegrade or detoxify the harmful substances therefore, it is of great value to know the cooperative behavior of B. thuringiensis strains under different environmental conditions and the presence of B. thuringiensis in different localities (Silveria et al, 2005;Cappello et al, 2006;Ohba et al, 2009). B. thuringiensis strains are ubiquitous in nature although, *Corresponding author.…”
Section: Introductionmentioning
confidence: 99%