Indirect estimation of Bacillus thuringiensis var. israelensis biomass concentration using oxygen balance data
نویسندگان
چکیده
منابع مشابه
INDIRECT ESTIMATION OF Bacillus thuringiensis var. israelensis BIOMASS CONCENTRATION USING OXYGEN BALANCE DATA
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 concentrat...
متن کاملIn Silico and in Vitroinvestigations on cry4aand cry11atoxins of Bacillus thuringiensis var Israelensis
In the present study we attempted to correlate the structure and function of the cry11a (72 kDa) and cry4a (135 kDa) proteins of Bacillus thuringiensis var israelensis. Homology modeling and secondary structure predictions were done to locate most probable regions for finding helices or strands in these proteins. The JPRED (JPRED consensus secondary structure prediction server) secondary struct...
متن کاملToxicity and Affecting Factors of Bacillus thuringiensis var. Israelensis on Chironomus kiiensis Larvae
Abstract Bacillus thuringiensis var. israelensis (Bti) is a suitable agent for controlling Chironomus kiiensis, a major pest polluting water. In this study, laboratory bioassays were used to study toxicity and affecting factors of Bti on C. kiiensis larvae. Tests were conducted using three commercial Bti formulations (oil miscible suspension, 1,200 ITU/mL; wettable power, 1,200 ITU/mg; technica...
متن کاملUsing the Bio-Insecticide Bacillus thuringiensis israelensis in Mosquito Control
Mosquito control is a major public health concern, as mosquitoes transmit many severe human diseases such as malaria, filariasis, dengue, yellow fever, West Nile virus and the chikungunya virus. These diseases represent a major health threat and economic burden in disease-endemic countries, and are currently in expansion due to increased worldwide exchanges, urbanization, and global warming. Th...
متن کاملReduction of mortality rates of Bacillus thuringiensis var. israelensis aqueous suspensions due to freezing and thawing.
When studying the behavior (carry, dispersion, persistence) of Bacillus thuringiensis var. israelensis (B.t.i.) formulations used in the treatment of rivers or streams for black fly control, a large number of samples containing small quantities of B.t.i. are required for proper analysis. Freezing is a useful procedure to prevent enzymatic alteration or bacterial growth in samples before bioassa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Brazilian Journal of Chemical Engineering
سال: 2005
ISSN: 0104-6632
DOI: 10.1590/s0104-66322005000400001