High yield of poly-c-glutamic acid from Bacillus subtilis by solid-state
Solid-state fermentations (SSF), using swine manure as the basis of a solid substrate, ... Fermentation medium and process parameters were optimized through ... Keywords: Bacillus subtilis; Poly-c-glutamic acid; Swine manure; Solid- state fermentation; Compost. 1. ..... influence on c-PGA yield as the calculated value 4.10.
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Three Distinct Phases of Isoprene Formation during Growth and
During growth on a glucose-tryptone medium, Bacillus subtilis 6051 (Marburg strain) exhibited ... Each fermentor experiment consisted of growing a bacterial ..... tion on a cell basis was calculated by dividing the isoprene concentration by the.
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xylanases from bacillus subtilis expressed in b. subtilis - Food and
nonpathogenic and nontoxigenic strains of Bacillus subtilis. ... Three transformation vectors were constructed on the basis of the commonly used plasmid ... secreted into the fermentation medium from which it is subsequently recovered, concentrated, and .... Xylanase activity is calculated in xylanase units per gram of the.
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Bacterial Growth - Elsevier Store
Jul 21, 2008 ... influx of growth medium and substrate such that the amount of available ... FIGURE 3.1 Electron micrograph of Bacillus subtilis, a gram-positive bacterium, dividing. Magnification .... used to calculate the generation time as well as the specific ..... attempts to classify bacteria in soil systems on the basis of.
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Culture of Bacillus subtilis - Plos
Nov 8, 2011 ... batch fermentor on rich medium. DNA microarrays ... Bacillus subtilis belongs to the Gram-positive Firmicutes and has ..... on an as-needed basis. Cultures ... calculated for all genes based on the expression values from all six.
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Lab-Scale Production of Bacillus atrophaeus' Spores by Solid State
Key words: Bacillus atrophaeus, spores, solid state fermentation, column bioreactor, biofilm ... Calculated inoculum volumes were mixed .... Table 3- Effects of bioreactor, substrate concentration, inoculum medium and ... all substrate moisture contents wet-basis were ..... sporulation of Bacillus subtilis on agar, attributing.
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Control of the specific growth rate of Bacillus subtilis for - HAL-Inria
Nov 1, 2012 ... antibiotic surfactant using Bacillus subtilis. The specificity ... can now be performed on the basis of the constant specific biomass growth rate. ... experiments and were calculated for different target biomass growth rates without .... The feeding medium was a double-concentrated Landy modified medium. 2.3.
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Production of lipopeptide antibiotic iturin A using soybean curd
Bacillus subtilis RB14-CS, which suppresses the growth of various plant pathogens ... of 27% protein and 53% carbohydrate on a dry weight basis (Yoshii et al. ..... medium containing glucose used in solid-state fermentation was calculated to ...
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Role of lipopeptides produced by Bacillus subtilis GA1 in the
Aim: Test of Bacillus subtilis strain GA1 for its potential to control grey mould disease of apple caused by Botrytis cinerea. .... production (named Opt medium) and described by Jacques et al. (1999). ..... calculated on the basis of their corresponding peak areas ... trial fermentation technology (Brannen and Kenney 1997).
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Enhanced biomass production study on probiotic Bacillus subtilis
Nov 22, 2010 ... Bacillus subtilis SK09 by medium optimization using response ... The culture conditions of lactose fermenting, spore forming probiotic Bacillus subtilis SK09 isolated from dairy .... independent variable and the responses were calculated using the ... On the basis of the confidence level reported in Table 3 ...
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Foam-free production of Surfactin via anaerobic fermentation of
Keywords: Surfactin; Anaerobic fermentation; Bacillus subtilis; Foam-free. Introduction ... their biodegradability and production on the basis of re- newable ...
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Effects of citrus pulp, fish by-product and Bacillus subtilis - Springer
Jul 28, 2014 ... and Bacillus subtilis fermentation biomass on the growth performance, apparent total tract digestibility (ATTD) of ... randomly allotted to three treatments on the basis of body weight (BW). .... medium consisting of 6% corn steep liquor, 4% molasses, .... G:F for each pen was calculated by dividing the ADG by.
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66-79 - BioIT international Journals
study is to develop a low-cost fermentation medium where an inexpensive sugar source like sugarcane ... Keywords: 2,3-butanediol, Bacillus subtilis, sugarcane molasses, medium optimization, industrial production. ... medium components, a mathematically calculated .... carried out by ranking them on the basis of a.
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Optimization of the Medium Components by Statistical Experimental
On the basis of our findings, a theoretical approach calculated from numerical ... Control of ammonia formation during Bacillus subtilis fermentation of legumes.
[ 1-s2.0-S1877860709600047-main.pdf?_tid=0824c6e6-20b0-11e5-ae85-00000aacb360&acdnat=1435837792_cd977129b6e8d57491458605cec81594 - Read/Download File
Bioaccumulation of Pb (II) from Aqueous solution by Bacillus cereus
The same fermentation medium containing no Pb(II) ion was used for the production of Bacillus ... strain, but results were calculated using a dry biomass basis. According to ...... droxides or silicates by Bacillus subtilis cells. Appl. Environ.
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statistical optimization of experimental variables associated with
The synthesis of α-amylase using Bacillus subtilis, NCIM 2439, was studied using ... moisture content in the solid-state fermentation medium were statistically .... w/ w on the basis of the weight of the dry banana fruit peel, inoculum size (10% - 40 %) and incubation ... The variables were coded according to the equation ...
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Plackett-Burman Design to Optimize Biosurfactant Production by
Jun 15, 2011 ... Marine Bacillus subtilis N10 strain was isolated in a previous study . ... emulsification index calculated by using the following equation . ... 2- Optimization of growth medium using Plackett Burman experimental ... various fermentation factors involved in the production of surfactant by .... On the basis of.
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Investigations on Bacillus subtilis, in Relation to a New Micro
The predominating opinion regarding the fermentation industries is that the Bacillus ... shown that an acidity of 007 per cent., calculated as acetic acid, is quite sufficient to ... and other species which havo been transplanted from a medium very ... Bacillus subtilis can survive in beer in the absence of oxygen, and remain in a ...
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Purification and Characterization of Nattokinase from Bacillus
Sep 29, 2009 ... Bacillus subtilis natto B-12 was isolated from natto, a traditional ... as a Chinese fermented soybean food (douchi) (20) and brewing ... basal medium (pH 7.0) containing 2% (w/v, the following is the ..... equation: Kav = (Ve - V0)/(Vt - V0). ... basis of the standard curve, a molecular mass of 29,000 ( 300 Da.
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The Catabolic Fate of Glucose in Bacillus subtiZis - The Journal of
pathway of glucose in Bacillus subtilis changes with the cultural conditions ..... of gluconate carbon atoms with those calculated on the basis of the following ...
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