Use of starch solution as feed for butanol bioconversion processes employing Clostridium beijerinckii BA101 may have added economic advantage over the use of glucose. Acetone butanol ethanol (ABE) was produced from 30 gL(-1) starch solution using a continuous process. The bioreactor was fed at a dilution rate of 0.02 h(-1) and starch solution/feed volume (3 L) was replaced every 72 h. The conti...

azotobacter is a gram negative, aerobe, chemo-organotroph with the, polymorphism including rod, cocci and ovoid forms. this bacterium belongs to gama-proteobacteria class, pseudomonaceae family with 7 species. it cannot produce spores but forms cyst. azotobacters’species lives in different regions from tropicals to poplars in ph 3-9. however, it can be fined mainly in alkaline and natural soils...

to evaluate the effects of plant growth promoting rhizobacteria (pgpr) such as azotobacter chroococcum, azospirillum lipoferom and brasilence and pseudomonas fluorescens and nitrogen fertilizer from urea source on yield and yield components of maize (zea mays l.) double cross hybrids (dc 370), a field experiment was carried out in a factorial experiment (5*3) in rcbd with 4 replications. bacter...

in order to study the influence of compost and biofertilizer on yield and essential oil of dill (anethum graveolens l.), an experiment was conducted as factorial experiment in the base of randomized complete blocks design with eight treatments and three replications at research field of agriculture company of ran in firouzkuh of iran in 2012. the factors were compost in four levels (0, 5, 10 an...

A field experiment was carried out in Zaid 2022 at the Department of Agronomy's Agricultural Research Farm Prayagraj (Uttar Pradesh). There are three planting geometries used 30 cm x 10 cm, 40 and 50 cm. nitrogen management treatments 50% Recommended Dose Nitrogen (RDN) through inorganic fertilizer, RDN th rough fertilizer combination with provided yard manure Azotobacter seed inoculation, fert...

The utilization of sucrose by Clostridium acetobutylicum ATCC 824 was investigated. Sucrose was found to be transported via a phosphoenolpyruvate (PEP)-dependent phosphotransferase system (PTS) and a metabolic pathway identical to that previously identified in C. beijerinckii, was established. The genes encoding the proteins of this pathway were identified from the C. acetobutylicum genome sequ...

The NCIMB 8052 strain of Clostridium beijerinckii contains nine copies of a novel insertion sequence, ISCb1, belonging to the IS4 family. The 1764 bp element has 18 bp inverted repeats at its extremities, and generates 11 bp target repeats upon insertion. It contains a 1365 bp ORF whose predicted product (455 amino acids) resembles bacterial transposases. The highly conserved DD(35)E motif is p...

Fermentation of sulfuric acid treated corn fiber hydrolysate (SACFH) inhibited cell growth and butanol production (1.7+/-0.2g/L acetone butanol ethanol or ABE) by Clostridium beijerinckii BA101. Treatment of SACFH with XAD-4 resin removed some of the inhibitors resulting in the production of 9.3+/-0.5 g/L ABE and a yield of 0.39+/-0.015. Fermentation of enzyme treated corn fiber hydrolysate (ET...