scholarly journals A study of densified biochar as carbon source in the silicon and ferrosilicon production

Energy ◽  
2019 ◽  
Vol 181 ◽  
pp. 985-996 ◽  
Author(s):  
Lorenzo Riva ◽  
Gerrit Ralf Surup ◽  
Therese Videm Buø ◽  
Henrik Kofoed Nielsen
Author(s):  
B. L. Soloff ◽  
T. A. Rado

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.


2018 ◽  
Author(s):  
Zhanyu Li ◽  
Mengru Zhang ◽  
Yu Zhang ◽  
Shuang Liu ◽  
Jinbo Zhao ◽  
...  

Deployment of organoboron in lieu of the strongly basic <br>organometallic reagents as carbon source in Cu-catalyzed <br>cyclopropene carbometallation opens unprecedented three-<br>component reactivity for stereoselective synthesis of poly-substituted cyclopropanes. A proof-of-principle demonstration of this novel carbometallation strategy is presented herein for a highly convergent access to poly-substituted aminocyclopropane framework via <br>carboamination. Preliminary results on asymmetric desymmetrization with commercial bisphosphine ligands attained high levels of enantioselection, offering a straightforward access to enantioenriched aminocyclopropanes bearing all-three chiral centers, including an all-carbon quaternary center. This strategy may underpin a host of novel synthetic protocols for poly-substituted cyclopropanes. <br>


Author(s):  
Kavitha K ◽  
Asha S ◽  
Hima Bindu T.V.L ◽  
Vidyavathi M

The safety and efficacy of a drug is based on its metabolism or metabolite formed. The metabolism of drugs can be studied by different in vitro models, among which microbial model became popular. In the present study, eight microbes were screened for their ability to metabolize phenobarbital in a manner comparable to humans with a model to develop alternative systems to study human drug metabolism. Among the different microbes screened, a filamentous fungi Rhizopus stolonifer metabolized phenobarbital to its metabolite which is used for further pharmacological and toxicological studies. The transformation of phenobarbital was identified by high- performance liquid chromatography (HPLC). Interestingly, Rhizopus stolonifer sample showed an extra metabolite peak at 3.11min. compared to its controls. The influence of different carbon sources in media used for growth of fungus, on metabolite production was studied, to find its effect in production of metabolite as the carbon source may influence the growth of the cell.


Crop Science ◽  
1980 ◽  
Vol 20 (2) ◽  
pp. 208-213 ◽  
Author(s):  
T. A. Kerby ◽  
D. R. Buxton ◽  
K. Matsuda
Keyword(s):  

2020 ◽  
Vol 36 (4) ◽  
pp. 121-125
Author(s):  
Е.Е. Frantsuzova ◽  
A.A. Vetrova

Genes involved in the dibenzothiophene degradation have been identified in the genome of Gordonia alkanivorans 135. The efficiency of the degradation was evaluated by high-performance liquid chromatography after the strain cultivation in mineral sulfur-free medium with glucose (hexadecane) as a carbon source at a temperature of 28 °C. The results obtained in this work allow us to consider the Gordonia alkanivorans 135 strain as promising for development of bio technological method for microbial oil desulfurization. Gordonia, dibenzothiophene, biodegradation. This work was financially supported by the Russian Science Foundation (Grant no. 19-74-00097).


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