Evaluation of natural attenuation-potential and biogeochemical analysis in nitrate contaminated bedrock aquifers by carbon source injection

2021 ◽  
Vol 780 ◽  
pp. 146459
Author(s):  
Da-won Lee ◽  
Yongtae Ahn ◽  
Kalimuthu Pandi ◽  
Joonhong Park ◽  
Seong-Teak Yun ◽  
...  
Keyword(s):  
Carbon Source ◽  
Natural Attenuation ◽  
Bedrock Aquifers

Evaluation of Natural Attenuation by Addition of Fumarate as Carbon Source and Gene Analysis in Groundwater Sample

2014 ◽  
Vol 19 (4) ◽  
pp. 62-69 ◽  
Author(s):  
Sunhwa Park ◽  
Hyun-Gu Kim ◽  
Sohyun Kim ◽  
Min-Kyeong Lee ◽  
Gyeong-Mi Lee ◽  
...  
Keyword(s):  
Carbon Source ◽  
Natural Attenuation ◽  
Gene Analysis ◽  
Groundwater Sample

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

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.

Natural attenuation at tar oil contaminated sites - results from the German funding priority KORA

2006 ◽  
Vol 14 (2) ◽  
pp. 288-292
Author(s):  
N. Hüsers ◽  
P. Börke ◽  
P. Werner
Keyword(s):  
Natural Attenuation ◽  
Contaminated Sites ◽  
Tar Oil

Enantioselective Multi-Component Cyclopropane Synthesis Enabled by Cu-Catalyzed Cyclopropene Carbometallation with Organoboron Reagent

2018 ◽  
Author(s):  
Zhanyu Li ◽  
Mengru Zhang ◽  
Yu Zhang ◽  
Shuang Liu ◽  
Jinbo Zhao ◽  
...  
Keyword(s):  
Carbon Source ◽  
Stereoselective Synthesis ◽  
Organometallic Reagents ◽  
Preliminary Results ◽  
Quaternary Center ◽  
Chiral Centers ◽  
Substituted Cyclopropanes ◽  
Proof Of Principle

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>

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