Identification of Newly Discovered Degradation Intermediates of Benzene Compounds

2018 ◽  
Vol 21 (1) ◽  
pp. 238-247 ◽  
Author(s):  
Chen Wang ◽  
Anjing Wang ◽  
Ruyu Zhang ◽  
Naidong Zhang ◽  
Yujie Feng
Keyword(s):  
Degradation Intermediates ◽  
Benzene Compounds

Degradation of thiamethoxam and metoprolol by UV, O3 and UV/O3 hybrid processes: Kinetics, degradation intermediates and toxicity

2012 ◽  
Vol 472-473 ◽  
pp. 314-327 ◽  
Author(s):  
D. Šojić ◽  
V. Despotović ◽  
D. Orčić ◽  
E. Szabó ◽  
E. Arany ◽  
...  
Keyword(s):  
Hybrid Processes ◽  
Degradation Intermediates

scholarly journals Capped mRNA Degradation Intermediates Accumulate in the Yeast spb8-2 Mutant

1998 ◽  
Vol 18 (9) ◽  
pp. 5062-5072 ◽  
Author(s):  
Ronald Boeck ◽  
Bruno Lapeyre ◽  
Christine E. Brown ◽  
Alan B. Sachs
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Family Member ◽  
Gene Deletion ◽  
Binding Protein ◽  
Mrna Degradation ◽  
Protein Family ◽  
Suppressor Mutation ◽  
Mrna Decapping ◽  
Mrna Species ◽  
Degradation Intermediates

ABSTRACT mRNA in the yeast Saccharomyces cerevisiae is primarily degraded through a pathway that is stimulated by removal of the mRNA cap structure. Here we report that a mutation in the SPB8(YJL124c) gene, initially identified as a suppressor mutation of a poly(A)-binding protein (PAB1) gene deletion, stabilizes the mRNA cap structure. Specifically, we find that thespb8-2 mutation results in the accumulation of capped, poly(A)-deficient mRNAs. The presence of this mutation also allows for the detection of mRNA species trimmed from the 3′ end. These data show that this Sm-like protein family member is involved in the process of mRNA decapping, and they provide an example of 3′-5′ mRNA degradation intermediates in yeast.

scholarly journals Photocatalytic degradation of some toxic analytical reagents withTiO2

1999 ◽  
Vol 1 (2) ◽  
pp. 85-88 ◽  
Author(s):  
M. M. H. Khalil ◽  
A. A. Abdel-Shafi ◽  
M. S. A. Abdel-Mottaleb
Keyword(s):  
Fluorescence Spectra ◽  
Electron Excitation ◽  
Light Illumination ◽  
Dye Molecules ◽  
Photodegradation Rate ◽  
Visible Light Illumination ◽  
Ultraviolet Light Irradiation ◽  
Analytical Reagents ◽  
Uv Visible ◽  
Degradation Intermediates

Photodegradation processes of two azo dyes atTiO2/H2Ointerface under visible and ultraviolet light irradiation are investigated with different experimental techniques (absorption and fluorescence spectroscopy as well as total organic carbon analysis). Measuring their fluorescence spectra monitored the generation of some degradation intermediates. The photodegradation rate depends on dye structure and pH of the dispersion. The rate was found to be enhanced by increasing dissolved oxygen concentrations in the medium. The mechanism of the photodegradation process under uv-visible light illumination involves an electron excitation into the conduction band of theTiO2semiconductor leading to the generation of very active oxygenated species that attack the dye molecules leading to photodegradation.

scholarly journals Chromophores from hexeneuronic acids (HexA): synthesis of model compounds and primary degradation intermediates

Cellulose ◽  
2017 ◽  
Vol 24 (9) ◽  
pp. 3703-3723 ◽  
Author(s):  
Thomas Rosenau ◽  
Antje Potthast ◽  
Nele Sophie Zwirchmayr ◽  
Takashi Hosoya ◽  
Hubert Hettegger ◽  
...  
Keyword(s):  
Model Compounds ◽  
Hexeneuronic Acids ◽  
Degradation Intermediates
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