Mycobacterium sp. strain RJGII-135 is capable of degrading a wide range of polycyclic aromatic hydrocarbons (PAHs), including benzo[a]pyrene (BaP). In this study, critical aspects of degradation were investigated, including compound uptake, relative rates of PAH degradation, and the effects of co-occurring PAH substrates on BaP degradation and mineralization to CO2. Mycobacterium sp. strain RJG...

Ligninolytic white rot fungus, Phanerochaete chrysosporium, isolated from soil sample of petroleum refinery, was used for degradation of five polycyclic aromatic hydrocarbons (PAHs: acenaphthene, anthracene, phenanthrene, fluoranthene and pyrene), simultaneously and individually in sterile and unsterile soil. For maximum biodegradation, after 42 days of incubation, optimum conditions were pH 7....

The activity and selectivity of the bimetallic NiCo/chrysotile catalyst during hydrogenation model objects (anthracene phenanthrene) for 1 hour at an initial hydrogen pressure 3 MPa a temperature 400 °C were studied. chrysotile mineral used as substrate active centers nickel cobalt is waste product asbestos production Kostanay Minerals JSC (the Republic Kazakhstan). was characterized by complex...

While the equilibrium partitioning (EqP) method has been demonstrated to effectively predict adverse effects of nonionic organic chemicals in sediment on benthic organisms by toxicity tests, only a limited number studies have performed both water-only and whole-sediment tests using same species verified validity EqP-based assessment. To further examine EqP for application wide range hydrophobic...

The enhanced stability of bent or kinked polycyclic benzenoids over linear ones is well established, phenanthrene and anthracene being archetypal representatives. The question why kinked is more stable than linear is, however, still a matter of discussion. Recently, it has been proposed that H-H bonding interactions between the two hydrogen atoms in the bay region of phenanthrene are responsibl...

We have measured the solubilities of several inorganic and organic compounds at high pressures up to 400 MPa. For this purpose, care should be exercised in instrumentation. The results include solubility values for aqueous solutions of NaCl, NaCl 2H2O, toluene, anthracene, phenanthrene, and amino acids (Gly, Ala, Val, Leu, and Ile). In addition, we determined the solubility of C60 in n-hexane a...

The objective of the study was to determine the concentration of total PAHs and to identify the potential sources of contamination in sediments from the Romanian Black Sea sector. Sixteen priority polycyclic hydrocarbons were identified and determined quantitatively in samples of sediment collected from marine areas (depths over 20 m) from the 12 stations located between Sulina and Mangalia, du...

Chemical purification of Phenanthrene can be achieved by conventional laboratory techniques, such as preparative HPLC. However, this process presents several drawbacks: i) tendency of adding solvent impurities to the targeted compound; ii) limitations in the separation, especially with other fused ring compounds such as Anthracene, Fluorene, etc. By contrast, the zone melting technique [1] has ...

Novel analogues of N-piperazinyl fluoroquinolones were prepared and evaluated against a panel of Gram-positive and Gram-negative bacteria, to study the effect of introducing bulky anthracene and phenanthrene moieties on the antibacterial effects of norfloxacin, ciprofloxacin and gatifloxacin. Although most of the novel synthesized compounds had lower antibacterial effects, some derivatives show...

RATIONALE Polycyclic aromatic hydrocarbons (PAHs) are nonpolar and difficult to detect by desorption electrospray ionization. We present a new detection method based on cationization with silver ions, which has the added advantage of being able to differentiate PAHs with the same mass but different structure. METHODS 9,10-Diphenylanthracene and triptycene, in addition to four different groups...