Identification of electron acceptor properties of Penicillium camemberti used for effective treatment of chlorinated organic compounds

2005-01-01
Taseli, BK
Gökçay, Celal Ferdi
Two methods described in this paper use respirometric monitoring of the accumulated oxygen uptake rate, following the addition of bleachery effluents to a reactor containing Penicillium camemberti and detection of inorganic chloride removal by a chloride electrode for electron acceptor identification. In the case of respirometric studies, adsorbable organic halogens (AOX) removal was retarded at high acetate concentrations and the metabolism shifted towards aerobic respiration. Contrary to this, aerobic respiration was suppressed at low acetate concentrations and the removal of AOX was enhanced. Inorganic chloride removal detected with a chloride electrode verified these findings too. Cl- ion production paralleling AOX removal supports the hypothesis that organic chlorine acts as electron acceptor for this fungus.
FRESENIUS ENVIRONMENTAL BULLETIN

Suggestions

Development of novel asymmetric catalysts for various transformations and investigation of a rearrangement reaciıon
Yazıcıoğlu, Emre Yusuf; Tanyeli, Cihangir; Department of Chemistry (2010)
A new class of pyridine and sulfur containing chiral compounds are synthesized. Camphor sulfonyl chloride is chosen as a valuable chiral starting compound. In our synthetic strategy, sulfonylchloride moiety is first reduced to corresponding thiol compound by using triphenylphosphine and then the resultant thiol will be converted to various alkyl, aryl substituted derivatives. The second part of our strategy includes the pyridine ring construction on the carbonyl side of camphor with the formation of β-hydro...
Synthesis of 1,2,3,5- tetrasubstituted pyrrole derivatives via 5-exo-dig type cyclization and stereoselective functionalisation of ferrocene derivatives
Kayalar, Metin; Demir, Ayhan Sıtkı; Department of Chemistry (2005)
A convenient and new method for the synthesis of 1,2,3,5-tetrasubstituted pyrrole derivatives starting from 1,3,-dicarbonyl compounds through acid catalyzed cyclization reaction is described. Alkylation of 1,3-dicarbonyl compound with propargyl bromide followed by one step cyclization with the introduction of primary amines in the presence of catalytic amount of triflouroacetic acid (TFA) affords the corresponding pyrrole derivatives in high yields. The investigations on the studies of developing a new meth...
Identification of small-molecule urea derivatives as novel NAMPT inhibitors via pharmacophore-based virtual screening
Ozgencil, Fikriye; EREN, GÖKÇEN; ÖZKAN, YEŞİM; GÜNTEKİN ERGÜN, SEZEN; Atalay, Rengül (Elsevier BV, 2020-01-01)
Nicotinamide phosphoribosyltransferase (NAMPT) catalyzes the condensation of nicotinamide (NAM) with 5-phosphoribosyl-1-prophosphate (PRPP) to yield nicotinamide mononucleotide (NMN), a rate limiting enzyme in a mammalian salvage pathway of nicotinamide adenine dinucleotide (NAD(+)) synthesis. Recently, intracellular NAD(+) has received substantial attention due to the recent discovery that several enzymes including poly(ADPribose) polymerases (PARPs), mono(ADP-ribose) transferases (ARTs), and sirtuins (SIR...
Preparation and characterization of zeolite framework stabilized cuprous oxide nanoparticles
Zahmakiran, Mehmet; Özkar, Saim (Elsevier BV, 2009-05-15)
Zeolite framework stabilized copper(I) oxide nanoparticles (4.8 +/- 2.6 nm) were prepared for the first time by using a four step procedure: the ion exchange of Cu(2+) ions with the extra framework Na(+) ions in Zeolite-Y, the reduction of the Cu(2+) ions within the cavities of zeolite with sodium borohydride in aqueous solution, the dehydration of Zeolite-Y with the copper(0) nanoclusters, and the oxidation of intrazeolite copper(0) nanoclusters by O(2) at room temperature. Zeolite stabilized copper(I) oxi...
Synthesis of various camphor-based chiral pyridine derivatives
Işık, Murat; Tanyeli, Cihangir; Department of Chemistry (2005)
Chiral aromatic nitrogen heterocycles are finding many applications in asymmetric organic synthesis, particularly as ligands in the preparation of chiral metal complexes. Since camphor-based chiral auxiliaries are known to be especially effective, a number of pyridines fused to the camphor skeleton have been reported. It is well known that nicotinic acid and its derivatives exhibiting qualitatively the biological activity of nicotinamide, which acts as an electron acceptor in many biological redox reactions...
Citation Formats
B. Taseli and C. F. Gökçay, “Identification of electron acceptor properties of Penicillium camemberti used for effective treatment of chlorinated organic compounds,” FRESENIUS ENVIRONMENTAL BULLETIN, pp. 347–352, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52769.