Anand S. Nayak

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Stenotrophomonas sp. RMSK capable of degrading acenaphthylene as a sole source of carbon and energy was isolated from coal sample. Metabolites produced were analyzed and characterized by TLC, HPLC and mass spectrometry. Identification of naphthalene-1,8-dicarboxylic acid, 1-naphthoic acid, 1,2-dihydroxynaphthalene, salicylate and detection of key enzymes(More)
Melanins are an important class of natural pigments that have attracted great attention due to their biological role in photoprotection and technological applications [26]. These pigments are particularly intractable from an analytical perspective because they are photo-chemically very stable and are virtually insoluble in most organic solvents, acids and(More)
A novel indicator plate method was developed for screening of aliphatic-nitrile-degrading bacteria. Isolated bacteria were tested for utilization of acetonitrile as sole source of carbon and nitrogen with the release of ammonia. The released ammonia causes increase of the pH of the medium. Phenol red indicator is used for detection of ammonia based on(More)
The chrysene-degrading bacterium Pseudoxanthomonas sp. PNK-04 was isolated from a coal sample. Three novel metabolites, hydroxyphenanthroic acid, 1-hydroxy-2-naphthoic acid and salicylic acid, were identified by TLC, HPLC and MS. Key enzyme activities, namely 1-hydroxy-2-naphthoate hydroxylase, 1,2-dihydroxynaphthalene dioxygenase, salicylaldehyde(More)
Hyperdontia presents as a unique dental condition which may or may not require immediate corrective therapy. Supplemental teeth in the permanent dentitian comprises only 4% of all the supernumeraries, and bilateral supplemental teeth are even rarer entities. We present a rare case report of non-syndromic bilateral supplemental maxillary lateral incisors.
This investigation deals with the production of IAA by a bacterial isolate Pantoea dispersa strain GPK (PDG) identified by 16S rRNA gene sequence analysis. HPLC and Mass spectral analysis of metabolites from bacterial spent medium revealed that, IAA production by PDG is Trp-dependent and follows indole-3-pyruvic acid (IPyA) pathway. Substrate specificity(More)
Long-term potentiation (LTP) is an increase in synaptic responsiveness thought to be involved in mammalian learning and memory. The localization (presynaptic andyor postsynaptic) of changes underlying LTP has been difficult to resolve with current electrophysiological techniques. Using a biochemical approach, we have addressed this issue and attempted to(More)
A high-efficiency fluoranthene-degrading bacterium Paenibacillus sp. PRNK-6 was isolated from PAH-contaminated soil. The strain degrades 96% (240 mg l−1) of fluoranthene in 48 h. Various metabolic intermediates of fluoranthene catabolism were identified by gas chromatography (GC) and gas chromatography–high resolution mass spectrometry (GC-HRMS). Metabolite(More)
A bacterium Pseudomonas sp. TRMK1 capable of utilizing various phenylpropanoids was isolated from agro-industrial waste by enrichment culture technique. It is gram-negative, motile, aerobic, and able to utilize three different phenolic acids such as p-coumaric, ferulic, and caffeic acids at concentrations of 5, 10, and 15 mM in 18 h of incubation. The(More)
Three bacterial strains; Pseudomonas sp. TRMK1, Stenotrophomonas sp. TRMK2 and Xanthomonas sp. TRMK3 were isolated from agro-industrial waste by enrichment culture technique that are capable of utilizing phenolic acids as sole source of carbon and energy. These strains were found to utilize p-coumaric, ferulic and caffeic acid. The individual strains(More)