Data/hora: 17/06/2024 02:45:51

Provedor de dados: | 58
País: | Brazil
Título: | Biodegradation of kerosene: Study of growth optimization and metabolic fate of P. janthinellum SDX7
Autores: | Khan,Shamiyan R.; Nirmal,J.I. Kumar; Kumar,Rita N.; Patel,Jignasha G.
Data: | 2015-06-01
Ano: | 2015
Palavras-chave: | Penicillum janthinellum SDX7; Optimal growth; Metabolites; Kerosene degradation.
Resumo: | Penicillum janthinellum SDX7 was isolated from aged petroleum hydrocarbon-affected soil at the site of Anand, Gujarat, India, and was tested for different pH, temperature, agitation and concentrations for optimal growth of the isolate that was capable of degrading upto 95%, 63% and 58% of 1%, 3% and 5% kerosene, respectively, after a period of 16 days, at optimal growth conditions of pH 6.0, 30 °C and 180 rpm agitation. The GC/MS chromatograms revealed that then-alkane fractions are easily degraded; however, the rate might be lower for branched alkanes, n-alkylaromatics, cyclic alkanes and polynuclear aromatics. The test doses caused a concentration-dependent depletion of carbohydrates of P. janthinellum SDX7 by 3% to 80%, proteins by 4% to 81% and amino acids by 8% to 95% upto 16 days of treatment. The optimal concentration of 3% kerosene resulted in the least reduction of the metabolites of P. janthinellum such as carbohydrates, proteins and amino acids with optimal growth compared to 5% and 1% (v/v) kerosene doses on the 12th and 16th day of exposure. Phenols were found to be mounted by 43% to 66% at lower and higher concentrations during the experimental period. Fungal isolate P. janthinellum SDX7 was also tested for growth on various xenobiotic compounds.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000200397
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-838246220140112
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.46 n.2 2015
Fonte: | info:eu-repo/semantics/openAccess