چگونگي تغيير و تبديل زيستي آلكان هاي خطي تحت تاثير كنسرسيوم هاي بومي

Investigation Of Bioconversion Of Normal Chain Alkanes Treated By Native Consortia

The researches on biological conversion of alkanes have mainly focused on their removal using different species. However, in this paper the aim is to investigate the conversion of alkanes using some native consortia in order to understand the function of those microorganisms on cracking of long chain alkanes into lighter ones. For this purpose, the effects of native consortia prepared form petroleum polluted sights on different alkanes including octadecane, nonadecane, dodecane and eicosane are evaluated. The extent of biological conversion is evaluated using GC-MS analytical instrument. The results show that some oxidized compound such alcohols, fatty acids and also branched hydrocarbons are appeared in minor amounts. But, a white powder is remained after biological treatment of alkanes that is insoluble in both water and oil phases. Using FTIR instrument the presence of OH, CO OH. C,=0 bonds, are revealed indicating a polymeric substance that is produced from the intermediated products of bioconversion of alkanes.