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Study of the binding sites in the biomass of <Emphasis Type="Italic">Aspergillus niger</Emphasis> wild-type strains by FTIR spectroscopy |
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| Authors: | Katarína Gáplovská Alexandra ?imonovi?ová Radoslav Halko Lenka Okenicová Mária ?emberyová Slavomír ?erňanský Paula Brandeburová Tomá? Macku?ak |
| Institution: | 1.Faculty of Natural Sciences, Institute of Chemistry,Comenius University,Bratislava,Slovakia;2.Department of Soil Science, Faculty of Natural Sciences,Comenius University,Bratislava,Slovakia;3.Department of Analytical Chemistry, Faculty of Natural Sciences,Comenius University,Bratislava,Slovakia;4.Department of Environmental Ecology, Faculty of Natural Sciences,Comenius University,Bratislava,Slovakia;5.Department of Environmental Engineering, Faculty of Chemical and Food Technology,Slovak University of Technology,Bratislava,Slovakia |
| Abstract: | Fourier transform infrared (FTIR) spectroscopy studies were performed to confirm and to provide information on the identity and binding characteristics of the chemical groups responsible for the binding of elements using Aspergillus niger (A. niger) wild-type strains. Two absorption bands in the 3690–3615 and 2970–2895 cm?1 regions can characterize stretching vibrations OH and CH groups in fatty acids, respectively, and intensive bands around of 1600 cm?1 and by 1048 cm?1 correspond to stretching vibrations of C=O groups of amides (amide I) or stretching vibrations ν(C–N). The FTIR results confirmed that no extra differences between IR spectra of A. niger in raw biomass and in solid rest after extraction with chloroform were observed. The small differences were observed in IR spectra of A. niger in chloroform after extraction. |
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