Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil
Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isol...
Ausführliche Beschreibung
Autor*in: |
Baylon, Mary Grace [verfasserIn] |
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Format: |
Artikel |
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Sprache: |
Englisch |
Erschienen: |
2016 |
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Schlagwörter: |
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Anmerkung: |
© Korean Institute of Chemical Engineers, Seoul, Korea 2017 |
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Übergeordnetes Werk: |
Enthalten in: The Korean journal of chemical engineering - Springer US, 1984, 34(2016), 1 vom: 09. Nov., Seite 105-109 |
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Übergeordnetes Werk: |
volume:34 ; year:2016 ; number:1 ; day:09 ; month:11 ; pages:105-109 |
Links: |
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DOI / URN: |
10.1007/s11814-016-0252-x |
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Katalog-ID: |
OLC2063037744 |
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520 | |a Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. | ||
650 | 4 | |a Untreated Low-rank Coal | |
650 | 4 | |a Coal Biosolubilization | |
650 | 4 | |a Coal Degradation | |
650 | 4 | |a Alkaline Degrading Substances | |
650 | 4 | |a Low Molecular Weight Coal Products | |
700 | 1 | |a David, Yokimiko |4 aut | |
700 | 1 | |a Pamidimarri, Sudheer D. V. N. |4 aut | |
700 | 1 | |a Baritugo, Kei-Anne |4 aut | |
700 | 1 | |a Chae, Cheol Gi |4 aut | |
700 | 1 | |a Kim, You Jin |4 aut | |
700 | 1 | |a Kim, Tae Wan |4 aut | |
700 | 1 | |a Kim, Min-Sik |4 aut | |
700 | 1 | |a Na, Jeong Geol |4 aut | |
700 | 1 | |a Park, Si Jae |4 aut | |
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10.1007/s11814-016-0252-x doi (DE-627)OLC2063037744 (DE-He213)s11814-016-0252-x-p DE-627 ger DE-627 rakwb eng 660 VZ 58.00 bkl Baylon, Mary Grace verfasserin aut Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Korean Institute of Chemical Engineers, Seoul, Korea 2017 Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. Untreated Low-rank Coal Coal Biosolubilization Coal Degradation Alkaline Degrading Substances Low Molecular Weight Coal Products David, Yokimiko aut Pamidimarri, Sudheer D. V. N. aut Baritugo, Kei-Anne aut Chae, Cheol Gi aut Kim, You Jin aut Kim, Tae Wan aut Kim, Min-Sik aut Na, Jeong Geol aut Park, Si Jae aut Enthalten in The Korean journal of chemical engineering Springer US, 1984 34(2016), 1 vom: 09. Nov., Seite 105-109 (DE-627)129165409 (DE-600)50398-8 (DE-576)099445263 0256-1115 nnns volume:34 year:2016 number:1 day:09 month:11 pages:105-109 https://doi.org/10.1007/s11814-016-0252-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 58.00 VZ AR 34 2016 1 09 11 105-109 |
spelling |
10.1007/s11814-016-0252-x doi (DE-627)OLC2063037744 (DE-He213)s11814-016-0252-x-p DE-627 ger DE-627 rakwb eng 660 VZ 58.00 bkl Baylon, Mary Grace verfasserin aut Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Korean Institute of Chemical Engineers, Seoul, Korea 2017 Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. Untreated Low-rank Coal Coal Biosolubilization Coal Degradation Alkaline Degrading Substances Low Molecular Weight Coal Products David, Yokimiko aut Pamidimarri, Sudheer D. V. N. aut Baritugo, Kei-Anne aut Chae, Cheol Gi aut Kim, You Jin aut Kim, Tae Wan aut Kim, Min-Sik aut Na, Jeong Geol aut Park, Si Jae aut Enthalten in The Korean journal of chemical engineering Springer US, 1984 34(2016), 1 vom: 09. Nov., Seite 105-109 (DE-627)129165409 (DE-600)50398-8 (DE-576)099445263 0256-1115 nnns volume:34 year:2016 number:1 day:09 month:11 pages:105-109 https://doi.org/10.1007/s11814-016-0252-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 58.00 VZ AR 34 2016 1 09 11 105-109 |
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10.1007/s11814-016-0252-x doi (DE-627)OLC2063037744 (DE-He213)s11814-016-0252-x-p DE-627 ger DE-627 rakwb eng 660 VZ 58.00 bkl Baylon, Mary Grace verfasserin aut Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Korean Institute of Chemical Engineers, Seoul, Korea 2017 Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. Untreated Low-rank Coal Coal Biosolubilization Coal Degradation Alkaline Degrading Substances Low Molecular Weight Coal Products David, Yokimiko aut Pamidimarri, Sudheer D. V. N. aut Baritugo, Kei-Anne aut Chae, Cheol Gi aut Kim, You Jin aut Kim, Tae Wan aut Kim, Min-Sik aut Na, Jeong Geol aut Park, Si Jae aut Enthalten in The Korean journal of chemical engineering Springer US, 1984 34(2016), 1 vom: 09. Nov., Seite 105-109 (DE-627)129165409 (DE-600)50398-8 (DE-576)099445263 0256-1115 nnns volume:34 year:2016 number:1 day:09 month:11 pages:105-109 https://doi.org/10.1007/s11814-016-0252-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 58.00 VZ AR 34 2016 1 09 11 105-109 |
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10.1007/s11814-016-0252-x doi (DE-627)OLC2063037744 (DE-He213)s11814-016-0252-x-p DE-627 ger DE-627 rakwb eng 660 VZ 58.00 bkl Baylon, Mary Grace verfasserin aut Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Korean Institute of Chemical Engineers, Seoul, Korea 2017 Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. Untreated Low-rank Coal Coal Biosolubilization Coal Degradation Alkaline Degrading Substances Low Molecular Weight Coal Products David, Yokimiko aut Pamidimarri, Sudheer D. V. N. aut Baritugo, Kei-Anne aut Chae, Cheol Gi aut Kim, You Jin aut Kim, Tae Wan aut Kim, Min-Sik aut Na, Jeong Geol aut Park, Si Jae aut Enthalten in The Korean journal of chemical engineering Springer US, 1984 34(2016), 1 vom: 09. Nov., Seite 105-109 (DE-627)129165409 (DE-600)50398-8 (DE-576)099445263 0256-1115 nnns volume:34 year:2016 number:1 day:09 month:11 pages:105-109 https://doi.org/10.1007/s11814-016-0252-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 58.00 VZ AR 34 2016 1 09 11 105-109 |
allfieldsSound |
10.1007/s11814-016-0252-x doi (DE-627)OLC2063037744 (DE-He213)s11814-016-0252-x-p DE-627 ger DE-627 rakwb eng 660 VZ 58.00 bkl Baylon, Mary Grace verfasserin aut Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Korean Institute of Chemical Engineers, Seoul, Korea 2017 Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. Untreated Low-rank Coal Coal Biosolubilization Coal Degradation Alkaline Degrading Substances Low Molecular Weight Coal Products David, Yokimiko aut Pamidimarri, Sudheer D. V. N. aut Baritugo, Kei-Anne aut Chae, Cheol Gi aut Kim, You Jin aut Kim, Tae Wan aut Kim, Min-Sik aut Na, Jeong Geol aut Park, Si Jae aut Enthalten in The Korean journal of chemical engineering Springer US, 1984 34(2016), 1 vom: 09. Nov., Seite 105-109 (DE-627)129165409 (DE-600)50398-8 (DE-576)099445263 0256-1115 nnns volume:34 year:2016 number:1 day:09 month:11 pages:105-109 https://doi.org/10.1007/s11814-016-0252-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 58.00 VZ AR 34 2016 1 09 11 105-109 |
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Enthalten in The Korean journal of chemical engineering 34(2016), 1 vom: 09. Nov., Seite 105-109 volume:34 year:2016 number:1 day:09 month:11 pages:105-109 |
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Baylon, Mary Grace ddc 660 bkl 58.00 misc Untreated Low-rank Coal misc Coal Biosolubilization misc Coal Degradation misc Alkaline Degrading Substances misc Low Molecular Weight Coal Products Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil |
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660 VZ 58.00 bkl Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil Untreated Low-rank Coal Coal Biosolubilization Coal Degradation Alkaline Degrading Substances Low Molecular Weight Coal Products |
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Baylon, Mary Grace David, Yokimiko Pamidimarri, Sudheer D. V. N. Baritugo, Kei-Anne Chae, Cheol Gi Kim, You Jin Kim, Tae Wan Kim, Min-Sik Na, Jeong Geol Park, Si Jae |
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bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil |
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Bio-solubilization of the untreated low rank coal by alkali-producing bacteria isolated from soil |
abstract |
Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. © Korean Institute of Chemical Engineers, Seoul, Korea 2017 |
abstractGer |
Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. © Korean Institute of Chemical Engineers, Seoul, Korea 2017 |
abstract_unstemmed |
Abstract Coal is a hydrocarbon-rich fossil fuel considered as a possible replacement for petroleum as a feedstock for the production of fuel and valuable chemicals. In this study, bacteria capable of solubilizing untreated low rank coal were isolated from soil. A total of 19 microorganisms were isolated from soil enriched in MR medium with coal and were identified based on 16S rRNA sequencing. The identified soil isolates belonging to the genera Citricoccus, Comamonas, Cupriavidus, Sphingomonas, and Sphingopyxis were screened based on their growth in the chemically defined MR medium containing different concentrations of coal. Among the identified microbial strains, Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were further characterized for their ability to degrade low-rank coal. Cupriavidus necator S2A2, Sphingopyxis ginsengisoli S2B14 and Sphingomonas sp. S2B18 were found to solubilize untreated low-rank coal as indicated by the release of solubilized coal products detected at OD450 when they were grown in LB medium containing 1% coal. Sphingomonas sp. S2B18 showed the highest coal solubilization activity, based on the high absorbance of its culture supernatant (0.190). Although laccase-like activity was not detected in these strains when tested for RBBR dye degradation, increase in the pH of the culture medium up to 8.25- 8.34 was observed. This may be attributed to the excretion of alkaline substances in the culture medium. Since biosolubilization of coal by microorganisms is a good alternative for the chemical conversion of coal, microorganisms screened in this study can be potentially used as biological catalysts for the conversion of coal into valuable chemicals. © Korean Institute of Chemical Engineers, Seoul, Korea 2017 |
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