Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil)
In order to describe the transformations of tannic acid during its degradation (under aerobic and anaerobic conditions) incubations were performed. To evaluate the oxygen consumption, the tannic acid was added to 1 L of water sample from Monjolinho's reservoir (22º00'S and 47º54'W); t...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
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| Series: | Brazilian Journal of Biology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842002000400004&lng=en&tlng=en |
| _version_ | 1811238925115588608 |
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| author | M. B. CUNHA-SANTINO I. BIANCHINI Jr. L. E. F. SERRANO |
| author_facet | M. B. CUNHA-SANTINO I. BIANCHINI Jr. L. E. F. SERRANO |
| author_sort | M. B. CUNHA-SANTINO |
| collection | DOAJ |
| description | In order to describe the transformations of tannic acid during its degradation (under aerobic and anaerobic conditions) incubations were performed. To evaluate the oxygen consumption, the tannic acid was added to 1 L of water sample from Monjolinho's reservoir (22º00'S and 47º54'W); these solutions were aerated and the dissolved oxygen was monitored for 16 days, the anaerobic process was avoided. For the anaerobic and aerobic degradation, the dissolved organic carbon and the acid tannic concentrations were estimated on the samples days. The results were fitted to first-order kinetic model, being possible to verify that during the 16 days the oxygen uptake was 3.6 mg.L-1, the deoxygenation rate (kD)of this process was 0.39 day-1. The degradation coefficients were calculated through the decay of the tannic acid and organic carbon concentrations. In the aerobic process, the global decay coefficient (kG) was 0.36 day-1 and in the anaerobic 0.28 day-1. Overall, the obtained degradation coefficients suggest that the bacterioplankton of the Monjolinho's reservoir possess a high capacity of polyphenols degradation. |
| first_indexed | 2024-04-12T12:50:50Z |
| format | Article |
| id | doaj.art-b04888e1c92e4908bb4569bffd910585 |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-04-12T12:50:50Z |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-b04888e1c92e4908bb4569bffd9105852022-12-22T03:32:29ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-4375624a58559010.1590/S1519-69842002000400004S1519-69842002000400004Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil)M. B. CUNHA-SANTINO0I. BIANCHINI Jr.1L. E. F. SERRANO2Universidade Federal de São CarlosUniversidade Federal de São CarlosUniversidade Federal de São CarlosIn order to describe the transformations of tannic acid during its degradation (under aerobic and anaerobic conditions) incubations were performed. To evaluate the oxygen consumption, the tannic acid was added to 1 L of water sample from Monjolinho's reservoir (22º00'S and 47º54'W); these solutions were aerated and the dissolved oxygen was monitored for 16 days, the anaerobic process was avoided. For the anaerobic and aerobic degradation, the dissolved organic carbon and the acid tannic concentrations were estimated on the samples days. The results were fitted to first-order kinetic model, being possible to verify that during the 16 days the oxygen uptake was 3.6 mg.L-1, the deoxygenation rate (kD)of this process was 0.39 day-1. The degradation coefficients were calculated through the decay of the tannic acid and organic carbon concentrations. In the aerobic process, the global decay coefficient (kG) was 0.36 day-1 and in the anaerobic 0.28 day-1. Overall, the obtained degradation coefficients suggest that the bacterioplankton of the Monjolinho's reservoir possess a high capacity of polyphenols degradation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842002000400004&lng=en&tlng=enoxygen uptakeaerobic mineralizationanaerobic mineralizationtannic acidMonjolinho Reservoir (UFSCar, São Carlos, SP) |
| spellingShingle | M. B. CUNHA-SANTINO I. BIANCHINI Jr. L. E. F. SERRANO Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil) Brazilian Journal of Biology oxygen uptake aerobic mineralization anaerobic mineralization tannic acid Monjolinho Reservoir (UFSCar, São Carlos, SP) |
| title | Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil) |
| title_full | Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil) |
| title_fullStr | Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil) |
| title_full_unstemmed | Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil) |
| title_short | Aerobic and anaerobic degradation of tannic acid on water samples from Monjolinho reservoir (São Paulo, SP, Brazil) |
| title_sort | aerobic and anaerobic degradation of tannic acid on water samples from monjolinho reservoir sao paulo sp brazil |
| topic | oxygen uptake aerobic mineralization anaerobic mineralization tannic acid Monjolinho Reservoir (UFSCar, São Carlos, SP) |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842002000400004&lng=en&tlng=en |
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