UTILIZATION OF TANNIC ACID BY BACTERIA IN TROPICAL AQUATIC AND SOIL ENVIRONMENTS

Two bacterial strains designated as EO1 and EO2, were isolated by selective culture enrichment from Lagos lagoon water and mangrove soil samples. They were subsequently identified based on morphological and physiological characteristics as well as 16S rRNA gene sequence analysis as Klebsiella pneumo...

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Bibliographic Details
Published in:Journal of microbiology, biotechnology and food sciences biotechnology and food sciences, 2020-12, Vol.10 (3), p.335-343
Main Authors: Olumuyiwa, Emmanuel, Amund, Olukayode, Ilori, Matthew, Schmidt, Stefan
Format: Article
Language:English
Subjects:
Acids
Aquatic environment
Benzoic acid
Carbon sources
Estuaries
Estuarine environments
Gallic acid
Intermediates
Klebsiella
Lagoons
Microorganisms
Physical characteristics
Pollutants
Protocatechuic acid
Pyrogallol
rRNA 16S
Sequence analysis
Soil microorganisms
Soil water
Tannic acid
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Summary:Two bacterial strains designated as EO1 and EO2, were isolated by selective culture enrichment from Lagos lagoon water and mangrove soil samples. They were subsequently identified based on morphological and physiological characteristics as well as 16S rRNA gene sequence analysis as Klebsiella pneumoniae strain EO1 and Pantoea cypripedii strain EO2 with accession numbers KX355800 and KX355801. Microbial growth assessment was performed in triplicates under aerobic batch conditions. The two isolates were capable of utilizing tannic acid, gallic acid, glucose, succinate, benzoic acid, and protocatechuic acid as sole carbon sources. Growth experiments along with enzymatic studies indicated that the organisms hydrolyzed tannic acid through gallic acid and pyrogallol as metabolic intermediates. The organisms have potential for the elimination of polyphenolic pollutants such as gallotannins associated with wood residues in Nigerian estuarine environments.
ISSN:1338-5178
1338-5178
DOI:10.15414/jmbfs.2020.10.3.335-343