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Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris
The secretion of exopolysaccharides and oxalic acid in cultures of a white rot Ganoderma applanatum strain and a brown rot Tyromyces palustris strain were tested in terms of culture time, pH range, and temperature. The high yield of exopolysaccharides (EPS) required a moderate temperature of 28 °C f...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Springer Netherlands
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4210633/ https://www.ncbi.nlm.nih.gov/pubmed/25178492 http://dx.doi.org/10.1007/s11274-014-1733-x |
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author | Osińska-Jaroszuk, Monika Wlizło, Kamila Szałapata, Katarzyna Jarosz-Wilkołazka, Anna |
author_facet | Osińska-Jaroszuk, Monika Wlizło, Kamila Szałapata, Katarzyna Jarosz-Wilkołazka, Anna |
author_sort | Osińska-Jaroszuk, Monika |
collection | PubMed |
description | The secretion of exopolysaccharides and oxalic acid in cultures of a white rot Ganoderma applanatum strain and a brown rot Tyromyces palustris strain were tested in terms of culture time, pH range, and temperature. The high yield of exopolysaccharides (EPS) required a moderate temperature of 28 °C for G. applanatum and 20 °C for T. palustris. G. applanatum and T. palustris accumulated more EPS when the concentration of the carbon source (maltose for G. applanatum and fructose for T. palustris) was 30 g/L. The results indicate that the production of oxalic acid by G. applanatum is correlated with the initial pH value of the culture medium and the concentration of oxalic acid increased to 1.66 ± 0.2 mM at the initial pH of 6.5 during the fungal growth. During the growth of T. palustris, the reduction of the initial pH value of the growing medium lowered the oxalic acid concentration from 7.7 ± 0.6 mM at pH 6.0 to 1.99 ± 0.2 mM at pH 3.5. T. palustris accumulated considerably more oxalic acid than G. applanatum and its presence did not affect significantly the production of exopolysaccharides. We also observed that the maximum amounts of exopolysaccharides secreted during cultivation of G. applanatum and T. palustris were 45.8 ± 1.2 and 19.1 ± 1.2 g/L, respectively. |
format | Online Article Text |
id | pubmed-4210633 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-42106332014-10-31 Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris Osińska-Jaroszuk, Monika Wlizło, Kamila Szałapata, Katarzyna Jarosz-Wilkołazka, Anna World J Microbiol Biotechnol Original Paper The secretion of exopolysaccharides and oxalic acid in cultures of a white rot Ganoderma applanatum strain and a brown rot Tyromyces palustris strain were tested in terms of culture time, pH range, and temperature. The high yield of exopolysaccharides (EPS) required a moderate temperature of 28 °C for G. applanatum and 20 °C for T. palustris. G. applanatum and T. palustris accumulated more EPS when the concentration of the carbon source (maltose for G. applanatum and fructose for T. palustris) was 30 g/L. The results indicate that the production of oxalic acid by G. applanatum is correlated with the initial pH value of the culture medium and the concentration of oxalic acid increased to 1.66 ± 0.2 mM at the initial pH of 6.5 during the fungal growth. During the growth of T. palustris, the reduction of the initial pH value of the growing medium lowered the oxalic acid concentration from 7.7 ± 0.6 mM at pH 6.0 to 1.99 ± 0.2 mM at pH 3.5. T. palustris accumulated considerably more oxalic acid than G. applanatum and its presence did not affect significantly the production of exopolysaccharides. We also observed that the maximum amounts of exopolysaccharides secreted during cultivation of G. applanatum and T. palustris were 45.8 ± 1.2 and 19.1 ± 1.2 g/L, respectively. Springer Netherlands 2014-09-02 2014 /pmc/articles/PMC4210633/ /pubmed/25178492 http://dx.doi.org/10.1007/s11274-014-1733-x Text en © The Author(s) 2014 https://creativecommons.org/licenses/by/4.0/ Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
spellingShingle | Original Paper Osińska-Jaroszuk, Monika Wlizło, Kamila Szałapata, Katarzyna Jarosz-Wilkołazka, Anna Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris |
title | Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris |
title_full | Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris |
title_fullStr | Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris |
title_full_unstemmed | Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris |
title_short | Correlation between the production of exopolysaccharides and oxalic acid secretion by Ganoderma applanatum and Tyromyces palustris |
title_sort | correlation between the production of exopolysaccharides and oxalic acid secretion by ganoderma applanatum and tyromyces palustris |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4210633/ https://www.ncbi.nlm.nih.gov/pubmed/25178492 http://dx.doi.org/10.1007/s11274-014-1733-x |
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