Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor
Influences of phenol, ?-naphtol and ?-naphtol, which are toxic chemicals, on citric acid biosynthesis and biomass in the artificial culture setting of Aspergillus niger using batch fermenter are examined in the most favorable fermentation conditions, and a model is proposed. Addition of certain conc...
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Pontificia Universidad Católica de Valparaíso
2010
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oai:scielo:S0717-345820100006000082011-05-26Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentorÇevrml,Bekir StkKaripta,ErginYaar,AhmetYtolu,Mustafa A. niger citric acid fermenter toxic chemicals (phenols) Influences of phenol, ?-naphtol and ?-naphtol, which are toxic chemicals, on citric acid biosynthesis and biomass in the artificial culture setting of Aspergillus niger using batch fermenter are examined in the most favorable fermentation conditions, and a model is proposed. Addition of certain concentrations of phenol, ?-naphtol and ?-naphtol to the culture increases the citric acid production. According to this model, maximum citric acid concentration is 48.3 g L-1 in a culture that does not contain any toxic chemicals, whereas the maximum concentrations obtained in cultures containing 25 mg L-1 phenol, 25 mg L-1 alpha-naphtol and 15 mg L-1 beta-naphtol are 62.5 g L-1, 78.1 g L-1 and 86.0 g L-1, respectively. Moreover, addition of toxic chemicals to the culture reduces fermentation time by 24 hrs.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.13 n.6 20102010-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000600008en |
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Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
A. niger citric acid fermenter toxic chemicals (phenols) |
| spellingShingle |
A. niger citric acid fermenter toxic chemicals (phenols) Çevrml,Bekir Stk Karipta,Ergin Yaar,Ahmet Ytolu,Mustafa Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor |
| description |
Influences of phenol, ?-naphtol and ?-naphtol, which are toxic chemicals, on citric acid biosynthesis and biomass in the artificial culture setting of Aspergillus niger using batch fermenter are examined in the most favorable fermentation conditions, and a model is proposed. Addition of certain concentrations of phenol, ?-naphtol and ?-naphtol to the culture increases the citric acid production. According to this model, maximum citric acid concentration is 48.3 g L-1 in a culture that does not contain any toxic chemicals, whereas the maximum concentrations obtained in cultures containing 25 mg L-1 phenol, 25 mg L-1 alpha-naphtol and 15 mg L-1 beta-naphtol are 62.5 g L-1, 78.1 g L-1 and 86.0 g L-1, respectively. Moreover, addition of toxic chemicals to the culture reduces fermentation time by 24 hrs. |
| author |
Çevrml,Bekir Stk Karipta,Ergin Yaar,Ahmet Ytolu,Mustafa |
| author_facet |
Çevrml,Bekir Stk Karipta,Ergin Yaar,Ahmet Ytolu,Mustafa |
| author_sort |
Çevrml,Bekir Stk |
| title |
Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor |
| title_short |
Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor |
| title_full |
Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor |
| title_fullStr |
Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor |
| title_full_unstemmed |
Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor |
| title_sort |
influences of phenolic compounds on citric acid productivity by aspergillus niger in stirred fermentor |
| publisher |
Pontificia Universidad Católica de Valparaíso |
| publishDate |
2010 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000600008 |
| work_keys_str_mv |
AT cevrmlbekirstk influencesofphenoliccompoundsoncitricacidproductivitybyaspergillusnigerinstirredfermentor AT kariptaergin influencesofphenoliccompoundsoncitricacidproductivitybyaspergillusnigerinstirredfermentor AT yaarahmet influencesofphenoliccompoundsoncitricacidproductivitybyaspergillusnigerinstirredfermentor AT ytolumustafa influencesofphenoliccompoundsoncitricacidproductivitybyaspergillusnigerinstirredfermentor |
| _version_ |
1718441827698212864 |