| dc.creator | Çevrml,Bekir Stk | |
| dc.creator | Karipta,Ergin | |
| dc.creator | Yaar,Ahmet | |
| dc.creator | Ytolu,Mustafa | |
| dc.date | 2010-11-01 | |
| dc.date.accessioned | 2019-05-03T12:44:47Z | |
| dc.date.available | 2019-05-03T12:44:47Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000600008 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/85171 | |
| dc.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. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Pontificia Universidad Católica de Valparaíso | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Electronic Journal of Biotechnology v.13 n.6 2010 | |
| dc.subject | A. niger | |
| dc.subject | citric acid | |
| dc.subject | fermenter | |
| dc.subject | toxic chemicals (phenols) | |
| dc.title | Influences of phenolic compounds on citric acid productivity by Aspergillus niger in stirred fermentor | |
