| dc.creator | Rywinska,Anita | |
| dc.creator | Rymowicz,Waldemar | |
| dc.creator | Marcinkiewicz,Marta | |
| dc.date | 2010-07-01 | |
| dc.date.accessioned | 2019-05-03T12:44:44Z | |
| dc.date.available | 2019-05-03T12:44:44Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400009 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/85138 | |
| dc.description | In the present report, citric acid production from raw glycerol in two fed-batch systems by acetate negative-mutants of Yarrowia lipolytica: Wratislavia 1.31 and Wratislavia AWG7 was compared. In the system, in which the total glycerol concentration was 200 g∙L-1, the substrate was added by pulsed additions, and in the other, in which the total glycerol concentration was 300 g∙L-1, the substrate was added at a constant feeding rate of 1.4 g∙h-1. Despite high citric acid concentrations (155.2 and 157.5 g∙L-1 with Y. lipolytica Wratislavia 1.31 and Y. lipolytica Wratislavia AWG7, respectively) obtained from 300 g∙L-1 of glycerol, the yield of citric acid was similar, i.e. about 0.6 g∙g-1. The volumetric citric acid productivity was markedly higher (1.05 and 0.94 g∙L-1h-1 with Y. lipolytica Wratislavia 1.31 and Y. lipolytica Wratislavia AWG7 strains, respectively) in the cultures containing 200 g∙L-1 of carbon source. | |
| 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.4 2010 | |
| dc.subject | citric acid | |
| dc.subject | fed-batch culture | |
| dc.subject | Yarrowia lipolytica | |
| dc.subject | raw glycerol | |
| dc.title | Valorization of raw glycerol for citric acid production by Yarrowia lipolytica yeast | |
