Publication
New dual-stage pH control fed-batch cultivation strategy for the improvement of lipids and carotenoids production by the red yeast Rhodosporidium toruloides NCYC 921
| dc.contributor.author | Dias, Carla | |
| dc.contributor.author | Sousa, Sofia | |
| dc.contributor.author | Caldeira, João | |
| dc.contributor.author | Reis, Alberto | |
| dc.contributor.author | Silva, Teresa Lopes da | |
| dc.date.accessioned | 2015-08-06T13:57:44Z | |
| dc.date.available | 2015-08-06T13:57:44Z | |
| dc.date.issued | 2015 | |
| dc.description.abstract | The optimal medium pH to produce biomass and fatty acids by the red yeast Rhodosporidium toruloides NCYC 921 is 4.0, and to produce carotenoids is 5.0. Based on this difference, a dual-stage pH control fed-batch cultivation strategy for the enhancement of lipids and carotenoids production by this yeast was studied. The results showed that when the yeast growth phase was conducted at pH 4.0, and the products accumulation phase was conducted at pH 5.0, biomass, total fatty acid and total carotenoid productivities were significantly improved comparing with the yeast fed batch cultivations carried out at fixed medium pH (4 or 5). Under dual-stage pH control conditions, the biomass, carotenoids and lipids productivities attained 2.35 g/L h, 0.29 g/L h and 0.40 g/L h, respectively. It was also observed that the oxygen played a major role in the yeast carotenoid production. | por |
| dc.identifier.citation | Dias, C.; Sousa, S.; Caldeira, J.; Reis, A.; Silva, T.L. da - New dual-stage pH control fed-batch cultivation strategy for the improvement of lipids and carotenoids production by the red yeast Rhodosporidium toruloides NCYC 921. In: Bioresource Technology, 2015, Vol. 189, p. 309-318 | por |
| dc.identifier.issn | 0960-8524 | |
| dc.identifier.uri | http://hdl.handle.net/10400.9/2852 | |
| dc.language.iso | eng | por |
| dc.publisher | Elsevier | por |
| dc.relation.publisherversion | http://dx.doi.org/10.1016/j.biortech.2015.04.009 | por |
| dc.subject | Biomass | por |
| dc.subject | Carotenoids | por |
| dc.subject | Fatty acids | por |
| dc.subject | Rhodosporidium toruloides | por |
| dc.title | New dual-stage pH control fed-batch cultivation strategy for the improvement of lipids and carotenoids production by the red yeast Rhodosporidium toruloides NCYC 921 | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 318 | por |
| oaire.citation.startPage | 309 | por |
| oaire.citation.title | Bioresource Technology | por |
| oaire.citation.volume | 189 | por |
| person.familyName | Dias | |
| person.familyName | Delgado dos Reis | |
| person.familyName | Saraiva Lopes da Silva | |
| person.givenName | Carla | |
| person.givenName | Alberto José | |
| person.givenName | Maria Teresa | |
| person.identifier.ciencia-id | A415-EBF5-4B2F | |
| person.identifier.ciencia-id | E317-E8DB-14E3 | |
| person.identifier.ciencia-id | FB14-8F56-51E6 | |
| person.identifier.orcid | 0000-0002-3282-4210 | |
| person.identifier.orcid | 0000-0002-1405-9981 | |
| person.identifier.orcid | 0000-0003-4365-8868 | |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |
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| relation.isAuthorOfPublication.latestForDiscovery | a1b25c30-0238-4ead-84c2-d4815a3ce200 |