| dc.creator | Bezerra de Souza Sobrinho,Humberto | |
| dc.creator | de Luna,Juliana Moura | |
| dc.creator | Rufino,Raquel Diniz | |
| dc.creator | Figueiredo Porto,Ana Lúcia | |
| dc.creator | Sarubbo,Leonie Asfora | |
| dc.date | 2013-07-01 | |
| dc.date.accessioned | 2019-05-03T12:45:05Z | |
| dc.date.available | 2019-05-03T12:45:05Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000400004 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/85351 | |
| dc.description | Background: The aim of the present study was to propose a low-cost method for the production of a biosurfactant by the yeast Candida sphaerica and assess its toxicity and phytotoxicity. The medium was formulated with distilled water supplemented with residue from a soy oil refinery (5%) and corn steep liquor (2.5%) as substrates. These two products were the sources of carbon and nitrogen as well as mineral elements to encourage the growth of the microorganism and production of a biosurfactant. Results: The isolated biosurfactant yield was 6.364 g/l. The biosurfactant exhibited an excellent ability to reduce surface tension (26 mN/m) and demonstrated no toxicity against seeds of Brassica oleracea, Chicoria intybus and Solanum gilo or the micro crustacean Artemia salina employed as a bioindicator. The biosurfactant exhibited no antimicrobial activity against the fungi and bacteria tested. Conclusions: The promising results obtained in this study indicate the feasibility of producing biosurfactants from powerful non-toxic organic residues and their application in the bioremediation of contaminated soil and water. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Pontificia Universidad Católica de Valparaíso | |
| dc.relation | 10.2225/vol16-issue4-fulltext-4 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Electronic Journal of Biotechnology v.16 n.4 2013 | |
| dc.subject | biosurfactant | |
| dc.subject | bioreactor | |
| dc.subject | Candida sphaerica | |
| dc.subject | industrial residues | |
| dc.subject | toxicity | |
| dc.title | Assessment of toxicity of a biosurfactant from Candida sphaerica UCP 0995 cultivated with industrial residues in a bioreactor | |
