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| Méndez-Trujillo,V; Carrillo-Beltrán,M; Valdez-Salas,B; Gonzalez-Mendoza,D. |
| The aim of the present study was to isolate autochthonous microorganisms with biosurfactants capacities from the rhizospere of the cotton (Gossypium spp.), cachanilla (Pluchea sericea) and salicornia (Salicornia bigelovii) in the Mexicali valley. The biosurfactant activity and biosurfactant productions by the strains isolated from the rhizosphere of the cotton (Bs-Alg), cachanilla (Bs-Cach) and salicornia (Bs-Cach01) were determined using oil spreading technique and emulsifcation activity with corn, olive, soybean and diesel oils, respectively. The analysis of the 16S rRNA showed that strains Bs-Alg, Bs-Cach and Bs-Cach01 are closely related among them and with respect to all Bacillus subtilis with more than 99% similarity values. Results showed that all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mexicali valley; Biosurfactants; Bacillus subtilis; Native plants. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000200008 |
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| ARAÚJO,FÁBIO V. DE; NETTO,MARCELLE C.M.; AZEVEDO,GUSTAVO P.; JAYME,MARCELLY M.A.; NUNES-CARVALHO,MONICA C.; SILVA,MARIANA M.; CARMO,FLÁVIA L. DO. |
| ABSTRACT Marine sponges has been a large reservoir of microbial diversity, with the presence of many species specific populations as well as producing biologically active compounds, which has attracted great biotechnological interest. In order to verify the influence of the environment in the composition of the bacterial community present in marine sponges and biotechnological potential of bacteria isolated from these organisms, three species of sponges and the waters surrounding them were collected in different beaches of Rio de Janeiro, Brazil. The profile of the bacterial community present in sponges and water was obtained by PCR-DGGE technique and the biotechnological potential of the strains isolated by producing amylase, cellulase, protease and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial diversity; Biosurfactants; Enzymes; Marine sponges; PCR-DGGE.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602785 |
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| Accorsini,Fábio Raphael; Mutton,Márcia Justino Rossini; Lemos,Eliana Gertrudes Macedo; Benincasa,Maria. |
| Biosurfactants are bioactive agents that can be produced by many different microorganisms. Among those, special attention is given to yeasts, since they can produce many types of biosurfactants in large scale, using several kinds of substrates, justifying its use for industrial production of those products. For this production to be economically viable, the use of residual carbon sources is recommended. The present study isolated yeasts from soil contaminated with petroleum oil hydrocarbons and assessed their capacity for producing biosurfactants in low cost substrates. From a microbial consortium enriched, seven yeasts were isolated, all showing potential for producing biosurfactants in soybean oil. The isolate LBPF 3, characterized as Candida antarctica,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yeast; Biosurfactants; Glycerol; Soybean oil. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100013 |
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| Viramontes-Ramos,Sabina; Portillo-Ruiz,Martha Cristina; Ballinas-Casarrubias,María de Lourdes; Torres-Muñoz,José Vinicio; Rivera-Chavira,Blanca Estela; Nevárez-Moorillón,Guadalupe Virginia. |
| Petroleum-derived hydrocarbons are among the most persistent soil contaminants, and some hydrocarbon-degrading microorganisms can produce biosurfactants to increase bioavailability and degradation. The aim of this work was to identify biosurfactant-producing bacterial strains isolated from hydrocarbon-contaminated sites, and to evaluate their biosurfactant properties. The drop-collapse method and minimal agar added with a layer of combustoleo were used for screening, and positive strains were grown in liquid medium, and surface tension and emulsification index were determined in cell-free supernantant and cell suspension. A total of 324 bacterial strains were tested, and 17 were positive for the drop-collapse and hydrocarbon-layer agar methods. Most of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biosurfactants; Bioemulsifiers; Soil microbiota; Hydrocarbon contamination. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300017 |
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