Rhamnolipid
Mostrando 1-12 de 40 artigos, teses e dissertações.
-
1. Rhamnolipid Biosurfactants Produced by Pseudomonas Species
ABSTRACT: Surfactants are chemical products widely used in our daily life in toothpaste and other personal hygiene and cosmetic products, and in several industries. Biosurfactants are surfactants of biological origin that can be produced by microorganisms and have many advantages, such as low toxicity and high biodegradability, compared to synthetic counterp
Braz. arch. biol. technol.. Publicado em: 27/06/2016
-
2. Biosurfactant production by
Pseudomonas aeruginosa in kefir and fish mealThe aim of this study was to increase rhamnolipid production by formulating media using kefir and fish meal for
Pseudomonas aeruginosa strains isolated from different environmental resources. The strains, named as H1, SY1, and ST1, capable of rhamnolipid production were isolated from soil contaminated with wastes originating from olive anBraz. J. Microbiol.. Publicado em: 2015-09
-
3. OPTIMIZATION OF THE OPERATING CONDITIONS FOR RHAMNOLIPID PRODUCTION USING SLAUGHTERHOUSE-GENERATED INDUSTRIAL FLOAT AS SUBSTRATE
AbstractBiosurfactants have a wide range of applications in emulsions, separations, and solubilization because these chemicals reduce the surface tension and viscosity of solutions. This work studied rhamnolipid production using a batch bioreactor with a working volume of 1.5 liters, Pseudomonas aeruginosa ATCC (American Type Culture Collection) 10145 strain
Braz. J. Chem. Eng.. Publicado em: 2015-06
-
4. Production and characterization of di-rhamnolipid produced by Pseudomonas aeruginosa TMN
Pseudomonas aeruginosa TMN was used to produce rhamnolipid (RL) from a variety of carbon and nitrogen substrates. The most favorable carbon sources for RL production were glucose and glycerol (both at 40 g/L), giving a RL yield of 0.3 and 0.25 g/L, respectively. Meanwhile, sodium nitrate appeared to be the preferable nitrogen source, resulting in a RL produc
Braz. J. Chem. Eng.. Publicado em: 2014-12
-
5. Cinética e caracterização de ramnolipídeos produzidos por Pseudomonas aeruginosa MSIC02 utilizando glicerol como fonte de carbono
Glycerol, a co-product of biodiesel production, was used as a carbon source for the kinetics studies and production of biosurfactants by P. aeruginosa MSIC02. The highest fermentative parameters (Y PX = 3.04 g g-1; Y PS = 0.189 g g-1, P B = 31.94 mg L-1 h-1 and P X = 10.5 mg L-1 h-1) were obtained at concentrations of 0.4% (w/v) NaNO3 and 2% (w/v) glycerol.
Quím. Nova. Publicado em: 2014-06
-
6. In situ biosurfactant production and hydrocarbon removal by Pseudomonas putida CB-100 in bioaugmented and biostimulated oil-contaminated soil
In situ biosurfactant (rhamnolipid) production by Pseudomonas putida CB-100 was achieved during a bioaugmented and biostimulated treatment to remove hydrocarbons from aged contaminated soil from oil well drilling operations. Rhamnolipid production and contaminant removal were determined for several treatments of irradiated and non-irradiated soils: nutrient
Braz. J. Microbiol.. Publicado em: 2013
-
7. Produção de lipopeptídeos e glicolipídeos a partir da bioconversão do co-produto da produção do biodiesel / Production of lipopeptides and glycolipids from the bioconversion of co-product of biodiesel production process
Biossurfactantes são compostos químicos tensoativos sintetizados por microrganismos. Estes compostos possuem muitas vantagens quando comparados com seus equivalentes sintetizados quimicamente como ação específica, baixa toxicidade, alta biodegradabilidade, efetividade em condições extremas de temperatura, pH e força iônica. Apresentam-se como substi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2012
-
8. Avaliação da atividade antimicrobiana de ramnolipídeos sobre Listeria monocytogenes / Antimicrobial activity of rhamnolipids against Listeria monocytogenes
The rhamnolipids (RL) are biodegradable biosurfactants which have low toxicity and surface activity properties that can be useful for food processing industries. The objective of this study was to evaluate the susceptibility of Listeria monocytogenes with two rhamnolipids products: the rhamnolipid from P. aeruginosa LBI that was produced and purified in the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
-
9. Biosurfactants as anti-adhesive compounds of several pathogenic bacteria on polystyrene surfaces / Biossurfatantes como agentes inibidores da adesão de patógenos em superfícies de poliestireno
O estabelecimento de biofilmes microbianos em superfícies é responsável por inúmeros problemas, já que estes podem constituir uma fonte de microrganismos patogênicos e deteriorantes. A formação dos biofilmes é precedida pela adesão dos microrganismos, assim, medidas que inibem ou reduzem essa adesão contribuem para a redução da formação de bio
Publicado em: 2009
-
10. ProduÃÃo de biossurfactantes a partir da glicerina obtida da produÃÃo de biodiesel / Production of biosurfactants from glycerin obtained from biodiesel production
O objetivo deste trabalho foi avaliar a glicerina resultante da transesterificaÃÃo do Ãleo de mamona como fonte de carbono e nutrientes para P. aeruginosa LAMI. O efeito da concentraÃÃo de nutrientes e de condiÃÃes ambientais foi avaliado de acordo com dois planejamentos fatoriais completos sobre o crescimento celular, produÃÃo de biossurfactante e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2008
-
11. InfluÃncia da fonte de carbono na produÃÃo de biosurfactante por espÃcies de Pseudomonas isoladas de efluente agroindustrial
The biosurfactantes possess many advantages in relation to the synthetic, surfactants, such as: low toxicity, biodegradability, great chemical and structural diversity. The objective of were: 1) To isolate bacteria of Pseudomonas genus in agri-industrial effluent; 2) To detect the production in vitro of the rhamnolipidic biosurfactant; 3) To verify the use o
Publicado em: 2007
-
12. Production of biosurfactants from Pseudomonas aeruginosa PA 1 isolated in oil environments
The potential production of rhamnolipid-type biosurfactants is assessed based on the development of a fermentative process with a strain of Pseudomonas aeruginosa PA1, which was isolated from oil production wastewater in the Northeast of Brazil. These production of molecules using different carbon (n-hexadecane, paraffinic oil, glycerol and babassu oil) and
Brazilian Journal of Chemical Engineering. Publicado em: 2002-04