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Antimicrobial and anti-adhesive potential of biosurfactants produced by Candida...

Rufino, R. D.; Luna, J. M.; Sarubbo, L. A.; Rodrigues, L. R.; Teixeira, J. A.; Takaki, G. M. Campos


Interactions between glycerol, PEG-200 and (NH4)2 SO4 in the stability of heter...

Gomes, Daniela S.; Matamá, Maria Teresa; Paulo, Artur Cavaco; Jordão, R. C. C.; Takaki, G. M. Campos; Salgueiro, Alexandra A.

Cutinases (EC 3.1.1.74)are versatile enzymes that have hydrolytic activity on various esters [1]. The spacial structure and the catalytic site of the enzymes can be protected by chemical additives to promove the stability of the activity [2, 3]. The goal of this work was to improve the stability of a recombinant cutinase produced by Escherichia coli.


Chromium (VI) ion adsorption features of chitosan film and its chitosan/zeolite...

Batista, Anabelle C. L.; Villanueva, Emílio R.; Amorim, Rosa Valéria S.; Tavares, M. T.; Takaki, G. M. Campos

This research evaluated the importance of the adsorption properties of chitosan a chitosan/zeolite conjugate film for the removal of Cr(VI) ions from solutions in the 5–260 mg/L concentration range, when the pH was adjusted to 4.0 and 6.0. The uptake capacities of the films formed by chitosan and by the chitosan/zeolite conjugate were calculated by mass balance. The equilibrium isotherms were fitted to the Lang...


Evaluation antimicrobial and antiadhesive properties of the biosurfactant lunas...

Luna, J. M.; Rufino, R. D.; Sarrubbo, L. A.; Rodrigues, L. R.; Teixeira, J. A.; Takaki, G. M. Campos

Different groups of biosurfactants exhibit diverse properties and display a variety of physiological functions in producer microorganisms; these include enhancing the solubility of hydrophobic/water-insoluble compound, heave metal binding, bacterial pathogenesis, cell adhesion and aggregation, quorum sensing and biofilm formation. Candida sphaerica was grown in a low cost medium, consisting of distilled water s...


Antimicrobial and anti-adhesive potential of a biosurfactant Rufisan produced b...

Rufino, R. D.; Luna, J. M.; Sarrubbo, L. A.; Rodrigues, L. R.; Teixeira, J. A.; Takaki, G. M. Campos

In the last years, researches developed with biosurfactants for application in the medical area have been revealing the promising biological activities of these biomolecules. In this work the antimicrobial and anti-adhesive properties of a biosurfactant Rufisan isolated from the yeast Candida lipolytica UCP 0988, growth in a medium supplemented with ground nut refinery residue was determined against several mic...


Chromobacterium violaceum as a potential biosurfactant‐producing microorganism

Antunes, Adriana Almeida; Takaki, G. M. Campos; Teixeira, J. A.; Rodrigues, L. R.


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    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia