A erosão dental é um processo multifatorial que envolve a desmineralização do
esmalte/dentina pela ação química de ácidos extrínsecos ou intrínsecos. A película
adquirida é um filme, livre de bactérias, que cobre os dentes e atua como barreira de
difusão ou membrana permeável seletiva, pre...
ABSTRACT The physicochemical attributes of emulsified systems are influenced by the characteristics of their internal phase droplets (concentration, size and morphology), which can be modified not only by the formulation components, but also by the analytical methodology employed. Thus, the aim of this w...
Bacillus amyloliquefaciens fmb50 produces a high yield of surfactin, a lipopeptide-type biosurfactant that has been widely studied and has potential applications in many fields. A foam overflowing culture has been successfully used in the combined production-enrichment fermentation of surfactin. In this ...
Background This study investigated the potential application of two biosurfactants for enhanced removal capability and biodegradation of motor oil contaminated sand under laboratory conditions. The biosurfactants were produced by the yeast Candida sphaerica and by the bacterium Bacillus sp. cultivated in...
Diacerein is used for symptomatic relief and cartilage regeneration in osteoarthritis. Due to gastrointestinal side effects, poor aqueous solubility and low bioavailability, its clinical usage has been restricted. The objective of the present study was to enhance its dissolution profile and to attain sus...
Background A biosurfactant produced by Pseudomonas aeruginosa cultivated in a low-cost medium formulated with 2.5% vegetable oil refinery residue and 2.5% corn steep liquor and distilled water was employed to stabilize silver nanoparticles in the liquid phase. The particles were initially synthesized usi...
Background: Biotechnological processes are costly, especially for the production of biosurfactants. The successful production of a biosurfactant is dependent on the development of processes using low cost raw materials. Considering the importance of the characteristics of a biosurfactant to facilitate it...
Candida/metabolismo,
Tensoactivos/metabolismo,
Tensoactivos/química,
Tensoactivos/toxicidad,
Biomasa,
Tensión Superficial,
Micelas,
Ácidos Grasos/análisis,
Fermentación,
Cinética,
Artemia,
Lipopéptidos
Cestrum parqui L’Herit (n.v. palqui) es una planta originaria de Sudamérica cuyos efectos benéficos descritos incluyen acción antipirética y sudorífica, tratamiento de diversas afecciones a la piel como quemaduras, eczema, impétigo y herpes. Hasta hoy, sólo se ha podido establecer científicamen...
In this paper, nanostructured systems were developed, with the aid of ternary phase diagrams, from two surfactants, of differing degrees of lipophilicity (PPG-5-Ceteth-20 and the Oleth 10) and two oil phases (oleic acid and isopropyl myristate). It was observed that there were differences between the fou...
