• Publications
  • Influence
Environmental impact of used motor oil.
  • R. Vazquez-Duhalt
  • Engineering, Medicine
  • The Science of the total environment
  • 1 February 1989
The available information shows that used motor oil is a very dangerous polluting product and as a consequence of its chemical composition, world-wide dispersion and effects on the environment, used motorOil must be considered a serious environmental problem. Expand
Suicide inactivation of peroxidases and the challenge of engineering more robust enzymes.
The catalytic cycle of peroxidases and the mechanism of the suicide inactivation process are discussed to establish a broad knowledge base for future rational protein engineering. Expand
Industrial Dye Decolorization by Laccases from Ligninolytic Fungi
White-rot fungi were studied for the decolorization of 23 industrial dyes and high laccase and manganese peroxidase activity was found in Trametes hispida, while solid-state culture on whole oats showed higher lacc enzyme activities compared with growth in a complex liquid medium. Expand
Polycyclic Aromatic Hydrocarbon Metabolism by White Rot Fungi and Oxidation by Coriolopsis gallica UAMH 8260 Laccase
There was no clear relationship between the ionization potential of the substrate and the first-order rate constant for substrate loss in vitro in the presence of ABTS, and the dione derivatives of these compounds were present. Expand
Nonylphenol algal bioaccumulation and its effect through the trophic chain.
Results showed that organisms placed in the first level of trophic chain are able to significantly bioconcentrate the pollutant and endocrine disruptor NP, which affects the growth of crustacean and the environmental presence of NP should be considered as a risk for the organisms living in an ecosystem. Expand
Lignin Peroxidase Oxidation of Aromatic Compounds in Systems Containing Organic Solvents
Benzyl alkylation of lignin peroxidase improved its activity in a system containing water-miscible organic solvent but did not increase its resistance to inactivation at high solvent concentrations. Expand
Evolutionary and structural diversity of fungal laccases
The topology of the phylogenetic trees indicate that a single monophyletic branch exists for fungal laccases and that laccase isozyme genes may have evolved independently, possibly through duplication-divergence events. Expand
Haloadaptation of the green alga Botryococcus braunii (race a)
This is the first report of laminaribiose as an organic osmoprotectant compound in saline stress of microalgae, and the most important effect of saline stress in this alga is the proportional increase of the α-laminaribiose content. Expand
Effect of pollutants on the ergosterol content as indicator of fungal biomass.
The results indicate that ergosterol can be a useful indicator for fungal biomass in polluted soils, and can be applied for monitoring bioremediation processes. Expand
Alkali and halide-resistant catalysis by the multipotent oxidase from Marinomonas mediterranea.
It is reported that the multipotent polyphenol oxidase PPO1 from the marine bacterium Marinomonas mediterranea remained functional above neutral pH presenting high specificity for phenolic compounds, in particular for methoxyl-substituted mono-phenols and catechols. Expand