9 documents found, page 1 of 1

Echinacea purpurea fractions represent promising plant-based anti-inflammatory ...

Echinacea purpurea is traditionally used in the treatment of inflammatory diseases. Therefore, we investigated the anti-inflammatory capacity of E. purpurea dichloromethanolic (DE) and ethanolic extracts obtained from flowers and roots (R). To identify the class of compounds responsible for the strongest bioactivity, the extracts were fractionated into phenol/carboxylic acid (F1) and alkylamide fraction (F2)...

Influence of aeolian deposits on the pedogenesis process of the Costa da Morte ...

Aeolian deposition in coastal system can modify pedogenic processes or provide parent material for new pedogenesis cycles. In Galicia region (NW Spain), as in other regions of the world, the pedogenic processes associated with aeolian deposits under coastal conditions are little know. These processes are also conditioned by the development time from the formation of the sedimentary deposits, which in the case o...

On the bioactivity of Echinacea purpurea extracts to modulate the production of...

Inflammatory diseases are the focus of several clinical studies, due to limitations and serious side effects of available therapies. Plant-based drugs (e.g., salicylic acid, morphine) have become landmarks in the pharmaceutical field. Therefore, we investigated the immunomodulatory effects of flowers, leaves, and roots from <i>Echinacea purpurea</i>. Ethanolic (EE) and dichloromethanolic extracts (DE) were obta...

The Potential of Cistus salviifolius L. to Phytostabilize Gossan Mine Wastes Am...

The São Domingos mine is within the Iberian Pyrite Belt, a mining district with large concentrations of polymetallic massive sulfide deposits. Mine waste heaps are considered extreme environments, since they contain high total concentrations of potentially hazardous elements (PHE), which contribute to inhibiting the development of most plants. Autochthonous plant species, such as Cistus salviifolius L., are abl...

TERRAMATER project: a tool for post-fire rehabilitation and restoration of soils

In recent years the risk of wildfires in the regions located in the Portuguese-Spanish border varied between moderate to high or very high. The loss of the vegetation cover and the presence of huge areas of unprotected soil due to the occurrence of large wildfires, as well as the limited post-fire protection actions, have increased the risk of soil erosion to catastrophic levels. Thus, it is crucial to act imme...

Algae in acid mine drainage and relationships with pollutants in a degraded min...

Acid mine drainage represents an extreme environment with high concentrations of potentially toxic elements and low pH values. These aquatic habitats are characterised by harsh conditions for biota, being dominated by acidophilic organisms. The study site, São Domingos mine, located in one of the largest metallogenetic provinces in the world, the Iberian Pyrite Belt, was closed without preventive measures. To i...

Algae in acid mine drainage and relationships with pollutants in a degraded min...

Acid mine drainage represents an extreme environment with high concentrations of potentially toxic elements and low pH values. These aquatic habitats are characterised by harsh conditions for biota, being dominated by acidophilic organisms. The study site, São Domingos mine, located in one of the largest metallogenetic provinces in the world, the Iberian Pyrite Belt, was closed without preventive measures. To i...

Effects of organic/inorganic amendments on trace elements dispersion by leachat...

Greenhouse pot experiments were conducted over 13 months to evaluate the effect of two amendment mixture doses (30 and 75 Mg/ha) on the geochemical dispersion of trace elements by leaching hazardous mine wastes from the São Domingos mine. Mineralogical evolution of these materials was also evaluated. Amendment mixtures containing solid wastes from agriculture (plant remains + strawberry substrate and rockwool u...

Evolução quaternária, distribuição de partículas nos solos e ambientes de sedim...