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Defeitos congénitos de glicosilação (cdg) em portugal: a ponta do iceberg

Pituitary apoplexy: surgical or conservative management

Caracterização das doentes com cancro da mama no Hospital de Braga: utilização...

Doenças hereditárias do metabolismo estudadas na Unidade de Bioquímica Genética

Doenças lisossomais na etiologia da hidropsia fetal não imune

Endurance of methanogenic archaea in anaerobic bioreactors treating oleate-base...

Methanogenic archaea are reported as very sensitive to lipids and long chain fatty acids (LCFA). Therefore, in conventional anaerobic processes, methane recovery during LCFA-rich wastewater treatment is usually low. By applying a start-up strategy, based on a sequence of step feeding and reaction cycles, an oleate-rich wastewater was efficiently treated at an organic loading rate of 21 kg COD m(-3) day(-1) (50 ...

Biomethanation potential of biological and other wastes

Anaerobic technology has been traditionally applied for the treatment of carbon rich wastewater and organic residues. Anaerobic processes can be fully integrated in the biobased economy concept for resource recovery. After a brief introduction about applications of anaerobic processes to industrial wastewater treatment, agriculture feedstock and organic fraction of municipal solid waste, the position of anaerob...

Atrazine dissipation and its impact on the microbial communities and community ...

The effects of repeated atrazine application (40mg a.i.kg-1) on its degradation, microbial communities and enzyme activities were studied in a peat based biomixture composed by straw, soil and peat in the volumetric proportions of 2:1:1 that can be used in on-farm biopurification system. Atrazine removal efficiency was high (96%, 78% and 96%) after each atrazine application and did not show a lag phase. Microbi...

Extreme thermophilic biohydrogen production from arabinose and glucose

Continuous hydrogen production rate from arabinose was significantly higher than from glucose, when higher organic loading rate was used. This fact was associated to higher lactate production in the reactor fed with glucose. The higher concentration of lactate was not a consequence of bacterial community shift, and is likely related to changes in the main metabolic pathways of glucose catabolism.

Addition of electron acceptors stimulates methanogenesis from lipids by anaerob...

Incubation of anaerobic sludge with triolein or oleate in the presence of nitrate or sulphate led to an increased methane production, relatively to incubations without inorganic electron acceptor. Faster methane production was obtained in assays amended with nitrate. Methanogenesis occurred after the reduction of alternative electron acceptors.