INVESTIGADORES
SOLDATI Analia Leticia
congresos y reuniones científicas
Título:
Trace elemental determination of metals in wine yards and wine leaves from middle Rhine Valley by neutron activation analysis
Autor/es:
SOUND, IRIS; SOLDATI, ANALIA L.; NASCIMIENTO JÄHNKE, SAMARA; VICENTE VILAS, VÍCTOR; BAUMANN, WOLFRAM
Lugar:
Río de Janeiro, Brasil
Reunión:
Conferencia; Nuclear Analytical Methods in Life Sciences (NAMLS08); 2005
Resumen:
As the
middle Rhine valley between the cities Bingen and Koblenz is a UNESCO world heritage the
question arises how to conserve this precious landscape. The landscape is
influenced by the wine cultivation for over 2000 years. Currently it is very
difficult to keep this cultural scene, because the wine cultivation is in
retreat. There are different possibilities to free the area: by conventional
methods as removal of bushes, fire or pasture. If one wants to use pasture to
free the scene you must by sure that no hazardous residues are In the ground.
In 2004 two incidents occurred that in one case cows and in the other goats
died in a pasture area which was formerly used for wine cultivation. The death
of both herbivores was caused by selenium deficiency. This can occur when a
high zinc concentration is in the diet. So the aim of this investigation was to
elucidate the metal contents in the ground and in the animal diet. It could be
found the a quite high concentration of zinc was found in the ground. It was
also found cobalt, selenium and chromium. Only very low concentrations of selenium
was found in the animal diet, but it was also found zinc at elevated
concentrations. So it is quite possible that the death was caused by high
concentrations of zinc and the selenium deficiency in the diet. As pasture of
an area is a very cost effective method to free an area the herbivores must be
controlled closely and examined for any deficiencies. Next studies will be
focused on the zinc binding in the leaves by proteins. Further used methods
will be gel electrophoresis and ESI-MS analysis.