INVESTIGADORES
PELLERANO roberto gerardo
congresos y reuniones científicas
Título:
TRACE ELEMENTS IN CRUDE DROGUE AND INFUSIONS OF Margyricarpus pinnatus
Autor/es:
MARTÍNEZ, GLORIA C.; FURLONG, OCTAVIO JAVIER; MAZZA, SILVIA; PETENATTI, ELISA M.; MARCHEVSKY, EDUARDO JORGE; PELLERANO, ROBERTO G.
Lugar:
Potrero de los Funes
Reunión:
Congreso; XXX Encuentro Anual de la Sociedad de Biología de Cuyo; 2012
Resumen:
In this
work samples of Margyricarpus pinnatus (Lam.) Kuntze (Fam: Rosaceae) as well as infusions prepared from them
were investigated for their trace element composition. This herb is widely used
in South America by its diuretic and carminative effects. Element
concentrations in the medicinal herb and their infusions were determined by
ICP-AES. The following trace elements were studied: Cd, Cu, Fe, Pb and Zn.
Leaves and stems of the herb samples were digested in a microwave oven in order
to determine the total contents. Infusions were prepared using distilled water
at 85 ºC for 15 min. The decreasing sequence of the mean metal levels in the
raw material of studied herb was as follows: Fe > Zn >
Cu > Pb > Cd. The means of total content in raw
material were: Fe (265µg g-1), Zn (45 µg g-1), Cu (6,3 µg
g-1), Pb (1,2 µg g-1), Cd (0,03 µg g-1). The
toxic elements Cd and Pb were found only in the whole overground herb at low
concentrations, but not in the final infusions (below the limit of
quantification). The extraction yield for the elements present in the infusions
was calculated: Fe (18.5%), Zn (28.3%) and Cu (47.4%). Finally, the estimated
daily intake was compared with current recommendations (WHO 2007). All products
and its infusions were included within the upper tolerable limits for minerals,
in trace elements such as toxic elements present at low levels.