Blackberrysamples
Wild blackberries(R. ulmifolius Schott) from LaCuerva(Cáceres,
Spain) collected in 2012 were selected for the evaluation of
patterns in the dispersion of quantitative data obtained by SPME
followed by GC–MS. For sample homogeneity,whole blackberries
were freeze-dried,powdered and sieved(o0.5 mm)prior to
analysis(sampleWBLACK).
Validation of the improved SPME procedure was done using
two additional sets of Italian blackberries collected in 2011 and
2012 in different locations all over Calabria