Abstract:
Medium-sweet wine
counterfeiting, based on dry and mediumdry
wines, represents a possible practice in
winemaking industry. The primary objective
of the study conducted was to improve the
TLC method-Thin Layer Chromatography,
by replacing the cellulose layer,
recommended by STAS 6182 (17-8), with
silica gel, fluorescein included. This type of
layer which coats an aluminium foil
removes the spraying action of fluorescein
in order to detect spots of synthetic
sweeteners. Another objective of this paper
was the detection of synthetic sweeteners by
using TLC-60254 plates, in the case study
conducted on a lot of 16 wine samples
which were purchased. Among the analyzed
medium-sweet wine samples we identified
two adulterated wines, namely sample 8,
which was obtained from medium-dry wine
with addition of saccharin in order to be
included in the category of medium-sweet
wines, and wine sample 9, for which a dry
wine was used, to which an unidentified
sweetener was added with 0,29 Rf.
