56 / 90
Table 4.
Content of flavonoids and tannins, % in Achillea crithmifolia
W. et K.
Localities
Quantity of flavonoids,
%
Quantity of tannins,
%
Pirdop - Copper melting factory
0.1218
3.5680
Sofia - Tzarigradsko shosse
0.0860
3.4290
Vitosha - Platoto
0.1213
3.4290
tannins the higher presence is found in the sample with industrial pollution
(3.568
%),
while in the other districts it is reduced (3.429
%).
According to Table 5 the highest quantity of tannins in
Tanacetum vulgare
is in industrial polluted district (8.915 %), followed by the district with background
pollution (7.315 %). The lowest quantity is in transport-polluted region (5.258
%).
The quantity of flavonoids is higher in the sample collected from transport
polluted district (0.1392
%),
followed by the region with industrial pollution
(0.1257 %), while the lowest quantity is found in background polluted district
(0.1146 %).
Table 5.
Contents of flavonoids and tannins,
%
in Tanacetum vulgare
L.
Localities
Quantity of flavonoids,
Quantity of tannins,
%
%
Pirdop - Copper melting factory
0.1257
8.9150
Sofia - Tzarigradsko shosse
0.1392
5.2580
Vitosha - Platoto
0.1146
7.3150
CONCLUSIONS
1. The main flavonoid aglycones, accumulated on the leaf surface of the
examined species
Achillea crithmifolia
are: apigenin; 6,7-dimethoxy-6-
hydroxyluteolin; 3,4'-dimethoxykaempferol; 3,6,4'-trimethoxy-6-hydroxykaemp-
ferol; and 3,6,4'-trimethoxyquercetagetin. In
Tanacetum vulgare they are\
6,4'-di-
methoxyscutellarein; luteolin; 6-methoxy-6-hydroxyluteolin; 6,3‘-dimethoxy-
6-hydroxyluteolin; 3,6-dimethoxyquercetagetin; and 3,6,3'-trimethoxyquerce
tagetin.
2. The environmental conditions have a direct effect on the biosynthesis
of polyphenols in both species.
Acknowledgements.
The author would like to thank Senior Researcher S. Ivancheva
from Institute of Botany at Bulgarian Academy of Science in Sofia, for her assistance
to this study.
56
Электронная Научная СельскоХозяйственная Библиотека