Poster presentation
155
LIPIDS OF THE SEEDS OF Alhagi persarum
N.K. Yuldasheva, Sh.Kh. Ibotov, S.D. Gusakova, S.Z. Nishanbaev
S.Yu. Yunusov Institute of the Chemistry of Plant Substances Academy of sciences of the
Republic of Uzbekistan st. Mirzo-Ulugbek, 77, 100170 Tashkent
e-mail: nigorayuldasheva@myrambler.ru
Alhagi persarum
Boiss. &Buhse (Persian camel's thorn, Fabaceae) is a perennial
herbaceous semi-shrub widespread in
the south of European Russia, Western Siberia
and Central Asia. In Uzbekistan it occurs in saline wet areas of Kyzylkum, Nizhne-
Zarafshan and Karshi-Karnabchul districts.
The plant is widely used in Iraq and Afghanistan as a food and medicinal plant. In
folk medicine, the aerial part of A. persarum, and less often fruits and roots, is used as a
diuretic and diaphoretic. Infusions, decoctions or fresh juice are used for gastrointestinal
diseases. Extracts
from the aerial part of
A. persarum
have antimicrobial properties.
We first studied the lipids of mature seeds of
A. persarum
collected in the saline
lands of Jizzakh region in 2022. Neutral lipids (NL)
from the crushed seeds of
A.
persarum
were extracted in the Soxhlet apparatus in benzene (b.p. 72-800C) with the
yield of 5.27%. Polar lipids (PL) were isolated from the meal by triple extraction with a
mixture of chloroform and methanol (2:1, v/v) - 0,75%. Hydrocarbons, carotenoids,
triacylglycerides (basic) esters of LC with aliphatic and cyclic alcohols, free fatty acids,
triterpenols, and phytosterols were found in NL.
Lipophilic substances (4.0%) and fatty acids were isolated from NL by alkaline
hydrolysis. According to TLC on Silufol in the solvent system hexane: ether 4:1, the
main component of lipophilic substances were phytosterols. Fatty acids were converted
to methyl esters by diazomethane treatment, which were analyzed by GC on an Agilent
GG 8860 chromatograph. The results of the FAME analysis are given in the table.
Table. Fatty
acid composition of
Alhagi persarum
seeds, GC, % by weight
Fatty acid
Content
Fatty acid
Content
14:0, 15:0, 16:0,18:0
13,57
22:1
0,13
18:1n9
12,78
24:0
0,24
18:2n6
68,57
26:0
1,99
18:3n6
1,05
12:0,16:1, 17:0
tr.
20:0
0,50
∑saturated fatty acids
16,96
20:1n9
0,51
∑unsaturated fatty acids 83,04
22:0
0,66
It was found that the lipids contain 16 fatty acids from 12:0 to 26:0, in the sum of the
unsaturated acid 18:2n6 (or ω6, 68.57%) prevails. Thus,
A. persarum
seeds are a
promising source of biologically active linoleic acid.
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