250ºC; detector temperature was 310ºC; split ratiowas 1:25. The components were
identified by comparing the peak retention times in the chromatogram and the complete
mass-spectra of individual components with the corresponding results for pure
compounds in the NIST-5 Mass Spectral Library.
Figure 1. Chromatogram of apricot pomace extract by 2-propanol
Accoding to the GC-MS analysis, 39 phytochemical compounds were identified
in the apicot pomace extract. The main components are aldehydes, namely, hexanal
(1.32%), (E)-2-hexanal (3.10%), (Z)-2-heptenal (3.65%), heptanal (2.18%), 2-
phenylacetaaldehyde (1.29%), β-cyclocitral (5.17%), (E, E)-2,4-decadienal (3.65%),
and ketones, namely 2-hexanone (1.03%), 3-hexanone (0.54%). The class of alcohols
is presented by (Z)-3-hexenol (0.76%), (E)-2-hexenol (1.87%), hexanol (5.67%).
The extract also contains esters, such as (E)-2-hexenyl acetate (2.78%), (Z)-3-
hexenyl butanoate (1.51 %) and hexyl hexanoate (2.12 %) as a minor components.
Table 1 Component composition of volatile substances of extract squeezes
of apricot
Retention
time, min
Name of the compound
Molecular
weight, g/mole
Quantitative
ratio, %
4.04
hexanol
102
5.67
5.34
(Z)-3-hexenol
100
0.76
5.91
(E)-2-hexenol
100
1.87
7.23
2-hexanone
100
1.03
8.01
3-hexanone
100
0.54
8.61
(Z)-2-heptenal
112
3.65
9.58
hexanal
100
1.32
10.06
benzaldehyde
106
1.94
10.39
(E)-2-hexanal
98
3.10
11.96
heptanal
114
2.18
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