Abstract
The results of a comparative analysis of the individual composition of volatile compounds of vegetative parts of fresh bracken growing in different regions of the Krasnoyarsk Territory are presented for the first time. The collection of samples was carried out in May 2021, using an unopened plant with a size of 30 cm. Using chromatography-mass spectrometric analysis, 43 volatile components were identified, of which 30 were identified. It was revealed that in the composition of volatile components, the largest number of 12 compounds belong to the class of aldehydes, slightly less than 11 substances are represented by alcohols, the remaining 7 components belong to different classes of compounds. It was found that the predominant components in the composition of the bracken in terms of content are benzaldehyde, which accumulates up to 44% and hexanal - up to 23% of the total amount of substances. It was determined that the vayi plants differ in a large number of volatile compounds and their content, compared with the stems. Among the studied samples, in terms of the content of volatile components 98% in the wars and 94% in the stems, the fern collected in the southern part of the western Sayans (Shushenskoye settlement) prevails. Phenanthrene was identified in volatile components in samples No. 1 and No. 2 in an amount from 0.2% to 0.9%. The technique used did not allow the identification of ptaquiloside in fresh bracken.
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