PHENOLIC COMPOUNDS OF CEDAR WOOD (SIBERIAN PINE) PINUS SIBIRICA DU TOUR.

UDC 547.575; 543.641

  • Tat'yana Yevgen'yevna Fedorova A.E. Favorsky Irkutsk Institute of Chemistry SB RAS Email: fte@irioch.irk.ru
  • Sergey Vladimirovich Fedorov A.E. Favorsky Irkutsk Institute of Chemistry SB RAS Email: serfed@irioch.irk.ru
  • Vasily Anatolyevich Babkin A.E. Favorsky Irkutsk Institute of Chemistry SB RAS Email: babkin@irioch.irk.ru
DOI_disc_logo https://doi.org/10.14258/jcprm.2020037329
Keywords: Pinus sibirica Du Tour. wood, extractive substances, phenolic compounds, flavonoids, stilbenes, 1H and 13C NMR spectroscopy

Abstract

As part of the study of extractives of biomass of coniferous trees of Siberia in order to predict the possibility of obtaining valuable biologically active products, a study was conducted of the chemical composition of the ethyl acetate extract of cedar wood (Siberian pine) Pinus sibirica Du Tour. The chemical composition of the phenolic compounds of cedar wood was studied, including the structure of oligomeric polyphenols.

The yields of extractives extracted with ethyl acetate and water from cedar wood were 1.6 and 2.71% of a.s. (absolutely dry matter). The content of phenolic compounds in the ethyl acetate extract of cedar wood was 45.9% rel.

Based on 1H and 13C NMR spectroscopy data, it was found that the main monomeric phenolic extractive substances of cedar wood are stilbene – pinosilvin monomethyl ether (content in cedar wood 0.25% of a.s.) and flavonoids – tectochrizin, pinocembrin, and pinobankxin, as well as oligomeric and polymeric phenolic compounds. It was shown that the composition of cedar wood oligomers includes a complex mixture of stilbene derivatives of pinosilvin and flavonoids with the inclusion of carbohydrate residues. The content of the fraction of oligomeric and polymeric phenolic compounds in cedar wood is 0.39% of a.s.

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Author Biographies

Tat'yana Yevgen'yevna Fedorova, A.E. Favorsky Irkutsk Institute of Chemistry SB RAS

кандидат химических наук, старший научный сотрудник лаборатории химии древесины

Sergey Vladimirovich Fedorov, A.E. Favorsky Irkutsk Institute of Chemistry SB RAS

кандидат химических наук, научный сотрудник лаборатории ядерного магнитного резонанса

 

Vasily Anatolyevich Babkin, A.E. Favorsky Irkutsk Institute of Chemistry SB RAS

доктор химических наук, профессор, заведующий лабораторией химии древесины

 

 

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Published
2020-10-22
How to Cite
1. Fedorova T. Y., Fedorov S. V., Babkin V. A. PHENOLIC COMPOUNDS OF CEDAR WOOD (SIBERIAN PINE) PINUS SIBIRICA DU TOUR. // chemistry of plant raw material, 2020. № 3. P. 97-104. URL: http://journal.asu.ru/cw/article/view/7329.
Issue
No 3 (2020)
Section
Low-molecular weight compounds

Copyright (c) 2020 chemistry of plant raw material

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