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Title:Polifenoli v različnih vrstah macesna (Larix spp.)
Authors:ID Zule, Janja (Author)
ID Kozjan, Gašper (Author)
Files:.pdf PDF - Presentation file, download (646,56 KB)
MD5: F89A249640519120CF3650CF9DCFA1E4
PID: 20.500.12556/dirros/b757ffcf-c821-4420-b735-9a0ecfd17629
 
Language:Slovenian
Typology:1.02 - Review Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:V članku so predstavljene različne vrste polifenolnih spojin, kot so npr. lignani, oligolignani in flavonoidi, ki jih najdemo v tkivih macesnov, to je dreves iz rodu Larix. Opisana je njihova biosinteza, kemijska struktura in lastnosti, med katerimi je poudarjen predvsem njihov antioksidativni potencial. Predstavljene so metode kvantitativne izolacije iz drevesnih tkiv in kemijske karakterizacije z uporabo sodobnih kromatografskih analiznih tehnik. Raziskave so pokazale, da so največje koncentracije lignanov in flavonoidov v grčah, vejah in skorji dreves. Najpomembnejši med flavonoidi v tkivih macesnov je taksifolin. Glavni predstavnik lignanov, ki jih bomo našli predvsem v grčah, je sekoizolaricirezinol, poleg njega pa sta zastopana tudi laricirezinol in ciklolaricirezinol. Polifenoli so ključnega pomena za obstojnost lesa, saj pomenijo učinkovito kemijsko zaščito pred različnimi okužbami. Zaradi visokih koncentracij bioaktivnih lignanov v grčah iglavcev bi slednje lahko rabile kot vir za tehnološko pridobivanje teh dragocenih komponent.
Keywords:macesen, Larix spp., polifenoli, lignani, oligolignani, flavonoidi, obstojnost lesa, antioksidativne lastnosti, kemijska karakterizacija
Publication status:Published
Publication version:Version of Record
Year of publishing:2008
Number of pages:str. 51-58
Numbering:Vol. 86
PID:20.500.12556/DiRROS-7702 New window
UDC:630*81:630*17(045)=163.6
ISSN on article:0351-3114
URN:URN:NBN:SI:doc-9E0MYI4L
COBISS.SI-ID:2311078 New window
Publication date in DiRROS:12.07.2017
Views:5236
Downloads:2056
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Record is a part of a journal

Title:Zbornik gozdarstva in lesarstva. forest and wood science & technology
Shortened title:Zb. gozd. lesar.
Publisher:Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0351-3114
COBISS.SI-ID:6206978 New window

Secondary language

Language:Undetermined
Title:Polyphenols in different larch (Larix spp.) species
Abstract:Various types of polyphenolic compounds, such as lignans, oligolignans and flavonoids, which occur in different tissues of wood from the larch (Larix) genus, are presented in the article. Their biosynthesis, chemical structure and properties, including a distinctive antioxidative potential, are described. The methods of quantitative isolation from wood as well as their chemical characterization by means of sophisticated chromatographic analytical techniques are presented. It has been experimentally established that the highest concentrations of lignans and flavonoids are present in knots, branches and bark of trees. The most important flavonoid in larch tissues is taksifolin, while the predominating lignans in knots are secoisolariciresinol and less abundant lariciresinol and cycloisolariciresinol. The presence of polyphenols is crucial for wood durability, as these compounds represent efficient chemical protection of wood against biological decay. Due to high concentrations of bioactive lignans in knots of conifers, the latter represent a suitable source for technological production of valuable substances.
Keywords:larch, Larix spp., polyphenols, lignans, oligolignans, flavonoids, wood durability, antioxidative properties, chemical characterization


Collection

This document is a part of these collections:
  1. Acta Silvae et Ligni

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