Development of extraction methodology for identification of extractive-compounds indexing natural durability of selected wood species

Keržič, Eli (avtor), Humar, Miha (avtor), Oven, Primož (avtor), Vek, Viljem (avtor)

This study is concerned with establishing a uniform experimental protocol for the determination of phenolic extractives, which play an essential role in the durability of the wood of selected species included in the field tests. European larch (Larix decidua), Norway spruce (Picea abies), Scots pine (Pinus sylvestris), European oak (Quercus sp.), sweet chestnut (Castanea sativa), and black locust (Robinia pseudoacacia) were included in the study. Extraction yield data were collected for extraction in a Soxhlet apparatus using common polar extraction solvents (ethanol, acetone, methanol, water) and for single static extraction cycles in accelerated solvent extraction (ASE). The suitability of the solvents and the appropriate extraction conditions were evaluated based on the results of gravimetric analysis of hydrophilic extractives, spectrophotometric analysis of total phenols, and chromatographic analysis using high-performance liquid chromatography. Extraction in the ASE system with methanol proved to be a quick and accurate way to prepare samples for chemical analysis of extractives of selected wood species. With the chemical monitoring of targeted phenolic extractives in wood subjected to leaching, we propose a novel protocol suitable also for measuring the effects of weathering on the natural durability of wood in future studies.

• Jezik: Angleški jezik
• Ključne besede: extraction from wood, phenolic extractives, natural durability, extractive leaching
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 1940-1950
• Številčenje: Vol. 18, no. 6
• PID: 20.500.12556/RUL-146655
• UDK: 630*8
• ISSN pri članku: 1748-0280
• DOI: 10.1080/17480272.2023.2207529
• COBISS.SI-ID: 151491331
• Datum objave v RUL: 05.06.2023

Gradivo je del revije

• Naslov: Wood material science & engineering
• Skrajšan naslov: Wood mater. sci. eng
• Založnik: Taylor & Francis
• ISSN: 1748-0280
• COBISS.SI-ID: 522172953

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: ekstrakcija lesa, fenolni ekstraktivi, naravna odpornost, izpiranje ekstraktivov