Determination of Carvacrol Content in Alaska Yellow Cedar (Callitropsis nootkatensis) Extractives

Shahlinney Lipeh; Laurence R Schimleck; Jeffrey J Morrell

doi:10.15376/biores.14.4.9928-9944

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Determination of Carvacrol Content in Alaska Yellow Cedar (Callitropsis nootkatensis) Extractives

Journal article

Open access

Peer reviewed

Determination of Carvacrol Content in Alaska Yellow Cedar (Callitropsis nootkatensis) Extractives

Shahlinney Lipeh, Laurence R Schimleck and Jeffrey J Morrell

BioResources, Vol.14(4), pp.9928-9944

2019

DOI: https://doi.org/10.15376/biores.14.4.9928-9944

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Abstract

Alaska yellow cedar

heartwood

durability

carvacrol

infrared spectroscopy

ATR-FTIR

NIR

Extractives, such as carvacrol, play a major role in the durability of Alaska yellow cedar (Callitropsis nootkatensis) heartwood. However, it is a slow and complicated process to identify the levels of these compounds in individual timbers. This study investigated the feasibility of attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy and near-infrared (NIR) spectroscopy, coupled with hierarchical cluster analysis (HCA) and principal component analysis (PCA), for detecting carvacrol in wood. Alaska yellow cedar was extracted using sequential Soxhlet extraction with toluene-ethanol, followed by ethanol and hot water. The extracted samples were milled, and the powders were treated with different concentrations of carvacrol. The spectral analysis of the wood that contained carvacrol was conducted using ATR-FTIR and NIR spectroscopy, and the peaks indicative of carvacrol were identified. The chemometric analysis on the spectral data using PCA and HCA distinguished the wood with high (> 34%) and low (< 3.5%) carvacrol concentrations. The results suggest that infrared spectroscopy can be a non-destructive tool for the qualitative and quantitative evaluation of extractives, and possibly for the rapid assessment of Alaska yellow cedar durability.

Details

Title: Determination of Carvacrol Content in Alaska Yellow Cedar (Callitropsis nootkatensis) Extractives
Authors: Shahlinney Lipeh (Author) - Oregon State University, United States
Laurence R Schimleck (Author) - Oregon State University, United States
Jeffrey J Morrell (Author) - University of the Sunshine Coast
Publication details: BioResources, Vol.14(4), pp.9928-9944
Publisher: North Carolina State University - College of Natural Resources
Date published: 2019
DOI: 10.15376/biores.14.4.9928-9944
ISSN: 1930-2126; 1930-2126
Organisation Unit: University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life; Forest Research Institute
Language: English
Record Identifier: 99451415202621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Materials Science, Paper & Wood