用色谱法和高分辨率四极杆飞行时间质谱法区分原生和人工种植的红木木材

IF 0.8 4区 工程技术 Q3 FORESTRY
Joseph Doh Wook Kim, P. Brunswick, D. Shang, P. Evans
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引用次数: 0

摘要

来自斐济的人工种植桃花心木(Swietenia macrophylla)被首选为制作电吉他的可持续木材来源,因为其贸易不受《濒危野生动植物种国际贸易公约》(CITES)的限制,而大叶S.macrophyla则来自原生森林。区分这两种木材类型的能力将阻止非法收获的本地种植的大叶藻出售给制琴师和其他工匠。木材的化学成分受形成时代和地理因素的影响,不同地区生长的大叶藻之间存在化学差异。本研究测试了高分辨率质谱法将人工种植的斐济大叶藻与从原生森林中获得的相同木材物种进行化学型区分的能力。提取了两种木材类型的多个心材样本,并使用气相色谱和液相色谱-串联高分辨率四极杆荧光时间质谱法(GC/QToF,LC/QToF)进行色谱分析。质谱离子的视觉比较,以及现代分析数据挖掘技术,被用来筛选结果。95%置信椭圆的主成分分析散点图显示,通过GC/LC/QToF,两种木材类型明确分离。我们的结论是,使用高分辨率质谱法筛选心材提取物提供了一种有效的方法,可以从原生林中生长的木材中鉴定和分离人工种植的斐济大叶藻。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DISTINGUISHING NATIVE AND PLANTATION-GROWN MAHOGANY (SWIETENIA MACROPHYLLA) TIMBER USING CHROMATOGRAPHY AND HIGH-RESOLUTION QUADRUPOLE TIME-OF-FLIGHT MASS SPECTROMETRY
. Plantation-grown mahogany ( Swietenia macrophylla ) from Fiji has been preferred as a sustainable wood source for the crafting of electric guitars because its trade is not restricted by Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), unlike S. macrophylla sourced from native forests. Ability to differentiate between the two wood types would deter sale of illegally harvested native-grown S. macrophylla to luthiers and other artisans. The chemical composition of wood is in fl uenced by cambial age and geographical factors, and there are chemical differences between S. macrophylla grown in different regions. This study tested the ability of high-resolution mass spectrometry to chemotypically differentiate plantation-grown Fijian S. macrophylla from the same wood species obtained from native forests. Multiple heartwood specimens of both wood types were extracted and chromatographically pro fi led using gas and liquid chromatography tandem high-resolution quadrupole time-of-fl ight mass spectrometry (GC/QToF, LC/QToF). Visual comparison of mass spectral ions, together with modern analytical data-mining techniques, were employed to screen the results. Principal component analysis scatter plots with 95% con fi dence ellipses showed unambiguous separation of the two wood types by GC/LC/QToF. We conclude that screening of heartwood extractives using high-resolution mass spectrometry offers an effective way of identifying and sepa-rating plantation-grown Fijian S. macrophylla from wood grown in native forests.
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来源期刊
Wood and Fiber Science
Wood and Fiber Science 工程技术-材料科学:纺织
CiteScore
7.50
自引率
0.00%
发文量
23
审稿时长
>12 weeks
期刊介绍: W&FS SCIENTIFIC ARTICLES INCLUDE THESE TOPIC AREAS: -Wood and Lignocellulosic Materials- Biomaterials- Timber Structures and Engineering- Biology- Nano-technology- Natural Fiber Composites- Timber Treatment and Harvesting- Botany- Mycology- Adhesives and Bioresins- Business Management and Marketing- Operations Research. SWST members have access to all full-text electronic versions of current and past Wood and Fiber Science issues.
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