Chemotaxonomic and anatomic wood species identification in bleached pulp: blind test and method validation

IF 2.2 3区农林科学 Q2 FORESTRY

Holzforschung Pub Date : 2024-07-31 DOI:10.1515/hf-2024-0025

Max L. Flaig, Jens Berger, Stephanie Helmling, Andrea Olbrich, Heinz J. Schaffrath, Daniel Zahn, Bodo Saake

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Abstract

This paper presents a comparative analysis of the blind test outcomes of two independent methods for the identification of tropical wood species in pulp and paper products. Both, the established anatomical and the relatively new chemotaxonomic method support the European Deforestation Regulation 2023/1115 (EUDR), which aims to ensure that only legally harvested timber that has not contributed to deforestation is traded in the EU. The blind test involved 570 decisions on 15 test sheets of 37 self-manufactured mixed tropical hardwood pulps and an industrial beech pulp, used as a matrix. Both detection techniques demonstrated robust performance with over 80 % hit rates. The results show that the synergies and combination of the strengths of both methods can be utilized and lead to even better combined performance. In order to establish the chemotaxonomic identification method as a complement to the conventional anatomy-based method, statistical analyses were performed to assess its intermediate precision between three different GC-MS systems. In most cases, the method gave consistent results independent of the instrument used.

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漂白纸浆中的化学分类学和解剖学木种鉴定：盲测和方法验证

本文比较分析了两种独立方法的盲测结果，用于鉴别纸浆和纸制品中的热带木材种类。成熟的解剖学方法和相对较新的化学分类学方法都支持欧洲森林砍伐法规 2023/1115 (EUDR)，该法规旨在确保只有合法采伐且未造成森林砍伐的木材才能在欧盟进行交易。盲测对 15 张测试纸进行了 570 次判定，测试纸包括 37 种自制混合热带硬木纸浆和一种工业用山毛榉纸浆（用作矩阵）。两种检测技术都表现出强劲的性能，命中率超过 80%。结果表明，可以利用两种方法的协同作用和优势组合，实现更好的综合性能。为了将化学分类鉴定方法确立为传统解剖学方法的补充，我们进行了统计分析，以评估其在三种不同气相色谱-质谱系统之间的中间精度。在大多数情况下，该方法都能提供一致的结果，与所使用的仪器无关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Holzforschung 工程技术-材料科学：纸与木材

CiteScore

4.60

自引率

4.20%

发文量

审稿时长

3.3 months

期刊介绍： Holzforschung is an international scholarly journal that publishes cutting-edge research on the biology, chemistry, physics and technology of wood and wood components. High quality papers about biotechnology and tree genetics are also welcome. Rated year after year as one of the top scientific journals in the category of Pulp and Paper (ISI Journal Citation Index), Holzforschung represents innovative, high quality basic and applied research. The German title reflects the journal''s origins in a long scientific tradition, but all articles are published in English to stimulate and promote cooperation between experts all over the world. Ahead-of-print publishing ensures fastest possible knowledge transfer.