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来自葡萄牙森林的松香呈现出树脂酸的规则分布。

Rosin from Portuguese forests shows a regular profile of resin acids.

作者信息

Pinheiro Ângela, Martins Isabel, Bento Artur, Escórcio Rita, Nunes Carolina, Varela Adélia, Nunes João, Afonso Carlos A M, Silva Pereira Cristina

机构信息

Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Oeiras, Portugal.

Association BLC3 - Technology and Innovation Campus, Centre Bio R&D Unit, Rua Nossa Senhora da Conceição n2, Oliveira do Hospital, Portugal.

出版信息

Front Plant Sci. 2023 Oct 26;14:1268887. doi: 10.3389/fpls.2023.1268887. eCollection 2023.

DOI:10.3389/fpls.2023.1268887
PMID:37965022
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10640998/
Abstract

forestry occupies >20% of the forest ecosystem area in the continental territory of Portugal with a high impact on the national economy. This species' major derived non-wood product is oleoresin, the raw material for rosin production. Rosin comprises mainly a blend of resin acids and has broad industrial and pharmaceutical applications. Oleoresin production in Portugal has been progressively reduced due to low-cost producers in other countries; currently, it reaches only 2% of the existing trees. To support this value chain, the chemical fingerprint of rosin derived from the national forest requires focused analysis. In the present study, we collected oleoresin within seven geographically distinct pure forests in two consecutive collection years. A high-resolution nuclear magnetic resonance (NMR) method was used to quantify the diversity of resin acids in the corresponding rosin samples. Overall, the acquired data highlighted that the profile of resin acids in rosin produced in Portugal is highly regular, regardless of the forest location, having as the major constituents abietic acid and dehydroabietic acid. The diversity of resin acids is possibly influenced, to a minor extent, by some edaphoclimatic factors.

摘要

林业在葡萄牙大陆领土的森林生态系统面积中占比超过20%，对国民经济有重大影响。该物种主要的非木材衍生产品是松脂，它是松香生产的原料。松香主要由树脂酸混合物组成，具有广泛的工业和医药应用。由于其他国家的低成本生产者，葡萄牙的松脂产量已逐渐减少；目前，其产量仅占现有树木的2%。为了支持这一价值链，需要对源自该国森林的松香的化学指纹进行重点分析。在本研究中，我们在连续两个采集年份里，从七个地理上不同的纯林中采集了松脂。采用高分辨率核磁共振（NMR）方法对相应松香样品中树脂酸的多样性进行定量分析。总体而言，所获得的数据突出表明，无论森林位置如何，葡萄牙生产的松香中树脂酸的谱图都非常规律，主要成分是枞酸和脱氢枞酸。树脂酸的多样性可能在较小程度上受到一些土壤气候因素的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/56dc58bbfecb/fpls-14-1268887-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/9d752a1f4964/fpls-14-1268887-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/a5d2fb077440/fpls-14-1268887-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/abac51ece4d8/fpls-14-1268887-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/c36f1850be5c/fpls-14-1268887-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/9fa1b913ee30/fpls-14-1268887-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/56dc58bbfecb/fpls-14-1268887-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/9d752a1f4964/fpls-14-1268887-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/a5d2fb077440/fpls-14-1268887-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/abac51ece4d8/fpls-14-1268887-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/c36f1850be5c/fpls-14-1268887-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/9fa1b913ee30/fpls-14-1268887-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d728/10640998/56dc58bbfecb/fpls-14-1268887-g006.jpg

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Resin acids as inducible chemical defences of pine seedlings against chewing insects.树脂酸作为诱导松树苗抵御咀嚼昆虫的化学防御物质。
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