Evidence map›Paper›PMID 32395900›Full record

ArticleChemSusChem2020

Lignin from Tree Barks: Chemical Structure and Valorization.

Duarte M Neiva, Jorge Rencoret, Gisela Marques, Ana Gutiérrez, Jorge Gominho, Helena Pereira, José C Del Río

Open access · hybridAbstract read
In one paragraph

Article in ChemSusChem, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 80 citations in OpenAlex.

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  7. Ethnopharmacology ofFrontiers in pharmacology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Duarte M NeivaDepartment of Plant Biotechnology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Av. Reina Mercedes, 10, 41012-, Seville, Spain.ORCID http://orcid.org/0000-0002-5913-5976
Jorge RencoretDepartment of Plant Biotechnology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Av. Reina Mercedes, 10, 41012-, Seville, Spain.ORCID http://orcid.org/0000-0003-2728-7331
Gisela MarquesDepartment of Plant Biotechnology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Av. Reina Mercedes, 10, 41012-, Seville, Spain.ORCID http://orcid.org/0000-0002-6431-8267
Ana GutiérrezDepartment of Plant Biotechnology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Av. Reina Mercedes, 10, 41012-, Seville, Spain.ORCID http://orcid.org/0000-0002-8823-9029
Jorge GominhoCentro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisboa, Portugal.ORCID http://orcid.org/0000-0003-3419-6075
Helena PereiraCentro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisboa, Portugal.ORCID http://orcid.org/0000-0002-5393-4443
José C Del RíoDepartment of Plant Biotechnology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Av. Reina Mercedes, 10, 41012-, Seville, Spain.ORCID http://orcid.org/0000-0002-3040-6787
Instituto de Recursos Naturales y Agrobiología de Sevilla · ESUniversity of Lisbon · PT

Funding

Agencia Estatal de Investigación AGL2017-83036-RFundação para a Ciência e a Tecnologia PD/BD/52697/2014Fundação para a Ciência e a Tecnologia UID/AGR/00239/2013UID/AGR/00239/2013 PD/BD/52697/2014
6 · The paper itself

Abstract

Lignins from different tree barks, including Norway spruce (Picea abies), eucalyptus (Eucalyptus globulus), mimosa (Acacia dealbata) and blackwood acacia (A. melanoxylon), are thoroughly characterized. The lignin from E. globulus bark is found to be enriched in syringyl (S) units, with lower amounts of guaiacyl (G) and p-hydroxyphenyl (H) units (H/G/S ratio of 1:26:73), which produces a lignin that is highly enriched in β-ether linkages (83 %), whereas those from the two Acacia barks have similar compositions (H/G/S ratio of ≈5:50:45), with a predominance of β-ethers (73-75 %) and lower amounts of condensed carbon-carbon linkages; the lignin from A. dealbata bark also includes some resorcinol-related compounds, that appear to be incorporated or intimately associated to the polymer. The lignin from P. abies bark is enriched in G units, with lower amounts of H units (H/G ratio of 14:86); this lignin is thus depleted in β-O-4' alkyl-aryl ether linkages (44 %) and enriched in condensed linkages. Interestingly, this lignin contains large amounts of hydroxystilbene glucosides that seem to be integrally incorporated into the lignin structure. This study indicates that lignins from tree barks can be seen as an interesting source of valuable phenolic compounds. Moreover, this study is useful for tailoring conversion technologies for bark deconstruction and valorization.

Indexed as

EthersEucalyptusGas Chromatography-Mass SpectrometryGlucosidesLigninMolecular StructurePhenolPiceaPlant BarkPlant ExtractsSolventsStilbestrolsEthersGlucosidesLigninPhenolPlant ExtractsSolventsStilbestrolsbiomassNMR spectroscopyphenolpyrolysisrenewable resources

Identifiers

PMID32395900
PMCPMC7540371
OpenAlexW3024256800

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.