| Naslov: | Effect of phenolic anchor groups on enzymatic polymerization of coniferyl alcohol at cellulosic interfaces |
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| Avtorji: | ID Elschner, Thomas (Avtor)
ID Schönrich, Jakob (Avtor)
ID Bračič, Matej (Avtor)
ID Maver, Tina (Avtor)
ID Maver, Uroš (Avtor)
ID Fischer, Steffen (Avtor) |
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| Datoteke: |  RAZ_Elschner_Thomas_2025.pdf (1,95 MB)
MD5: FA1494DB95BA689968815B71B6695B4F
 https://doi.org/10.1038/s41598-025-18530-9
https://www.nature.com/articles/s41598-025-18530-9
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Znanstveno delo |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | MF - Medicinska fakulteta
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| Opis: | The chemical recalcitrance of lignin limits the industrial processing of biomass, which could be addressed by so-called designer lignins. Dehydrogenation polymers (DHPs) formed by artificial lignification of monolignols, enable studies on structure-property relationships independently of genetic information. Thin films of phenolic acid esters of cellulose were prepared and used for quartz crystal microbalance with dissipation monitoring (QCM-D) experiments to investigate surface polymerization in real-time. The phenolic anchor groups significantly influenced lignification speed, deposited mass, and rigidity of resulting DHP layers. Linkage types in the lignin structure were quantified by HSQC NMR spectroscopy. Polymerization efficiency was increased in the order ferulate < p-coumarate < caffeate. Among the tested anchors, protocatechuate groups were excellently performing the reaction, while vanillate and p-hydroxybenzoate led to minimal deposition of DHPs. Lignification behavior could be correlated with radical stability of phenolic anchor groups and the formation of benzodioxane structures of caffeate moieties. The presence of caffeate units that undergo trapping reaction, prevents cross-linking of cell wall components and enhances digestibility. Moreover, the benzodioxane motif increased rigidity and linearity of lignin, which is advantageous for material science applications, e.g. for bio-based carbon fibers. |
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| Ključne besede: | artificial lignin, dehydrogenation polymerization, phenolic cellulose esters, QCM-D, thin films |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 07.07.2025 |
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| Datum sprejetja članka: | 02.09.2025 |
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| Datum objave: | 12.09.2025 |
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| Založnik: | Nature Portfolio |
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| Leto izida: | 2025 |
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| Št. strani: | Str. 1-10 |
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| Številčenje: | Letn. 15, št. članka 32471 |
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| PID: | 20.500.12556/DKUM-95355  |
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| UDK: | 620.1/.2 |
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| COBISS.SI-ID: | 248901891 |
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| DOI: | 10.1038/s41598-025-18530-9 |
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| ISSN pri članku: | 2045-2322 |
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| Datum objave v DKUM: | 15.09.2025 |
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| Število ogledov: | 111 |
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| Število prenosov: | 6 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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