Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/74212Registo completo
| Campo DC | Valor | Idioma |
|---|---|---|
| dc.contributor.author | Li, Nannan | por |
| dc.contributor.author | Su, Jing | por |
| dc.contributor.author | Wang, Hongbo | por |
| dc.contributor.author | Cavaco-Paulo, Artur | por |
| dc.date.accessioned | 2021-10-04T09:11:18Z | - |
| dc.date.issued | 2021-12 | - |
| dc.identifier.citation | Li, Nannan; Jing Su; Wang, Hongbo; Cavaco-Paulo, Artur, Production of antimicrobial powders of guaiacol oligomers by a laccase-catalyzed synthesis reaction. Process Biochemistry, 111, Part 1, 213-220, 2021 | por |
| dc.identifier.issn | 1359-5113 | por |
| dc.identifier.uri | https://hdl.handle.net/1822/74212 | - |
| dc.description | Journal pre-proofs | por |
| dc.description.abstract | Guaiacol oligomers were synthesized by enzyme-catalyzed polymerization with laccase as the catalyst. The polymerization procedure in aqueous media was followed by UV-Vis spectra. The oligomers were characterized by NMR and MALDI-TOF spectra. The UV-Vis spectra observation showed a new peak formed in the range of 380-530nm indicating that new substances formed. The NMR results indicated that phenolic hydroxyl participated in the polymerization. The MALDI-TOF spectra revealed the weight average polymerization degree of guaiacol oligomers is 10 and the mass of the repeating unit is 122. The thermal stability was studied by TGA/DSC analysis. Guaiacol oligomers were more thermally stable than guaiacol, which can be ascribed to the long -conjugated chains. Antioxidant behavior based on ABTS.+ radical showed a concentration-dependent activity and reached a plateau at 800g/mL. The prepared guaiacol oligomers displayed antimicrobial activity against Staphylococcus aureus and Escherichia coli, in which the inhibition percentage is up to 99%. | por |
| dc.description.sponsorship | “Postgraduate Research & Practice Innovation Program of Jiangnan University” (1062050205198131, JNKY19_036), National Natural Science Foundation of China (No. 52003108), the Fundamental Research Funds for the Central Universities (No. JUSRP121027). This work was also supported by National Key R&D Program of China (No. 2019YFA0706900), China Postdoctoral Science Foundation (No. 2019T120390) and Jiangsu provincial policy guidance program (No. BZ2020010) | por |
| dc.language.iso | eng | por |
| dc.publisher | Elsevier 1 | por |
| dc.rights | restrictedAccess | por |
| dc.subject | Laccase catalysis | por |
| dc.subject | Polymerization | por |
| dc.subject | Guaiacol oligomers | por |
| dc.subject | Antimicrobial agent | por |
| dc.title | Production of antimicrobial powders of guaiacol oligomers by a laccase-catalyzed synthesis reaction | por |
| dc.type | article | - |
| dc.peerreviewed | yes | por |
| dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S1359511321002300 | por |
| dc.comments | CEB54601 | por |
| oaire.citationStartPage | 213 | por |
| oaire.citationEndPage | 220 | por |
| oaire.citationConferencePlace | United Kingdom | - |
| oaire.citationVolume | 111, Part 1 | por |
| dc.date.updated | 2021-10-03T09:55:08Z | - |
| dc.identifier.doi | 10.1016/j.procbio.2021.07.018 | por |
| dc.date.embargo | 10000-01-01 | - |
| dc.subject.fos | Ciências Médicas::Biotecnologia Médica | por |
| dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | - |
| dc.subject.wos | Science & Technology | por |
| sdum.journal | Process Biochemistry | por |
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| document_54601_1.pdf Acesso restrito! | 3,33 MB | Adobe PDF | Ver/Abrir |
