Image2_One-Pot Enzymatic Production of Lignin-Composites.tif
A novel and efficient one-pot system for green production of artificial lignin bio-composites has been developed. Monolignols such as sinapyl (SA) and coniferyl (CA) alcohols were linked together with caffeic acid (CafAc) affording a polymeric network similar with natural lignin. The interaction of the dissolved SA/CA with CafAc already bound on a solid support (SC2/SC6-CafAc) allowed the attachment of the polymeric product direct on the support surface (SC2/SC6-CafAc-L1 and SC2/SC6-CafAc-L2, from CA and SA, respectively). Accordingly, this procedure offers the advantage of a simultaneous polymer production and deposition. Chemically, oxi-copolymerization of phenolic derivatives (SA/CA and CAfAc) was performed with H2O2 as oxidation reagent using peroxidase enzyme (2-1B mutant of versatile peroxidase from Pleurotus eryngii) as catalyst. The system performance reached a maximum of conversion for SA and CA of 71.1 and 49.8%, respectively. The conversion is affected by the system polarity as resulted from the addition of a co-solvent (e.g., MeOH, EtOH, or THF). The chemical structure, morphology, and properties of the bio-composites surface were investigated using different techniques, e.g., FTIR, TPD-NH3, TGA, contact angle, and SEM. Thus, it was demonstrated that the SA monolignol favored bio-composites with a dense polymeric surface, high acidity, and low hydrophobicity, while CA allowed the production of thinner polymeric layers with high hydrophobicity.
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References
- https://doi.org//10.1002/cssc.201700082
- https://doi.org//10.1016/j.jaap.2013.05.016
- https://doi.org//10.1016/j.eurpolymj.2016.01.015
- https://doi.org//10.1021/acssuschemeng.6b00903
- https://doi.org//10.1021/sc4000835
- https://doi.org//10.1016/j.compscitech.2012.01.013
- https://doi.org//10.1007/978-94-007-2488-4_20
- https://doi.org//10.1002/masy.201400157
- https://doi.org//10.1042/BJ20111199
- https://doi.org//10.1016/j.indcrop.2003.10.008
- https://doi.org//10.1016/j.indcrop.2004.04.015
- https://doi.org//10.1016/B978-0-08-100085-4.00001-3
- https://doi.org//10.1002/pat.803
- https://doi.org//10.1016/j.jbiotec.2016.11.016
- https://doi.org//10.1016/j.biortech.2013.06.045
- https://doi.org//10.1023/A:1021070006895
- https://doi.org//10.1016/j.indcrop.2013.01.040
- https://doi.org//10.1128/AEM.00490-14
- https://doi.org//10.1016/j.enzmictec.2015.03.004
- https://doi.org//10.1016/j.carbpol.2011.11.041
- https://doi.org//10.1002/cssc.201402314
- https://doi.org//10.1016/j.crci.2017.09.002
- https://doi.org//10.1016/j.jcat.2016.04.002
- https://doi.org//10.1021/acscatal.6b02915
- https://doi.org//10.1590/S1516-14392013005000112
- https://doi.org//10.1063/1.3639297
- https://doi.org//10.1016/j.matchemphys.2012.11.054
- https://doi.org//10.1016/j.polymer.2004.03.098
- https://doi.org//10.1007/s11029-013-9330-x
- https://doi.org//10.1039/c3gc42131g
- https://doi.org//10.1016/j.btre.2014.12.011
- https://doi.org//10.1007/s00226-015-0772-2
- https://doi.org//10.1002/pc.10252
- https://doi.org//10.1016/S0076-6879(99)99017-1
- https://doi.org//10.1021/sc3001492
- https://doi.org//10.1016/j.indcrop.2007.07.008
- https://doi.org//10.3390/ma9070517
- https://doi.org//10.1021/sc500087z
- https://doi.org//10.1163/092764409X12477479344485
- https://doi.org//10.1074/jbc.M502123200
- https://doi.org//10.1016/j.indcrop.2007.07.011
- https://doi.org//10.1016/j.indcrop.2015.05.021
- https://doi.org//10.1271/bbb.61.1909
- https://doi.org//10.15376/biores.7.4.5737-5748
- https://doi.org//10.1021/cr900354u
- https://doi.org//10.1021/cr068035q
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Categories
- Geochemistry
- Biochemistry
- Organic Chemistry
- Medical Biochemistry: Proteins and Peptides (incl. Medical Proteomics)
- Nuclear Chemistry
- Medical Biochemistry and Metabolomics not elsewhere classified
- Analytical Biochemistry
- Cell Neurochemistry
- Physical Organic Chemistry
- Enzymes
- Organic Green Chemistry
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