Biomimetic Vanadate and Molybdate Systems for Oxidative Upgrading of Iono- and Organosolv Hard- and Softwood Lignins

Lucía Penín; Matteo Gigli; Federica Sabuzi; Valentín Santos; Pierluca Galloni; Valeria Conte; Juan Carlos Parajó; Heiko Lange; Claudia Crestini

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2021.0154

Published Article

LAPSE:2021.0154

Biomimetic Vanadate and Molybdate Systems for Oxidative Upgrading of Iono- and Organosolv Hard- and Softwood Lignins

Lucía Penín, Matteo Gigli, Federica Sabuzi, Valentín Santos, Pierluca Galloni, Valeria Conte, Juan Carlos Parajó, Heiko Lange, Claudia Crestini

April 16, 2021

Recently reported acetosolv soft- and hardwood lignins as well as ionosolv soft- and hardwood lignins were transformed into monomeric aromatic compounds using either a vanadate or a molybdate-based catalyst system. Monomers were generated with remarkable, catalyst-dependent selectivity and high depolymerisation yields via oxidative exo- and endo-depolymerisation processes. Using the vanadate−hydrogen peroxide system on acetosolv pine lignin, vanillin and isovanillin were produced as main products with depolymerisation yields of 31%. Using the molybdate system on acetosolv and ionosolv lignin, vanillic acid was the practically exclusive product, with depolymerisation yields of up to 72%. Similar selectivities, albeit with lower depolymerisation yields of around 50% under standardised conditions, were obtained for eucalyptus acetosolv lignin, producing vanillin and syringaldehyde or vanillic acid as products, by using the vanadate- or the molybdate-based systems respectively.

Record ID

LAPSE:2021.0154

Keywords

biomimetic, catalytic lignin oxidation, ionosolv, lignin, molybdate, organosolv, oxidative lignin upgrade, vanadate

Subject

Food & Agricultural Processes

Suggested Citation

Penín L, Gigli M, Sabuzi F, Santos V, Galloni P, Conte V, Parajó JC, Lange H, Crestini C. Biomimetic Vanadate and Molybdate Systems for Oxidative Upgrading of Iono- and Organosolv Hard- and Softwood Lignins. (2021). LAPSE:2021.0154

Author Affiliations

Penín L: Chemical Engineering Department, Polytechnical Building, University of Vigo (Campus Ourense), As Lagoas, 32004 Ourense, Spain
Gigli M: Department of Molecular Science and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30170 Venice Mestre, Italy; CSGI—Center for Colloid and Surface Science, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy [ORCID]
Sabuzi F: Department of Chemical Science and Technologies, University of Rome ‘Tor Vergata’, Via della Ricerca Scientifica, 00133 Rome, Italy [ORCID]
Santos V: Chemical Engineering Department, Polytechnical Building, University of Vigo (Campus Ourense), As Lagoas, 32004 Ourense, Spain [ORCID]
Galloni P: Department of Chemical Science and Technologies, University of Rome ‘Tor Vergata’, Via della Ricerca Scientifica, 00133 Rome, Italy [ORCID]
Conte V: Department of Chemical Science and Technologies, University of Rome ‘Tor Vergata’, Via della Ricerca Scientifica, 00133 Rome, Italy [ORCID]
Parajó JC: Chemical Engineering Department, Polytechnical Building, University of Vigo (Campus Ourense), As Lagoas, 32004 Ourense, Spain
Lange H: CSGI—Center for Colloid and Surface Science, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy; Department of Pharmacy, University of Naples ‘Federico II’, Via Domenico Montesano 49, 80131 Naples, Italy [ORCID]
Crestini C: Department of Molecular Science and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30170 Venice Mestre, Italy; CSGI—Center for Colloid and Surface Science, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy [ORCID]

Journal Name

Processes

Volume

8

Issue

9

Article Number

E1161

Year

2020

Publication Date

2020-09-16