Personne
Ydna Marie Questell-Santiago
Cette personne n’est plus à l’EPFL
Publications associées (11)
Catalyst Evolution Enhances Production of Xylitol from Acetal-Stabilized Xylose
Jeremy Luterbacher, Masoud Talebi Amiri, Ydna Marie Questell-Santiago, Benjamin Pierre Le Monnier, Jher Hau Yeap
We demonstrate a catalytic process for xylitol production based on the volatility and unique reactivity of diformylxylose (DFX), which can be produced at near theoretical yield from biomass and, contrary to xylose, can be easily purified by distillation. T ...
2020Stabilization strategies in biomass depolymerization using chemical functionalization
Jeremy Luterbacher, Ydna Marie Questell-Santiago
A central feature of most lignocellulosic-biomass-valorization strategies is the depolymerization of all its three major constituents: cellulose and hemicellulose to simple sugars, and lignin to phenolic monomers. However, reactive intermediates, generally ...
NATURE PUBLISHING GROUP2020Catalytic valorization of the acetate fraction of biomass to aromatics and its integration into the carboxylate platform
Jeremy Luterbacher, Masoud Talebi Amiri, Ydna Marie Questell-Santiago, Benjamin Pierre Le Monnier, Jher Hau Yeap, Bartosz Rozmyslowicz, Ahmed Mohamed Ibrahim Elkhaiary
In many plant species, the acetate fraction is the fourth most prominent fraction by weight after cellulose, hemicellulose and lignin, and can be easily extracted as a single stable molecule, acetic acid, at high yields. Despite this, upgrading the acetate ...
2019Production, characterization and upgrading of biomass-derived acetal-stabilized carbohydrates
Biomass is an attractive source of renewable carbon-based fuels and chemicals. Multiple research efforts are centered around integrated biorefineries, where all fractions of biomass are converted to fuels or chemical products. These efforts are focused aro ...
EPFL2019Fractionation of lignocellulosic biomass to produce uncondensed aldehyde-stabilized lignin
Jeremy Luterbacher, Masoud Talebi Amiri, Ydna Marie Questell-Santiago, Graham Reid Dick
Lignin is one of the most promising sources of renewable aromatic hydrocarbons. Current methods for its extraction from lignocellulosic biomass—which include the kraft, sulfite, and organosolv processes—result in the rapid formation of carbon–carbon bonds, ...
2019Establishing Lignin Structure-Upgradeability Relationships Using Quantitative 1H-13C Heteronuclear Single Quantum Coherence Nuclear Magnetic Resonance (HSQC-NMR) Spectroscopy
Jeremy Luterbacher, Masoud Talebi Amiri, Ydna Marie Questell-Santiago, Stefania Bertella
Lignin depolymerization could provide an attractive renewable aromatic feedstock for the chemical industry. Past studies have suggested that lignin structural features such as ether content are correlated to lignin’s upgradeability. An obstacle to the deve ...
2019Carbohydrate stabilization extends the kinetic limits of chemical polysaccharide depolymerization
Jeremy Luterbacher, Masoud Talebi Amiri, Ydna Marie Questell-Santiago, Raquel Zambrano Varela
Polysaccharide depolymerization is an essential step for valorizing lignocellulosic biomass. In inexpensive systems such as pure water or dilute acid mixtures, carbohydrate monomer degradation rates exceed hemicellulose—and especially cellulose—depolymeriz ...
2018Introduction to High Pressure CO2 and H2O Technologies in Sustainable Biomass Processing
Jeremy Luterbacher, Ydna Marie Questell-Santiago
Biomass is an attractive source of renewable carbon-based fuels and chemicals and their production is envisaged within the framework of integrated biorefineries. Multiple research efforts to make biorefineries more economically competitive and sustainable ...
The Royal Society of Chemistry2017A mild biomass pretreatment using gamma-valerolactone for concentrated sugar production
Jeremy Luterbacher, Ydna Marie Questell-Santiago, Li Shuai
Here we report that gamma-valerolactone (GVL), a biomass-derived solvent, can be used to facilitate the mild pretreatment of lignocellulosic biomass. An 80% GVL, 20% water solvent system was used to pretreat hardwood at the mild temperature of 120 degrees ...
Royal Society of Chemistry2016Formaldehyde stabilization facilitates lignin monomer production during biomass depolymerization
Yiming Li, Jeremy Luterbacher, Masoud Talebi Amiri, Florent Emmanuel Héroguel, Ydna Marie Questell-Santiago, Li Shuai
Practical, high-yield lignin depolymerization methods could greatly increase biorefinery productivity and profitability. However, development of these methods is limited by the presence of interunit carbon-carbon bonds within native lignin, and further by ...
American Association for the Advancement of Science2016