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lignine native

protolignin

agriculture, sylviculture et pêche - iate.europa.eu

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New insights into the structure and composition of technical lignins: a comparative characterisation study... Importantly, low amounts of β- ether linkages were found compared to literature values for protolignin and lignins obtained by other, milder isolation processes....

général - core.ac.uk - PDF: www.loc.gov

lignine native

native lignin

agriculture, sylviculture et pêche - iate.europa.eu

Une activité antioxydante stable et prévisible est obtenue en sélectionnant des dérivés de lignine native possédant ces plages spécifiques de teneurs en groupe hydroxyle aliphatique.

Stable and predictable antioxidant activity is provided by selecting for derivatives of native lignin having these specific ranges of aliphatic hydroxyl contents.

chimie - wipo.int

L’invention concerne un système en continu et en discontinu pour produire de la cellulose, de la lignine native et une protéine unicellulaire à partir de toute forme de végétation dans un procédé en circuit fermé.

A continuous and batch system to produce cellulose, native lignin and unicellular protein from any form of vegetation in a closed process.

industrie du bois - wipo.int

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Oxidative depolymerization of alkaline lignine and its valorization

... Les propriétés tensioactives et antioxydantes, mettant en avant la structure et les fonctions de la lignine, ont été comparées à celles de la lignine native et lignosulfonates....

... In this purpose, an oxidative depolymerization (by oxygen or air) of a lignoboost-type alkaline lignin have been realized to obtain lignin fraction enriched with carboxylic acid functions (the content of which is very low amount in the native lignin structure)....

commercialisation / production et structures agricoles / Europe - core.ac.uk -

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Photolytic c–o bond cleavage with quantum dots... Cadmium selenide quantum dots selectivelycleave C–O bonds with yields comparable to the best transition-metal-basedmolecular photocatalysts, thereby emulating depolymerization of theβ-O-4 linkages that account for 45–60% of all linkersin native lignin....

général - core.ac.uk - PDF: figshare.com

New preparations of lignin polymer models under conditions that approximate cell wall ligni fication. holzforschung 49:521–527... The linkage-of monolignol (DHP) type analysis by thioacidolysis indicates that the structure of these polylignols approximated that of Monolignol glucoside native lignin more closely than did the structure of polylignols prepared by the conventional method Coniferyl ulcohol from coniferyl alcohol....

PDF: www.fpl.fs.fed.us

Catalytic depolymerization of native and technical lignin into phenolic compounds using nickel catalyst... Herein, we have investigated the use of Ni/C for the catalytic depolymerization of native lignin in Miscanthus, a grassy biomass....

PDF: escholarship.org

Degradation of lignin-related compounds by actinomycetes... The relationships between these activities and the solubilization of native lignin are discussed

PDF: www.pubmedcentral.nih.gov

Trapping of p‑coumaryl andconiferyl alcohol during soda–anthraquinone treatment: a meansof estimating uncondensed β‑o‑4structures in native ligninIn most native lignins, at least 50% of the phenylpropane(C9) units are involved in β-O-4linkages.It...

PDF: figshare.com