BACKGROUND In higher plant cells, lignin provides necessary physical support for plant growth and resistance to attack by microorganisms. For the same reason, lignin is considered to be a major impediment to the process of deconstructing biomass to simple sugars by hydrolytic enzymes. The in situ variation of lignin in plant cell walls is important for better understanding of the roles lignin p...

So far, the possibility of synthesizing hydrogels based on multiple biopolymers has been investigated, and among them lignin proven to be one potentials for this purpose due advantages it offers. However, because its high molecular weight, steric hindrance few reactive sites structure, is sometimes necessary improve reactivity though chemical modifications. On basis previous results, two modifi...

Methods of chemical modification technical lignins for obtaining stabilizers and regulators rheological properties drilling fluids are considered

Lignins are complex aromatic heteropolymers that reinforce the cell walls of terrestrial plants. A new study identifies an ATP-binding cassette ABC transporter that pumps a monolignol lignin precursor across the plasma membrane.

5 White-Rot Basidiomycetes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 5.1 Mineralization of 14C-Labeled Lignins . . . . . . . . . . . . . . . . . . . . . . . 141 5.2 Ligninolytic Enzymes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 5.2.1 Lignin Peroxidase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 5.2.2 Manganese Perox...

An integrated lignin biorefinery process was studied by chemometrics. A regime for structurally preserved lignins with tuneable properties identified.

Pinus taeda wood chips were biotreated with Ceriporiopsis subvermispora under solid-state fermentation for periods varying from 15 to 90 days. Milled wood lignins extracted from sound and biotreated wood samples were characterized by wet-chemical and spectroscopic techniques. Treatment of the lignins by derivatization followed by reductive cleavage (DFRC) made it possible to detect DFRC monomer...