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  2. Lignin - Wikipedia

    en.wikipedia.org/wiki/Lignin

    Idealized structure of lignin from a softwood. Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. [1] Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity and do not rot easily.

  3. Lignan - Wikipedia

    en.wikipedia.org/wiki/Lignan

    Flax seeds and sesame seeds contain high levels of lignans. [1] [8] The principal lignan precursor found in flaxseeds is secoisolariciresinol diglucoside.[1] [8] Other foods containing lignans include cereals (rye, wheat, oat and barley), soybeans, tofu, cruciferous vegetables, such as broccoli and cabbage, and some fruits, particularly apricots and strawberries. [1]

  4. Monolignol - Wikipedia

    en.wikipedia.org/wiki/Monolignol

    Lignin is a polymer with an inert nature that forms the structures of woody plants. The ratio of the three monolignols as well as their linkages varies depending on the plant species. For example, Norway spruce lignin is almost entirely derived from coniferyl alcohol , whereas paracoumaryl alcohol is the main monomer of lignin in grasses . [ 4 ]

  5. Lignin characterization - Wikipedia

    en.wikipedia.org/wiki/Lignin_characterization

    The term "lignin characterization" (or "lignin analysis") refers to a group of activities within lignin research aiming at describing the characteristics of a lignin by determination of its most important properties. [1] Most often, this term is used to describe the characterization of technical lignins by means of chemical or thermo-chemical ...

  6. Lignocellulosic biomass - Wikipedia

    en.wikipedia.org/wiki/Lignocellulosic_biomass

    Lignin confers structural integrity to plants. Lignin is so heterogeneous and so recalcitrant that its value is almost exclusively measured as a fuel. hemicellulose is composed of branched polysaccharides. A particular problem is that hemicellulose is covalently linked to lignin, usually through ferulic acid component of the

  7. Laccase - Wikipedia

    en.wikipedia.org/wiki/Laccase

    For example, laccases play a role in the formation of lignin by promoting the oxidative coupling of monolignols, a family of naturally occurring phenols. [ 1 ] [ 2 ] Other laccases, such as those produced by the fungus Pleurotus ostreatus , play a role in the degradation of lignin, and can therefore be classed as lignin-modifying enzymes . [ 3 ]

  8. Wood-decay fungus - Wikipedia

    en.wikipedia.org/wiki/Wood-decay_fungus

    Lignin is a biopolymer which combines with cellulose to form the lignocellulose complex, an important complex that confers strength and durability to plant cell walls. Lignin is a macromolecule formed from the combination of many phenolic aromatic groups via oxidative coupling. Because of its high stability, lignin is incapable of being broken ...

  9. Improving America's Schools Act of 1994 - Wikipedia

    en.wikipedia.org/wiki/Improving_America's_Schools...

    Committee consideration by House Education and Labor, Senate Labor and Human Resources Passed the House on March 24, 1994 (289–128, Roll call vote 095 , via Clerk.House.gov) Passed the Senate on August 2, 1994 (94–6, Roll call vote 252 , via Senate.gov, in lieu of S. 1513 )