*  Tower reactors for bioconversion of lignocellulosic material - NGUYEN; QUANG A.
However, the viscosity of the slurry is still high since all fibers are not digested and the insoluble lignin is not digestible ... Depending on the extent of the cellulose hydrolysis and the lignin content in the material, the insoluble solid concentration ... During this step the lignocellulosic material is heated to break down the lignin and carbohydrate structure, solubilize most of ... which are primarily in the form of undigested fibers and insoluble lignin, would likely wash the yeast or other fermenting ...
  http://www.freepatentsonline.com/5733758.html
*  Laccase-natural mediator systems for "green" synthesis of phenolic monomers from alkali lignin - Sustainable Energy & Fuels ...
Alkali lignin enzymatic treatment and phase separation. The alkali lignin (50 g L−1) was treated with the laccase-MS mediator ... Pyrolysis GCMS data of the alkali lignin before and after treatment with LMT-MS and LTV-MS. Pyrolysis of the solid lignin ... Compared to the original lignin, the pore volume of the lignin treated with LMT-MS and LVT-MS was 1.6× and 2.6× higher ... According to the TGA analysis, the decomposition of the original lignin starts at 350 °C and at 480 °C almost 80% of lignin is ...
  http://pubs.rsc.org/en/content/articlehtml/2017/se/c7se00209b
*  Tailoring the Molecular and Thermo-Mechanical Properties of Kraft Lignin by Ultrafiltration
To produce low molecular weight lignin (,5000 Da cut-off) from re-dissolved LignoBoost lignin, lower lignin concentrations and ... The first part of this work focuses on kraft lignin. Kraft lignin is interesting because approximately 3.5-4 million metric ... The obtained lignin samples had a varying quantities of functional groups, which correlated with their molecular weight with ... Through CFF, kraft lignin from black liquor has been fractionated into raw material samples with more homogeneous ...
  http://kth.diva-portal.org/smash/record.jsf?pid=diva2:709862
*  Estimation and comparison of acid detergent lignin and acetyl bro...: Ingenta Connect
Lignin is a complex polymer of lignin units. The types and ratios of lignin units vary among taxonomic classes of plants. To ... Estimation and comparison of acid detergent lignin and acetyl bromide lignin in fallen leaves using near-infrared spectroscopy ... In monocotyledonous herbaceous plants, the lignin content determined by acetyl bromide was more than twice that determined by ... Several analytical methods have been developed to measure the lignin content corresponding to different plant species and ...
  http://www.ingentaconnect.com/content/tandf/tres/2004/00000025/00000024/art00004
*  Effect of transition metal catalyst on lignin oxidation during alkaline hydrogen peroxide pretreatment<...
The lignin recalcitrance in lignocellulose biomass can be removed by H 2O 2 oxidation and the enzymatic hydrolysis efficiency ... The lignin recalcitrance in lignocellulose biomass can be removed by H 2O 2 oxidation and the enzymatic hydrolysis efficiency ... The lignin recalcitrance in lignocellulose biomass can be removed by H 2O 2 oxidation and the enzymatic hydrolysis efficiency ... The lignin recalcitrance in lignocellulose biomass can be removed by H 2O 2 oxidation and the enzymatic hydrolysis efficiency ...
  https://scholars.opb.msu.edu/en/publications/effect-of-transition-metal-catalyst-on-lignin-oxidation-during-al-3
*  Peroxomolybdate Catalysts in Pulp Hydrogen Peroxide Bleaching : Improvement Inhexeneuronic Acid Removal and Delignification
1H-NMR revealed that lignin model compounds with double bond structure in conjugation with the aromatic ring has an extreme ... In order to investigate the oxidation mechanism, lignin model compounds with different side chain structures were reacted with ... in which the activated hydrogen peroxide was found to act in a similar fashion on surface lignin as well. In conclusion, ... did not react to any noticeable extent with neither the lignin model compounds or HexA, under otherwise similar conditions. ...
  http://umu.diva-portal.org/smash/record.jsf?pid=diva2:146974
*  Process to dissociate and extract the Lignin and the Xylan from the primary wall and middle lamella or lignocellulosic material...
... and at the same time to dissociate the Lignin and the Xylan in the middle lamella and t ... If the lignin/xylan crosslinks are not severed, then the lignin is insoluble in these mild organic solvents. If the lignin/ ... Each fibril is bound to the adjacent fibrils by a further coating of crosslinked lignin and xylan. The ratio of lignin to xylan ... When the lignin/xylan crosslinks are severed, the lignin becomes highly soluble in alcohol and mild caustic. ...
  http://www.freepatentsonline.com/4908099.html
*  Relationships between lignin content and fermentability of intact and chemically treated big bluestem fiber
Two measures of lignin, acid detergent lignin (ADL) and acetyl bromide lignin (ABL), were assessed with regard to their ability ... Relationships between lignin content and fermentability of intact and chemically treated big bluestem fiber. K-REx Repository. ... Relationships between lignin content and fermentability of intact and chemically treated big bluestem fiber. Cochran, R.C.; ... Keywords: Beef; Big bluestem; Forage quality; Lignin. Conference: Cattlemen's Day, 1994, Kansas State University, Manhattan, KS ...
  http://krex.k-state.edu/dspace/handle/2097/4981
*  Read Chemical Modification of Lignocellulosic Materials on-line - lifearebooks HOUSE
Lignocellulosic biomass is a complex biopolymer that is primary composed of cellulose, hemicellulose, and lignin. The presence ...
  http://lifearebooks.blogspot.com/2016/01/read-chemical-modification-of.html
*  Publication : USDA ARS
Polysaccharides in fiber are poorly degraded into simple sugars because of their association with lignin. Lignin is normally ... Although incorporation of aldehyde-containing lignins into plants is not desirable from a nutritional standpoint, these lignins ... We found that coniferaldehyde lignins were much more inhibitory to polysaccharide degradation than coniferyl alcohol lignins. ... Since lignins in CAD deficient plants often contain elevated concentrations of aldehydes, we used a cell-wall model system to ...
  https://www.ars.usda.gov/research/publications/publication/?seqNo115=81691
*  Lignin Biosynthesis and Structure | Plant Physiology
Coupling of two lignin oligomers is rare in S/G-lignins but relatively common in G-lignins, where 5-5 coupling accounts for ... 2010) NMR of lignins. In Heitner C, Dimmel DR, eds, Lignins. Marcel Dekker, New York, pp 137-234. ... In addition to lignin content, lignin H/G/S composition also appears to be rather flexible. Silencing of HCT or C3H leads to ... Representation of a lignin polymer from poplar, as predicted from NMR-based lignin analysis (adapted from Stewart et al., 2009 ...
  http://www.plantphysiol.org/content/153/3/895
*  Effects of Temperature on Anaerobic Lignin Degradation in Bioreactor Landfills
The thermal and biological study indicates that as lignin is solubilized, it breaks down into lignin monomers, which can be ... lignin monomers, and/or methane present. Lignin solubility increased as temperature rose in the thermal solubility experiments ... Solubility of lignin based on temperature and time of thermal exposure were conducted. In addition, degradation studies were ... In order to observe the effects of temperature on lignin, small bioreactors were created in the laboratory. Several experiments ...
  https://vtechworks.lib.vt.edu/handle/10919/36051
*  China Wood Pulp Powder Sodium Lignin for Concrete Admixure (lignolphonate) - China Sodium Lignin Price, Sodium Lignin MSDS
Find details about China Sodium Lignin Price, Sodium Lignin MSDS from Wood Pulp Powder Sodium Lignin for Concrete Admixure ( ... China Wood Pulp Powder Sodium Lignin for Concrete Admixure (lignolphonate), ... Wood Pulp Powder Sodium Lignin for Concrete Admixure (lignolphonate) Wood Pulp Powder Sodium Lignin for Concrete Admixure ( ... Sodium Lignin Price, Sodium Lignin MSDS, Concrete Admixture manufacturer / supplier in China, offering Wood Pulp Powder Sodium ...
  http://jfchemtech.en.made-in-china.com/product/nBRQoqlWOApb/China-Wood-Pulp-Powder-Sodium-Lignin-for-Concrete-Admixure-lignolphonate-.html
*  Evaluation of errors associated with [delta]13C analysis of lignin-derived TMAH thermochemolysis products by gas chromatography...
Tetramethylammonium hydroxide, Thermochemolysis, Lignin' Lignin derivatives, Stable carbon isotope, Gas chromatography- ... 7‰ relative to the Klason lignins. This large variability can be partially attributed to overlapping chromatographic peaks and ... Evaluation of errors associated with [delta]13C analysis of lignin-derived TMAH thermochemolysis products by gas chromatography ... 2006 Evaluation of errors associated with [delta]13C analysis of lignin-derived TMAH thermochemolysis products by gas ...
  http://nora.nerc.ac.uk/id/eprint/592/
*  中国科学院大连化学物理研究所机构知识库(DICP OpenIR): Microwave-assisted fast conversion of lignin model compounds and organosolv
Conversion of a series of lignin beta-O-4 model compounds 2-aryloxy-1-arylethanols and organosolv lignin to aromatic chemicals ... Microwave-assisted fast conversion of lignin model compounds and organosolv lignin over methyltrioxorhenium in ionic liquids[J ... Microwave-assisted fast conversion of lignin model compounds and organosolv lignin over methyltrioxorhenium in ionic liquids. ...
  http://cas-ir.dicp.ac.cn/handle/321008/146606
*  GCEP Research » Blog Archive » Efficient Biomass Conversion: Delineating the Best Lignin Monomer-Substitutes
"Identifying New Lignin Bioengineering Targets: Monolignol Substitute Impacts on Lignin Formation and Cell Wall Utilization," ... "Identifying New Lignin Bioengineering Targets: Monolignol Substitute Impacts on Lignin Formation and Cell Wall Utilization," ... "Identifying new lignin bioengineering targets: 1. Monolignol substitute impacts on lignin formation and cell wall ... "Altering Lignin Biosynthesis for Improved Biomass Conversion [Efficient Biomass Conversion: Delineating the Best Lignin Monomer ...
  http://web.stanford.edu/group/gcep/cgi-bin/gcep-research/all/efficient-biomass-conversion/
*  Lignin characterization - Wikipedia
The term "Lignin characterization" (or "Lignin analysis") refers to a group of activities within lignin research aiming at ... soda lignins (isolated from soda pulping) and lignin residue after enzymatic treatment of biomass. Lignins can be characterized ... Technical lignins are lignins isolated from various biomasses during various kinds of technical processes such as wood pulping ... Aldaeus, Fredrik; Sjöholm, Elisabeth (December 2011). "COST Action FP0901 Round Robins of lignin samples Part 1: Lignin content ...
  https://en.wikipedia.org/wiki/Lignin_characterization
*  Breaking Down Cellulose Without Blasting Lignin - Redorbit
"When it grows in forests, it decays the wood and leaves behind the lignin," she said. "We're very interested in what puts ... The brown rots evolved later from a white rot ancestry and, because they circumvent the lignin and go straight for the ... "Part of that is the machinery to break down wood became simpler since brown rot fungi are not breaking down lignin." ... The brown rot fungi have somehow circumvented that step to more efficiently get at the cellulose instead of blasting lignin, ...
  http://www.redorbit.com/news/science/2079407/breaking_down_cellulose_without_blasting_lignin/
*  Phys.org - lignin
Lignin waste modified for industrial bio-oil use. Lignin, a waste product in biomass and ethanol production, now finds new ... Lignin is a bulky chain of molecules found in wood and is usually discarded during biofuel production. But in a new method by ... Phys.org)-Lignin is an important component of the cell wall in plant cells and accounts for rigid structures, such as tree bark ... Using plants and trees to make products such as paper or ethanol leaves behind a residue called lignin, a component of plant ...
  https://phys.org/tags/lignin/
*  Lignin: Characterization of a Multifaceted Crop Component
Due to the significance of lignin in several agricultural disciplines, the modification of lignin content and composition by ... Lignin: Characterization of a Multifaceted Crop Component. Michael Frei Division of Abiotic Stress Tolerance in Crops, ... Lignin from crop residues plays an important role in the soil organic carbon cycling, as it constitutes a recalcitrant carbon ... In animal nutrition, lignin is considered an antinutritive component of forages as it cannot be readily fermented by rumen ...
  https://www.hindawi.com/journals/tswj/2013/436517/abs/
*  Course on Lignin degradation at ICGEB
... 'Robert Harper ', Finland HARPER at finfun.bitnet Thu May 3 09:12:00 EST 1990 *Previous ... Biodegradation of Lignin and Model Compounds Properties of Enzymes Involved in Lignin Degradation Cloning and Expression of ... INTERNATIONAL CENTRE FOR GENETIC ENGINEERING AND BIOTECHNOLOGY LIGNIN BIODEGRADATION AND PRACTICAL UTILIZATION COLLOQUIUM 27-30 ... Ligninase Genes Applied Aspects of Lignin Degradation/Utilization Application Information: Preference will be given to ICGEB ...
  http://www.bio.net/bionet/mm/bioforum/1990-May/002717.html
*  ORNL Develops Lignin-Based Thermoplastic Conversion Process
Materials Science »ORNL »Science TV »chemical process »green chemistry »high-value plastic »lignin molecules »lignin-based ... ORNL Develops Lignin-Based Thermoplastic Conversion Process 04.12.2012. Turning lignin, a plant's structural "glue" and a ... lignin molecules , lignin-based plastics , material science , renewable resource , synthesis of thermoplastics ... the material can be transformed into a lignin-derived high-value plastic. While the lignin byproduct in raw form is worth just ...
  http://www.innovations-report.com/html/report/materials-science/ornl-develops-lignin-based-thermoplastic-conversion-206681.html
*  Preparation and Characterization of Multifunctional Chitin/Lignin Materials
The chitin/lignin materials and precursors (chitin and Kraft lignin) were also subjected to FT-IR spectral analysis, using an ... Pore volume in chitin is significantly higher than in lignin. The mean size of chitin pores is 25.9 nm, while that of lignin ... Figure 4 shows the FT-IR spectra of the precursors, lignin and chitin, and final chitin/lignin materials obtained by the ... for pure lignin and . Another important parameter in colorimetric analysis is the variable, which determines total color change ...
  https://www.hindawi.com/journals/jnm/2013/425726/
*  Energies | Free Full-Text | Lignin-Furfural Based Adhesives
Untreated lignin is characterized by lignin content and nuclear magnetic resonance (NMR) analysis. The molecular weight ... distribution of the lignin and the blends are characterized by size exclusion chromatography (SEC). The effect of pH (0.3, 0.65 ... Lignin recovered from the hot-water extract of sugar maple (Acer saccharum) is used in this study to synthesize adhesive blends ... Keywords: lignin; hot-water extraction; sugar maple; lignin adhesive blend; furfural; phenol-formaldehyde (PF) lignin; hot- ...
  http://www.mdpi.com/1996-1073/8/8/7897
*  lignin test - Biology-Online
Safranin stains lignin. 'As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind ... lignin test. Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field. ... hola!..has anyone here know how to test the presence of lignin in match stick?...is there any particular reagent should b used ...
  https://www.biology-online.org/biology-forum/viewtopic.php?t=2187