Studies on lignin structure and its engineering are inextricably and bidirectionally linked. Perturbations of genes on the lignin biosynthetic pathway may result in striking compositional and structural changes that in turn suggest novel approaches for altering lignin and even 'designing' the polymer to ...
Boerjan Lignin structure and its engineering Curr. Opin. Biotechnol., 56 (2019), pp. 240-249, 10.1016/j.copbio.2019.02.019 View PDFView articleView in ScopusGoogle Scholar Raven et al., 2007 P.H. Raven, R.F. Evert, S.E. Eichhorn The angiosperm plant body: structure and development ...
Lignin structure and its engineering. Curr Opin Biotechnol. 2019;56:240–9. 126. Cao X, Drosos M, Leenheer JA, Mao J. Secondary structures in a freeze- dried lignite humic acid fraction caused by hydrogen-bonding of acidic protons with aromatic rings. Environ Sci Technol. 2016;50(4):1663...
Therefore, tough it looks rather complex, its molecular structure consists of atoms only of carbon, hydrogen and oxygen. What is lignin and its function? Lignin is a durable, waterproof polymer that serves as a "backbone" for plants, providing structure and support. It serves as a barrier to...
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China Chong Liu Laboratory of Sustainable and Catalytic Processing, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne...
The industrial applications of lignin are limited critically due to its complex nature and undefined chemical structure. For example, commercially purchased kraft lignins from softwoods may have different compositions as well as their structures [14]. Furthermore, the lignin-carbohydrate complex (LCC) ...
We focused our in situ refining strategy studies initially on the overall transformation of the Csp2–Csp3/Csp2–O bonds by using 1-(4-methoxyphenyl)-1-propanol (1a) as the model compound because of its lignin-mimetic phenylpropanol structure [(CH3O)Ph-Csp3(OH)–] with only one methoxy...
The aggregation structure regulation of lignin by chemical modification and its effect on the property of lignin/styrene–butadiene rubber composites The aggregation structure of lignin in aqueous solution had an important effect on the dispersion of lignin and the properties of lignin/styrene–butadiene...
, the most commonly found ranges are cellulose: 38%–50%;hemicellulose: 23%–32%, and lignin: 15%–25%[38]. Lignin is an amorphous substance and has an aromatic nature and a complex structure. Lignin can be an alternative source for benzene, currently obtained from petroleum, and can...
A model structure of softwood Kraft lignin is shown in Fig. 5 (Kun and Pukánszky, 2017). The molecular weight of kraft lignin is in the range of 1500–25,000 g/mol. Due to the sodium sulfide employed as one of the pulping reagents, kraft lignin may have sulfur impurity in its ...