Enzymatic co-polymerization of lignin with low-molecular mass compounds

Milstein, O.; Hüttermann, Aloys; Fründ, R.; Lüdemann, H.‐D.

doi:10.1007/bf00173342

Cited by 77 publications

(31 citation statements)

References 25 publications

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“…Lower intensity of polymerisation Milstein et al (1994) Laccase treatment on natural fiber to activate the lignin content of fiber…”

Section: Laccase Enzymementioning

confidence: 99%

“…Hüttermann et al (2001 prepared a binderless particle board using laccase treatment that exhibited improved tensile strengths but lower water resistance. Much research has been done to develop a completely natural fiberboard by treating fiber with laccase, but none of the methods have been commercialized yet (Milstein et al 1994;Lund and Felby 2001;Felby et al 2004;Nasir et al 2013a;Nasir et al 2014a;Nasir et al 2014b). Felby et al (2002) prepared a laccase-treated binderless board in a pilot-scale production.…”

Section: Hydrophilicmentioning

confidence: 99%

“…The most accepted theory of lignin's biosynthesis is the radical coupling of three basic monolignols: p-coumaryl, coniferyl, and sinapyl alcohols (Gang et al 1999;Raiskila 2008). The process of lignin polymerization is known as lignification, during which phenolic monomers produce radicals that couple together with other monomer radicals to form oligomers and, ultimately, a phenyl-propanoid polymer (Brunow 2005;Milstein et al 1994). The lignin polymer exhibits various bonding such as β-O-4, β-5, 5-5, 5-3, or α-4 bonds.…”

Section: Ligninmentioning

confidence: 99%

“…Reported laccase in plants, and its role in lignin biosynthesis Milstein et al (1994) Lignin polymerization Laccase-catalyzed lignin polymerization by radical coupling, alkyl-aryl cleavage, or Ca oxidation Kharazipour et al (1997) Fiber surface activation Activated wood fibers for the production of wood composites Bourbonnais et al (1997) Laccase mediator Laccase activity enhanced by a mediator, and it behaved like a nonspecific enzyme Xu et al (1998) Used in pulp Studied the reaction mechanism and various parameters of the enzyme reaction on pulp Ikeda et al (1998) Radical polymerization…”

Section: Biosynthesis In Plantsmentioning

confidence: 99%

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Laccase, an Emerging Tool to Fabricate Green Composites: A Review

Mahmood¹,

Hashim²,

Sulaiman³

et al. 2015

BioResources

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In the last two decades, laccases have received much attention from researchers because of their specific ability to oxidize lignin. This function of laccase is very useful for applications in several biotechnological processes, including delignification in the pulp and paper industry and the detoxification of industrial effluents from the textile and petrochemical industries. This review focuses on laccase-mediated fiberboard synthesis. Growing concerns regarding the emission of formaldehyde from wood composites has prompted industrialists to consider the fabrication of green composites. Laccase-mediated fiber treatments oxidize the lignin component without affecting the cellulose structure. As a result, free radicals are generated on the fiber surface, and these can act as potential reactive sites for further cross-linking reactions in board manufacturing. Binderless fiberboards prepared using such methods can be considered as green composites because the manufacturing process involves no additional resin.

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“…Lower intensity of polymerisation Milstein et al (1994) Laccase treatment on natural fiber to activate the lignin content of fiber…”

Section: Laccase Enzymementioning

confidence: 99%

Section: Hydrophilicmentioning

confidence: 99%

Section: Ligninmentioning

confidence: 99%

Section: Biosynthesis In Plantsmentioning

confidence: 99%

See 2 more Smart Citations

Laccase, an Emerging Tool to Fabricate Green Composites: A Review

Mahmood¹,

Hashim²,

Sulaiman³

et al. 2015

BioResources

View full text Add to dashboard Cite

show abstract

“…Laccases are able to catalyze a variety of reactions, viz. cleavage of alkyl-phenyl, Cα-Cβ bonds and phenolic lignin dimers [56], demethoxylation [57], demethylation, polymerization, and depolymerization [58].…”

Section: Structural and Biochemical Characteristicsmentioning

confidence: 99%

Ligninolytic Fungal Laccases and Their Biotechnological Applications

Arora

Sharma

2009

Appl Biochem Biotechnol

321

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Lignin is amorphous in nature, lacks stereoregularity, and is not susceptible to hydrolytic attack. Despite its resistant nature, it is however degraded by various microorganisms, particularly, white-rot fungi. Such fungi are capable of extracellular production of lignin peroxidase, manganese peroxidase, and laccase, the three major enzymes associated with ligninolysis. Though all white-rot fungi do not produce all the three enzymes, laccase occupies an important place in ligninolysis. Laccase belongs to a diverse group of enzymes called oxidoreductases and is also known as benzenediol: oxygen oxidoreductase. They have low substrate specificity. The copper-containing enzyme laccase has been detected in a variety of organisms such as bacteria, fungi, plants, and insects. Mostly, these are extracellular proteins, although intracellular laccases have also been detected in some fungi and insects. Fungal laccases are believed to play a variety of roles, such as, morphogenesis, pathogenesis, and lignin degradation. As an oxidase, laccase is used in many agricultural, industrial, and medicinal applications. Current investigations are focused on laccase-based biooxidation, biotransformation, biosensor, and enzymatic synthesis of organic compounds. By enhancing laccase production using different physiochemical parameters, better understanding of the mechanism for the reactions of interest, and optimizing the catalytic activity of laccase, it can be used in a better way in diverse fields of biotechnology.

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Laccase

Xing¹

1999

Encyclopedia of Bioprocess Technology

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Enzymatic co-polymerization of lignin with low-molecular mass compounds

Cited by 77 publications

References 25 publications

Laccase, an Emerging Tool to Fabricate Green Composites: A Review

Laccase, an Emerging Tool to Fabricate Green Composites: A Review

Ligninolytic Fungal Laccases and Their Biotechnological Applications

Laccase

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