Strategic Role of Fungal Laccases in Biodegradation of Lignin

Shankar, Shiv; Singh, Shailja; Shikha, .; Mishra, Anuradha; Ram, Shobha

doi:10.1007/978-3-030-23834-6_7

Cited by 3 publications

(2 citation statements)

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“…34,53 The third class of enzymes, laccases, are Cu 2+ Àcontaining phenol oxidases that catalyze oxygen mediated oxidation of lignin and other phenol-containing compounds, following a mechanism similar to the example shown in Figure 5. 34,50,54 A less extensively investigated class of lignin-degrading peroxidase enzymes, called the versatile peroxidases, was also found in studies conducted in the late 1990s. 21 For example, Martínez et al found that Pleurotus eryngii, another white-rot fungal species, produces two peroxidase isozymes in the presence of peptone, both of which show Mn 2+ independent activities despite successfully carrying out monooxidation of Mn 2+ to Mn 3+.36,51 These 'versatile' peroxidases thus exhibit the properties of both lignin peroxidases and manganesedependent peroxidases.…”

Section: Lignin Degradation By Fungimentioning

confidence: 99%

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Lignin degradation by microorganisms: A review

Atiwesh

Parrish

Banoub

et al. 2021

Biotechnology Progress

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Lignin is an abundant plant‐based biopolymer that has found applications in a variety of industries from construction to bioethanol production. This recalcitrant branched polymer is naturally degraded by many different species of microorganisms, including fungi and bacteria. These microbial lignin degradation mechanisms provide a host of possibilities to overcome the challenges of using harmful chemicals to degrade lignin biowaste in many industries. The classes and mechanisms of different microbial lignin degradation options available in nature form the primary focus of the present review. This review first discusses the chemical building blocks of lignin and the industrial sources and applications of this multifaceted polymer. The review further places emphasis on the degradation of lignin by natural means, discussing in detail the lignin degradation activities of various fungal and bacterial species. The lignin‐degrading enzymes produced by various microbial species, specifically white‐rot fungi, brown‐rot fungi, and bacteria, are described. In the end, possible directions for future lignin biodegradation applications and research investigations have been provided.

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Section: Lignin Degradation By Fungimentioning

confidence: 99%

“…The third class of enzymes, laccases, are Cu 2+ −containing phenol oxidases that catalyze oxygen mediated oxidation of lignin and other phenol‐containing compounds, following a mechanism similar to the example shown in Figure 5 34,50,54 …”

Section: Lignin Biodegradationmentioning

confidence: 99%