Biodelignification of lignocellulose using ligninolytic enzymes from white-rot fungi

Suryadi, Herman; Judono, Jessica J.; Putri, Merianda R.; Eclessia, Alma D.; Ulhaq, Jiihan M.; Agustina, Dinar N.; Sumiati, Triyani

doi:10.1016/j.heliyon.2022.e08865

Cited by 49 publications

(18 citation statements)

References 133 publications

(161 reference statements)

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“…A total of 15 laccases and 10 class II peroxidases were annotated in the genome of P. giganteus with SwissProt database. These enzymes play key roles in the degradation of plant cell wall components ( Manavalan et al, 2015 ; Suryadi et al, 2022 ). Therefore, the results indicated a robustness lignocellulose degradation of this strain, which is in consistent with the woody materials used in the fruiting body production.…”

Section: Resultsmentioning

confidence: 99%

Whole-genome sequence of a high-temperature edible mushroom Pleurotus giganteus (zhudugu)

Zhang

Sun

et al. 2022

Front. Microbiol.

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Most of the sequenced wood-rotting edible mushroom produce fruiting body at relatively low temperatures. Little information has been known about the high-temperature wood-rotting mushroom. Here, we performed de novo sequencing and assembly of the genome of a high-temperature edible mushroom Pleurotus giganteus from a monokaryotic strain zhudugu2 using the Illumina and Pac-Bio CLR sequencing technologies. P. giganteus, also known as Zhudugu in China, is a well-known culinary edible mushroom that has been widely distributed and cultivated in China, Southeast Asia, and South Asia. The genome consists of 40.00 Mb in 27 contigs with a contig N50 of 4.384 Mb. Phylogenetic analysis reveals that P. giganteus and other strains in Pleurotus clustered in one clade. Phylogenetic analysis and average nucleotide identity analysis indicated that the P. giganteus genome showed a closer relationship with other Pleurotus species. Chromosome collinearity analysis revealed a high level of collinearity between P. ostreatus and P. giganteus. There are 12,628 protein-coding genes annotated in this monoploid genome. A total of 481 enzymes accounting for 514 carbohydrate-active enzymes (CAZymes) terms were identified in the P. giganteus genome, including 15 laccases and 10 class II peroxidases predicted in the genome, which revealed the robustness of lignocellulose degradation capacity of P. giganteus. The mating-A type locus of P. giganteus consisted of a pair of homeodomain mating-type genes HD1 and HD2. The mating-B type locus of P. giganteus consisted of at least four pheromone receptor genes and three pheromone genes. The genome is not only beneficial for the genome-assisted breeding of this mushroom but also helps us to understand the high-temperature tolerance of the edible mushroom.

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Section: Resultsmentioning

confidence: 99%

Whole-genome sequence of a high-temperature edible mushroom Pleurotus giganteus (zhudugu)

Zhang

Sun

et al. 2022

Front. Microbiol.

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“…The primary components of refractory lignocellulosic biomass require specialized enzymes so that their polymeric forms can be cleaved into shorter chains or monomers for use in subsequent conversion processes [59][60][61][62][63][64]. Lignocellulolytic activity commences with an oxidative attack that depolymerizes lignin, the most resistant component of the cell wall, allowing hydrolases access to complex polysaccharide polymers [65]. On the other hand, petroleum-derived polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyethylene (PE), polyurethane (PUR), polypropylene (PP), and polystyrene (PS) comprise the majority of plastic polymers currently produced [8] (Fig.…”

Section: Similarities Between Lignocellulose and Plasticmentioning

confidence: 99%

Environmental and Human Health Impact of Disposable Face Masks During the COVID-19 Pandemic: Wood-Feeding Termites as a Model for Plastic Biodegradation

Al-Tohamy

Ali

Zhang

et al. 2022

Appl Biochem Biotechnol

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The ongoing COVID-19 pandemic has resulted in an unprecedented form of plastic pollution: personal protective equipment (PPE). On the eve of the COVID-19 pandemic, there is a tremendous increase in the production of plastic-based PPE. To control the spread of the virus, face masks (FMs) are used as primary PPE. Thus, the production and usage of FM significantly increased as the COVID-19 pandemic was still escalating. The primary raw materials for the manufacturing of FMs are non-biodegradable synthetic polymers derived from petrochemicals. This calls for an urgent need to develop novel strategies for the efficient degradation of plastics. Furthermore, most of these masks contain plastic or other derivatives of plastic. The extensive usage of FM generates millions of tons of plastic waste for the environment in a short span of time. However, their degradation in the environment and consequences are poorly understood. Therefore, the potential impacts of disposable FM on the environment and human health during the COVID-19 pandemic are clarified in the present study. Despite structural and recalcitrance variations, lignocellulose and plastic polymers have physicochemical features, including carbon skeletons with comparable chemical bonds as well as hydrophobic properties in amorphous and crystalline regions. In this review, we argue that there is much to be learned from termites by transferring knowledge from research on lignocellulose degradation by termites to that on plastic waste.

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“…However, this problem can be addressed by continuous flow processing systems [ 32 ]. Furthermore, although compared to other pretreatments, WRF involve longer processes, the energy requirements are low, and treatment conditions are mild and more environment-friendly [ 33 , 34 ]. In this study, we aim to evaluate a bio-alkali pretreatment process (fungal pretreatment combined with 0.1 M NaOH) for the bioconversion of Acacia dealbata , A .…”

Section: Introductionmentioning

confidence: 99%

Valorisation Potential of Invasive Acacia dealbata, A. longifolia and A. melanoxylon from Land Clearings

et al. 2022

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Acacia spp. are invasive in Southern Europe, and their high propagation rates produce excessive biomass, exacerbating wildfire risk. However, lignocellulosic biomass from Acacia spp. may be utilised for diverse biorefinery applications. In this study, attenuated total reflectance Fourier transform infrared spectroscopy (FTIR-ATR), high-performance anion-exchange chromatography pulsed amperometric detection (HPAEC-PAD) and lignin content determinations were used for a comparative compositional characterisation of A. dealbata, A. longifolia and A. melanoxylon. Additionally, biomass was treated with three white-rot fungi species (Ganoderma lucidum, Pleurotus ostreatus and Trametes versicolor), which preferentially degrade lignin. Our results showed that the pre-treatments do not significantly alter neutral sugar composition while reducing lignin content. Sugar release from enzymatic saccharification was enhanced, in some cases possibly due to a synergy between white-rot fungi and mild alkali pretreatments. For example, in A. dealbata stems treated with alkali and P. ostreatus, saccharification yield was 702.3 nmol mg−1, which is higher than the samples treated only with alkali (608.1 nmol mg−1), and 2.9-fold higher than the non-pretreated controls (243.9 nmol mg−1). By characterising biomass and pretreatments, generated data creates value for unused biomass resources, contributing to the implementation of sustainable biorefining systems. In due course, the generated value will lead to economic incentives for landowners to cut back invasive Acacia spp. more frequently, thus reducing excess biomass, which exacerbates wildfire risk.

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Biodelignification of lignocellulose using ligninolytic enzymes from white-rot fungi

Cited by 49 publications

References 133 publications

Whole-genome sequence of a high-temperature edible mushroom Pleurotus giganteus (zhudugu)

Whole-genome sequence of a high-temperature edible mushroom Pleurotus giganteus (zhudugu)

Environmental and Human Health Impact of Disposable Face Masks During the COVID-19 Pandemic: Wood-Feeding Termites as a Model for Plastic Biodegradation

Valorisation Potential of Invasive Acacia dealbata, A. longifolia and A. melanoxylon from Land Clearings

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