Transformation of Miscanthus and Sorghum cellulose during methane fermentation

Waliszewska, Hanna; Zborowska, Magdalena; Waliszewska, Bogusława; Borysiak, Sławomir; Antczak, A.; Czekała, Wojciech

doi:10.1007/s10570-017-1622-1

Cited by 21 publications

(15 citation statements)

References 36 publications

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“…Generally, more intramolecular hydrogen bond in long cellulose chains will hinder the cellulose conversion compared to shorter ones (Karimi and Taherzadeh, 2016). According to Waliszewska et al (2018), the partial cellulose with lower polymerization was hydrolyzed preferentially in anaerobic digestion; resulting in the increase of cellulose polymerization degree after the methane fermentation process.…”

Section: Basic Structural Properties Of Plant Cell Wall and Lignocellmentioning

confidence: 99%

“…Cellulose is the most important component of plant cell wall, and the negative effect of cellulose polymerization degree and cellulose crystallinity on enzymatic hydrolysis has been recognized as mentioned above. However, more investigation is needed regarding the various cellulose properties and parameters, e.g., changes of cellulose structure during fermentation process (Waliszewska et al, 2018), the cellulase adsorption and desorption (Yang et al, 2011), combined effect of cellulose and other cell wall properties (Jeoh et al, 2017).…”

Section: Basic Structural Properties Of Plant Cell Wall and Lignocellmentioning

confidence: 99%

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Biomethane Production From Lignocellulose: Biomass Recalcitrance and Its Impacts on Anaerobic Digestion

Liu

Xin

et al. 2019

Front. Bioeng. Biotechnol.

150

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Anaerobic digestion using lignocellulosic material as the substrate is a cost-effective strategy for biomethane production, which provides great potential to convert biomass into renewable energy. However, the recalcitrance of native lignocellulosic biomass makes it resistant to microbial hydrolysis, which reduces the bioconversion efficiency of organic matter into biogas. Therefore, it is necessary to critically investigate the correlation between lignocellulose characteristics and bioconversion efficiency. Accordingly, this review comprehensively summarizes the anaerobic digestion process and rate-limiting step, structural and compositional properties of lignocellulosic biomass, recalcitrance and inhibitors of lignocellulose and their major effects on anaerobic digestion for biomethane production. Moreover, various type of pretreatment strategies applied to lignocellulosic biomass was discussed in detail, which would contribution to cell wall degradation and improvement of biomethane yields. In the view of current knowledge, high energy input and cost requirements are the main limitations of these pretreatment methods. In addition to optimization of fermentation process, further studies should focus much more on key structural influence factors of biomass recalcitrance and anaerobic digestion efficiency, which will contribute to improvement of biomethane production from lignocellulose.

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Section: Basic Structural Properties Of Plant Cell Wall and Lignocellmentioning

confidence: 99%

Section: Basic Structural Properties Of Plant Cell Wall and Lignocellmentioning

confidence: 99%

Biomethane Production From Lignocellulose: Biomass Recalcitrance and Its Impacts on Anaerobic Digestion

Liu

Xin

et al. 2019

Front. Bioeng. Biotechnol.

150

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“…Much less desirable raw materials for biogas production are wastes with a high lignin content. Lignocellulosic biomass contains natural polymers such as cellulose, hemicellulose, and lignin [ 1 , 2 , 3 ]. Cellulose and hemicellulose as carbohydrates suitable as feedstock are fermentable after hydrolysis for bioenergy production.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Corn Straw Extrusion Pretreatment Parameters on Methane Fermentation Performance

et al. 2020

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The aim of the study is to determine the energy consumption of the extrusion-cooking process of corn straw under various conditions (screw speed, moisture content), water absorption measurements and water solubility indices as well as biogas efficiency evaluation. The extrusion-cooking of corn straw was carried out using a single screw extruder with L/D = 16:1 at various rotational screw speeds (70, 90, and 110 rpm) and with various initial moisture content of raw material (25 and 40%). Prior to the process, the moisture content of the raw material was measured, and next, it was moistened to 25 and 40% of dry matter. For example, at 70 rpm extruder screw speed, the temperature range was 126–150 °C. Energy consumption of straw pretreatment through extrusion-cooking was assessed in order to evaluate the possibility of using the process in an agricultural biogas plant. Biogas and methane efficiency of substrates after extrusion was tested in a laboratory scale biogas plant and expressed as a volume of cumulative methane production for fresh matter, dry matter, and dry organic matter. Pretreated corn straw moistened to 25% and processed at 110 rpm during the extrusion-cooking processing produced the most advantageous effect for methane and biogas production (51.63%) efficiency as compared to corn straw without pretreatment (49.57%). Rotational speed of the extruder screw influenced biogas and methane production. With both dry matter and dry organic matter, the increase of rotational speed of the extruder screw improved the production of cumulated biogas and methane. Pretreatment of corn straw has a positive effect on the acquisition of cumulated methane (226.3 Nm3 Mg−1 for fresh matter, 243.99 Nm3 Mg−1 for dry matter, and 254.83 Nm3 Mg−1 for dry organic matter). Preliminary analysis of infrared spectra revealed changes in the samples also at the molecular level, thus opening up the possibility of identifying marker bands that account for specific degradation changes.

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“…However, the research conducted to date fails to indicate precisely which chemical changes lignocellulose biomass undergoes during AD. Changes in the chemical structure of cellulose occurring under the influence of the fermentation process have been widely described in the literature [28,29,30,31]. Results on changes involving carbohydrates during that process for miscanthus and sorghum varieties have been presented by Waliszewska et al [31].…”

Section: Introductionmentioning

confidence: 99%

Lignin Transformation of One-Year-Old Plants During Anaerobic Digestion (AD)

et al. 2019

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The aim of the research is to identify the changes which occur in lignin from miscanthus and sorghum, one of the main biomass components, as a result of an anaerobic digestion (AD) process. The percentage content and structure of lignin before and after the fermentation process were analysed using biomass harvested in two growing periods—before and after vegetation. It was shown that plants at different developmental stages differ in lignin content. During plant growth, the lignin structure also changes—the syringyl-to-guaiacyl ratio (S/G) increases, whereas the aliphatic and aromatic structure ratio (Al/Ar) decreases. The AD process leads to an increase in percentage lignin content in cell walls, and the increase is higher for plants harvested during vegetation. It has been shown in studies that the methane fermentation of miscanthus and sorghum produces waste containing a large amount of lignin, the structure of which is altered relative to native lignin. The quantity and the new, simplified structure of lignin create new possibilities for using this aromatic polymer.

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Transformation of Miscanthus and Sorghum cellulose during methane fermentation

Cited by 21 publications

References 36 publications

Biomethane Production From Lignocellulose: Biomass Recalcitrance and Its Impacts on Anaerobic Digestion

Biomethane Production From Lignocellulose: Biomass Recalcitrance and Its Impacts on Anaerobic Digestion

The Influence of Corn Straw Extrusion Pretreatment Parameters on Methane Fermentation Performance

Lignin Transformation of One-Year-Old Plants During Anaerobic Digestion (AD)

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