Promising biological conversion of lignocellulosic biomass to renewable energy with rumen microorganisms: A comprehensive review

Liang, Jinsong; Nabi, Mohammad; Zhang, Panyue; Zhang, Guangming; Cai, Yajing; Wang, Qingyan; Zhou, Zeyan; Ding, Yiran

doi:10.1016/j.rser.2020.110335

Cited by 86 publications

(51 citation statements)

References 142 publications

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“…Rumen microorganisms (mainly fungi) are able to degrade or decompose the rigid lignin molecular structure. 28 Fluorescence spectraparallel factor components of DOM Fluorescence EEM spectra were used to characterize the DOM (D 0 , D 5 , D 25 and D 55 samples). The uorescence intensities of the three peaks observed in all DOM samples changed dramatically during anaerobic digestion (see Fig.…”

Section: Performance Of Anaerobic Digestionmentioning

confidence: 99%

Fluorescence characteristics of dissolved organic matter during anaerobic digestion of oil crop straw inoculated with rumen liquid

Chen

Wang

et al. 2021

RSC Adv.

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Section: Performance Of Anaerobic Digestionmentioning

confidence: 99%

Fluorescence characteristics of dissolved organic matter during anaerobic digestion of oil crop straw inoculated with rumen liquid

Chen

Wang

et al. 2021

RSC Adv.

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“…Crop straw is the most abundant renewable biomass, and its worldwide annual yield is estimated at 200 billion tons (Liang et al 2020 ). The use of crop straw as a source of energy, forage, fertilizer, and other high value chemicals is of great interest (Zhang 2008 ).…”

Section: Introductionmentioning

confidence: 99%

“…However, due to the complexity of lignocellulose structure, degradation is the bottleneck in the utilization of crop straw. Compared with the physical and chemical degradation of straw, microbial degradation has the advantages of environmental friendliness and high efficiency (Liang et al 2020 ). A number of microorganisms have been isolated and used to degrade straw (Arntzen et al 2020 ; Ding et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…A number of microorganisms have been isolated and used to degrade straw (Arntzen et al 2020 ; Ding et al 2019 ). Under natural conditions, the degradation of straw depends on the synergistic action of multiple microorganisms (Liang et al 2020 ; Wang et al 2016 ). Microbial consortia can improve the efficiency and stability of straw degradation compared to a single strain (Gong et al 2020 ; Zuroff and Curtis 2012 ).…”

Section: Introductionmentioning

confidence: 99%

“…Efficient straw degrading microflora are usually obtained from ruminant feces or long-term storage of lignocellulose (Haruta et al 2002 ; Liang et al 2020 ). Wongwilaiwalin et al ( 2013 ) demonstrated that the microflora sources had significant effects on degradation rate and microbial community.…”

Section: Introductionmentioning

confidence: 99%

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Effect of liquid volume and microflora source on degradation rate and microbial community in corn stover degradation

et al. 2021

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Degradation is the bottleneck in the utilization of crop straw. In this paper, we screened the microbial consortia degrading corn stover from straw degrading consortia MC1 (M), sheep feces (Y), and mixtures (Q) of M, Y, and cattle feces. The effects of microflora source and liquid volume (representing dissolved oxygen) on the microbial community and degradation rate of corn stover were investigated. The results showed that the degradation rate and cellulase activity of a 200 mL liquid volume (L2) were significantly higher than that of 100 mL (L1). Microflora source had a significant effect on bacterial and fungal diversity, composition and taxa. Q and Y had higher bacterial and fungal α-diversity than that of M. The degradation rate was significantly correlated with cellulase activity but not with microbial diversity. This indicated that liquid volume had a significant effect on degradation rate while microflora source had a significant effect on microbial community in corn stover degradation.

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Transient shifts in hydraulic retention times improve the methane production from ruminal hydrolysates of agave bagasse

Vital‐Jácome

Barragán-Trinidad

Buitrón

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND Valorization of lignocellulosic wastes such as agave bagasse from tequila industries can be enhanced using efficient biomass pretreatments. However, the next challenge requires finding the best process conditions to produce methane and remove chemical oxygen demand (COD) from the pretreatment hydrolysates. In this work, an innovative feeding strategy based on alternating hydraulic retention times (HRT) was investigated to improve methane production from ruminal hydrolysates of Agave tequilana bagasse. RESULTS The ruminal hydrolysate provided a substrate rich in volatile fatty acids (VFA) for direct use in the methanogenic process. The alternating feeding strategy increased the volumetric methane production rate by up to 25% (from 0.76 ± 0.05 to 0.95 ± 0.03 L CH4 L−1 d−1) compared to operating at a constant feeding rate, equivalent HRT of 15 h, and organic loading rate (OLR) of 8 g COD L−1 d−1. The alternating HRT operation improved VFA conversion without modifying the methane yield, and the COD removal was increased by 14%. The system stability, measured through the alkalinity index, was maintained during the proposed feeding strategy and after the increase in OLR. CONCLUSION The proposed feeding strategy is a promising tool for improving methane production from agave bagasse hydrolysates. The strategy was robust and easy to apply, which could expand its use for a wider variety of substrates. © 2021 Society of Chemical Industry (SCI).

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Promising biological conversion of lignocellulosic biomass to renewable energy with rumen microorganisms: A comprehensive review

Cited by 86 publications

References 142 publications

Fluorescence characteristics of dissolved organic matter during anaerobic digestion of oil crop straw inoculated with rumen liquid

Fluorescence characteristics of dissolved organic matter during anaerobic digestion of oil crop straw inoculated with rumen liquid

Effect of liquid volume and microflora source on degradation rate and microbial community in corn stover degradation

Transient shifts in hydraulic retention times improve the methane production from ruminal hydrolysates of agave bagasse

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