Persistent action of cow rumen microorganisms in enhancing biodegradation of wheat straw by rumen fermentation

Xing, Bao-Shan; Han, Yule; Wang, Xiaochang C.; Wen, Jiaming; Cao, Sifan; Kai-di, Zhang; Li, Qian; Yuan, Honglin

doi:10.1016/j.scitotenv.2020.136529

Cited by 72 publications

(27 citation statements)

References 50 publications

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“…The complex rumen microbial communities contain seven predominant genera, such as Prevotella, Butyrivibrio, Ruminococcus, and the unclassified Lachnospiraceae, Ruminococcaceae, Bacteroidales, and Clostridiales. The next-generation sequencing technology is often used to demonstrate the properties of these microorganisms [71].…”

Section: Fluid Rumen Bacteriamentioning

confidence: 99%

“…Other experiments were conducted to study the effect of microorganisms of cow rumen in improving the biodegradation of substrate represented by wheat straw, as can be seen in Figure 2. The experiments were conducted for three months and it was shown that members of the Clostridiales order and Basidiomycota phylum were found to be the dominant lignocellulolytic bacteria and fungi, respectively [71]. Other studies on the microbial and biotechnological benefits of rumen liquid used to degrade LC biomass in biogas plants have been performed by Nagler et al [77], who showed that rumen liquid addition is a promising strategy for enhanced and accelerated exploitation of lignocellulose-rich biomass for biomethanization.…”

Section: Fluid Rumen Bacteriamentioning

confidence: 99%

“…Figure 2. Lignocellulosic metabolic pathways of the rumen microorganisms during rumen fermentation (adapted from[71]). …”

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confidence: 99%

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Microorganisms and Enzymes Used in the Biological Pretreatment of the Substrate to Enhance Biogas Production: A Review

et al. 2020

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The pretreatment of lignocellulosic biomass (LC biomass) prior to the anaerobic digestion (AD) process is a mandatory step to improve feedstock biodegradability and biogas production. An important potential is provided by lignocellulosic materials since lignocellulose represents a major source for biogas production, thus contributing to the environmental sustainability. The main limitation of LC biomass for use is its resistant structure. Lately, biological pretreatment (BP) gained popularity because they are eco-friendly methods that do not require chemical or energy input. A large number of bacteria and fungi possess great ability to convert high molecular weight compounds from the substrate into lower mass compounds due to the synthesis of microbial extracellular enzymes. Microbial strains isolated from various sources are used singly or in combination to break down the recalcitrant polymeric structures and thus increase biogasgeneration. Enzymatic treatment of LC biomass depends mainly on enzymes like hemicellulases and cellulases generated by microorganisms. The articles main purpose is to provide an overview regarding the enzymatic/biological pretreatment as one of the most potent techniques for enhancing biogas production.

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Section: Fluid Rumen Bacteriamentioning

confidence: 99%

Section: Fluid Rumen Bacteriamentioning

confidence: 99%

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Microorganisms and Enzymes Used in the Biological Pretreatment of the Substrate to Enhance Biogas Production: A Review

et al. 2020

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“…The lowest biogas production was observed from reactors pretreated for 2 days with 3.3 ml biogas. The effect of persistent action of cow rumen pretreatment on degradation of wheat straw has been studied by Xing et al (2020). At the end of 33 days pretreatment, approximately 240 ml of biogas was obtained with the volatile fatty acids (VFAs) yield of 0.453 g COD g −1 VS.…”

Section: Pretreatment Stagementioning

confidence: 99%

Methane Production Potential of Rumen Pretreated Lignocellulosic Wastes

Kara

Doluk

Yörüklü

et al. 2021

Preprint

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Bioenergy production from lignocellulosic biomass is challenging due to its structure and a pretreatment is required before methane production. In this study, biological pretreatment by using rumen microorganisms was applied for different types of lignocellulosic wastes: wheat straw, cotton stalk, reeds and sunflower stalk. The reactors were pretreated for 2, 5, 10, 15 and 20 days. After the pretreatment stages and gas measurements were done, reactors were separated into two phases as lower solid phase and upper liquid phase. The reactors were installed for the methanation stage, gas measurements were made at regular intervals and graphs were drawn using the cumulative results. Modified Gompertz equation was used to estimate potential biogas production. According to the results, the reactor containing 5 days pretreated wheat straw became prominent among the other reactors in terms of biogas and methane production with 163 ml and 102 ml, respectively. It was followed by 20 days pretreated reeds with 104 ml biogas and 80 ml methane, 2 days pretreated sunflower stalk with 88 ml biogas and 52 ml methane, and 2 days pretreated cotton stalk with 87 ml biogas and 50 ml methane.

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“…The family Oscillospiraceae now contains more than 40 recognized genera according to the List of Prokaryotic Names with Standing in Nomenclature (LPSN) published on 1 November 2020 [4]. Multiple members of Oscillospiraceae exist in anaerobic environments, such as guts, rumens, anaerobic digesters and Chinese liquor fermentation systems, and play vital roles in the degradation of carbohydrates as well as the production of short-and medium-chain fatty acids [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Caproicibacterium amylolyticum gen. nov., sp. nov., a novel member of the family Oscillospiraceae isolated from pit clay used for making Chinese strong aroma-type liquor

Zhu

Lin³

et al. 2021

International Journal of Systematic and Evolutionary Microbiology

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An anaerobic, Gram-stain-positive, rod-shaped, motile and spore-forming bacterium, designated strain LBM18003T, was isolated from pit clay used for making Chinese strong aroma-type liquor. Growth occurred at 20–40 °C (optimum, 30–37 °C), pH 4.5–9.5 (optimum, pH 6.5–7.0) and in the presence of 0.0–1.0 % (w/v) sodium chloride (optimum, 0 %). The predominant fatty acids were C16:0, C14:0, C14:0 DMA and C16:0 3-OH, and the major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, two unidentified phospholipids and nine unidentified glycolipids. Phylogenetic analysis revealed that strain LBM18003T is a novel member of the family Oscillospiraceae . The 16S rRNA gene sequence similarities of strain LBM18003T to its two most closely related species were less than 94.5 % for distinguishing genera, i.e. closely related to Caproiciproducens galactitolivorans JCM 30532T (94.1 %) and Caproicibacter fermentans DSM 107079T (93.2 %). The genome size of strain LBM18003T was 2 996 201 bp and its DNA G+C content was 48.48 mol%. Strain LBM18003T exhibited 67.8 and 68.1% pairwise-determined whole-genome average nucleotide identity values to Caproiciproducens galactitolivorans JCM 30532T and Caproicibacter fermentans DSM 107079T, respectively; and showed 62.2 and 61.0 % the average amino acid identity values to Caproiciproducens galactitolivorans JCM 30532T and Caproicibacter fermentans DSM 107079T, respectively; and demonstrated 46.1 and 41.5 % conserved genes to Caproiciproducens galactitolivorans JCM 30532T and Caproicibacter fermentans DSM 107079T, respectively. The comparisons of 16S rRNA gene and genome sequences confirmed that strain LBM18003T represented a novel genus of the family Oscillospiraceae . Based on morphological, physiological, biochemical, chemotaxonomic, genotypic and phylogenetic results, strain LBM18003T represents a novel species of a novel genus of the family Oscillospiraceae , for which the name Caproicibacterium amylolyticum gen. nov., sp. nov. is proposed. The type strain is LBM18003T (=GDMCC 1.1626T=JCM 33783T).

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Persistent action of cow rumen microorganisms in enhancing biodegradation of wheat straw by rumen fermentation

Cited by 72 publications

References 50 publications

Microorganisms and Enzymes Used in the Biological Pretreatment of the Substrate to Enhance Biogas Production: A Review

Microorganisms and Enzymes Used in the Biological Pretreatment of the Substrate to Enhance Biogas Production: A Review

Methane Production Potential of Rumen Pretreated Lignocellulosic Wastes

Caproicibacterium amylolyticum gen. nov., sp. nov., a novel member of the family Oscillospiraceae isolated from pit clay used for making Chinese strong aroma-type liquor

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