Rumen bacteria at work: bioaugmentation strategies to enhance biogas production from cow manure

Özbayram, E. Gözde; Akyol, Çağrı; İnce, Bahar; Karakoç, Canan; İnce, Orhan

doi:10.1111/jam.13668

Cited by 53 publications

(29 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, the role of Oscillospira is still unknown and it is hypothesized that it may be involved in lignocellulose degradation (Kamagata, ). Rickenellaceae, with the genus Alistipes , and Desulfovibrionaceae have also been described in association with the guts of different animals (Koneru et al ., ; Ruengsomwong et al ., ), especially termites (Reid et al ., ; Makonde et al ., ), where they play an important role in the degradation of cellulose polymers (Ozbayram et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle Popillia japonica Newman (Coleoptera: Scarabaeidae)

Chouaia

Goda

Mazza

et al. 2019

Environmental Microbiology

View full text Add to dashboard Cite

Summary Popillia japonica Newman (Coleoptera: Scarabaeidae) is a highly polyphagous invasive beetle originating from Japan. This insect is highly resilient and able to rapidly adapt to new vegetation. Insect‐associated microorganisms can play important roles in insect physiology, helping their hosts to adapt to changing conditions and potentially contributing to an insect's invasive potential. Such symbiotic bacteria can be part of a core microbiota that is stably transmitted throughout the host's life cycle or selectively recruited from the environment at each developmental stage. The aim of this study was to investigate the origin, stability and turnover of the bacterial communities associated with an invasive population of P. japonica from Italy. Our results demonstrate that soil microbes represent an important source of gut bacteria for P. japonica larvae, but as the insect develops, its gut microbiota richness and diversity decreased substantially, paralleled by changes in community composition. Notably, only 16.75% of the soil bacteria present in larvae are maintained until the adult stage. We further identified the micro‐environments of different gut sections as an important factor shaping microbiota composition in this species, likely due to differences in pH, oxygen availability and redox potential. In addition, P. japonica also harboured a stable bacterial community across all developmental stages, consisting of taxa well known for the degradation of plant material, namely the families Ruminococcacae, Christensenellaceae and Lachnospiraceae. Interestingly, the family Christensenallaceae had so far been observed exclusively in humans. However, the Christensenellaceae operational taxonomic units found in P. japonica belong to different taxonomic clades within this family.

show abstract

Section: Discussionmentioning

confidence: 97%

Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle Popillia japonica Newman (Coleoptera: Scarabaeidae)

Chouaia

Goda

Mazza

et al. 2019

Environmental Microbiology

View full text Add to dashboard Cite

show abstract

“…32,33 The CRF was predominated by Bacteroidetes (54%) and Firmicutes (31%) at phylum level, in which Prevotellaceae was the most abundant family. 15…”

Section: Initial Characterization Of Substrates and Inoculamentioning

confidence: 99%

“…13,14 For instance, rumen fluid and/or rumen-derived enrichment cultures were used as co-inoculum in AD and increased the methane generation in a considerable amount. 15,16 High cellulolytic activity of the rumen microorganisms (i.e., bacteria, fungi, and protozoa) have been recently reported to contribute to enhanced substrate degradation and elevated methane production in return. [17][18][19] Inoculum to substrate (I:S) ratio is another significant parameter in the assessment of anaerobic batch digesters and the I:S ratio significantly affects the methane production.…”

mentioning

confidence: 99%

Enhancing methane production from anaerobic co‐digestion of cow manure and barley: Link between process parameters and microbial community dynamics

İnce

Akyol

Özbayram

et al. 2019

Env Prog and Sustain Energy

View full text Add to dashboard Cite

The effects of selected process parameters (i.e., temperature, inoculum to substrate ratio [I:S], and inoculum source) on methane production and microbial community structure were investigated in lignocellulose-based anaerobic digestion tests. The results highlighted that dynamic response of microbial communities in changing process parameters subsequently affected anaerobic digestion performance. Co-inoculation of cow rumen fluid to the seed sludge improved the methane yield by 18%. The overall highest methane yield (278 mL CH 4 /g volatile solids) was obtained when cow rumen fluid was co-inoculated with anaerobic seed sludge with an I:S ratio of 1:2 at mesophilic temperature. Based on 16S rRNA gene amplicon sequencing results, Clostridium, Bacteroides, and Bacillus were the predominant bacterial genera in all anaerobic digesters. The highest relative abundances of Clostridum and Bacillus were detected in the thermophilic anaerobic digester. The relative abundance of Rikenella; known for high cellulolytic activity, was significantly higher only in the cow rumen fluid-added digester. Comparatively higher abundances of these lignocellulose-degraders synergistically affected volatile fatty acids as well as methane production in these anaerobic digestion set ups. Methanobacterium was the most abundant methanogen in the digesters inoculated only with anaerobic seed sludge; whereas, Methanobrevibacter dominated the digester that was co-inoculated with cow rumen fluid.

show abstract

“…showed the percentage of methane (CH4) production at incubated temperature 25C and 39C. This results indicated that the percentage of CH4 production in Hungate tubes incubated at room temperature 25C was similar for the 1 st week up to 8 th week [8]. In contrast, the percentage of CH4 produced in Hungate tubes incubated at room temperature of 39C was increased from a 1 st week up to a 3 rd week, then decreased until the 8 th week.…”

Section: Proportion Of Biogasmentioning

confidence: 93%

“…Therefore, investigation of the viability of anaerobic bacteria consortium of beef cattle feces in a growth media is very important. By growing the rumen bacteria into the growth medium is intended for the bacteria to adapt and allowed the bacteria easily to grow when applying as a starter biogas [6][7][8]. This paper aims to determine the viability of an anaerobic bacterial consortium of beef cattle feces in a liquid medium incubated at temperatures of 25C and 39C to evaluate the potency of this anaerobic bacterial consortium as a starter in the biogas formation.…”

Section: Introductionmentioning

confidence: 99%

The Viability of anaerobic bacteria from beef cattle feces in liquid media

Hidayati

Kurnani

Marlina

et al. 2018

J. Pow. Tech. Adv. Funct. Mater.

View full text Add to dashboard Cite

The purpose of this paper is to know the viability of anaerobic bacteria from beef cattle feces in liquid medium incubated at temperature 25oC and 39oC aims to apply as biogas starter. The research was done by the explorative method and the obtained data was analyzed descriptively. The anaerobic bacteria were grown in 98-5 medium and incubated at temperature 25oC and 39oC, observed for 2 months and the analysis was done weekly. The parameters observed were a number of anaerobic bacteria, biogas volume, and percentage of biogas. The results showed that at the beginning of incubation at temperature 25oC, the number of anaerobic bacteria 1,250 x 1010 cfu/mL, after incubating for 2 months, the number of anaerobic bacteria tend to decrease accumulatively reached 230x1010 cfu/mL, the volume of biogas production was 6 mL, the percentages of biogas production were CH4 = 0.0993%, CO2 = 1.1287%, N2 and O2 = 86.163%. At temperature 39oC, the number of anaerobic bacteria, in the beginning, accumulatively reached 585 x 1010 cfu/mL, after incubating for 2 months, the number of anaerobic bacteria decreased accumulatively reached 180x1010 cfu/mL, the volume of biogas production was 4 mL, the percentages of biogas production were CH4 = 0.134%, CO2 = 2.4714%, N2 and O2 = 89.4961%. It was concluded that an anaerobic bacterial of beef cattle feces incubated at temperature 39oC in a liquid medium generated a high survival and turn to be highly potential as a starter of biogas.

show abstract

Rumen bacteria at work: bioaugmentation strategies to enhance biogas production from cow manure

Abstract: A close look at the biotic interactions and their associations with abiotic factors might be valuable for evaluating rumen-related bioaugmentation applications.

Cited by 53 publications

References 38 publications

Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle Popillia japonica Newman (Coleoptera: Scarabaeidae)

Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle Popillia japonica Newman (Coleoptera: Scarabaeidae)

Enhancing methane production from anaerobic co‐digestion of cow manure and barley: Link between process parameters and microbial community dynamics

The Viability of anaerobic bacteria from beef cattle feces in liquid media

Contact Info

Product

Resources

About