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1. Alkaline aided thermophiles pretreatment of waste activated sludge to increase short chain fatty acids production: Microbial community evolution by alkaline on hydrolysis and fermentation

Author:
Chun-Xue Yang; Shuai Zhao; Ze-Chong Guo; Wen-Zong Liu; Ling Wang; Shao-Peng Yu; Bao-Ling Liu; Xue Cong
Source:
Environmental research 2020 v.186 pp. 109503
ISSN:
0013-9351
Subject:
Acidobacteria; Caloramator; acidification; activated sludge; chemical oxygen demand; fermentation; heat tolerance; hydrolysis; microbial communities; proteins; proteolysis; short chain fatty acids; thermophilic bacteria
Abstract:
... Adding alkaline into an anaerobic waste activated sludge (WAS) fermentation with thermophilic bacteria pretreatment could efficiently improve short-chain fatty acids (SCFAs) accumulation to 3550 ± 120 mg COD/L. The acidification rate in combined test was 21.2%, while that was 15.6% and 10.7% in sole thermophilic bacteria pretreatment and control tests respectively. Four distinct groups of microbes ...
DOI:
10.1016/j.envres.2020.109503

2. Application of rumen microbes to enhance food waste hydrolysis in acidogenic leach-bed reactors

Author:
Bing Hua Yan; Ammaiyappan Selvam; Jonathan W.C. Wong
Source:
Bioresource technology 2014 v.168 pp. 64-71
ISSN:
0960-8524
Subject:
Bifidobacterium thermacidophilum; Caloramator; Enterobacter; biochemical pathways; butyrates; cattle manure; chemical oxygen demand; ethanol; food waste; hydrolysis; leaching; methane; methane production; nitrogen content; phylogeny; rumen microorganisms; sludge
Abstract:
... Effect of rumen microorganisms on hydrolysis of food waste in leach bed reactor (LBR) was investigated. LBRs were inoculated (20%, w/w) with cow manure and anaerobically digested sludge at different ratios, 0:1 (LBR-A), 1:3 (LBR-B), 1:1 (LBR-C), 3:1 (LBR-D) and 1:0 (LBR-E). High volatile solids (VS) conversion efficiency of 68% was achieved in LBR-E. Compared with LBR-A, chemical oxygen demand, to ...
DOI:
10.1016/j.biortech.2014.03.085

3. Biochar increases arsenic release from an anaerobic paddy soil due to enhanced microbial reduction of iron and arsenic

Author:
Ning Wang; Xi-Mei Xue; Albert L. Juhasz; Zhi-Zhou Chang; Hong-Bo Li
Source:
Environmental pollution 2017 v.220 pp. 514-522
ISSN:
0269-7491
Subject:
Caloramator; aluminum; aluminum oxide; anaerobic conditions; arsenic; bacteria; biochar; community structure; fractionation; genes; iron; iron oxides; paddy soils; quantitative polymerase chain reaction; rice straw; slurries; soil microorganisms; soil solution
Abstract:
... Previous studies have shown that biochar enhances microbial reduction of iron (Fe) oxyhydroxide under anaerobic incubation. However, there is a lack of data on its influence on arsenic (As) release from As-contaminated paddy soils. In this study, paddy soil slurries (120 mg As kg⁻¹) were incubated under anaerobic conditions for 60 days with and without the addition of biochar (3%, w/w) prepared fr ...
DOI:
10.1016/j.envpol.2016.09.095

4. Biotechnological products in batch reactors obtained from cellulose, glucose and xylose using thermophilic anaerobic consortium

Author:
V. Silva; R.P. Ratti; I.K. Sakamoto; M.V.F. Andrade; M.B.A. Varesche
Source:
Renewable energy 2018 v.125 pp. 537-545
ISSN:
0960-1481
Subject:
Caloramator; Clostridium; Fervidobacterium; Thermoanaerobacter ethanolicus; Thermoanaerobacterium; acetic acid; anaerobes; bacteria; biomass; cellulose; energy; enzymes; ethanol; ethanol production; fuel production; glucose; lignocellulose; methane; pH; pentoses; renewable energy sources; xylose
Abstract:
... Lignocellulosic residues used for biofuel production is an alternative source to increase the energy supply. However, the cellulose found in this biomass must be made available in fermentable sugars, requiring a complex enzymatic mechanism only found in specific microorganisms. Some thermophilic and anaerobic bacteria of the Clostridium species are able to produce cellulolytic enzymes and metaboli ...
DOI:
10.1016/j.renene.2018.02.124

5. Caloramator boliviensis sp. nov., a thermophilic, ethanol-producing bacterium isolated from a hot spring

Author:
Carla Crespo; Tania Pozzo; Eva Nordberg Karlsson; Maria Teresa Alvarez; Bo Mattiasson
Source:
International journal of systematic and evolutionary microbiology 2012 v.62 no.Pt 7 pp. 1679-1686
ISSN:
1466-5034
Subject:
Caloramator; DNA; acetates; arabinose; carbon dioxide; carboxymethylcellulose; cellobiose; ethanol; ethanol production; fatty acids; fermentation; fructose; galactose; glucose; glycerol; hot springs; hydrogen; lactose; maltose; mannose; new species; nucleotide sequences; pH; phosphatidylethanolamines; phylogeny; propionic acid; ribosomal RNA; sediments; sequence homology; sucrose; thermophilic bacteria; xylan; xylose; yeast extract; Bolivia
Abstract:
... A novel moderately thermophilic, anaerobic, ethanol-producing bacterial strain, 45BT, was isolated from a mixed sediment water sample collected from a hot spring at Potosi, Bolivia. The cells were straight to slightly curved rods approximately 2.5 µm long and 0.5 µm wide. The strain was Gram-stain-variable, spore-forming and monotrichously flagellated. Growth of the strain was observed at 45–65 °C ...
DOI:
10.1099/ijs.0.032664-0

6. Clostridium species diversity in gut microbiota of patients with renal failure

Author:
Siamak Amini Khiabani; Setareh Haghighat; Hamid Tayebi Khosroshahi; Mohammad Asgharzadeh; Hossein Samadi Kafil
Source:
Microbial pathogenesis 2022 v.169 pp. 105667
ISSN:
0882-4010
Subject:
Acidaminobacter; Caloramator; Clostridium celatum; digestive tract; hemostasis; intestinal microorganisms; intestines; kidneys; metabolites; pathogenesis; renal failure; species diversity
Abstract:
... The Pathology of digestive tract has long been known to be correlated with chronic kidney disease (CKD). The member of the major Firmicutes phylum especially Clostridium subcluster XIVa altered quantitatively and qualitatively in the gut microbiota of patients with End Stage Renal Disease (ESRD) and CKD. Therefore, in this study, the abundance of the species of Clostridium genus of Firmicutes phyl ...
DOI:
10.1016/j.micpath.2022.105667

7. Community Analysis of Plant Biomass-Degrading Microorganisms from Obsidian Pool, Yellowstone National Park

Author:
Tatiana A. Vishnivetskaya; Scott D. Hamilton-Brehm; Mircea Podar; Jennifer J. Mosher; Anthony V. Palumbo; Tommy J. Phelps; Martin Keller; James G. Elkins
Source:
Microbial ecology 2015 v.69 no.2 pp. 333-345
ISSN:
0095-3628
Subject:
Anaerobacter; Caldicellulosiruptor; Caloramator; Clostridium; Juncus; Panicum virgatum; Populus; Thermoanaerobacter; biofuels; biomass; carbon; cellulolytic microorganisms; energy; enzymes; genes; heat tolerance; hot springs; lignocellulose; microbial activity; microbial communities; models; national parks; nucleotide sequences; ribosomal RNA; sediments; temperature; vegetation; xylan
Abstract:
... The conversion of lignocellulosic biomass into biofuels can potentially be improved by employing robust microorganisms and enzymes that efficiently deconstruct plant polysaccharides at elevated temperatures. Many of the geothermal features of Yellowstone National Park (YNP) are surrounded by vegetation providing a source of allochthonic material to support heterotrophic microbial communities adapt ...
DOI:
10.1007/s00248-014-0500-8

8. Deep sequencing reveals changes in prokaryotic taxonomy and functional diversity of pit muds in different distilleries of China

Author:
Qiangchuan Hou; Yurong Wang; Hui Ni; Wenchao Cai; Wenhui Liu; Shaoyong Yang; Zhendong Zhang; Chunhui Shan; Zhuang Guo
Source:
Annals of microbiology 2022 v.72 no.1 pp. 12
ISSN:
1590-4261
Subject:
Aminobacterium; Caloramator; Clostridium; Lactobacillus; Methanobacteria; Methanoculleus; Methanosarcina; Ruminococcus; Syntrophomonas; community structure; fermentation; functional diversity; genes; methanogens; microbial communities; taxonomy; China
Abstract:
... PURPOSE: The microbial community in the pit mud correlated closely with the quality of the final product of Chinese strong-flavored Baijiu (CSFB). However, environmental conditions and brewing processes can vary by region and distilleries. This may lead to differences in microbial composition and function in pit mud. Therefore, revealing the features of the pit mud microbial community structure an ...
DOI:
10.1186/s13213-022-01671-x

9. Domination of pit mud microbes in the formation of diverse flavour compounds during Chinese strong aroma-type Baijiu fermentation

Author:
Jiangjing Gao; Guoying Liu; Anjun Li; Chenchen Liang; Cong Ren; Yan Xu
Source:
Lebensmittel-Wissenschaft + Technologie 2021 v.137 pp. 110442
ISSN:
0023-6438
Subject:
Caloramator; anaerobes; esterification; fermentation; flavor; pH; synergism
Abstract:
... The pit mud microbes are tightly correlated with the quality of Chinese strong aroma-type Baijiu. However, it is still unclear the explicit contributions of pit mud microbes to flavour formation. Through down-scaled fermentation with or without pit mud, we found that 85 genera from pit mud, dominating by Caproiciporducens, Caloramator, Sedimentibacter and Caldicoprobacter, migrated into fermented ...
DOI:
10.1016/j.lwt.2020.110442

10. Effects of ultrasonic-assisted thermophilic bacteria pretreatment on hydrolysis, acidification, and microbial communities in waste-activated sludge fermentation process

Author:
Chunxue Yang; Aijuan Zhou; Zhangwei He; Lei Jiang; Zechong Guo; Aijie Wang; Wenzong Liu
Source:
Environmental science and pollution research international 2015 v.22 no.12 pp. 9100-9109
ISSN:
0944-1344
Subject:
Caloramator; Geobacillus; acidification; chemical oxygen demand; enzymes; fermentation; fluorescence; fluorescence emission spectroscopy; hydrolysis; microbial communities; pretreatment; sequence analysis; sludge; synergism; thermophilic bacteria; ultrasonics; volatile fatty acids
Abstract:
... A novel pretreatment method combining ultrasonic with thermophilic bacteria (Geobacillus sp. G1) was employed to pretreat waste-activated sludge (WAS) for enhancing the WAS hydrolysis and subsequent volatile fatty acids (VFAs) production. The soluble protein and carbohydrate were mostly released from intracellular ultrasonic-assisted Geobacillus sp. G1 pretreatment, and accumulated to 917 ± 70 and ...
DOI:
10.1007/s11356-014-3985-2

11. Electrochemical and phylogenetic analyses of current-generating microorganisms in a thermophilic microbial fuel cell

Author:
Qian Fu; Hajime Kobayashi; Hideo Kawaguchi; Javier Vilcaez; Tatsuki Wakayama; Haruo Maeda; Kozo Sato
Source:
Journal of bioscience and bioengineering 2013 v.115 pp. 268-271
ISSN:
1389-1723
Subject:
Caloramator; bacteria; electricity; electrochemistry; microbial fuel cells; phylogeny; thermophilic microorganisms
Abstract:
... To explore diversity of thermophilic exoelectrogens, a thermophilic microbial fuel cell was constructed. Population analysis of the anodic microorganisms suggested possible involvement of Caloramator-related bacteria in electricity generation. Pure culture of Caloramator australicus showed electricity-generating ability, indicating that the bacterium is a new thermophilic exoelectrogen. ...
DOI:
10.1016/j.jbiosc.2012.10.007

12. Ethanol production by continuous fermentation of d-(+)-cellobiose, d-(+)-xylose and sugarcane bagasse hydrolysate using the thermoanaerobe Caloramator boliviensis

Author:
Carla F. Crespo; Malik Badshah; Maria T. Alvarez; Bo Mattiasson
Source:
Bioresource technology 2012 v.103 no.1 pp. 186-191
ISSN:
0960-8524
Subject:
Caloramator; bacteria; continuous fermentation; ethanol; ethanol production; feedstocks; hexoses; hydrolysates; immobilized cells; pentoses; sugarcane bagasse; temperature
Abstract:
... The recently isolated anaerobic bacterium Caloramator boliviensis with an optimum growth temperature of 60°C can efficiently convert hexoses and pentoses into ethanol. When fermentations of pure sugars and a pentose-rich sugarcane bagasse hydrolysate were carried out in a packed bed reactor with immobilized cells of C. boliviensis, more than 98% of substrates were converted. Ethanol yields of 0.40 ...
DOI:
10.1016/j.biortech.2011.10.020
PubMed:
22055102

13. Exploration of the key functional strains from an azo dye degradation microbial community by DGGE and high-throughput sequencing technology

Author:
Yan Chen; Lizhen Zhang; Linlin Feng; Guotao Chen; Yuanxiu Wang; Zhijun Zhai; Qinghua Zhang
Source:
Environmental science and pollution research international 2019 v.26 no.24 pp. 24658-24671
ISSN:
0944-1344
Subject:
Anoxybacillus; Bacillus (bacteria); Caloramator; Clostridium; amino acids; azo dyes; bacteria; decolorization; denaturing gradient gel electrophoresis; high-throughput nucleotide sequencing; laccase; microbial communities; polymerase chain reaction; proteins; synergism
Abstract:
... This study investigated a previously developed thermophilic microbial community with the ability to effectively degrade azo dyes. To identify the key microbes of this microbial community, a dilution-to-extinction approach was combined with polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and Illumina high-throughput sequencing technology (HTST). Strains belonging to Tep ...
DOI:
10.1007/s11356-019-05781-z

14. Exploring prevalence of potential pathogens and fecal indicators in geographically distinct river systems through comparative metagenomics

Author:
Aparna Chakkamadathil Rajeev; Nishi Sahu; Kumar Arvind; Maushumi Deori; Tony Grace; Suma Arun Dev; Vijay Pal Yadav; Ilora Ghosh
Source:
Environmental pollution 2021 v.282 pp. 117003
ISSN:
0269-7491
Subject:
Acinetobacter; Arcobacter; Bacteroides; Caloramator; Clostridium; Flavobacterium; Opitutus; Pseudomonas; Streptomyces; metagenomics; microbiome; multivariate analysis; pH; pollution; public health; riparian areas; risk; river water; rivers; salinity; sewage; temperature; variance; India
Abstract:
... Microbial communities are considered as vital members to reflect the health of a riverine system. Among them, pathogenic and fecal indicators imply health risks involved with potability of river water. The present study explores the diverse microbial communities, distribution pattern of potential pathogens, and fecal indicators between the geographically distinct Himalayan and Peninsular river sys ...
DOI:
10.1016/j.envpol.2021.117003

15. Freezing/thawing pretreatment coupled with biological process of thermophilic Geobacillus sp. G1: Acceleration on waste activated sludge hydrolysis and acidification

Author:
Chunxue Yang; Wenzong Liu; Zhangwei He; Sangeetha Thangavel; Ling Wang; Aijuan Zhou; Aijie Wang
Source:
Bioresource technology 2015 v.175 pp. 509-516
ISSN:
0960-8524
Subject:
Caloramator; Clostridium; Geobacillus; acidification; activated sludge; bacteria; chemical oxygen demand; fluorescence; fluorescence emission spectroscopy; freezing; hydrolysis; sequence analysis; short chain fatty acids; synergism; thawing
Abstract:
... A novel pretreatment method combining freezing/thawing with Geobacillus sp. G1 was employed to pretreat waste activated sludge (WAS) for enhancing the WAS hydrolysis and subsequent short-chain fatty acids (SCFAs) production. Results showed that freezing/thawing combined with Geobacillus sp. G1 pretreatment achieved the maximal concentrations of soluble protein from 40±6mg COD/L (non-pretreated) to ...
DOI:
10.1016/j.biortech.2014.10.154

16. High organic loading rate on thermophilic hydrogen production and metagenomic study at an anaerobic packed-bed reactor treating a residual liquid stream of a Brazilian biorefinery

Author:
Antônio Djalma Nunes Ferraz Júnior; Claudia Etchebehere; Marcelo Zaiat
Source:
Bioresource technology 2015 v.186 pp. 81-88
ISSN:
0960-8524
Subject:
Caloramator; Clostridium; Megasphaera; Oxobacter; Thermoanaerobacterium; biorefining; carbohydrates; hydrogen production; metagenomics; microbial communities; polyethylene
Abstract:
... This study evaluated the influence of a high organic loading rate (OLR) on thermophilic hydrogen production at an up-flow anaerobic packed-bed reactor (APBR) treating a residual liquid stream of a Brazilian biorefinery. The APBR, filled with low-density polyethylene, was operated at an OLR of 84.2kg-CODm−3d−1. This value was determined in a previous study. The maximum values of hydrogen production ...
DOI:
10.1016/j.biortech.2015.03.035

17. High temperature simultaneous saccharification and fermentation of starch from inedible wild cassava (Manihot glaziovii) to bioethanol using Caloramator boliviensis

Author:
Anselm P. Moshi; Ken M.M. Hosea; Emrode Elisante; G. Mamo; Bo Mattiasson
Source:
Bioresource technology 2015 v.180 pp. 128-136
ISSN:
0960-8524
Subject:
Caloramator; Manihot glaziovii; acclimation; alpha-amylase; batch fermentation; bioethanol; carbon dioxide; cassava; cassava flour; cassava starch; cyanides; ethanol; ethanol production; gases; glucose; hydrogen; hydrolysates; monitoring; saccharification; starch; temperature
Abstract:
... The thermoanaerobe, Caloramator boliviensis was used to ferment starch hydrolysate from inedible wild cassava to ethanol at 60°C. A raw starch degrading α-amylase was used to hydrolyse the cassava starch. During fermentation, the organism released CO2 and H2 gases, and Gas Endeavour System was successfully used for monitoring and recording formation of these gaseous products. The bioethanol produc ...
DOI:
10.1016/j.biortech.2014.12.087

18. Hydrothermal vents in Lake Tanganyika harbor spore-forming thermophiles with extremely rapid growth

Author:
Lars Elsgaard; Daniel Prieur
Source:
Journal of Great Lakes research 2011 v.37 no.1 pp. 203-206
ISSN:
0380-1330
Subject:
Caloramator; Thermobrachium celere; bacteria; culture media; endospores; nucleotide sequences; pH; peptones; ribosomal DNA; temperature; thermophilic microorganisms; yeast extract; Eastern Africa; Lake Tanganyika
Abstract:
... A thermophilic anaerobic bacterium was isolated from a sublacustrine hydrothermal vent site in Lake Tanganyika (East Africa) with recorded fluid temperatures of 66–103°C and pH values of 7.7–8.9. The bacterium (strain TR10) was rod-shaped, about 1 by 5μm in size, and readily formed distal endospores. Based on the 16S rDNA sequence the novel strain was homologous to Thermobrachium celere and Calora ...
DOI:
10.1016/j.jglr.2010.11.019

19. Link between characteristics of Fe(III) oxides and critical role in enhancing anaerobic methanogenic degradation of complex organic compounds

Author:
Yapeng Tang; Yang Li; Mingqian Zhang; Pu Xiong; Lifen Liu; Yongming Bao; Zhiqiang Zhao
Source:
Environmental research 2021 v.194 pp. 110498
ISSN:
0013-9351
Subject:
Caloramator; Enterococcus; Syntrophus; Trichococcus; X-ray diffraction; X-ray photoelectron spectroscopy; acetates; electron transfer; ferrihydrite; hematite; magnetite; methane; methane production; microbial communities; phenol; research; sludge
Abstract:
... Fe(III) oxides have been investigated to accelerate anaerobic methanogenic degradation of complex organic compounds. However, the critical role linked to the characteristics of different types of Fe(III) oxides is still unclear. Study presented here performed a side-by-side comparison of four types of Fe(III) oxides including Fe(III)-citrate, ferrihydrite, hematite and magnetite to evaluate their ...
DOI:
10.1016/j.envres.2020.110498

20. Protist-enhanced survival of a plant growth promoting rhizobacteria, Azospirillum sp. B510, and the growth of rice (Oryza sativa L.) plants

Author:
Rasit Asiloglu; Keiko Shiroishi; Kazuki Suzuki; Oguz Can Turgay; Jun Murase; Naoki Harada
Source:
Applied soil ecology 2020 v.154 pp. 103599
ISSN:
0929-1393
Subject:
Agrobacterium; Azospirillum; Burkholderia; Caloramator; Massilia; Oryza sativa; Ralstonia; Rhodoferax; Sphingobacteriia; Sphingomonadales; bacterial communities; community structure; nitrogen; phytomass; plant growth; protists; rhizosphere bacteria; rice; soil ecology; soil sterilization; sustainable agriculture
Abstract:
... Application of plant growth promoting rhizo-bacteria (PGPR) is a promising method for sustainably increasing the plant growth; however, survival of PGPR is the most important factor limiting its efficiency. We studied the effects of heterotrophic protists on the survival of introduced PGPR, Azospirillum sp. B510, on indigenous bacterial community structure, and on the growth of the rice (Oryza sat ...
DOI:
10.1016/j.apsoil.2020.103599