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1. Metataxonomic characterization of an autochthonous and allochthonous microbial consortium involved in a two-stage anaerobic batch reactor applied to hydrogen and methane production from sugarcane bagasse

Author:
Camila A.B. Silva Rabelo; Franciele P. Camargo; Isabel Kimiko Sakamoto; Maria Bernadete A. Varesche
Source:
Enzyme and microbial technology 2023 v.162 pp. 110119
ISSN:
0141-0229
Subject:
Enterococcus; Methanoculleus; Methanosaeta; batch systems; energy metabolism; enzymes; genes; hydrogen; hydrolysis; inoculum; metabolites; methane; methane production; sugarcane bagasse
Abstract:
... Enzymatically pre-treated sugarcane bagasse (SCB) was used as substrate for sequential production of hydrogen (H₂) and methane (CH₄). In stage I, SCB was used by autochthonous bacteria, such as Enterococcus (42.4 % relative abundance) and Paraclostridium (16.8 %) for H₂ production (166.8 mL H₂/L), while the metabolites accumulated at the end of this stage (9140.5 mg HAc/L) were used by allochthono ...
DOI:
10.1016/j.enzmictec.2022.110119

2. The positive correlation of antioxidant activity and prebiotic effect about oat phenolic compounds

Author:
Yunzhen Zhang; Yueqin Li; Xiaxia Ren; Xin Zhang; Zufang Wu; Lianliang Liu
Source:
Food chemistry 2023 v.402 pp. 134231
ISSN:
0308-8146
Subject:
Avena nuda; Bacteroides; Bifidobacterium; Clostridium; Enterococcus; Lactobacillus; antioxidant activity; antioxidants; butanol; ethyl acetate; fermentation; fluorescence; food chemistry; hybridization; intestinal microorganisms; oats; phenolic compounds; prebiotics
Abstract:
... The correlation of antioxidant activity and prebiotic effect about oat phenolic compounds was invested, while there exists limited studies. Free and bound phenolic compounds were separated from ethyl acetate, n-butanol and aqueous fractions. Fluorescence in situ hybridization was used to investigate gut microbiota of in vitro fermentation samples. The results showed that ethyl acetate fraction pos ...
DOI:
10.1016/j.foodchem.2022.134231

3. Alteration of gut bacteria composition among individuals with asymptomatic Blastocystis infection: A case-control study

Author:
Sahar Behboud; Kavous Solhjoo; Saiedeh Erfanian; Majid Pirestani; Amir Abdoli
Source:
Microbial pathogenesis 2022 v.169 pp. 105639
ISSN:
0882-4010
Subject:
Bacteroides fragilis; Bifidobacterium; Blastocystis; Enterococcus; Escherichia coli; Lactobacillus; Ruminococcus productus; case-control studies; cross-sectional studies; digestive tract; ecosystems; gastrointestinal system; humans; intestinal microorganisms; parasites; pathogenesis; quantitative polymerase chain reaction
Abstract:
... The gut microbiota consists a diverse and complex ecosystem that is involved in beneficial functions as well as potentially harmful conditions for human. Blastocystis sp. is a common parasite of the digestive tract of animals and humans; however, limited data is available concerning the association of asymptomatic Blastocystis infection and gut bacteria composition. Hence, in this cross-sectional ...
DOI:
10.1016/j.micpath.2022.105639

4. Altitude-adaption of gut microbiota in Tibetan chicken

Author:
Xiaxia Du; Fugui Li; Fanli Kong; Zhifu Cui; Diyan Li; Yan Wang; Qing Zhu; Gang Shu; Yaofu Tian; Yao Zhang; Xiaoling Zhao
Source:
Poultry science 2022 v.101 no.9 pp. 101998
ISSN:
0032-5791
Subject:
Actinobacteria; Enterococcus; Lactococcus; Paenibacillus; Proteobacteria; Sporosarcina; altitude; atmospheric pressure; biodegradation; biosynthesis; body temperature; cecum; chickens; cold; energy intake; genes; ileum; intestinal microorganisms; microbiome; oxygen; signal transduction; xenobiotics
Abstract:
... Low oxygen levels and extremely cold weather in high-altitude environments requires more energy intake to maintain body temperature in animals. However, little is known about the characteristics of cecal and ileac microbiota in Tibetan chicken and how the high and low altitude environments affect the gut microbiota communities in Tibetan chicken. In the present study, In the present study, Tibetan ...
DOI:
10.1016/j.psj.2022.101998

5. Analysis of virulence genes, drug resistance detection, and pathogenicity in Enterococcus from farm animals

Author:
Xinyun Kang; Yanqin Wei; Xiaofei Fan; Shuangyan Luo; Xiaofeng Luo; Sijun Zhao; Guiqin Wang
Source:
Microbial pathogenesis 2022 v.171 pp. 105745
ISSN:
0882-4010
Subject:
Enterococcus; cattle; cefotaxime; ciprofloxacin; drug resistance; farms; genes; heart; lethal dose 50; levofloxacin; liver; paper; pathogenesis; sulfamethoxazole; vancomycin; virulence
Abstract:
... This study aimed to investigate the presence of eight virulence genes (ace, asa1, esp, efaA, gelE, cylA, agg, fsr) in Enterococcus from a variety of animals and to explore the drug resistance and pathogenicity. This could provide a theoretical basis for clinical treatment of Enterococcus infections. Anal swabs from pigs, chickens, cattle, and dogs in farms and pet hospitals were collected for Ente ...
DOI:
10.1016/j.micpath.2022.105745

6. Antibacterial activity potential of leaf extracts of Blepharis maderaspatensis and Ziziphus oenoplia against antibiotics resistant Pseudomonas strains isolated from pus specimens

Author:
Chokkalingam Mohanasundari; Sorimuthu Anbalagan; Kesavan Srinivasan; Mathiyazhagan Narayanan; Mythili Saravanan; Sulaiman Ali Alharbi; Saleh H. Salmen; Tran Cam Nhung; Arivalagan Pugazhendhi
Source:
Process biochemistry 2022 v.118 pp. 24-31
ISSN:
1359-5113
Subject:
Blepharis; Enterococcus; Klebsiella; Micrococcus; Staphylococcus; Ziziphus; antibacterial properties; antibiotic resistance; drug therapy; leaves; methanol; solvents
Abstract:
... Knowing the antibiotic resistance profile of pathogenic bacteria is essential to finding an appropriate remedy for these issues by sourcing antibacterial agents from plants. The present study exposes the bactericidal potential of different leaf extracts of Blepharis maderaspatensis and Ziziphus oenoplia against multi drug resistant bacterial strains enumerated from pus specimens at a secondary car ...
DOI:
10.1016/j.procbio.2022.04.008

7. Antimicrobial resistance dissemination associated with intensive animal production practices in Argentina: A systematic review and meta-analysis

Author:
Barbara Prack McCormick; María P. Quiroga; Verónica E. Álvarez; Daniela Centrón; Pablo Tittonell
Source:
Revista argentina microbiología 2022 pp. -
ISSN:
0325-7541
Subject:
Campylobacter; Enterococcus; Escherichia coli; Salmonella; ampicillin; antibiotic resistance; beef cattle; cefotaxime; chickens; feedlots; meta-analysis; monitoring; multiple drug resistance; nalidixic acid; politics; streptomycin; swine; systematic review; tetracycline; Argentina
Abstract:
... Abuse and misuse of antimicrobial agents has accelerated the spread of antimicrobial-resistant bacteria. The association between antimicrobial-resistant infections in humans and antimicrobial use in agriculture is complex, but well-documented. This study provides a systematic review and meta-analysis of the dissemination of antimicrobial resistance (AMR) to antimicrobials defined as critically imp ...
DOI:
10.1016/j.ram.2022.07.001

8. Antimicrobial susceptibility testing determined by Alfred 60/AST (Alifax®) in a multi-sites lab: performance's evaluation and optimization of workflow

Author:
R. Cupaiolo; S. Cherkaoui; G. Serrano; N. Dauby; A. Georgala; S. Blumental; E. Maillart; M. Hites; M. Hallin; D. Martiny
Source:
Journal of microbiological methods 2022 v.194 pp. 106433
ISSN:
0167-7012
Subject:
Enterococcus; antibiotic resistance; automation; bacteremia; blood; blood flow; blood volume; clindamycin; disk diffusion antimicrobial test; meropenem
Abstract:
... New techniques are needed to speed-up the identification and antimicrobial susceptibility testing (AST) of bacteria associated with bloodstream infections. Alfred 60/AST (Alifax®, Polverara, Italy) performs AST by light scattering directly from positive blood cultures. We evaluated Alfred 60/AST performances for 4 months. Each new episode of bacteraemia was included and AST were compared to either ...
DOI:
10.1016/j.mimet.2022.106433

9. Are blue flags a good indicator of the quality of sea water on beaches? An empirical analysis of the Western Mediterranean basin

Author:
Fernando Merino; María A. Prats
Source:
Journal of cleaner production 2022 v.330 pp. 129865
ISSN:
0959-6526
Subject:
Enterococcus; Escherichia coli; European Union; empirical research; environmental education; intestines; public health; seawater; tourism; tourists; water quality; France; Italy; Mediterranean region; Spain
Abstract:
... Beach tourism in an important industry in many countries, and in the Mediterranean it supposes an extra pressure on the seawater quality. Concern about this aspect led the European Union to issue a first directive on the quality of bathing water in 1976 and modify it in 2006. This regulation establishes a mandatory control, in all European Union (EU) countries, of the proliferation of bacteria (sp ...
DOI:
10.1016/j.jclepro.2021.129865

10. Assessing cross‐laboratory performance for quantifying coliphage using EPA Method 1642

Author:
Amity G. Zimmer‐Faust; John F. Griffith; Joshua A. Steele; Laralyn Asato; Tania Chiem; Samuel Choi; Arturo Diaz; Joe Guzman; Michele Padilla; Jennipher Quach‐Cu; Victor Ruiz; Bryan Santos; Mary Woo; Stephen B. Weisberg
Source:
Journal of applied microbiology 2022 v.133 no.2 pp. 340-348
ISSN:
1364-5072
Subject:
Enterococcus; United States Environmental Protection Agency; coliphages; health promotion; risk; water quality
Abstract:
... AIMS: Widespread adoption of the new U.S. Environmental Protection Agency (USEPA) Method 1642 for enumeration of coliphage in recreational water requires demonstration that laboratories consistently meet internal method performance goals and yield results that are consistent across laboratories. METHODS AND RESULTS: Here we assess the performance of six laboratories processing a series of blind wa ...
DOI:
10.1111/jam.15523

11. Assessment of the Microbiological Quality and Biochemical Parameters of Traditional Hard Xinotyri Cheese Made from Raw or Pasteurized Goat Milk

Author:
Eleni C. Pappa; Thomas G. Bontinis; John Samelis; Kyriaki Sotirakoglou
Source:
Fermentation 2022 v.8 no.1 pp. -
ISSN:
2311-5637
Subject:
Enterococcus; Listeria; Salmonella; fermentation; goat milk; hydrophilicity; hydrophobicity; lactic acid; microbiological quality; milk; nitrogen; pH; pasteurization; pasteurized milk; peptides; proteolysis; raw milk; water solubility
Abstract:
... Traditional hard Xinotyri cheese was manufactured using raw or pasteurized goat milk, without starter cultures, and the changes in microbiological and biochemical characteristics were studied during ripening and storage. Mesophilic lactic acid bacteria (LAB) predominated (>8.5 log CFU/g) in freshly fermented Xinotyri cheeses (pH 4.5–4.6), regardless of milk pasteurization. Enterobacteria, pseudomo ...
DOI:
10.3390/fermentation8010020

12. Association of Gut Microbiota with Inflammatory Bowel Disease and COVID-19 Severity: A Possible Outcome of the Altered Immune Response

Author:
Anju Kaushal; Rashed Noor
Source:
Current microbiology 2022 v.79 no.6 pp. 184
ISSN:
0343-8651
Subject:
Bacteroidaceae; COVID-19 infection; Enterococcus; Lachnospiraceae; RNA; Ruminococcaceae; Serratia; Severe acute respiratory syndrome coronavirus 2; Staphylococcus; Streptococcus; brain; chemokines; digestive system; disease progression; dysbiosis; homeostasis; immune response; inflammatory bowel disease; intestinal microorganisms; kidneys; metabolites; microbiome; prognosis; secretion; therapeutics; viruses
Abstract:
... Inflammatory bowel disease could be induced by SARS-CoV-2, involved in alteration of gut microbiota during the respiratory viral infection. Presence of viral RNA in fecal samples for longer period, even after the clearance of the virus from respiratory tract, is suggestive of dysbiosis leading to the poor prognosis of COVID-19 in hospitalized patients. Gut microbiome (GM) plays a significant role ...
DOI:
10.1007/s00284-022-02877-7

13. Bacteria from bovine clinical mastitis showed multiple drug resistance

Author:
Sudhakar P. Awandkar; Mahesh B. Kulkarni; Narendra V. Khode
Source:
Veterinary research communications 2022 v.46 no.1 pp. 147-158
ISSN:
0165-7380
Subject:
Acinetobacter; Enterococcus; Holstein; Jersey; Pseudomonas; Streptococcus uberis; aminoglycosides; beta-lactamase; cephalosporins; chloramphenicol; cross-sectional studies; dairy industry; lactation; milk; monsoon season; multiple drug resistance; public health; quinolones; udders; vancomycin; veterinary medicine
Abstract:
... Mastitis, which often manifests as udder infection in dairy animals, is of great concern as it affects public health and results in heavy economic losses to the dairy industry. A hospital-based cross-sectional study was conducted to determine the cultivable bacterial species associated with bovine clinical mastitis and their resistance patterns towards different antimicrobials. The milk samples fr ...
DOI:
10.1007/s11259-021-09838-8

14. Bacterial assemblages associated with Acropora palmata affected by white band disease in the Mexican region of the Caribbean and Gulf of Mexico

Author:
Joicye Hernández-Zulueta; Leopoldo Díaz-Pérez; José Q. García-Maldonado; Gabriela Georgina Nava-Martínez; Miguel Ángel García-Salgado; Fabián Alejandro Rodríguez-Zaragoza
Source:
Journal of sea research 2022 v.185 pp. 102230
ISSN:
1385-1101
Subject:
Acropora palmata; Clostridium; Desulfovibrio; Enterobacter; Enterococcus; Pleurocapsa; Pseudoalteromonas; Pseudomonas; Spirochaeta; Stenotrophomonas; Synechococcus; Tepidibacter; Vibrio; corals; genes; research; seawater; sediments; Caribbean; Caribbean Sea; Gulf of Mexico
Abstract:
... The bacterial assemblages associated with Acropora palmata from the Mexican Caribbean Sea and the Gulf of Mexico were analyzed by high throughput sequencing of the 16S rRNA gene. Samples were taken from four substrates: apparently healthy corals, corals with white band disease, and the seawater and sediment surrounding these corals. The bacterial assemblages showed no significant differences among ...
DOI:
10.1016/j.seares.2022.102230

15. Bacterial colonisation dynamics of household plastics in a coastal environment

Author:
Luke Lear; Daniel Padfield; Tirion Dowsett; Maia Jones; Suzanne Kay; Alex Hayward; Michiel Vos
Source:
Science of the total environment 2022 v.838 pp. 156199
ISSN:
0048-9697
Subject:
Enterococcus; Galleria mellonella; Serratia; antibiotic resistance; bacterial colonization; biofilm; community structure; estuaries; humans; insects; marine environment; models; mortality; polyethylene terephthalates; polypropylenes; virulence; wildlife
Abstract:
... Accumulation of plastics in the marine environment has widespread detrimental consequences for ecosystems and wildlife. Marine plastics are rapidly colonised by a wide diversity of bacteria, including human pathogens, posing potential risks to health. Here, we investigate the effect of polymer type, residence time and estuarine location on bacterial colonisation of common household plastics, inclu ...
DOI:
10.1016/j.scitotenv.2022.156199

16. Bacterial community dynamics on bats and the implications for pathogen resistance

Author:
Aoqiang Li; Zhongle Li; Wentao Dai; Katy L. Parise; Haixia Leng; Longru Jin; Sen Liu; Keping Sun; Joseph R. Hoyt; Jiang Feng
Source:
Environmental microbiology 2022 v.24 no.3 pp. 1484-1498
ISSN:
1462-2912
Subject:
Burkholderia; Corynebacterium; Enterococcus; Flavobacterium; Pseudogymnoascus destructans; Pseudomonas; Rhinolophus ferrumequinum; bacterial communities; body condition; community structure; fungi; pathogens; temperature; white-nose syndrome
Abstract:
... The bats skin microbiota plays an important role in reducing pathogen infection, including the deadly fungal pathogen Pseudogymnoascus destructans, the causative agent of white‐nose syndrome. However, the dynamic of skin bacterial communities response to environmental perturbations remains poorly described. We characterized skin bacterial community over time and space in Rhinolophus ferrumequinum, ...
DOI:
10.1111/1462-2920.15754

17. Bacteriocins Produced by LAB Isolated from Cheeses within the Period 2009–2021: a Review

Author:
Lorena Trejo-González; Ana-Estefanía Gutiérrez-Carrillo; Adriana-Inés Rodríguez-Hernández; Ma. del Rocío López-Cuellar; Norberto Chavarría-Hernández
Source:
Probiotics and antimicrobial proteins 2022 v.14 no.2 pp. 238-251
ISSN:
1867-1306
Subject:
Enterococcus; Lactobacillus; Lactococcus; Pediococcus; bacteriocins; food biopreservation; lactic acid; peptides; probiotics; surveys
Abstract:
... A survey is presented concerning original research articles published in well-reputed scientific journals on the isolation of lactic acid bacteria (LAB) from cheeses worldwide, where researchers evaluated the bacteriocin production by such isolates in searching for novel functional peptides that can exhibit potential for biotechnological applications. Seventy-one articles were published in the per ...
DOI:
10.1007/s12602-021-09825-0

18. Beach pollution from marine litter: Analysis with the DPSIR framework (driver, pressure, state, impact, response) in Tuscany, Italy

Author:
Ileana Federigi; Elena Balestri; Alberto Castelli; Davide De Battisti; Ferruccio Maltagliati; Virginia Menicagli; Marco Verani; Claudio Lardicci; Annalaura Carducci
Source:
Ecological indicators 2022 v.143 pp. 109395
ISSN:
1470-160X
Subject:
Enterococcus; One Health initiative; biomass; case studies; coastal zone management; data collection; databases; drainage; gastroenteritis; ingestion; marine debris; microbiological quality; models; pollution; risk; sand; sewage; shorelines; stakeholders; water currents; watersheds; Italy
Abstract:
... Beaches are affected by the accumulation of natural and anthropogenic material; however, this environmental issue has not yet been explored from a One Health perspective. In this paper, the conceptual framework of DPSIR (Drivers-Pressures-State-Impact-Response) was used to understand the beach-stranded material issue in a systemic way and a data-based classification for some environmental indicato ...
DOI:
10.1016/j.ecolind.2022.109395

19. Biochemical composition, antimicrobial and antifungal activities assessment of the fermented medicinal plants extract using lactic acid bacteria

Author:
Hamza Gadhoumi; E. L. Akrem Hayouni; Enriqueta Martinez-Rojas; Walid Yeddes; Moufida Saidani Tounsi
Source:
Archives of microbiology 2022 v.204 no.7 pp. 374
ISSN:
0302-8933
Subject:
Enterococcus; Escherichia coli; Lactobacillus acidophilus; Phytophthora infestans; Pseudomonas aeruginosa; Staphylococcus aureus; bioactive compounds; camphene; cineole; flavonoids; food preservation; headspace analysis; ingredients; lactic acid; lactic fermentation; plant extracts; polyphenols; shelf life
Abstract:
... To prevent foodborne diseases and extend shelf life, antimicrobial agents may be used in food to inhibit the growth of undesired microorganisms. The present study was aimed to determine the antimicrobial and antifungal activities of the fermented medicinal plants extract using Lactobacillus acidophilus ATCC 4356. The fermentation kinetic parameters, biochemical composition and the volatile compoun ...
DOI:
10.1007/s00203-022-02985-9

20. Bioremediation of a Sewage-Contaminated Tropical Swamp Through Bioaugmentation with a Microalgae-Predominant Microbial Consortium

Author:
Jaime E. Gutiérrez; Nohora Gutiérrez-Hoyos; Juan Sebastián Gutiérrez; Martha J. Vives; V. Sivasubramanian
Source:
Indian journal of microbiology 2022 v.62 no.2 pp. 307-311
ISSN:
0046-8991
Subject:
Enterococcus; bioaugmentation; bioreactors; decontamination; microalgae; phytoplankton; sewage; swamps; water reservoirs; Colombia
Abstract:
... Bioaugmentation has many applications as a bioremediation technique. It is usually performed by bacteria but microalgal consortia also have great potential for bioremediation. This study evaluated the ability of a microbial consortium with predominance of microalgae (MCPM) to decontaminate the water of the Mallorquín tropical swamp. The Mallorquín Swamp is a natural water reservoir, essential for ...
DOI:
10.1007/s12088-021-00990-y