Bacterial community structure transformed after thermophilically composting human waste in Haiti
Publication Date
June 01, 2017
Authors
Yvette M. Piceno, Gabrielle Pecora Black, Sasha Kramer, Monika Roy, et al
Volume
12
Issue
6
Pages
e0177626
DOI
https://dx.plos.org/10.1371/journal.pone.0177626
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0177626
Scopus
85019968129
Mendeley
http://www.mendeley.com/research/bacterial-community-structure-transformed-after-thermophilically-composting-human-waste-haiti
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Mendeley | Further Information

{"title"=>"Bacterial community structure transformed after thermophilically composting human waste in Haiti", "type"=>"journal", "authors"=>[{"first_name"=>"Yvette M.", "last_name"=>"Piceno", "scopus_author_id"=>"6603297197"}, {"first_name"=>"Gabrielle", "last_name"=>"Pecora-Black", "scopus_author_id"=>"57194416806"}, {"first_name"=>"Sasha", "last_name"=>"Kramer", "scopus_author_id"=>"55945400000"}, {"first_name"=>"Monika", "last_name"=>"Roy", "scopus_author_id"=>"57194410071"}, {"first_name"=>"Francine C.", "last_name"=>"Reid", "scopus_author_id"=>"55875540300"}, {"first_name"=>"Eric A.", "last_name"=>"Dubinsky", "scopus_author_id"=>"13605655000"}, {"first_name"=>"Gary L.", "last_name"=>"Andersen", "scopus_author_id"=>"7202552651"}], "year"=>2017, "source"=>"PLoS ONE", "identifiers"=>{"arxiv"=>"1311.1716", "issn"=>"19326203", "doi"=>"10.1371/journal.pone.0177626", "sgr"=>"85019968129", "scopus"=>"2-s2.0-85019968129", "isbn"=>"1111111111", "pmid"=>"28570610", "pui"=>"616529620"}, "id"=>"9f31c28b-aaab-39df-973d-fb921e883e03", "abstract"=>"Recycling human waste for beneficial use has been practiced for millennia. Aerobic (thermophilic) composting of sewage sludge has been shown to reduce populations of opportunistically pathogenic bacteria and to inactivate both Ascaris eggs and culturable Escherichia coli in raw waste, but there is still a question about the fate of most fecal bacteria when raw material is composted directly. This study undertook a comprehensive microbial community analysis of composting material at various stages collected over 6 months at two composting facilities in Haiti. The fecal microbiota signal was monitored using a high-density DNA microarray (PhyloChip). Thermophilic composting altered the bacterial community structure of the starting material. Typical fecal bacteria classified in the following groups were present in at least half the starting material samples, yet were reduced below detection in finished compost: Prevotella and Erysipelotrichaceae (100% reduction of initial presence), Ruminococcaceae (98-99%), Lachnospiraceae (83-94%, primarily unclassified taxa remained), Escherichia and Shigella (100%). Opportunistic pathogens were reduced below the level of detection in the final product with the exception of Clostridium tetani, which could have survived in a spore state or been reintroduced late in the outdoor maturation process. Conversely, thermotolerant or thermophilic Actinomycetes and Firmicutes (e.g., Thermobifida, Bacillus, Geobacillus) typically found in compost increased substantially during the thermophilic stage. This community DNA-based assessment of the fate of human fecal microbiota during thermophilic composting will help optimize this process as a sanitation solution in areas where infrastructure and resources are limited.", "link"=>"http://www.mendeley.com/research/bacterial-community-structure-transformed-after-thermophilically-composting-human-waste-haiti", "reader_count"=>13, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Researcher"=>3, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>6, "Student > Bachelor"=>2}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Researcher"=>3, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>6, "Student > Bachelor"=>2}, "reader_count_by_subject_area"=>{"Engineering"=>1, "Unspecified"=>1, "Environmental Science"=>5, "Biochemistry, Genetics and Molecular Biology"=>1, "Medicine and Dentistry"=>1, "Agricultural and Biological Sciences"=>2, "Physics and Astronomy"=>1, "Chemistry"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Chemistry"=>{"Chemistry"=>1}, "Physics and Astronomy"=>{"Physics and Astronomy"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>2}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>1}, "Environmental Science"=>{"Environmental Science"=>5}}, "group_count"=>0}

Scopus | Further Information

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