Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3389/fmicb.2020.01616 http://hdl.handle.net/11449/200833 |
Resumo: | This study evaluated the impact of feeding regimes on process performance and inactivation of microorganisms during treatment of aquaculture waste with black soldier fly (BSF) larvae. In three treatments (T1–T3), a blend of reclaimed bread and aquaculture waste was used as substrate for BSF larvae. In T1, the substrate was inoculated with four subtypes of Salmonella spp. and Escherichia coli (both at 1% w/w), and offered only once, at the beginning of the 14-day trial. In T2 and T3, the substrate was supplied on three different days, with contaminated substrate provided only the first event in T2 and in all three events in T3. Provision of a lump sum feeding (T1) proved unfavorable for larval growth and process efficiency, but did not affect the microbial reduction effect. The total reduction in Salmonella spp. was approximately 6 log10 in T1 and T2, and 3.3 log10 in T3, while the total reduction in E. coli was approximately 4 log10 in T1 and T2, and 1.9 log10 in T3. After removing the larvae, the treatment residues were re-inoculated with Salmonella spp. and E. coli. It was found that the inactivation in both organisms continued in all treatments that originally contained BSF larvae (T1–T3), suggesting that antimicrobial substances may have been secreted by BSF larvae or by its associated microbiota. |
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Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae CompostingBSFecotechnologyEscherichia colihygienizationS. DublinS. TyphiS. TyphimuriumSalmonella SenftenbergThis study evaluated the impact of feeding regimes on process performance and inactivation of microorganisms during treatment of aquaculture waste with black soldier fly (BSF) larvae. In three treatments (T1–T3), a blend of reclaimed bread and aquaculture waste was used as substrate for BSF larvae. In T1, the substrate was inoculated with four subtypes of Salmonella spp. and Escherichia coli (both at 1% w/w), and offered only once, at the beginning of the 14-day trial. In T2 and T3, the substrate was supplied on three different days, with contaminated substrate provided only the first event in T2 and in all three events in T3. Provision of a lump sum feeding (T1) proved unfavorable for larval growth and process efficiency, but did not affect the microbial reduction effect. The total reduction in Salmonella spp. was approximately 6 log10 in T1 and T2, and 3.3 log10 in T3, while the total reduction in E. coli was approximately 4 log10 in T1 and T2, and 1.9 log10 in T3. After removing the larvae, the treatment residues were re-inoculated with Salmonella spp. and E. coli. It was found that the inactivation in both organisms continued in all treatments that originally contained BSF larvae (T1–T3), suggesting that antimicrobial substances may have been secreted by BSF larvae or by its associated microbiota.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)VINNOVAAquaculture Center of Unesp (Caunesp) São Paulo State University (UNESP)Department of Energy and Technology Swedish University of Agricultural SciencesSão Paulo Agency of Agribusiness and Technology (APTA) Polo Regional Centro-NorteAquaculture Center of Unesp (Caunesp) São Paulo State University (UNESP)CAPES: 189798/2018-01VINNOVA: 2019-00854CAPES: 88881Universidade Estadual Paulista (Unesp)Swedish University of Agricultural SciencesPolo Regional Centro-NorteLopes, Ivã Guidini [UNESP]Lalander, CeciliaVidotti, Rose Meire [UNESP]Vinnerås, Björn2020-12-12T02:17:15Z2020-12-12T02:17:15Z2020-07-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3389/fmicb.2020.01616Frontiers in Microbiology, v. 11.1664-302Xhttp://hdl.handle.net/11449/20083310.3389/fmicb.2020.016162-s2.0-85088826503Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFrontiers in Microbiologyinfo:eu-repo/semantics/openAccess2024-04-09T15:43:16Zoai:repositorio.unesp.br:11449/200833Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-09T15:43:16Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting |
title |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting |
spellingShingle |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting Lopes, Ivã Guidini [UNESP] BSF ecotechnology Escherichia coli hygienization S. Dublin S. Typhi S. Typhimurium Salmonella Senftenberg |
title_short |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting |
title_full |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting |
title_fullStr |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting |
title_full_unstemmed |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting |
title_sort |
Reduction of Bacteria in Relation to Feeding Regimes When Treating Aquaculture Waste in Fly Larvae Composting |
author |
Lopes, Ivã Guidini [UNESP] |
author_facet |
Lopes, Ivã Guidini [UNESP] Lalander, Cecilia Vidotti, Rose Meire [UNESP] Vinnerås, Björn |
author_role |
author |
author2 |
Lalander, Cecilia Vidotti, Rose Meire [UNESP] Vinnerås, Björn |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Swedish University of Agricultural Sciences Polo Regional Centro-Norte |
dc.contributor.author.fl_str_mv |
Lopes, Ivã Guidini [UNESP] Lalander, Cecilia Vidotti, Rose Meire [UNESP] Vinnerås, Björn |
dc.subject.por.fl_str_mv |
BSF ecotechnology Escherichia coli hygienization S. Dublin S. Typhi S. Typhimurium Salmonella Senftenberg |
topic |
BSF ecotechnology Escherichia coli hygienization S. Dublin S. Typhi S. Typhimurium Salmonella Senftenberg |
description |
This study evaluated the impact of feeding regimes on process performance and inactivation of microorganisms during treatment of aquaculture waste with black soldier fly (BSF) larvae. In three treatments (T1–T3), a blend of reclaimed bread and aquaculture waste was used as substrate for BSF larvae. In T1, the substrate was inoculated with four subtypes of Salmonella spp. and Escherichia coli (both at 1% w/w), and offered only once, at the beginning of the 14-day trial. In T2 and T3, the substrate was supplied on three different days, with contaminated substrate provided only the first event in T2 and in all three events in T3. Provision of a lump sum feeding (T1) proved unfavorable for larval growth and process efficiency, but did not affect the microbial reduction effect. The total reduction in Salmonella spp. was approximately 6 log10 in T1 and T2, and 3.3 log10 in T3, while the total reduction in E. coli was approximately 4 log10 in T1 and T2, and 1.9 log10 in T3. After removing the larvae, the treatment residues were re-inoculated with Salmonella spp. and E. coli. It was found that the inactivation in both organisms continued in all treatments that originally contained BSF larvae (T1–T3), suggesting that antimicrobial substances may have been secreted by BSF larvae or by its associated microbiota. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:17:15Z 2020-12-12T02:17:15Z 2020-07-16 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3389/fmicb.2020.01616 Frontiers in Microbiology, v. 11. 1664-302X http://hdl.handle.net/11449/200833 10.3389/fmicb.2020.01616 2-s2.0-85088826503 |
url |
http://dx.doi.org/10.3389/fmicb.2020.01616 http://hdl.handle.net/11449/200833 |
identifier_str_mv |
Frontiers in Microbiology, v. 11. 1664-302X 10.3389/fmicb.2020.01616 2-s2.0-85088826503 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Frontiers in Microbiology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965467969847296 |