Publicação
Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento
| Resumo: | The integrated effects of heat treatments, ultrasound and biocontrol (Blossom Protect™) were evaluated as alternatives to postharvest storage of Rocha pear and to the production of fresh-cut pear. Based on response surface methodology to assess thermal binomials decontamination efficiency, the 40 ºC / 40 min condition (Top - immersion the pears in water) was selected due to the achieved reduction level (~1 and ~2 LogCFU.g-1 to aerobic microorganisms and yeast and molds, respectively) without changing the fresh characteristics. Ultrasound application had a non-significant effect in reducing fruits contaminating flora and didn’t introduced further decontamination effects when combined with Top, confirming Top single application effectiveness. During fruit postharvest storage (7 ºC, 60 days), the effects of the combination of heat treatment and biocontrol were surpassed by Top single application since the later proved to be more effective in achieving significant decontamination levels and to control rot development. Regarding the use of Top as an alternative treatment to the standard use of sodium hypochlorite as a decontamination agent, has shown potential in decontamination, effective control of microbial development and color maintenance of the fresh-cut pear during storage (5 ºC, 15 days) suggest that Top is a viable alternative to this production |
|---|---|
| Autores principais: | Coelho, Duarte Francisco Pequeno |
| Assunto: | Rocha pear storage heat treatment ultrasound biocontrol minimal processing |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | português |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1866809356175015936 |
|---|---|
| author | Coelho, Duarte Francisco Pequeno |
| author_facet | Coelho, Duarte Francisco Pequeno |
| author_role | author |
| contributor_name_str_mv | Abreu, Marta Maria Nogueira Martins, Margarida Moldão Alegria, Carla Sofia Marques Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Coelho, Duarte Francisco Pequeno\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Abreu, Marta Maria Nogueira Martins, Margarida Moldão Alegria, Carla Sofia Marques Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Coelho, Duarte Francisco Pequeno |
| datacite.date.Accepted.fl_str_mv | 2015-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2015-05-05T13:44:10Z |
| datacite.date.embargoed.fl_str_mv | 2015-05-05T13:44:10Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Rocha pear storage heat treatment ultrasound biocontrol minimal processing |
| datacite.titles.title.fl_str_mv | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| dc.contributor.none.fl_str_mv | Abreu, Marta Maria Nogueira Martins, Margarida Moldão Alegria, Carla Sofia Marques Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Coelho, Duarte Francisco Pequeno |
| dc.date.Accepted.fl_str_mv | 2015-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2015-05-05T13:44:10Z |
| dc.date.embargoed.fl_str_mv | 2015-05-05T13:44:10Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.5/8527 |
| dc.language.none.fl_str_mv | por |
| dc.publisher.none.fl_str_mv | ISA/UL |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Rocha pear storage heat treatment ultrasound biocontrol minimal processing |
| dc.title.fl_str_mv | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_bdcc |
| description | The integrated effects of heat treatments, ultrasound and biocontrol (Blossom Protect™) were evaluated as alternatives to postharvest storage of Rocha pear and to the production of fresh-cut pear. Based on response surface methodology to assess thermal binomials decontamination efficiency, the 40 ºC / 40 min condition (Top - immersion the pears in water) was selected due to the achieved reduction level (~1 and ~2 LogCFU.g-1 to aerobic microorganisms and yeast and molds, respectively) without changing the fresh characteristics. Ultrasound application had a non-significant effect in reducing fruits contaminating flora and didn’t introduced further decontamination effects when combined with Top, confirming Top single application effectiveness. During fruit postharvest storage (7 ºC, 60 days), the effects of the combination of heat treatment and biocontrol were surpassed by Top single application since the later proved to be more effective in achieving significant decontamination levels and to control rot development. Regarding the use of Top as an alternative treatment to the standard use of sodium hypochlorite as a decontamination agent, has shown potential in decontamination, effective control of microbial development and color maintenance of the fresh-cut pear during storage (5 ºC, 15 days) suggest that Top is a viable alternative to this production |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | masterThesis |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/822d4e66-cb94-49ed-802f-1e37cdc67004/download |
| id | ul_30f4e829100a4fa311c04ae3376bbb53 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.5/8527 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | por |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10400.5/8527 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Coelho, Duarte Francisco Pequeno |
| publishDate | 2015 |
| publisher.none.fl_str_mv | ISA/UL |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | porISA/ULporThe integrated effects of heat treatments, ultrasound and biocontrol (Blossom Protect™) were evaluated as alternatives to postharvest storage of Rocha pear and to the production of fresh-cut pear. Based on response surface methodology to assess thermal binomials decontamination efficiency, the 40 ºC / 40 min condition (Top - immersion the pears in water) was selected due to the achieved reduction level (~1 and ~2 LogCFU.g-1 to aerobic microorganisms and yeast and molds, respectively) without changing the fresh characteristics. Ultrasound application had a non-significant effect in reducing fruits contaminating flora and didn’t introduced further decontamination effects when combined with Top, confirming Top single application effectiveness. During fruit postharvest storage (7 ºC, 60 days), the effects of the combination of heat treatment and biocontrol were surpassed by Top single application since the later proved to be more effective in achieving significant decontamination levels and to control rot development. Regarding the use of Top as an alternative treatment to the standard use of sodium hypochlorite as a decontamination agent, has shown potential in decontamination, effective control of microbial development and color maintenance of the fresh-cut pear during storage (5 ºC, 15 days) suggest that Top is a viable alternative to this productionapplication/pdfporIntegração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamentoCoelho, Duarte Francisco PequenoAbreu, Marta Maria NogueiraMartins, Margarida MoldãoAlegria, Carla Sofia MarquesHostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptURNurn:tid:2037052032015-05-05T13:44:10Z20152015-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.5/8527http://purl.org/coar/access_right/c_abf2open accessRocha pearstorageheat treatmentultrasoundbiocontrolminimal processing2138789 bytesliteraturehttp://purl.org/coar/resource_type/c_bdccmaster thesishttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/822d4e66-cb94-49ed-802f-1e37cdc67004/download |
| spellingShingle | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento Coelho, Duarte Francisco Pequeno Rocha pear storage heat treatment ultrasound biocontrol minimal processing |
| status | SINGLETON |
| subject.fl_str_mv | Rocha pear storage heat treatment ultrasound biocontrol minimal processing |
| title | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| title_full | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| title_fullStr | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| title_full_unstemmed | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| title_short | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| title_sort | Integração de tratamentos pós-colheita físicos (calor e ultrassons) e biocontrolo na conservação de pera Rocha inteira e na aptidão para processamento |
| topic | Rocha pear storage heat treatment ultrasound biocontrol minimal processing |
| topic_facet | Rocha pear storage heat treatment ultrasound biocontrol minimal processing |
| url | http://hdl.handle.net/10400.5/8527 |
| visible | 1 |