Production of fish protein hydrolysates by a marine proteolytic strain
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.5/6475 |
Resumo: | Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Production of fish protein hydrolysates by a marine proteolytic strainfermentative protein hydrolysateproteolytic strainfish by-productsantiradical activitychelating activityreducing powerMestrado em Engenharia Alimentar - Instituto Superior de AgronomiaThe preparation of fish protein hydrolysates by a fermentative process is an alternative to classical preparation using added proteolytic enzymes, taking advantage of the wide spectrum of proteolytic enzymes produced by microorganisms and increasing the complexity of the peptide mixture obtained. Thus, the objective of this work was to prepare fermentative protein hydrolysates (FPH) from a commercial cod protein hydrolysate (CPH) using an indigenous marine proteolytic strain. The bacterial growth was performed in liquid culture media, containing three concentrations of CPH (1, 2 and 4%), yeast extract (0.5%) and sucrose (0.5%), with continuous shaking, at 30 ºC for 24, 50 and 72 hours. The parameters evaluated were the culture growth, enzymatic activity, protein content and recovery, peptide profile, degree of hydrolysis and antioxidant activity, measured by DPPH and ABTS radical scavenging activity, reducing power and metal chelating activity. Bacterial growth and enzymatic activity reached their maximums after 24 hours of fermentation, and all FPH showed the disappearance of peptides in the range of 200 – 400 Da. In the set of samples, 4 % FPH recorded the highest values of protein content and recovery, but 1 % and 2 % FPH were the samples that presented improved antioxidant activity.ISAPedro, Sónia Cristina CorreiaMartins, Maria Luísa LouroRepositório da Universidade de LisboaGodinho, Irina Sofia Marques2014-02-07T10:45:43Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/6475TID:201920999porGodinho, I.S.M. - Production of fish protein hydrolysates by a marine proteolytic strain. Lisboa: ISA, 2013, 87 p.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:37:19Zoai:www.repository.utl.pt:10400.5/6475Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:53:51.003723Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Production of fish protein hydrolysates by a marine proteolytic strain |
title |
Production of fish protein hydrolysates by a marine proteolytic strain |
spellingShingle |
Production of fish protein hydrolysates by a marine proteolytic strain Godinho, Irina Sofia Marques fermentative protein hydrolysate proteolytic strain fish by-products antiradical activity chelating activity reducing power |
title_short |
Production of fish protein hydrolysates by a marine proteolytic strain |
title_full |
Production of fish protein hydrolysates by a marine proteolytic strain |
title_fullStr |
Production of fish protein hydrolysates by a marine proteolytic strain |
title_full_unstemmed |
Production of fish protein hydrolysates by a marine proteolytic strain |
title_sort |
Production of fish protein hydrolysates by a marine proteolytic strain |
author |
Godinho, Irina Sofia Marques |
author_facet |
Godinho, Irina Sofia Marques |
author_role |
author |
dc.contributor.none.fl_str_mv |
Pedro, Sónia Cristina Correia Martins, Maria Luísa Louro Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Godinho, Irina Sofia Marques |
dc.subject.por.fl_str_mv |
fermentative protein hydrolysate proteolytic strain fish by-products antiradical activity chelating activity reducing power |
topic |
fermentative protein hydrolysate proteolytic strain fish by-products antiradical activity chelating activity reducing power |
description |
Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2013-01-01T00:00:00Z 2014-02-07T10:45:43Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.5/6475 TID:201920999 |
url |
http://hdl.handle.net/10400.5/6475 |
identifier_str_mv |
TID:201920999 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Godinho, I.S.M. - Production of fish protein hydrolysates by a marine proteolytic strain. Lisboa: ISA, 2013, 87 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
ISA |
publisher.none.fl_str_mv |
ISA |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799131014093602816 |