Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/31850 |
Resumo: | Saliva is being recognized as participating in oral sensory perception. This fluid contacts with food, at the same time that constitutes the surrounding environment of sensory receptors in the mouth. As such, saliva modulates perception both by interacting with food constituents and/or by changing the ability for signal induction by stimuli. In the particular case of bread, salivary amylase is known to participate in perception, due to its amylolytic activity. But saliva is composed by other proteins, besides amylase, which can be also involved in sensory perception. How these explain why different individuals sense differently the same product was what we intended to answer in this work. Fist, we did test 64 individuals (16 male; 48 female) for the changes in salivary protein profile induced by a commercial refined bread mastication. This first experiment allowed the assessment of the composition of saliva that is contact with bread during mastication. Only the protein band containing polymeric Ig receptor was significantly changed, suggesting a decrease in salivary IgA with bread in-mouth stimulation. In the second part, 22 of these individuals (11 male, 11 female) were tested for the sensory rating of the same type of bread. Salivary protein profile and amylase enzymatic activity of the fluid collected after tasting was correlated with results from sensory analysis. Sweetness ratings were positively correlated with flow rate and prolactin-induced protein expression levels, being negatively correlated with amylase enzymatic activity and expression levels. Saltiness was positively correlated with carbonic anhydrase VI and negatively with amylase, whereas roughness correlated positively with this last protein and negatively with S-type cystatins. In conclusion, not only salivary amylase, but also the composition in other salivary proteins contribute to inter-individual differences in the sensory perception of starch-based foods. This highlights the importance of knowing saliva composition to understand food acceptance. |
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Differences in salivary protein composition are related with inter-individual variation in bread sensory ratingsSalivaBreadOral food perceptionSaliva is being recognized as participating in oral sensory perception. This fluid contacts with food, at the same time that constitutes the surrounding environment of sensory receptors in the mouth. As such, saliva modulates perception both by interacting with food constituents and/or by changing the ability for signal induction by stimuli. In the particular case of bread, salivary amylase is known to participate in perception, due to its amylolytic activity. But saliva is composed by other proteins, besides amylase, which can be also involved in sensory perception. How these explain why different individuals sense differently the same product was what we intended to answer in this work. Fist, we did test 64 individuals (16 male; 48 female) for the changes in salivary protein profile induced by a commercial refined bread mastication. This first experiment allowed the assessment of the composition of saliva that is contact with bread during mastication. Only the protein band containing polymeric Ig receptor was significantly changed, suggesting a decrease in salivary IgA with bread in-mouth stimulation. In the second part, 22 of these individuals (11 male, 11 female) were tested for the sensory rating of the same type of bread. Salivary protein profile and amylase enzymatic activity of the fluid collected after tasting was correlated with results from sensory analysis. Sweetness ratings were positively correlated with flow rate and prolactin-induced protein expression levels, being negatively correlated with amylase enzymatic activity and expression levels. Saltiness was positively correlated with carbonic anhydrase VI and negatively with amylase, whereas roughness correlated positively with this last protein and negatively with S-type cystatins. In conclusion, not only salivary amylase, but also the composition in other salivary proteins contribute to inter-individual differences in the sensory perception of starch-based foods. This highlights the importance of knowing saliva composition to understand food acceptance.2022-04-27T11:49:52Z2022-04-272020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10174/31850http://hdl.handle.net/10174/31850porLamy E, Santos V, Barrambana S, Carreira L, Infante P, Capela e Silva F. (2020) Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings. Eurosense 2020. 13-16 December 2020. Wagningen, Netherlands (oral presentation)simnaonaoecsl@uevora.ptndndndndfcs@uevora.pt543Lamy, ElsaSantos, VeraBarrambana, SaraCarreira, LauraInfante, PauloCapela e Silva, Fernandoinfo: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:RCAAP2024-01-03T19:31:44Zoai:dspace.uevora.pt:10174/31850Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:20:53.348075Repositório 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 |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings |
title |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings |
spellingShingle |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings Lamy, Elsa Saliva Bread Oral food perception |
title_short |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings |
title_full |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings |
title_fullStr |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings |
title_full_unstemmed |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings |
title_sort |
Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings |
author |
Lamy, Elsa |
author_facet |
Lamy, Elsa Santos, Vera Barrambana, Sara Carreira, Laura Infante, Paulo Capela e Silva, Fernando |
author_role |
author |
author2 |
Santos, Vera Barrambana, Sara Carreira, Laura Infante, Paulo Capela e Silva, Fernando |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Lamy, Elsa Santos, Vera Barrambana, Sara Carreira, Laura Infante, Paulo Capela e Silva, Fernando |
dc.subject.por.fl_str_mv |
Saliva Bread Oral food perception |
topic |
Saliva Bread Oral food perception |
description |
Saliva is being recognized as participating in oral sensory perception. This fluid contacts with food, at the same time that constitutes the surrounding environment of sensory receptors in the mouth. As such, saliva modulates perception both by interacting with food constituents and/or by changing the ability for signal induction by stimuli. In the particular case of bread, salivary amylase is known to participate in perception, due to its amylolytic activity. But saliva is composed by other proteins, besides amylase, which can be also involved in sensory perception. How these explain why different individuals sense differently the same product was what we intended to answer in this work. Fist, we did test 64 individuals (16 male; 48 female) for the changes in salivary protein profile induced by a commercial refined bread mastication. This first experiment allowed the assessment of the composition of saliva that is contact with bread during mastication. Only the protein band containing polymeric Ig receptor was significantly changed, suggesting a decrease in salivary IgA with bread in-mouth stimulation. In the second part, 22 of these individuals (11 male, 11 female) were tested for the sensory rating of the same type of bread. Salivary protein profile and amylase enzymatic activity of the fluid collected after tasting was correlated with results from sensory analysis. Sweetness ratings were positively correlated with flow rate and prolactin-induced protein expression levels, being negatively correlated with amylase enzymatic activity and expression levels. Saltiness was positively correlated with carbonic anhydrase VI and negatively with amylase, whereas roughness correlated positively with this last protein and negatively with S-type cystatins. In conclusion, not only salivary amylase, but also the composition in other salivary proteins contribute to inter-individual differences in the sensory perception of starch-based foods. This highlights the importance of knowing saliva composition to understand food acceptance. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01T00:00:00Z 2022-04-27T11:49:52Z 2022-04-27 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/31850 http://hdl.handle.net/10174/31850 |
url |
http://hdl.handle.net/10174/31850 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Lamy E, Santos V, Barrambana S, Carreira L, Infante P, Capela e Silva F. (2020) Differences in salivary protein composition are related with inter-individual variation in bread sensory ratings. Eurosense 2020. 13-16 December 2020. Wagningen, Netherlands (oral presentation) sim nao nao ecsl@uevora.pt nd nd nd nd fcs@uevora.pt 543 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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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 |
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1799136690574458880 |