Volatile profile of portuguese monofloral honeys: significance in botanical origin determination
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/24022 |
Resumo: | The volatile profiles of 51 samples from 12 monofloral-labelled Portuguese honey types were assessed. Honeys of bell heather, carob tree, chestnut, eucalyptus, incense, lavender, orange, rape, raspberry, rosemary, sunflower and strawberry tree were collected from several regions from mainland Portugal and from the Azores Islands. When available, the corresponding flower volatiles were comparatively evaluated. Honey volatiles were isolated using two different extraction methods, solid-phase microextraction (SPME) and hydrodistillation (HD), with HD proving to be more effective in the number of volatiles extracted. Agglomerative cluster analysis of honey HD volatiles evidenced two main clusters, one of which had nine sub-clusters. Components grouped by biosynthetic pathway defined alkanes and fatty acids as dominant, namely n-nonadecane, n-heneicosane, n-tricosane and npentacosane and palmitic, linoleic and oleic acids. Oxygen-containing monoterpenes, such as cis- and trans-linalool oxide (furanoid), hotrienol and the apocarotenoid -isophorone, were also present in lower amounts. Aromatic amino acid derivatives were also identified, namely benzene acetaldehyde and 3,4,5-trimethylphenol. Fully grown classification tree analysis allowed the identification of the most relevant volatiles for discriminating the different honey types. Twelve volatile compounds were enough to fully discriminate eleven honey types (92%) according to the botanical origin. |
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Volatile profile of portuguese monofloral honeys: significance in botanical origin determinationPortuguese honeysVolatile profileHoney type discriminationBotanical origin determinationThe volatile profiles of 51 samples from 12 monofloral-labelled Portuguese honey types were assessed. Honeys of bell heather, carob tree, chestnut, eucalyptus, incense, lavender, orange, rape, raspberry, rosemary, sunflower and strawberry tree were collected from several regions from mainland Portugal and from the Azores Islands. When available, the corresponding flower volatiles were comparatively evaluated. Honey volatiles were isolated using two different extraction methods, solid-phase microextraction (SPME) and hydrodistillation (HD), with HD proving to be more effective in the number of volatiles extracted. Agglomerative cluster analysis of honey HD volatiles evidenced two main clusters, one of which had nine sub-clusters. Components grouped by biosynthetic pathway defined alkanes and fatty acids as dominant, namely n-nonadecane, n-heneicosane, n-tricosane and npentacosane and palmitic, linoleic and oleic acids. Oxygen-containing monoterpenes, such as cis- and trans-linalool oxide (furanoid), hotrienol and the apocarotenoid -isophorone, were also present in lower amounts. Aromatic amino acid derivatives were also identified, namely benzene acetaldehyde and 3,4,5-trimethylphenol. Fully grown classification tree analysis allowed the identification of the most relevant volatiles for discriminating the different honey types. Twelve volatile compounds were enough to fully discriminate eleven honey types (92%) according to the botanical origin.Alexandra M. Machado was funded by Fundação para a Ciência e a Tecnologia (FCT) with PhD grant SFRH/BD/117013/2016. This study was partially funded by FCT/MCTES through national funds, under CESAM UIDB/50017/2020 + UIDP/50017/2020, CIMO UIDB/00690/2020, CEAUL UIDB/00006/2020, MED UIDB/05183/2020, FEDER, PT2020 PACompete 2020.Biblioteca Digital do IPBMachado, Alexandra M.Antunes, MaríliaMiguel, Maria da GraçaVilas-Boas, MiguelFigueiredo, Ana Cristina2021-10-14T15:58:14Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/24022engMachado, Alexandra M.; Antunes, Marília; Miguel, Maria Graça; Vilas-Boas, Miguel; Figueiredo, Ana Cristina (2021). Volatile profile of portuguese monofloral honeys: significance in botanical origin determination. Molecules. ISSN 1420-3049. 26:16, p. 1-191420-304910.3390/molecules26164970info: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:RCAAP2023-01-16T12:25:17ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination |
title |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination |
spellingShingle |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination Machado, Alexandra M. Portuguese honeys Volatile profile Honey type discrimination Botanical origin determination |
title_short |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination |
title_full |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination |
title_fullStr |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination |
title_full_unstemmed |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination |
title_sort |
Volatile profile of portuguese monofloral honeys: significance in botanical origin determination |
author |
Machado, Alexandra M. |
author_facet |
Machado, Alexandra M. Antunes, Marília Miguel, Maria da Graça Vilas-Boas, Miguel Figueiredo, Ana Cristina |
author_role |
author |
author2 |
Antunes, Marília Miguel, Maria da Graça Vilas-Boas, Miguel Figueiredo, Ana Cristina |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Machado, Alexandra M. Antunes, Marília Miguel, Maria da Graça Vilas-Boas, Miguel Figueiredo, Ana Cristina |
dc.subject.por.fl_str_mv |
Portuguese honeys Volatile profile Honey type discrimination Botanical origin determination |
topic |
Portuguese honeys Volatile profile Honey type discrimination Botanical origin determination |
description |
The volatile profiles of 51 samples from 12 monofloral-labelled Portuguese honey types were assessed. Honeys of bell heather, carob tree, chestnut, eucalyptus, incense, lavender, orange, rape, raspberry, rosemary, sunflower and strawberry tree were collected from several regions from mainland Portugal and from the Azores Islands. When available, the corresponding flower volatiles were comparatively evaluated. Honey volatiles were isolated using two different extraction methods, solid-phase microextraction (SPME) and hydrodistillation (HD), with HD proving to be more effective in the number of volatiles extracted. Agglomerative cluster analysis of honey HD volatiles evidenced two main clusters, one of which had nine sub-clusters. Components grouped by biosynthetic pathway defined alkanes and fatty acids as dominant, namely n-nonadecane, n-heneicosane, n-tricosane and npentacosane and palmitic, linoleic and oleic acids. Oxygen-containing monoterpenes, such as cis- and trans-linalool oxide (furanoid), hotrienol and the apocarotenoid -isophorone, were also present in lower amounts. Aromatic amino acid derivatives were also identified, namely benzene acetaldehyde and 3,4,5-trimethylphenol. Fully grown classification tree analysis allowed the identification of the most relevant volatiles for discriminating the different honey types. Twelve volatile compounds were enough to fully discriminate eleven honey types (92%) according to the botanical origin. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10-14T15:58:14Z 2021 2021-01-01T00:00:00Z |
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://hdl.handle.net/10198/24022 |
url |
http://hdl.handle.net/10198/24022 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Machado, Alexandra M.; Antunes, Marília; Miguel, Maria Graça; Vilas-Boas, Miguel; Figueiredo, Ana Cristina (2021). Volatile profile of portuguese monofloral honeys: significance in botanical origin determination. Molecules. ISSN 1420-3049. 26:16, p. 1-19 1420-3049 10.3390/molecules26164970 |
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.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 |
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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 |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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