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Perestrelo, Rosa, Silva, Catarina L., Silva
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Autor:
Perestrelo, Rosa, Silva, Catarina L., Silva, Pedro, Medina, Sonia, Pereira, Regina, Câmara, José S.
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Título: Untargeted fingerprinting of cider volatiles from different geographical regions by HS-SPME/GC-MS
Autor: Perestrelo, Rosa; Silva, Catarina L.; Silva, Pedro; Medina, Sonia; Pereira, Regina; Câmara, José S.
Resumo: The volatomic fingerprint of ciders produced in different geographical regions from Madeira Island was estab lished using headspace solid phase microextraction combined with gas chromatography mass spectrometry (HS SPME/GC–MS) in order to explore the effects of geographical region on the volatile pattern ciders in addition to
identify potential molecular geographic markers. A total of 107 volatile organic compounds (VOCs) belonging to
different chemical families were identified from which 50 VOCs are common to all ciders analysed. Significant
differences in the relative content of VOCs from ciders of different geographical regions were observed. The
potential of the identified VOCs for ciders discrimination according to region was assessed through chemometric
tools, such as principal components analysis (PCA) and partial least squares-discriminant analysis (PLS-DA). The
PCA showed significant differences among ciders from different island geographical regions. Fifteen VOCs re sponsible for ciders discrimination were identified by PLS-DA. Fifteen VOCs, namely five terpenoids, four al cohols, three acids and three esters, present variable importance in projection (VIP) values higher than one. Our
findings provide relevant information related to volatile signature of ciders produced in Madeira Island, which
may be a useful tool to cider-making process contributing to improve the quality of the final product. In addition,
the geographical discrimination recognizes the unique and distinctive characteristics that will allow in the future
to protect the quality and typicity of products originating in certain geographical regions.
Autor: Perestrelo, Rosa; Silva, Catarina L.; Silva, Pedro; Medina, Sonia; Pereira, Regina; Câmara, José S.
Resumo: The volatomic fingerprint of ciders produced in different geographical regions from Madeira Island was estab lished using headspace solid phase microextraction combined with gas chromatography mass spectrometry (HS SPME/GC–MS) in order to explore the effects of geographical region on the volatile pattern ciders in addition to
identify potential molecular geographic markers. A total of 107 volatile organic compounds (VOCs) belonging to
different chemical families were identified from which 50 VOCs are common to all ciders analysed. Significant
differences in the relative content of VOCs from ciders of different geographical regions were observed. The
potential of the identified VOCs for ciders discrimination according to region was assessed through chemometric
tools, such as principal components analysis (PCA) and partial least squares-discriminant analysis (PLS-DA). The
PCA showed significant differences among ciders from different island geographical regions. Fifteen VOCs re sponsible for ciders discrimination were identified by PLS-DA. Fifteen VOCs, namely five terpenoids, four al cohols, three acids and three esters, present variable importance in projection (VIP) values higher than one. Our
findings provide relevant information related to volatile signature of ciders produced in Madeira Island, which
may be a useful tool to cider-making process contributing to improve the quality of the final product. In addition,
the geographical discrimination recognizes the unique and distinctive characteristics that will allow in the future
to protect the quality and typicity of products originating in certain geographical regions.
Info Adicional:
Título: Untargeted fingerprinting of cider volatiles from different geographical regions by HS-SPME/GC-MS Autor: Perestrelo, Rosa; Silva, Catarina L.; Silva, Pedro; Medina, Sonia; Pereira, Regina; Câmara, José S. Resumo: The volatomic fingerprint of ciders produced in different geographical regions from Madeira Island was estab lished using headspace solid phase microextraction combined with gas chromatography mass spectrometry (HS SPME/GC–MS) in order to explore the effects of geographical region on the volatile pattern ciders in addition to identify potential molecular geographic markers. A total of 107 volatile organic compounds (VOCs) belonging to different chemical families were identified from which 50 VOCs are common to all ciders analysed. Significant differences in the relative content of VOCs from ciders of different geographical regions were observed. The potential of the identified VOCs for ciders discrimination according to region was assessed through chemometric tools, such as principal components analysis (PCA) and partial least squares-discriminant analysis (PLS-DA). The PCA showed significant differences among ciders from different island geographical regions. Fifteen VOCs re sponsible for ciders discrimination were identified by PLS-DA. Fifteen VOCs, namely five terpenoids, four al cohols, three acids and three esters, present variable importance in projection (VIP) values higher than one. Our findings provide relevant information related to volatile signature of ciders produced in Madeira Island, which may be a useful tool to cider-making process contributing to improve the quality of the final product. In addition, the geographical discrimination recognizes the unique and distinctive characteristics that will allow in the future to protect the quality and typicity of products originating in certain geographical regions.
Autor:
Perestrelo, Rosa, Silva, Catarina L., Silva, Pedro, Medina, Sonia, Pereira, Regina, Câmara, José S.
Clica para continuares a ler...