TY - JOUR
T1 - Phenolic profiling for traceability of Vanilla ×tahitensis
AU - Busconi, Matteo
AU - Lucini, Luigi
AU - Soffritti, Giovanna
AU - Bernardi, Jamila
AU - Bernardo, Letizia
PY - 2017
Y1 - 2017
N2 - Vanilla is a flavoring recovered from the cured beans of the orchid genus Vanilla. Vanilla Ãtahitensis is traditionally cultivated on the islands of French Polynesia, where vanilla vines were first introduced during the nineteenth century and, since the 1960s, have been introduced to other Pacific countries such as Papua New Guinea (PNG), cultivated and sold as âTahitian vanilla,â although both sensory properties and aspect are different. From an economic point of view, it is important to ensure V. Ãtahitensis traceability and to guarantee that the marketed product is part of the future protected designation of the origin âTahitian vanillaâ (PDO), currently in progress in French Polynesia. The application of metabolomics, allowing the detection and simultaneous analysis of hundreds or thousands of metabolites from different matrices, has recently gained high interest in food traceability. Here, metabolomics analysis of phenolic compounds profiles was successfully applied for the first time to V. Ãtahitensis to deepen our knowledge of vanilla metabolome, focusing on phenolics compounds, for traceability purposes. Phenolics were screened through a quadrupole-time-of-flightmass spectrometer coupled to a UHPLC liquid chromatography system, and 260 different compounds were clearly evidenced and subjected to different statistical analysis in order to enable the discrimination of the samples based on their origin. Eighty-eight and twenty three compounds, with a prevalence of flavonoids, resulted to be highly discriminant through ANOVA and Orthogonal Projections to Latent Structures Discriminant Analysis (OPLS-DA) respectively. Volcano plot analysis and pairwise comparisons were carried out to determine those compounds, mainly responsible for the differences among samples as a consequence of either origin or cultivar. The samples from PNG were clearly different from the Tahitian samples that were further divided in two different groups based on the different phenolic patterns. Among the 260 compounds, metabolomics analysis enabled the detection of previously unreported phenolics in vanilla (such as flavonoids, lignans, stilbenes and other polyphenols).
AB - Vanilla is a flavoring recovered from the cured beans of the orchid genus Vanilla. Vanilla Ãtahitensis is traditionally cultivated on the islands of French Polynesia, where vanilla vines were first introduced during the nineteenth century and, since the 1960s, have been introduced to other Pacific countries such as Papua New Guinea (PNG), cultivated and sold as âTahitian vanilla,â although both sensory properties and aspect are different. From an economic point of view, it is important to ensure V. Ãtahitensis traceability and to guarantee that the marketed product is part of the future protected designation of the origin âTahitian vanillaâ (PDO), currently in progress in French Polynesia. The application of metabolomics, allowing the detection and simultaneous analysis of hundreds or thousands of metabolites from different matrices, has recently gained high interest in food traceability. Here, metabolomics analysis of phenolic compounds profiles was successfully applied for the first time to V. Ãtahitensis to deepen our knowledge of vanilla metabolome, focusing on phenolics compounds, for traceability purposes. Phenolics were screened through a quadrupole-time-of-flightmass spectrometer coupled to a UHPLC liquid chromatography system, and 260 different compounds were clearly evidenced and subjected to different statistical analysis in order to enable the discrimination of the samples based on their origin. Eighty-eight and twenty three compounds, with a prevalence of flavonoids, resulted to be highly discriminant through ANOVA and Orthogonal Projections to Latent Structures Discriminant Analysis (OPLS-DA) respectively. Volcano plot analysis and pairwise comparisons were carried out to determine those compounds, mainly responsible for the differences among samples as a consequence of either origin or cultivar. The samples from PNG were clearly different from the Tahitian samples that were further divided in two different groups based on the different phenolic patterns. Among the 260 compounds, metabolomics analysis enabled the detection of previously unreported phenolics in vanilla (such as flavonoids, lignans, stilbenes and other polyphenols).
KW - Authenticity
KW - Food metabolomics
KW - Phenolics
KW - Plant Science
KW - Traceability
KW - Vanilla Ãtahitensis
KW - Authenticity
KW - Food metabolomics
KW - Phenolics
KW - Plant Science
KW - Traceability
KW - Vanilla Ãtahitensis
UR - http://hdl.handle.net/10807/111332
UR - http://journal.frontiersin.org/article/10.3389/fpls.2017.01746/full
U2 - 10.3389/fpls.2017.01746
DO - 10.3389/fpls.2017.01746
M3 - Article
SN - 1664-462X
VL - 8
SP - 1
EP - 13
JO - Frontiers in Plant Science
JF - Frontiers in Plant Science
ER -