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Studies into the phenolic patterns of different tissues of pineapple ( Ananas comosus [L.] Merr.) infructescence by HPLC-DAD-ESI-MS and GC-MS analysis.
- Source :
-
Analytical & Bioanalytical Chemistry . Aug2015, Vol. 407 Issue 21, p6463-6479. 17p. - Publication Year :
- 2015
-
Abstract
- In a comprehensive study, more than 60 phenolic compounds were detected in methanolic extracts from different tissues of pineapple infructescence by high-performance liquid chromatography with diode array detection and electrospray ionisation multiple-stage mass spectrometry (HPLC-DAD-ESI-MS) as well as by gas chromatography-mass spectrometry (GC-MS). The analytical workflow combining both methods revealed numerous compounds assigned for the first time as pineapple constituents by their mass fragmentations. Pineapple crown tissue was characterised by depsides of p-coumaric and ferulic acid. In contrast, major phenolic compounds in pineapple pulp extracts were assigned to diverse S- p-coumaryl, S-coniferyl and S-sinapyl derivatives of glutathione, N- l-γ-glutamyl- l-cysteine and l-cysteine, which were also identified in the peel. The latter was additionally characterised by elevated concentrations of p-coumaric, ferulic and caffeic acid depsides and glycerides, respectively. Two peel-specific cyanidin hexosides were found. Elevated concentrations of isomeric N, N′-diferuloylspermidines may be a useful tool for the detection of fraudulent peel usage for pineapple juice production. Mass fragmentation pathways of characteristic pineapple constituents are proposed, and their putative biological functions are discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16182642
- Volume :
- 407
- Issue :
- 21
- Database :
- Academic Search Index
- Journal :
- Analytical & Bioanalytical Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 108564212
- Full Text :
- https://doi.org/10.1007/s00216-015-8811-2