Raman spectroscopic monitoring of Lactarius latex

Lactarius species exude a milky fluid when bruised. Starting from a single species dependant fatty acid precursor several reactions occur and many chemicals are produced. Raman spectroscopy was used and tested as a novel tool of analysis for the chemical composition and reactions of L. latex. Lactar...

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Bibliographic Details
Published in:Phytochemistry (Oxford) 2006-12, Vol.67 (23), p.2580-2589
Main Authors: De Gussem, Kris, Verbeken, Annemieke, Vandenabeele, Peter, De Gelder, Joke, Moens, Luc
Format: Article
Language:English
Subjects:
2D correlation
Basidiomycota
Basidiomycota - metabolism
Basidiomycotina
Biological and medical sciences
Chemical analysis
Chemical constitution
chemical reactions
Fundamental and applied biological sciences. Psychology
Lactarius
Lactarius chrysorrheus
Lactarius deterrimus
Lactarius fluens
Lactarius glyciosmus
Lactarius lacunarum
Lactarius salmonicolor
Latex
Latex - chemistry
Latex - metabolism
Molecular Structure
Plant physiology and development
Raman spectroscopy
Russulales
spectral analysis
Spectrum Analysis, Raman - methods
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Summary:Lactarius species exude a milky fluid when bruised. Starting from a single species dependant fatty acid precursor several reactions occur and many chemicals are produced. Raman spectroscopy was used and tested as a novel tool of analysis for the chemical composition and reactions of L. latex. Lactarius is a genus of Basidiomycotina with mainly agaricoid representatives, which are characterised by the excretion of a typical milky fluid. In particular, the colour, changes and taste of this latex-like milk are often used as a taxonomically important character. When it is exuded several chemical reactions occur. To date, NMR spectroscopy is generally used for chemical investigation of this latex. However, as a vibrational spectroscopic technique Raman spectroscopy has several advantageous properties for this type of research. The aim of this study is to investigate whether Raman spectroscopy can be used as an alternative analytical technique to monitor the chemical reactions in Lactarius latex. Therefore, this paper presents the first Raman spectra of Lactarius latex and provides an interpretation of the Raman bands that are present. L. lacunarum latex spectra are thoroughly investigated by 2D correlation analysis and are compared with latex spectra of other species ( L. chrysorrheus, L. deterrimus, L. fluens, L. glyciosmus and L. salmonicolor).
ISSN:0031-9422
1873-3700
DOI:10.1016/j.phytochem.2006.09.006