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Multidimensional gas chromatography/mass spectrometry: A powerful tool for the direct chiral evaluation of aroma compounds in plant tissues. II. Linalool in essential oils and fruits
Author(s) -
Bernreuther Alexander,
Schreierc Peter
Publication year - 1991
Publication title -
phytochemical analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 72
eISSN - 1099-1565
pISSN - 0958-0344
DOI - 10.1002/pca.2800020405
Subject(s) - linalool , chemistry , passion fruit , aroma , chromatography , gas chromatography , mass spectrometry , blowing a raspberry , enantioselective synthesis , gas chromatography–mass spectrometry , enantiomer , food science , essential oil , organic chemistry , catalysis
On‐line coupled multidimensional gas chromatography (DB‐5/Lipodex C)/mass spectrometry was used for direct chiral analysis of linalool in 15 essential oils and 16 fruit species. Whereas in a number of commercial essential oils racemic linalool was found, in the corresponding oils prepared in the laboratory enantioselective distribution of linalool was determined. Among the fruits studied, (R)‐(−)‐linalool dominated in guava, greengage, lulo ( Solanum vestissimum ), peach and plum. In arctic bramble, mango, yellow passion fruit, raspberry and strawberry the (S)‐(+)‐enantiomer prevailed. The occurrence of approximately racemic linalool was established in apricot [(enantiomeric excess (ee) 6.0% (R)], mirabelle plum [ee 9.4%(R)], red passion fruit [ee 9.0% (R)] and pineapple [ee 6.6% (R)].