Acidic components in Scotch spearmint oil (Mentha gracilis Sole)

The acidic volatile components in Midwest Scotch spearmint oil (Mentha gracilis Sole) were investigated by means of GC, GC/MS and other analytical techniques. A total of 46 acidic components (35 carboxylic acids and 11 phenols) were identified from the oil. Among them, three carboxylic acids peculia...

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Bibliographic Details
Published in:The Journal of essential oil research 1998-09, Vol.10 (5), p.507-516
Main Authors: Tsuneya, T, Ishihara, M, Takatori, H, Yoshida, F, Yamagishi, K, Ikenishi, T
Format: Article
Language:English
Subjects:
3-isopropenyl-6-oxoheptanoic acid
3-isopropenyl-pentane-1,5-dioic acid
carboxylic acid components
carboxylic acids
chemical constituents of plants
cis-2-pentylcyclopropane-1-carboxylic acid
comparisons
enantioselective MDGC
Labiatae
Mentha arvensis
Mentha gracilis
Mentha piperita
Mentha spicata
molecular conformation
phenols
Scotch spearmint oil
species differences
volatile compounds
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Summary:The acidic volatile components in Midwest Scotch spearmint oil (Mentha gracilis Sole) were investigated by means of GC, GC/MS and other analytical techniques. A total of 46 acidic components (35 carboxylic acids and 11 phenols) were identified from the oil. Among them, three carboxylic acids peculiar to spearmint oil, cis-2-pentylcyclopropane-1-carboxylic acid, 3-isopropenylpentane-1,5-dioic acid, and 3-isopropenyl-6-oxoheptanoic acid were newly assigned by spectral data and by synthesis. The absolute configuration of one of the compounds was determined to be (1S, 2R)-(+)-enantiomer by an enantioselective multidimensional GC. The quantitative comparison of the major acidic components in the other three types of spearmint oil, in two types of peppermint oil, and in cornmint oil were discussed.
ISSN:1041-2905
2163-8152
DOI:10.1080/10412905.1998.9700957