Table I.

Changes in monoterpene composition during leaf development in peppermint

CompoundLeaf Age (d)
5812151821304055
% of total monoterpenes
α-Pinene1.51.21.10.81.51.41.81.62.0
β-Pinene1.11.31.11.01.71.92.42.32.9
Sabinene1.00.30.60.50.81.01.31.31.6
Myrcenetr1-a tr0.40.30.40.50.60.60.7
Limonene26.819.913.05.02.41.42.41.31.8
1,8-Cineoletr0.50.82.46.08.512.011.715.6
Menthone36.453.666.075.558.563.540.233.310.0
Menthofuran3.91.92.81.44.61.5trtrtr
Isomenthone3.53.54.24.53.74.23.43.73.6
Linalool0.40.20.20.20.20.30.80.61.0
Neomentholtrtrtrtrtrtr0.82.64.6
Mentholtrtrtrtr1.62.612.035.254.0
Pulegone24.916.98.57.117.511.821.14.60.8
α-Terpineoltrtr0.10.10.20.30.40.30.2
Piperitone0.40.81.21.10.81.00.70.91.2

Diethyl ether extracts prepared from leaves of different ages were analyzed by gas chromatography. Each value is the mean of at least three separate analyses. “tr” indicates that <0.1% was detected.

    • F1-a tr, Trace (<0.1% detected).