[P-073]
SEASONAL VARIABILITY OF ESSENTIAL OIL
COMPOSITION OF Glechoma hirsuta W. et K. (LAMIACEAE)

Slavica Grujić-Jovanović1, Vlatka Vajs2, Petar Marin1,
Vele Tešević2 and Dejan Đoković2
1Faculty of Biology, Studentski trg 16, 11000 Belgrade, FR Yugoslavia
2Faculty of Chemistry, Studentski trg 16, 11000 Belgrade, FR Yugoslavia

The seasonal variability of qualitative composition of the essential oil of G. hirsuta from six localities was investigated. Plants for this investigation were collected during April and July 1996. The distillation of essential oil was carried out according to Lickens-Nickerson method, using methylene chloride. Identification and quantification of the single components was carried out by GC and GC/MS. Seven compounds were identified from the essential oil: 1,8-cineole, octen-1-ol-acetate, 7-octen-4-ol, g-elemene, b-cubebene, benzen-methanol and viridiflorol. The dominant compound of essential oil of plants collected in April, in flowering stage, was 1,8-cineole, while in the oil of plants collected in July, during fruiting period, the main component was viridiflorol.

[Full paper: NA]
[P-073]