Anna Lis

Chemical Composition of the Essential Oil of Cultivated Summer Savory (Satureja hortensis L. cv. Saturn)

ABSTRACT The essential oil of cultivated summer savory (Satureja hortensis L. cv. Saturn) was analyzed by GC and GC/MS. More than twenty-five components were identified with the major ones being γ-terpinene (40.9%) and carvacrol (39.3%).

Essential Oil of Conyza canadensis (L.) Cronq.

Abstract The essential oil of Conyza canadensis was investigated by GC, GC/MS and 1H-NMR spectroscopy. More than 50 components were identified. The main constituents were limonene (70.0%) and trans-α-bergamotene (7.0/%).

Essential Oil of Amorpha fruticosa L.

Abstract The essential oils from the flowers, leaves and fruits of Amorpha fruticosa L. were investigated by GC, GC/MS and 1H-,13C-NMR spectroscopy. About 70 constituents were identified in each oil. The major components of the flower oil were α-eudesmol (15.8%), β-eudesmol (7.8%), δ-cadinene (6.2%) and (E)-nerolidol (6.1%). The leaf oil contained mainly α-eudesmol (13.9%), (E)-β-ocimene (11.9%), and α-pinene (11.8%). In the ripe fruit oil α-pinene (19.3-19.6%), myrcene (17.7-18.7%) and δ-cadinene (6.2-6.9%) dominated.

Chemical Composition of the Essential Oil of Rosa centifolia L. Petals

ABSTRACT The essential oil of Rosa centifolia L. cultivated in Poland has been analyzed by GC and GC/MS. Thirty-one components have been identified, of which the major ones were geraniol (26.7%) and citronellol (22.9%).

Changes in the Essential Oil of Conyza canadensis (L.) Cronquist. During Its Vegetation

Abstract The oil of Conyza canadensis from Bulgaria harvested during various the growth stages of the plant were investigated by GC and GC/MS. The main components were limonene (77.7-89.4%), trans-α-bergamotene (1.5-3.8%), β-pinene (0.8-6.6%) and carvone (0.5-1.8%). The percentage of limonene increased until the stage of blossom fall (89%) after which it decreased. The maximum content of (E)-β-ocimene (7.6%) was established prior to bud formation, while that of carvone reached a maximum at the commencement of budding. The maximum amounts of trans-α-bergamotene (3.8%) and of β-pinene occurred at the full bud formation stage and the end of the vegetation period, respectively.

Comparison of chemical composition of the essential oils from different parts of Thuja occidentalis L. ‘Brabant’ and T. occidentalis L. ‘Smaragd’

Summary Introduction: Thuja occidentalis ‘Brabant’ and T. occidentalis ‘Smaragd’ are widely planted as decoration in parks and as hedges in domestic gardens in Poland. Objective: The aim of the study was to determine the yield and the composition of essential oils from different parts of these cultivars. Methods: The essential oils were obtained by hydrodistillation, and then analyzed by GC/MS. Results: Over seventy compounds were identified. The oils from leaves, twigs with leaves and twigs without leaves of ‘Brabant’ variety contained mainly α-thujone (61.0–64.4%), β-thujone (10.4–10.7%) and fenchone (7.7–8.0%), whereas in the cone oil there were α-thujone (42.1%), sabinene (11.2%) and β-thujone (10.2%). The main constituents of the oil from leaves and twigs with leaves of ‘Smaragd’ variety were α-thujone (49.2–49.3%), beyerene (12.8–13.2%) and sabinene (8.9–9.3%). Conclusions: The yield and chemical composition of the essential oil of T. occidentalis depend on the variety and plant organ. The oil of ‘Brabant’ variety contained more thujones and less diterpenes in comparison with the oil of ‘Smaragd’ variety.

Chemical Composition of the Essential Oil From Fruits of Phellodendron chinense C. K. Schneid

Abstract The essential oil from fruits of Phellodendron chinense C. K. Schneid. was analyzed by GC, GC/MS and 1H-NMR spectroscopy. More than 90 compounds were identified. Myrcene (80.1–85.9%) and germacrene D (5.8–7.1%) were the main constituents in the oils obtained from fresh unripe, fresh ripe and air-dried ripe fruits.

Chemical Composition of the Essential Oil from the Herb of Erigeron annuus (L.) Pers

Abstract The essential oil obtained from the herb of Erigeron annuus (L.) Pers. harvested at four ontogenesis phases was analyzed by GC, GC/MS and 1H-NMR spectroscopy. More than 60 compounds were identified. Sesquiterpenoids constituted about 90% of the oil. Germacrene D (42.7–63.7%) and β-caryophyllene (9.0–15.9%) were the main constituents. The content of germacrene D increased until the flowering stage, however, the content of β-caryophyllene decreased at the same time

Essential Oil from Stored Fruits of Amorpha fruticosa L

Abstract The essential oils from fruits of Amorpha fruticosa, which have been stored for 6, 18, 30 and 40 months, have been investigated by GC and GC-MS. The oils have been obtained by hydrodistillation and the yields have been (0.83, 0.85, 0.78 and 0.76%), respectively. The main component of the oils is γ-muurolene + ar curcumene (16.7 – 19.2%). The total sum of monoterpenes decreased and sesquiterpenes increased and sesquiterpenes increased during the storage of fruits.

Chemical Composition of the Essential Oils from Flowers and Leaves of Phellodendron chinense C. K. Schneid.

Abstract The essential oils from flowers and leaves of Phellodendron chinense C. K. Schneid. were analyzed by GC and GC-MS. More than 90 compounds were identified. The flower oil contained myrcene (74.3 %) and (Z)-β-ocimene (5.0 %) as the main constituents, whereas the leaf oil contained myrcene (27.8 %), germacrene D (7.9 %) and phytol (6.8 %).