Essential oils of petal, leaf and stem of the antimalarial plant Artemisia annua

Abstract

The chemical composition of the essential oils obtained from petals, leaves and stems of the flowering stage of plants of Artemisia annua cultivar Jwarharti was analyzed by gas chromatography mass spectrometry (GC-MS); 86, 77, and 63 compounds were identified in the leaf, petal, and stem oils, respectively. Large compositional differences were detected between the three oils. The petal and leaf oils were rich in monoterpenes. The stem oil was rich in sesquiterpenes. Camphor, present in the leaf oil, was absent from petal oil.

Utilization of Nutmeg (Myristica fragrans Houtt.) Seed Hydrodistillation Time to Produce Essential Oil Fractions with Varied Compositions and Pharmacological Effects

“…Similarly, comparing the antimalarial activities of the four representative fractions revealed that EO at 1-2.5 min DT has higher inhibitory effect towards P. falciparum compared to the other three fractions. The variation of the EO (%) highlight the presence of sabinene in EO at 1-2.5 min DT, which agrees with what is known about the activity of sabinene against P. falciparum [22].…”

Volatile Organic Constituents of Clinopodium gilliesii (Benth.) Kuntze: Analysis by HS-SPME and classic hydrodistillation

“…This difference makes it possible, in SPME analyses, to perform quickly and easily the analytical data from the different parts of the plant, whereas is difficult the separation in different parts (stems, leaves and flowers) for later essential oil obtaining. However, many scientific works have been published lately, where the different parts of plants were processed separately, founding concur with our observations, significant differences in chemical composition of them (Kothari et al;2005;Angioni et al;Goel et al;Radulović et al;2009 Whole plant essential oil obtained by hydro distillation studies have been reported in the particular case of C. guillesii (Viturro et al, 2007). Currently, no study on the contribution of each aerial part of the plant to the set of VOCs produced by C. guillesii has been informed.…”

Composition of the essential oil from the root of Artemisia annua

“…The sesquiterpene-rich essential oil from the root of A. annua is compositionally very different from the monoterpene-rich essential oils of leaves, flowers and whole shoots of A. annua that have been described previously [15][16][17][18]. In comparison to the spicy odour of the essential oil from the shoot, the root oil has a pleasant odour.…”