scholarly journals INFLUENCE OF PLANTING DATE AND HARVEST TIME ON ARTEMISIA ANNUA L.

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1165d-1165 ◽  
Author(s):  
Ernst Cebert ◽  
Denys J. Charles ◽  
James E. Simon
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Artemisia Annua ◽  
Planting Date ◽  
Harvest Time ◽  
Average Increase ◽  
Optimum Time ◽  
Planting Dates ◽  
Oil Accumulation ◽  
Artemisia Annua L

Artemisia annua L. is an aromatic and medicinal plant of importance for its volatile essential oils, and the non-volatile artemisinin used in the treatment of malaria. To determine the optimum time of planting for growth and the accumulation of essential oils, seedlings of A. annua (Purdue accession 012) were transplanted into the field in Central Indiana in a RBD with 3 replications on April 25, May 24, June 24, and July 25, 1988. Plant samples were harvested every 2 weeks until first frost.The April and May transplanting dates produced the tallest plants (>180 cm) while the May transplants accumulated the greatest fresh and dry weights. The average increase in plant height was greatest for the June 24 planting date at 9.8 cm per week. Regardless of planting date, all plants began to flower by early August and growth rate began to decrease by late August. Accumulation of essential oil (as rel. % dry wt.) was similar for all planting dates. Essential oil increased until floral initiation, then decreased for 2 weeks after which there was a rapid increase in oil accumulation. Maximum oil accumulation from all planting dates was reached on Sept. 28 after which growth continued to increase.

scholarly journals Assessment of the potential of Artemisia annua L. as a source of biologically active substances in Belarus

2019 ◽  
Vol 24 ◽  
pp. 290-295
Author(s):  
H. G. Shutava ◽  
S. N. Shysh ◽  
P. S. Shabunya ◽  
S. A. Fatykhava ◽  
E. D. Skakovski ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Essential Oil ◽  
Essential Oils ◽  
Phenolic Acids ◽  
Artemisia Annua ◽  
Hydroxycinnamic Acids ◽  
Biologically Active ◽  
Artemisia Annua L ◽  
Agroclimatic Zone ◽  
Ground Mass

Aim. The aim of the work was to assess the composition of biologically active compounds in plants of Artemisia annua L. Methods. The plants were grown on the experimental plot of the Central Botanical Garden of the National Academy of Sciences of Belarus. Essential oil from the above-ground mass was isolated by the method of water-steam distillation. To analyze the content of flavonoids and hydroxycinnamic acids, we used the method of quantitative extraction and spectrophotometric determination of the total content of hydroxycinnamic acids in the presence of flavonoids in plant extractive substances, and the method of Folin-Chocalteu was used to determine the content of phenolic compounds. Analysis of the essential oils was performed by GC and NMR. The analysis of the content of phenolic acids in extracts was performed by HPLC. Results. The genetic potential of A. annua was evaluated under conditions of the central agroclimatic zone of Belarus. The yield and composition of essential oils, the content of phenolic compounds and flavonoids, the composition of phenolic acids were studied. Conclusions. A. annua in the conditions of the central agroclimatic zone of Belarus contains essential oil, which is dominated by isoartemisia ketone, β-selinene, β-myrcene and camphor. In the above-ground mass phenolic acids including chlorogenic acid and isomers of caffeoylquinic acid were predominant in the composition of phenolic compounds. Keywords: annual wormwood, essential oil, phenolic compounds, phenolic acids.

scholarly journals Composition of essential oils and headspace constituents of Artemisia annua L. and A. scoparia Waldst. et Kit.

2020 ◽  
pp. 61-61
Author(s):  
Jovana Ickovski ◽  
Katarina Stepic ◽  
Gordana Stojanovic
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Artemisia Annua ◽  
The Other ◽  
Static Headspace ◽  
Main Constituent ◽  
Headspace Volatiles ◽  
First Report ◽  
Artemisia Annua L ◽  
Aerial Parts

Headspace volatiles (HS) and hydrodistilled essential oils (EO) of fresh aerial parts of Artemisia annua L. and A. scoparia Waldst. et Kit., were analyzed by GC-MS/FID. Artemisia ketone was found to be the most abundant component among the EO volatiles (55.8 %), as well as among HS (52.1 %) of A. annua. Additionally, in both A. annua samples, EO and HS, ?-pinene (12.7 and 24.2 %, respectively) was found in high percentage. On the other hand, it has been determined that the dominant components of A. scoparia EO and HS were different; in the essential oil capillene (63.8 %) was found as the main constituent, while ?-pinene (26.1 %), (Z)-?-ocimene (23.8 %) and limonene (10.7 %) were the major components among the HS. This is the first report on the composition of HS volatiles of the A. annua and A. scoparia obtained by direct static headspace.

Toxic essential oils. Part II: Chemical, toxicological, pharmacological and microbiological profiles of Artemisia annua L. volatiles

2013 ◽  
Vol 58 ◽  
pp. 37-49 ◽  
Author(s):  
Niko S. Radulović ◽  
Pavle J. Randjelović ◽  
Nikola M. Stojanović ◽  
Polina D. Blagojević ◽  
Zorica Z. Stojanović-Radić ◽  
...  
Keyword(s):  
Essential Oils ◽  
Artemisia Annua ◽  
Artemisia Annua L

scholarly journals GC MS Analysis of the Volatile Constituents of Essential Oil and Aromatic Waters of Artemisia Annua L. at Different Developmental Stages

2008 ◽  
Vol 3 (12) ◽  
pp. 1934578X0800301 ◽  
Author(s):  
Anna Rita Bilia ◽  
Guido Flamini ◽  
Fabrizio Morgenni ◽  
Benedetta Isacchi ◽  
Franco FrancescoVincieri
Keyword(s):  
Essential Oil ◽  
Developmental Stages ◽  
Artemisia Annua ◽  
Volatile Oil ◽  
Flowering Stage ◽  
Development Stages ◽  
Qualitative And Quantitative ◽  
Artemisia Annua L ◽  
Germacrene D ◽  
Long Time

Artemisia annua L. (Asteraceae) still represents the only source of artemisinin, considered as one of the most important drugs for the treatment of malaria and which, more recently, has been shown to be effective against numerous types of tumors. The foliage and inflorescence of A. annua also yield an essential oil upon hydrodistillation. This oil has been evaluated at different development stages (pre-flowering and flowering) by GC/MS. The volatile oil from plants at full blooming showed numerous constituents, with germacrene D (21.2%), camphor (17.6%), β-farnesene (10.2%), β-caryophyllene (9%), and bicyclogermacrene (4.2%) among the main ones. Aromatic waters, after extraction with n-hexane, showed the presence, among others, of camphor (27.7%), 1,8-cineole (14%), artemisia ketone (10.1%), α-terpineol (6.1%), trans-pinocarveol (5.4%), and artemisia alcohol (2%). From plants at the pre-flowering stage, aromatic waters were obtained with camphor (30.7%), 1,8-cineole (12.8%), artemisia alcohol (11.4%), artemisia ketone (9.5%), alpha-terpineol (5.8%), and trans-pinocarveol (3.0%) as the main constituents. The qualitative and quantitative profiles of the two aromatic waters were similar. These results permitted the conclusion to be made that A. annua could be harvested a long time before the onset of flowering to obtain higher yields of artemisinin or could be allowed to attain maturity to obtain valuable yields of volatiles.

Effect of Nitrogen and Potassium Fertilizers on Growth, Yield, Essential Oil and Artemisinin of Artemisia Annua L Plant

2014 ◽  
Vol 2 (2) ◽  
pp. 11 ◽  
Author(s):  
E. A. Omer ◽  
E. A Abou Hussein ◽  
S. F Hendawy ◽  
Azza A. Ezz El-din ◽  
A. G. El-Gendy
Keyword(s):  
Essential Oil ◽  
Artemisia Annua ◽  
Growth Yield ◽  
Artemisia Annua L

scholarly journals Effect of Artemisia annua L. essential oil on toxicity, enzyme activities, and energy reserves of cotton bollworm Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)

2015 ◽  
Vol 55 (4) ◽  
pp. 371-377 ◽  
Author(s):  
Malahat Mojarab-Mahboubkar ◽  
Jalal Jalali Sendi ◽  
Alireza Aliakbar
Keyword(s):  
Essential Oil ◽  
Helicoverpa Armigera ◽  
Artemisia Annua ◽  
Instar Larva ◽  
Cotton Bollworm ◽  
Northern Iran ◽  
Artemisia Annua L ◽  
Important Pest ◽  
Helicoverpa Armígera ◽  
Helicoverpa Armigera Hubner

AbstractThe essential oil of Artemisia annua L., a weed collected from northern Iran, was studied for its toxicity and physiological aspects on 4th instar larva of the cotton bollworm Helicoverpa armigera Hübner in controlled conditions (26±1°C, 65±10% RH and 16 L : : 8 D h). The artificial diet was used as a medium for investigating the toxicity and the effect of LC10, LC30, LC50, and LC90on the feeding efficiency of 4th instar larva. The essential oil in doses of LC10, LC30, LC50, and LC90were estimated to be 2.01%, 3.86%, 6.07%, and 18.34%, respectively. The activity of α-amylase, protease, lipase, general esterases, and glutathione S-transferase and protein, triglyceride, glucose for treated larva were measured. The results showed that all of these parameters were decreased compared with the control. Hence, A. annua essential oil is suggested as a botanical for controlling this important pest of field crops.

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