نتایج جستجو برای: artemissia annua

تعداد نتایج: 1264  

2005
J. F. S. Ferreira J. C. Laughlin N. Delabays P. M. de Magalhães

Malaria has been treated for over 350 years with quinine and quinine-derived drugs. However, in several areas of the world, some strains of the malarial parasite Plasmodium falciparum have developed resistance against these drugs. Recently, the World Health Organization (WHO) recommended the use of artemisinin-combination treatments (ACT) as the first-line treatment for multidrug-resistant falc...

Journal: :Journal of chromatography. A 2006
Filip C W Van Nieuwerburgh Sofie R F Vande Casteele Lies Maes Alain Goossens Dirk Inzé Jan Van Bocxlaer Dieter L D Deforce

This study reports the development and validation of a rapid, sensitive and selective assay for the quantitation of artemisinin, arteannuin B, artemisitene and artemisinic acid in Artemisia annua L. by reversed phase high performance liquid chromatography (HPLC) electrospray (ESI) quadrupole time of flight (Q-TOF) tandem mass spectrometry (MS/MS). A recovery of >97% for all analytes was achieve...

2013
Shereen Elkholy

Shoot cultures of Artemisia annua L. were cultivated in three different micropropagation systems: an ultrasonic nutrient mist bioreactor (UNMB), a modified ultrasonic nutrient mist bioreactor (MUNMB) and solid culture in Magenta boxes. The shoots cultivated in the UNMB and MUNMB showed excellent growth. The dry weight increase (35 times) of shoot cultures in the MUNMB was higher than those (25 ...

Journal: :Chemistry of Natural Compounds 1971

2014
Ning Zhang Liang Tang Wei Hu Kun Wang You Zhou Hong Li Congling Huang Jiong Chun Zhixiang Zhang

In total, 29 compounds from sweet wormwood (Artemisia annua L.) oil were identified using gas chromatography-mass spectrometry. The five active components were D-camphor, linalool, cineole, α-terpineol, and L(-)-borneol. The effectiveness of A. annua oil, as well as d-camphor, linalool, cineole, α-terpineol, and L(-)-borneol, as fumigants, contact insecticides, and repellents, were tested on th...

Journal: :Pharmacological reports : PR 2013
Xiaoxin X Zhu Lan Yang Yujie J Li Dong Zhang Ying Chen Petra Kostecká Eva Kmoníčková Zdeněk Zídek

BACKGROUND In addition to recognized antimalarial effects, Artemisia annua L. (Qinghao) possesses anticancer properties. The underlying mechanisms of this activity are unknown. The aim of our experiments was to investigate the effects of distinct types of compounds isolated from A. annua on the immune-activated production of major mediators of angiogenesis playing a crucial role in growth of tu...

Journal: :Sustainable Environment 2021

Sesame is an important oil crop and very well-known for its quality plant oil. The study was conducted in Kafta-Humera to assess the rainfall variability distribution of area at annua...

2013
Lili Li Xiaoning Wang Jinsheng Sun Yichen Zhang Song Qin

The large amount of coastal plant species available makes them ideal candidates for energy production. In this study, thermogravimetric analysis was used to evaluate the fuel properties of two coastal plant species, and the distributed activation energy model (DAEM) was employed in kinetic analysis. The major mass loss due to devolatilization started at 154 and 162°C at the heating rate of 10°C...

Journal: :Molecules 2012
Shahid Iqbal Umer Younas Kim Wei Chan Muhammad Zia-Ul-Haq Maznah Ismail

This study was conducted to investigate the chemical and nutritional composition of Artemisia annua leaves in addition to determination of antioxidant potential of their extracts prepared in different solvents. Chemical composition was determined by quantifying fat, protein, carbohydrate, fiber, tocopherol, phytate, and tannin contents. Extraction of A. annua leaves, for antioxidant potential e...

Journal: :Journal of environmental biology 2006
Shobhita Tonk Roll Bartarya K Maharaj Kumari V P Bhatnagar S S Srivastava

Leaves of Artemisia annua linn. and Azadirachta indica were extracted in petroleum ether and hexane respectively by different methods of extraction i.e. cold extraction, reflux extraction and soxhlet extraction. The crude extract obtained was tested against third instar larvae of Anopheles stephensi. On comparison of larval mortality of crude extract obtained by these three methods, both soxhle...

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