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artemisinic acid/artemisia gmelinii
Koblingen er lagret på utklippstavlen
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Isolation of a high artemisinic acid containing plant of Artemisia annua.
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A plant of Artemisia annua containing high amounts of artemisinic acid (0.8%) was isolated. the combined concentration of the sesquiterpene artemisinin, and its intermediates artemisinic acid and artemisinin-b in this plant was 1.35%. the plant has been cloned by micropropagation in tissue culture.
Simultaneous densitometric determination of artemisinin, artemisinic acid and arteannuin-B in Artemisia annua using reversed-phase thin layer chromatography.
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A rapid and simple RP-TLC method for simultaneous quantification of pharmacologically important sesquiterpene artemisinin (AM) together with its precursors arteannuin-B (AB) and artemisinic acid (AA) in the inflorescence part of Artemisia annua plant has been developed. The RP-TLC of sesquiterpenes
Nutrient deficiency in the production of artemisinin, dihydroartemisinic acid, and artemisinic acid in Artemisia annua L.
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Artemisia annua became a valuable agricultural crop after the World Health Organization recommended artemisinin as a component of ACT (artemisinin-combination based therapies) for malaria in 2001. A cloned, greenhouse-grown, A. annua (Artemis) subjected to an acidic soil and macronutrient deficit
[Detection and analysis of effect of geographical environmental factors on spatial distribution of artemisinic acid in Artemisia annua].
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Dao-di herbs are preferred by long-term clinical application of Chinese medicine, they are produced in a specific area and affected by the specific production and processing methods. Dao-di herbs have a high reputation, compared with other regions produced by the same kind of herbs with good
Drying affects artemisinin, dihydroartemisinic acid, artemisinic acid, and the antioxidant capacity of Artemisia annua L. leaves.
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There is limited information on how postharvest drying of Artemisia annua affects artemisinin (ART) biosynthesis and A. annua antioxidant capacity. Antioxidants may boost the bioactivity of ART and the crop commercial value. We evaluated the effect of freeze, oven, shade, and sun drying, time of
Crystal structure of artemisinic acid: a possible biogenetic precursor of antimalarial artemisinin from Artemisia annua.
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Artemisinic acid [1], a possible biogenetic precursor of the antimalarial artemisinin [2], was isolated from the hexane extract of Artemisia annua. X-ray crystallography of the dimer of artemisinic acid shows that the cyclization during intermolecular hydrogen bonding occurs by the opposite
[Determination of artemisinic acid in Artemisia annua at different growth stages based on spot area].
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OBJECTIVE
Based on the important medicinal applications of artemisinic acid and the superiority of Thin Layer Chromagraphy (TLC), the spot area method of TLC was presented to determine the content changes of artemisinic acid of Artemisia annua at different growing stages.
METHODS
The separation
[Biotransformation of artemisinic acid by cell suspension cultures of Cephalotaxus fortunei and Artemisia annua].
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OBJECTIVE
To investigate the biotransformation of artemisinic acid by cell suspension cultures of Cephalotaxus fortunei and Artemisia annua.
METHODS
Artemisinic acid was added into to the media of the suspension cells of Cephalotaxus fortunei and Artemisia annua in their logarithmic growth phase.
Extraction of artemisinin and artemisinic acid from Artemisia annua L. using supercritical carbon dioxide.
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Artemisinin (an antimalaric compound) and its major precursor artemisinic acid, isolated as the active principles of the medicinal plant Artemisia annua L., were extracted by supercritical fluid extraction (SFE) and analyzed by supercritical fluid chromatography (SFC) using a capillary column,
Affordable and rapid HPTLC method for the simultaneous analysis of artemisinin and its metabolite artemisinic acid in Artemisia annua L.
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Artemisinin (AN) and artemisinic acid (AA), valuable phyto-pharmaceutical molecules, are well known anti-malarials, but their activities against diseases like cancer, schistosomiasis, HIV, hepatitis-B and leishmaniasis are also being reported. For the simultaneous estimation of AN and AA in the
An Improved Method for the Isolation of Qinghao (Artemisinic) Acid from Artemisia annua.
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Production of Artemisinin and Related Sesquiterpenes in Japanese Artemisia annua During a Vegetation Period.
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Seeds of ARTEMISIA ANNUA L. originating from a wild population in Japan were cultivated in the garden planters of our Institute in 1995, and the seasonal and positional variations in content of artemisinin, artemisinic acid, arteannuin B and artemisitene, were measured. The content of artemisinic
Simultaneous isolation of artemisinin and its precursors from Artemisia annua L. by preparative RP-HPLC.
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It is still a major challenge to simultaneously isolate artemisinin and its precursors, especially dihydroartemisinic acid and artemisinic acid, from herbal Artemisia annua. A rapid, economical and automatical chromatographic separation process to isolate and purify artemisinin, dihydroartemisinic
Agrobacterium rhizogenes-mediated transformation of Artemisia annua: production of transgenic plants.
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Transgenic hairy roots were induced in the leaves of Artemisia annua by treatment with the LBA 9402 strain of Agrobacterium rhizogenes. The axenic hairy root cultures were found to produce the sesquiterpenes artemisinic acid and arteannuin B. The hairy root cultures were observed to spontaneously
Simultaneous Quantification of Five Sesquiterpene Components after Ultrasound Extraction in Artemisia annua L. by an Accurate and Rapid UPLC⁻PDA Assay.
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Objective: To develop an accurate and rapid ultra-performance liquid chromatography (UPLC) coupled with a photodiode array (PDA) method for the simultaneous determination of artemisinin (Art), arteannuin B (Art B), arteannuin C (Art C), dihydroartemisinic acid (DHAA) and artemisinic acid (AA)
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