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ageratum_conyzoides_l [2015/03/14 12:12] andreas |
ageratum_conyzoides_l [2015/06/13 11:36] (aktuell) |
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Annual herb, up to 1m high, native to tropics, | Annual herb, up to 1m high, native to tropics, | ||
- | "The essential oils isolated from the leaves of Ageratum houstonianum Mill, and Ageratum conyzoides L. by hydrodistillation were analysed by GLC and GC-MS. The essential oil of A. houstonianum contained 7-methoxy-2, | + | "As a medicinal plant, Ageratum conyzoides has limited uses due to its toxicity. It is also an insecticide and nematicide. Ingesting A. conyzoides can cause liver lesions and tumors. There was a mass poisoning incident in Ethiopia as a result of contamination of grain with A. conyzoides. The plant contains the pyrrolizidine alkaloids lycopsamine and echinatine." |
+ | [[https:// | ||
+ | [Plants containing pyrrolizidine alkaloids: toxicity and problems, H. Wiedenfeld, Food Additives & Contaminants: | ||
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+ | "The essential oils isolated from the leaves of [[http:// | ||
[Aromatic plants of tropical central Africa. Part X Chemical composition of the essential oils of Ageratum houstonianum Mill. and Ageratum conyzoides L. from Cameroon., Menut, C., Lamaty, G., Zollo, P.H., Kuiate, J.R., Bessiere, J.M., Flavour and fragrance journal, Vol.8(1), 1993, 1-4] | [Aromatic plants of tropical central Africa. Part X Chemical composition of the essential oils of Ageratum houstonianum Mill. and Ageratum conyzoides L. from Cameroon., Menut, C., Lamaty, G., Zollo, P.H., Kuiate, J.R., Bessiere, J.M., Flavour and fragrance journal, Vol.8(1), 1993, 1-4] | ||
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+ | "The plant grows commonly in waste and on ruined sites. It has a peculiar odour likened in Australia to that of a male goat and hence its name 'goat weed' or 'billy goat weed'. | ||
- | "The weed has been known since ancient times for its curative properties and has been utilized for treatment of various ailments, such as burns and wounds, for antimicrobial properties, for many infectious conditions and bacterial infections, arthrosis, headaches and dyspnea, pneumonia, analgesic, anti-inflammatory, | + | The essential oil obtained from plant has been reported to have a powerful nauseating odour and found to be poisonous to rabbits due to the presence of HCN and coumarin. The herb is not eaten by humans except for medicinal purposes, but in some cultures, it is a delicacy for domestic guinea-pigs, |
+ | The weed has been known since ancient times for its curative properties and has been utilized for treatment of various ailments, such as burns and wounds, for antimicrobial properties, for many infectious conditions and bacterial infections, arthrosis, headaches and dyspnea, pneumonia, analgesic, anti-inflammatory, | ||
+ | The water soluble fraction of the plant extract produces peripheral analgesic activity and an anti-inflammatory action, which seems to occur in leucocyte-dependent inflammatory events. Silva et al ., investigating the effect on smooth muscles using isolated rat uterus and intestine smooth muscles, concluded that the fraction possesses substances, which provoke direct relaxing effect on smooth muscles and inhibit contraction induced by several agonists possibly by blocking the entry of calcium and/or inhibiting cAMP phosphodiesterase. These pharmacological characteristics could explain the popular use of AC to alleviate abdominal and menstrual pains." \\ | ||
[Kamboj A, Saluja AK. Ageratum conyzoides L.: A review on its phytochemical and pharmacological profile. Int J Green Pharm 2008; | [Kamboj A, Saluja AK. Ageratum conyzoides L.: A review on its phytochemical and pharmacological profile. Int J Green Pharm 2008; | ||
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[Ageratum conyzoides essential oil as aflatoxin suppressor of Aspergillus flavus., Nogueira, J.H., Gonçalez, E., Galleti, S.R., Facanali, R., Marques, M.O., Felício, J.D., International journal of food microbiology, | [Ageratum conyzoides essential oil as aflatoxin suppressor of Aspergillus flavus., Nogueira, J.H., Gonçalez, E., Galleti, S.R., Facanali, R., Marques, M.O., Felício, J.D., International journal of food microbiology, | ||
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+ | [Pyrrolizidine alkaloids in medicinal tea of Ageratum conyzoides, Bosi C.F. et al., Revista Brasileira de Farmacognosia, | ||
"The chemical composition of the hydro-distilled essential oils of leaf, flower, stem and root of Ageratum conyzoides L. were analyzed by gas chromatography... The major constituents were 6-demethoxy-ageratochromene (precocene I) and β-caryophyllene dominated in leaf (72.3%; 12.1%), stem (66.5%; 10.2%), flower (50.3%; 14.6%) and root (79.3%; 6.0%) essential oils. The compound ageratochromene (precocene II) was found relatively high amount in flower (10.5%) than leaf (3.1%), root (0.4%) and stem (0.3%) oils. The occurrence of androencecalinol is being reported for the first time in leaf, flower, stem and root oils in low quantity (0.7 - 0.3%)." | "The chemical composition of the hydro-distilled essential oils of leaf, flower, stem and root of Ageratum conyzoides L. were analyzed by gas chromatography... The major constituents were 6-demethoxy-ageratochromene (precocene I) and β-caryophyllene dominated in leaf (72.3%; 12.1%), stem (66.5%; 10.2%), flower (50.3%; 14.6%) and root (79.3%; 6.0%) essential oils. The compound ageratochromene (precocene II) was found relatively high amount in flower (10.5%) than leaf (3.1%), root (0.4%) and stem (0.3%) oils. The occurrence of androencecalinol is being reported for the first time in leaf, flower, stem and root oils in low quantity (0.7 - 0.3%)." |