Search results for "MEDICINAL PLANTS"
showing 10 items of 108 documents
Composition of the essential oil of allium neapolitanum cirillo growing wild in sicily and its activity on microorganisms affecting historical art cr…
2015
Essential oil of the aerial parts of Allium neapolitanum Cirillo collected in Sicily were analyzed by gas-chromatography-flame-ionization detection and gas-chromatography-mass spectrometry. Nineteen compounds were identified in the oil and the main components were found to be (E)-chrysanthenyl acetate (28.1%), (Z)-chrysanthenyl acetate (23.8%), (E)-β-farnesene (9.6%), dimethyl trisulfide (9.6%), camphor (7.4%), methyl allyl disulfide (6.8%) and 1-methyl-3-allyl trisulfide (5.8%). The essential oil showed good antimicrobial activity against 11 strains of test microorganisms, including several species infesting historical material.
Essential oils composition of Periploca laevigata Aiton subsp. angustifolia (Labill.) Markgraf (Apocynaceae – Periplocoideae)
2012
The essential oil of roots, branches, leaves, flowers and fruits of Periploca laevigata Aiton subsp. angustifolia (Apocynaceae) from Lampedusa Island has been obtained by hydrodistillation and its composition analysed. The analyses allowed the identification and quantification of 86 volatile compounds. Branches showed the higher diversity with 57 compounds followed by fruits with 33, roots with 23, flowers with 16 and leaves with six compounds, respectively. In the matrices examined three constituents, heneicosane, docosane and tricosane are in common, although with different percentages. At least the most abundant compounds found in the matrices have been reported to have several biologica…
Furoquinolines and dihydrooxazole alkaloids with cytotoxic activity from the stem bark of Araliopsis soyauxii.
2018
Abstract Two new furoquinoline alkaloids, maculine B (1) and kokusaginine B (2) and one new dihydrooxazole alkaloid, veprisazole (3), along with four known compounds namely, N13-methyl-3-methoxyrutaecarpine (4), flindersiamine (5), skimmianine (6) and tilianin (7) were isolated from the methanol extract of the stem bark of Araliopsis soyauxii Engl. by various chromatographic methods. Their structures were determined using spectrometry and spectroscopic techniques including NMR and MS. The cytotoxicity of the new compounds compared to that of doxorubicin, the reference anticancer compound, was determined on a panel of nine cancer cell lines including sensitive and drug resistant phenotypes. …
Coumarins and Related Compounds from the Medicinal Plants of Africa
2013
Coumarins (1-benzopyran-2-one) are chemical compounds in the benzopyrone class of organic compounds found in many plants. Coumarins possess a variety of biological properties, including antimicrobial, antiviral, antiinflammatory, antidiabetic, antioxidant, and enzyme inhibitory activity. This chapter gives an overview of the isolation, structural features, and pharmacological actions of variety of coumarins produced by the African plants. The biosynthetic pathway of coumarins is also discussed in this chapter. We identify 117 coumarins in African plants, of which 48 are new. The pharmacological activities of 54 of these coumarins are reported and documented in this chapter.
Archéologie de l'agripaume, du pot à la plante : céramologie, botanique et carpologie
2017
ZusammenfassungEine reliefverzierte Sigillataschüssel vom Typ Drag. 29b, die zum keramischen Fundmaterial einer jüngst imBereich der Altstadthalbinsel von Lyon durchgeführten Grabung stammt, weist eine Pflanzendarstellung als Reliefdekor auf, die so präzise ist, dass die dargestellte Pflanze von den Botanikern anhand der charakteristischen Blattform bestimmt werden konnte. Ihre Ansprache als Herzgespann oder Löwenschwanz (Leonurus cardiaca L.), einer zumindest seit der Antike bekannten und genutzten Heilpflanze, bietet die Gelegenheit, die medizinischen Wirkungen der Pflanze, ihre Anwendungen sowie ihre archäobotanischen Nachweise vorzustellen. Ferner wird der außergewöhnliche Charakter die…
Novel Developments on Artemisinin and Its Derivatives for Cancer Therapy
2009
The lack of effective long-term anticancer therapy highlights the necessity to identify new potent anticancer compounds. Many biocompounds of naturally occurring medicinal plants have pharmacological activities and, thus, represent a source of molecules that may have anti-proliferative effects on a variety of cancers. During the past 10 years, we have systematically analyzed medicinal plants used in traditional Chinese medicine and focused our interest on Artemisia annua (sweet wormwood herb). The active principle of sweet wormwood herb is Artemisinin, a sesquiterpene, which exerts not only anti-malarial activity but also profound cytotoxicity against tumour cells. The anti-tumour mechanism…
Le lumie di Sicilia: note storiche e botaniche
2015
Citrus lumia Risso is one of the old cultivated limes in Sicily, Mediterranean Europe and North Africa; For this reason, besides lumia, it is called Mediterranean lime. It is a small tree, with unarmed branches; obovate, obtuse leaves, with serrate margins and slightly winged petioles; flowers of medium size, fragrant, with petals externally reddish; fruit globose, umbonate, with base and apex de- pressed; umbo conical, dotted at the base; smooth, yellow-sulphureous, aromatic peel; thin and bitter mesocarp; endocarp with sweet juice, consisting of 9 -11 logs containing many seeds. It is distinguished from C. limetta Risso by the colour of petals and some other carpological and foliar charac…
Potential of ‘Omics’ Technologies for Implementation in Research on Phytotherapeutical Toxicology
2012
Abstract High toxicity is the most common reason why new agents drop out of drug development in the pharmaceutical industry. There is hope that toxicogenomics facilitates the early detection of toxic effects and their molecular mechanisms of action during preclinical studies to remove potentially toxic substances from the development. Herbal remedies consist of mixtures of different herbs, which represent a considerable source of heterogeneity and toxicity. They may be caused by botanical misidentification, contamination with pesticides, heavy metals, organic solvents, microbials and radioactivity. Intentional faked herbal products may contain chemical drugs or hormones. Approaches to apply…
Harmful and Protective Effects of Terpenoids from African Medicinal Plants
2014
Terpenoids represent the most widespread group of natural products and can be found in all classes of living things. Many defensive compounds include sesquiterpenoids and diterpenoids from angiosperm species. Several terpenoids are biologically active and are exploited in the fight against cancer, malaria, inflammation, and a variety of infectious diseases. Nonetheless, some compounds of this group showed toxic effects causing gastrointestinal problems or central nervous system manifestations among others. Several bioactive terpenoids were identified in African medicine with numbers of them having organ-protective effects while few are known for their nonbeneficial properties for humans. In…
MARKET ASSESSMENT OF HERBAL SUPPLEMENTS IN ROMANIA FOR A PERIOD OF 10 YEARS USING A HOLISTIC APPROACH
2012
s. PHYTOPHARM 2012 M 102 Obzory po kliniceskoj farmacologii i lekarstvennoj terapii [Reviews of clinical pharmacology and drug therapy] ТОМ 10/2012/2 MARKET ASSESSMENT OF HERBAL SUPPLEMENTS IN ROMANIA FOR A PERIOD OF 10 YEARS USING A HOLISTIC APPROACH © Stoia Mihaela , Oancea Simona , Coman Diana 3 Faculty of Medicine, Lucian Blaga University of Sibiu, Romania Department of Agricultural Sciences, Food Industry and Environmental Protection, Lucian Blaga University of Sibiu, Romania Faculty of Engineering, Lucian Blaga University of Sibiu, Romania Almost nonexistent in the early ‘90s, herbal supplements market gained an important dimension to Romanians, with the growing awareness and the amou…