Results 21 to 30 of about 47,089 (279)

Essential oil composition of hypericum atomarium boiss [PDF]

open access: yesHemijska Industrija, 2004
The essential oil of Hypericum atomarium Boiss. was analysed for the first time. Seven components were identified, accounting for 83.6% of the total oil.
Gudžić Branislav   +3 more
doaj   +1 more source

Health monitoring of plants by their emitted volatiles: A temporary increase in the concentration of nethyl salicylate after pathogen inoculation of tomato plants at greenhouse scale [PDF]

open access: yes, 2011
This paper describes a method to alert growers of the presence of a pathogen infection in their greenhouse based on the detection of pathogen-induced emissions of volatile organic compounds (VOCs) from plants. Greenhouse-grown plants were inoculated with
Bouwmeester, H.J.   +5 more
core   +2 more sources

Nerolidol and Farnesol Inhibit Some Cytochrome P450 Activities but Did Not Affect Other Xenobiotic-Metabolizing Enzymes in Rat and Human Hepatic Subcellular Fractions

open access: yesMolecules, 2017
Sesquiterpenes, 15-carbon compounds formed from three isoprenoid units, are the main components of plant essential oils. Sesquiterpenes occur in human food, but they are principally taken as components of many folk medicines and dietary supplements.
Alena Špičáková   +9 more
doaj   +1 more source

MS/MS studies on the selective on-line detection of sesquiterpenes using a Flowing Afterglow-Tandem Mass Spectrometer (FA-TMS) [PDF]

open access: yes, 2011
A Flowing Afterglow-Tandem Mass Spectrometer (FA-TMS) was used to investigate the feasibility of selective on-line detection of a series of seven sesquiterpenes (SQTs).
Amelynck, C   +4 more
core   +2 more sources

The Prospective Use of Brazilian Marine Macroalgae in Schistosomiasis Control

open access: yesMarine Drugs, 2021
Schistosomiasis is a parasitic disease that affects more than 250 million people. The treatment is limited to praziquantel and the control of the intermediate host with the highly toxic molluscicidal niclosamide.
Erika M. Stein   +12 more
doaj   +1 more source

Secondary Metabolites with Anti-Inflammatory Activity from Laurencia majuscula Collected in the Red Sea

open access: yesMarine Drugs, 2023
The chemical investigation of the organic extract of the red alga Laurencia majuscula collected from Hurghada reef in the Red Sea resulted in the isolation of five C15 acetogenins, including four tricyclic ones of the maneonene type (1–4) and a 5 ...
Mohamed A. Tammam   +8 more
doaj   +1 more source

Seasonal measurements of total OH reactivity fluxes, total ozone loss rates and missing emissions from Norway spruce in 2011 [Discussion paper] [PDF]

open access: yes, 2012
Numerous reactive volatile organic compounds (VOCs) are emitted into the atmosphere by vegetation. Most biogenic VOCs are highly reactive towards the atmosphere's most important oxidant, the hydroxyl (OH) radical.
Bonn, Boris   +5 more
core   +1 more source

Isolation, Structure Determination of Sesquiterpenes from Neurolaena lobata and Their Antiproliferative, Cell Cycle Arrest-Inducing and Anti-Invasive Properties against Human Cervical Tumor Cells

open access: yesPharmaceutics, 2021
Seven new germacranolides (1–3, 5–8), among them a heterodimer (7), and known germacranolide (4), eudesmane (9) and isodaucane (10) sesquiterpenes were isolated from the aerial parts of Neurolaena lobata.
Andrea Vasas   +13 more
doaj   +1 more source

Eucalyptus oleosa Essential Oils: Chemical Composition and Antimicrobial and Antioxidant Activities of the Oils from Different Plant Parts (Stems, Leaves, Flowers and Fruits) [PDF]

open access: yes, 2011
Essential oils obtained by hydrodistillation from the different parts (stems, adult leaves, immature flowers and fruits) of Eucalyptus oleosa were screened for their antioxidant and antimicrobial properties and their chemical composition. According to GC-
Ahmed Lebrihi   +21 more
core   +4 more sources

Essential Oil Composition of – a rare and Endangered Species in the Flora of Serbia

open access: yesNatural Product Communications, 2012
Cachrys cristata DC. (Apiaceace) is a rare and critically endangered species in the flora of Serbia. Essential oil isolated by hydrodistillation from the aerial parts and fruits of this species was analyzed using combined GC and GC/MS.
Jelena S. Matejić   +4 more
doaj   +1 more source

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