Results 61 to 70 of about 63,391 (300)

Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions. [PDF]

open access: yes, 2019
One barrier to predicting biogenic secondary organic aerosol (SOA) formation in a changing climate can be attributed to the complex nature of plant volatile emissions.
Buchholz, Angela   +11 more
core  

Isolation, spectroscopic characterization, X-ray, theoretical studies as well as in vitro cytotoxicity of Samarcandin [PDF]

open access: yes, 2016
Samarcandin 1, a natural sesquiterpene-coumarin, was isolated as well as elucidated from F. assa-foetida which has significant effect in Iranian traditional medicine because of its medicinal attitudes.
Atabaki, V.   +7 more
core   +1 more source

Effect of Fruit Maturation Stage on the Chemical Composition and Antioxidant and Cytotoxic Activities of Piper nigrum Essential Oil

open access: yesFlavour and Fragrance Journal, EarlyView.
The essential oils of Piper nigrum show marked chemical and biological variation across fruit maturation stages. Ripe fruits yield oils with the strongest antioxidant and cytotoxic activities, demonstrating that maturation directly modulates volatile composition and enhances the bioactive potential of this aromatic species.
Marcio Marcelo da Siva Pessoa   +6 more
wiley   +1 more source

A review of the anticancer effects of sesquiterpene nerolidol on different malignant conditions [PDF]

open access: yesJournal of Medicinal Plants
Background: Nerolidol (NER) is a sesquiterpene alcohol with various biological ‎and pharmacological activities, especially antitumor effects against different cancer models. The ‎anticancer properties of NER‎ are reportedly mediated by increased reactive
Ameneh Mohammadi   +5 more
doaj  

Genomic Analysis of Terpene Synthase Family and Functional Characterization of Seven Sesquiterpene Synthases from Citrus sinensis

open access: yesFrontiers in Plant Science, 2017
Citrus aroma and flavor, chief traits of fruit quality, are derived from their high content in essential oils of most plant tissues, including leaves, stems, flowers, and fruits.
Berta Alquézar   +6 more
doaj   +1 more source

In Vitro Anti-Influenza A Virus H1N1 Effect of Sesquiterpene-Rich Extracts of Carpesium abrotanoides

open access: yesMolecules, 2022
Due to a high content of sesquiterpenes, Carpesium abrotanoides has been investigated to fully explore its health-promoting properties. Therefore, this work aimed to assess, for the first time, the anti-influenza A virus H1N1 potential of sesquiterpene ...
Li Li   +7 more
doaj   +1 more source

Directed enzyme evolution: climbing fitness peaks one amino acid at a time [PDF]

open access: yes, 2009
Directed evolution can generate a remarkable range of new enzyme properties. Alternate substrate specificities and reaction selectivities are readily accessible in enzymes from families that are naturally functionally diverse.
Arnold, Frances H., Tracewell, Cara A.
core   +2 more sources

Antioxidant and Cytotoxic Properties of Piper spp. Volatile Oils That Inhibit Pathogenic Microorganisms

open access: yesFlavour and Fragrance Journal, EarlyView.
The samples were fungicidal against Candida, with MICs ranging from 62.5 to 250 μg/mL, and fungistatic against Penicillium adametzii, Aspergillus flavus and A. niger, with MICs of 1000 μg/mL. The volatile oils of Piper aduncum and Piper marginatum reduced the viability of MDA‐MB231 cells.
Midiã R. Oliveira   +11 more
wiley   +1 more source

Insect Antifeedant Components of Senecio fistulosus var. fistulosus—Hualtata

open access: yesPlants, 2019
From a bioactive methanolic extract of Senecio fistulosus, the antifeedant effects of the alkaloidal and non-alkaloidal fractions were tested against the insects Spodoptera littoralis, Myzus persicae and Rhopalosiphum padi, with the non-alkaloidal ...
Liliana Ruiz-Vásquez   +4 more
doaj   +1 more source

Erioflorin stabilizes the tumor suppressor Pdcd4 by inhibiting its interaction with the E3-ligase β-TrCP1 [PDF]

open access: yes, 2012
Loss of the tumor suppressor Pdcd4 was reported for various tumor entities and proposed as a prognostic marker in tumorigenesis. We previously characterized decreased Pdcd4 protein stability in response to mitogenic stimuli, which resulted from p70S6K1 ...
Bajer, Magdalena M.   +11 more
core   +3 more sources

Home - About - Disclaimer - Privacy