Results 21 to 30 of about 19,333 (246)

Thermodynamics of the Isomerization of Monoterpene Epoxides [PDF]

open access: yesACS Omega, 2021
In this contribution, the thermodynamic analysis of α- and β-pinene epoxide isomerization over Fe and Cu supported on MCM-41 is presented using computational chemistry and group contribution methods (GCMs). Some physical-chemical data (T c, P c, v c, Z c, ω, T b, T fus) and thermodynamic (S°298.15, C p,298.15 °, C v,298.15 °, ΔH f,298.15 °, ΔG f,298.15
Julián E. Sánchez-Velandia   +4 more
openaire   +3 more sources

Evaluation of the Insecticidal Activities of α-Pinene and 3-Carene on Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

open access: yesInsects, 2020
Pest management in most sub-Saharan subsistence agriculture involves mainly the use of botanicals that are either applied as powders, solvent extracts, ash or essential oils.
Jacob D. Langsi   +5 more
doaj   +1 more source

Essential Oils of Lamiaceae Family Plants as Antifungals

open access: yesBiomolecules, 2020
The incidence of fungal infections has been steadily increasing in recent years. Systemic mycoses are characterized by the highest mortality. At the same time, the frequency of infections caused by drug-resistant strains and new pathogens e.g., Candida ...
Tomasz M. Karpiński
doaj   +1 more source

Biological Activities of Essential Oils: From Plant Chemoecology to Traditional Healing Systems

open access: yesMolecules, 2017
Essential oils are complex mixtures of hydrocarbons and their oxygenated derivatives arising from two different isoprenoid pathways. Essential oils are produced by glandular trichomes and other secretory structures, specialized secretory tissues mainly ...
Javad Sharifi-Rad   +12 more
doaj   +1 more source

Atividade antimicrobiana de óleos essenciais em bactérias patogênicas de origem alimentar Antimicrobial activity of essential oils against sessile and planktonic pathogens of food source

open access: yesRevista Brasileira de Plantas Medicinais, 2012
Objetivou-se identificar e quantificar os constituintes e avaliar a atividade antimicrobiana dos óleos essenciais de Mentha piperita, Cymbopogon citratus, Ocimum basilicum e Origanum majorana contra cepas de Escherichia coli enteropatogênica, Salmonella ...
C. Valeriano   +3 more
doaj   +1 more source

Adaptation of hydroxymethylbutenyl diphosphate reductase enables volatile isoprenoid production

open access: yeseLife, 2020
Volatile isoprenoids produced by plants are emitted in vast quantities into the atmosphere, with substantial effects on global carbon cycling. Yet, the molecular mechanisms regulating the balance between volatile and non-volatile isoprenoid production ...
Mareike Bongers   +7 more
doaj   +1 more source

Condensed Phase Kinetic Studies of Hydroxynitrates Derived from the Photooxidation of Carene, Limonene, trans-Carveol, and Perillic Alcohol

open access: yesAtmosphere, 2022
Organic hydroxynitrates (HNs) are key products of hydrocarbon oxidation in the atmosphere. Understanding the fate and processing of these molecules is critical due to their function in the sequestration of NOx species from the atmosphere and in the ...
James I. Vesto   +7 more
doaj   +1 more source

Synthesis and Antiviral Properties of Camphor-Derived Iminothiazolidine-4-Ones and 2,3-Dihydrothiazoles

open access: yesMolecules, 2022
A set of heterocyclic products was synthesized from natural (+)-camphor and semi-synthetic (−)-camphor. Then, 2-Imino-4-thiazolidinones and 2,3-dihydrothiazoles were obtained using a three-step procedure.
Vladislav V. Oreshko   +9 more
doaj   +1 more source

New Thio-Compounds and Monoterpenes With Anti-inflammatory Activities From the Fungus Aspergillus sp. CYH26

open access: yesFrontiers in Microbiology, 2021
Two new thio-compounds named aspergerthinol A and B (1 and 2) and two new monoterpenes named aspergerthinacids A and B (3 and 4) were isolated from the fungus Aspergillus sp. CYH26 from the rhizosphere soil of Cynanchum bungei Decne.
Guojun Pan   +13 more
doaj   +1 more source

Can seedlings of Norway spruce (Picea abies L. H. Karst.) populations withstand changed climate conditions?

open access: yesPhotosynthetica, 2023
A manipulative experiment with two different water regimes was established to identify the variability of physiological responses to environmental changes in 5-year-old Norway spruce provenances in the Western Carpathians.
H. HÚDOKOVÁ   +8 more
doaj   +1 more source

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