Results 121 to 130 of about 890,985 (204)

Variations in the headspace volatile profiles of three different Achillea coarctata Poir. (Asteraceae) populations

open access: yesBiologica Nyssana, 2015
This study presents a detailed compositional analysis of six Achillea coarctata Poir. samples obtained by static headspace method and interrelationships based on the volatiles profiles from different plant parts, three different populations and ...
Radojković-Kostevski, I.   +4 more
doaj  

Adsorption and Dilational Viscoelasticity of Saponin at the β-Pinene/Water and Air/Water Interfaces

open access: yesColloids and Interfaces
Understanding adsorption and interfacial properties of surface-active agents at interfaces is crucial to the formation and stability of colloidal systems such as emulsions and foams. In this work, interfacial tension and viscoelasticity of saponin at the
Feng Lin
doaj   +1 more source

Plot of Distillation time vs yield (mg/100 seed) of α-pinene, β-pinene, γ-cymene, γ-terpinene, cumin aldehyde, α-terpinen-7-al, and β-terpinen-7-al along with the fitted (solid line) Power and Michaelis-Menten models.

open access: yes, 2016
Plot of Distillation time vs yield (mg/100 seed) of α-pinene, β-pinene, γ-cymene, γ-terpinene, cumin aldehyde, α-terpinen-7-al, and β-terpinen-7-al along with the fitted (solid line) Power and Michaelis-Menten models.
Archana Gawde (834438)   +4 more
core   +1 more source

Seasonal Variation of Essential Oils Composition in a Genetically Diverse Population of Lippia alba and Its Influence on Antibacterial Activity

open access: yesChemistry &Biodiversity, Volume 23, Issue 10, October 2026.
The essential oils profile, antibacterial activity and leaf nutrients contents of a Lippia alba genetically diverse population are examined regarding seasonal harvesting. ABSTRACT Lippia alba is an aromatic plant whose essential oils (EOs) have been characterized as promising antimicrobial agents. It has been established that L.
Marina Erê Almeida Hummel Pimenta Santos   +6 more
wiley   +1 more source

Seasonal and Regional Variation of the Chemical Composition and Antimicrobial Activity of Essential Oils From Piper marginatum Jacq.

open access: yesChemistry &Biodiversity, Volume 23, Issue 10, October 2026.
Evaluating Piper marginatum essential oils across three Brazilian biomes reveals significant chemical and antimicrobial variations driven by seasonal and regional factors. Sixty compounds are identified, including a novel (Z)‐phenylpropanoid reported for the first time. Multivariate analysis correlates environmental stressors with specialized metabolic
Rebeca Gabriel de Camargo   +7 more
wiley   +1 more source

A calorimetric study of β-sultams and β-lactams [PDF]

open access: yes
The hydrolytic degradation of a series of β-sultams and β-lactams was investigated using isothermal microcalorimetry (IMC), to determine kinetic and enthalpic data.
Naz, Summia
core   +3 more sources

Serum monoterpene levels, glucose homeostasis, lipid profiles, and metabolic syndrome in adults: NHANES, 2013–2014

open access: yesEmerging Contaminants
Monoterpenes are organic compounds which have been studied for their medicinal benefits. However, the association between monoterpene exposure and metabolic parameters in humans is unknown.
Wei-Jie Wang   +3 more
doaj   +1 more source

Polarized raman optical activity of β-pinene: electric quadrupole contributions

open access: yes, 1986
A comparison of the polarized and depolarized Raman optical activity spectra of β-pinene, obtained with a new optical multichannel instrument, provides evidence for large electric-dipole-electric-quadrupole contributions.
Barron, L.D.   +3 more
core   +1 more source

Clinopodium nepeta Essential Oil and Its Major Constituents Pulegone and Menthone: Composition and Activity Against Verticillium dahliae, Phytophthora infestans, and Macrophomina phaseolina

open access: yesChemistry &Biodiversity, Volume 23, Issue 10, October 2026.
Chemical fractionation of Clinopodium nepeta essential oil reveals pulegone and menthone as markedly more potent antifungal isolates than the whole oil, with activity varying among pathogens. Pulegone exhibits superior efficacy against Verticillium dahliae and Phytophthora infestans, whereas menthone shows enhanced activity against Macrophomina ...
Mohamed Taibi   +11 more
wiley   +1 more source

Traditional Uses, Phytochemistry, and Multi‐Target Pharmacological Activities of Senna alexandrina

open access: yesChemistry &Biodiversity, Volume 23, Issue 10, October 2026.
Senna alexandrina is a medicinally important plant with documented use across Traditional Chinese, Islamic, Ayurvedic, and Unani medicine systems. Phytochemical investigations have yielded 219 characterized compounds, predominantly anthraquinones, flavonoids, and polysaccharides, distributed across leaves, pods, and aerial parts.
Diana Afrina Rella   +2 more
wiley   +1 more source

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