Results 21 to 30 of about 25,450 (210)

Chemical Composition of Needle, Cone, and Branch Oils From Vietnamese

open access: yesNatural Product Communications, 2019
Conifers are well represented in Vietnam where a new pine species has been recently discovered in Son La province: Pinus cernua , synonym P. armandii ssp. xuannhaensis .
Tran Hui Thai   +5 more
doaj   +1 more source

Development of a portable leaf photosynthesis and volatile organic compounds emission system. [PDF]

open access: yes, 2020
Understanding how plant carbon metabolism responds to environmental variables such as light is central to understanding ecosystem carbon cycling and the production of food, biofuels, and biomaterials. Here, we couple a portable leaf photosynthesis system
de Oliveira Piva, Luani Rosa   +4 more
core   +3 more sources

The formation, properties and impact of secondary organic aerosol: current and emerging issues [PDF]

open access: yes, 2009
Secondary organic aerosol (SOA) accounts for a significant fraction of ambient tropospheric aerosol and a detailed knowledge of the formation, properties and transformation of SOA is therefore required to evaluate its impact on atmospheric processes ...
Baltensperger, U.   +26 more
core   +7 more sources

Composition and Chemical Variability of Root Bark oil from Ivoirian

open access: yesNatural Product Communications, 2018
The chemical composition of root bark oil of Cleistopholis patens (Benth.) Engl. & Diels from Côte d'Ivoire was determined by GC (in combination with retention indices), GC-MS and 13 C NMR.
Zana A. Ouattara   +8 more
doaj   +1 more source

An Absorption and Plasma Kinetics Study of Monoterpenes Present in Mastiha Oil in Humans

open access: yesFoods, 2020
Monoterpenes are bioactive compounds, however studies on their metabolic fate in humans are scarce. The present work aimed to identify and quantify the bioactive monoterpenes myrcene, α- and β-pinene of the Mediterranean product Mastiha Oil, in human ...
Efstathia Papada   +4 more
doaj   +1 more source

Boreal forest fire emissions in fresh Canadian smoke plumes: C_1-C_(10) volatile organic compounds (VOCs), CO_2, CO, NO_2, NO, HCN and CH_3CN [PDF]

open access: yes, 2011
Boreal regions comprise about 17% of the global land area, and they both affect and are influenced by climate change. To better understand boreal forest fire emissions and plume evolution, 947 whole air samples were collected aboard the NASA DC-8 ...
Akagi, S. K.   +17 more
core   +4 more sources

Nopol synthesis from β-pinene and turpentine oil over Sn-MCM-41

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2006
Nopol was obtained by the Prins condensation of β-pinene and paraformaldehyde over Sn-MCM-41. The catalyst was synthesized by chemical vapor deposition using a Sn salt over MCM-41.
Edwin Alexis Alarcón Durango   +2 more
doaj   +1 more source

Survey of foliar monoterpenes across the range of jack pine reveal three widespread chemotypes: implications to host expansion of invasive mountain pine beetle

open access: yesFrontiers in Plant Science, 2015
The secondary compounds of pines (Pinus) can strongly affect the physiology, ecology and behaviors of the bark beetles (Coleoptera: Curculionidae, Scolytinae) that feed on sub-cortical tissues of hosts.
Spencer eTaft   +4 more
doaj   +1 more source

Human adenocarcinoma cell line sensitivity to essential oil phytocomplexes from pistacia species: A multivariate approach [PDF]

open access: yes, 2017
Principal component analysis (PCA) multivariate analysis was applied to study the cytotoxic activity of essential oils from various species of the Pistacia genus on human tumor cell lines.
Buriani, Alessandro   +7 more
core   +1 more source

Essential Oil Constituents of and grown in Vietnam

open access: yesNatural Product Communications, 2015
The chemical composition of the essential oils obtained from the hydrodistillation of different parts of Etlingera yunnanensis (T.L. Wu &S.J. Chen) R.M. Sm. and Hornstedtia sanhan M.F. Newman (Zingiberaceae) grown in Vietnam are reported.
Dao T. M. Chau   +5 more
doaj   +1 more source

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