CN
Search Within
147524
应用筛选条件
关键词:'147524'
显示 1-30 共 40 条结果 关于 "147524" 范围 论文
Salim Al-Saidi et al.
Chemistry & biodiversity, 9(3), 615-624 (2012-03-17)
The essential oil compositions of four botanically certified and commercially available samples of Omani lubans (oleo-gum resins of Boswellia sacra Flueck.), locally known as Hoojri, Najdi, Shathari, and Shaabi in Jibali Arabic, obtained from plants growing in four different geographic
Lukas Schmidt et al.
Analytica chimica acta, 793, 26-36 (2013-08-21)
A gas chromatographic-positive chemical ionisation-tandem mass spectrometric (GC-PCI-MS/MS) method for the simultaneous determination of 10 oxidative metabolites of the monoterpenoid hydrocarbons α-pinene, (R)-limonene, and Δ(3)-carene ((+)-3-carene) in human urine was developed and tested for the monoterpene biomonitoring of the general
Newly characterized products and composition of secondary aerosols from the reaction of ?-pinene with ozone.
Jang M and Kamens R M
Atmospheric Environment, 33(3), 459-474 (1999)
Bartłomiej Witkowski et al.
Journal of mass spectrometry : JMS, 48(1), 79-88 (2013-01-11)
A series of α-acyloxyhydroperoxy aldehydes was analyzed with direct infusion electrospray ionization tandem mass spectrometry (ESI/MS(n)) as well as liquid chromatography coupled with the mass spectrometry (LC/MS). Standards of α-acyloxyhydroperoxy aldehydes were prepared by liquid-phase ozonolysis of cyclohexene in the
Biwu Chu et al.
Environmental pollution (Barking, Essex : 1987), 193, 88-93 (2014-07-12)
α-Pinene/NOx and α-pinene/HONO photooxidation experiments at varying humidity were conducted in smog chambers in the presence or absence of FeSO4 seed particles. FeSO4 seed particles decrease SOA mass as long as water was present on the seed particle surface, but
Xavier Martini et al.
Journal of chemical ecology, 41(7), 613-621 (2015-06-14)
The redbay ambrosia beetle, Xyleborus glabratus, is an important pest of redbay (Persea borbonia) and swamp bay (P. palustris) trees in forests of the southeastern USA. It is also a threat to commercially grown avocado. The beetle is attracted to
Aerosol formation from the reaction of ?-pinene and ozone using a gas-phase kinetics-aerosol partitioning model.
Kamens R, et al.
Environmental Science & Technology, 33(9), 1430-1438 (1999)
Hwajin Kim et al.
The journal of physical chemistry. A, 116(24), 6059-6067 (2012-04-19)
The refractive index is an important property affecting aerosol optical properties, which in turn help determine the aerosol direct effect and satellite retrieval results. Here, we investigate the real refractive indices (m(r)) of secondary organic aerosols (SOA) generated from the
Structure-activity relations in Cs-doped heteropolyacid catalysts for biodiesel production.
Narasimharao K, et al.
J. Catal., 248(2), 226-234 (2007)
Kaytlin M Henry et al.
The journal of physical chemistry. A, 116(24), 5932-5940 (2012-03-24)
This study addresses photochemical aging of secondary organic aerosol (SOA) produced from α-pinene ozonolysis. The SOA is aged via hydroxyl radical (OH) reactions with first-generation vapors and UV photolysis. OH radicals are created through tetramethylethylene ozonolysis, HOOH photolysis, or HONO
Mariusz Marć et al.
Analytical and bioanalytical chemistry, 407(22), 6879-6884 (2015-06-28)
The paper presents the construction and metrological characteristics of the home-made in situ passive flux sampler, an analytical tool representing small-scale emission chambers working in situ and passively sampling analytes from the gaseous phase. The sorption element was a cylindrical
Hatice Büşra Konuk et al.
Folia microbiologica, 65(4), 775-783 (2020-03-21)
Terpenoids, one of the major components of essential oils, are known to exert potent antifungal activity against yeast Saccharomyces cerevisiae. They have been the subject of a considerable number of investigations that uncovered extensive pharmacological properties, including antifungal and antibacterial
Niels J Nieuwenhuizen et al.
Plant physiology, 161(2), 787-804 (2012-12-21)
Terpenes are specialized plant metabolites that act as attractants to pollinators and as defensive compounds against pathogens and herbivores, but they also play an important role in determining the quality of horticultural food products. We show that the genome of
Tadaaki Satou et al.
Phytotherapy research : PTR, 27(2), 306-311 (2012-05-15)
Essential oils are composed of multiple components. It is thought that the effect of essential oils is due to specific component ratios, which may differ from the original ratio when the essential oil is absorbed. However, very little detailed research
Benoit Berlioz et al.
Journal of agricultural and food chemistry, 54(26), 10092-10101 (2006-12-21)
Headspace solid-phase microextraction (HS-SPME) -gas chromatography using flame ionization detection and multivariate analysis were applied to the study of the specificity of protected designation of origin (PDO) virgin olive oils produced in a southern French region (Alpes-Maritimes) based on their
Jeremy D Allison et al.
Environmental entomology, 41(6), 1587-1596 (2013-01-17)
In recent years, several attractant pheromones have been identified for cerambycid beetles, including 2-(undecyloxy)-ethanol (hereafter monochamol) for Monochamus galloprovincialis (Olivier), M. alternatus Hope, and M. scutellatus (Say). This study screened eight known cerambycid pheromones or their analogues (including monochamol) as
Mansour Znati et al.
Natural product communications, 7(7), 947-950 (2012-08-23)
The present work describes the chemical composition and evaluates the antimicrobial and the anti-acetylcholinesterase properties of the flower oil from the Tunisian Ferula lutea obtained by hydrodistillation and analyzed by combination of GC/FID and GC/MS. The chemical composition of the
Grażyna Bortnowska
Food chemistry, 135(3), 2021-2028 (2012-09-08)
The aim of the present study was to assess the influence of pH (3, 7 and 9) as well as ionic strength of NaCl (0mmol/l, 100mmol/l, 200mmol/l and 400mmol/l) on the retention and release characteristics of diacetyl and (-)-α-pinene in
Ana Cristina Rivas da Silva et al.
Molecules (Basel, Switzerland), 17(6), 6305-6316 (2012-05-29)
The antimicrobial activities of the isomers and enantiomers of pinene were evaluated against bacterial and fungal cells. The agar diffusion test showed that only the positive enantiomers of the α- and β-isomers of pinene were active. The minimal inhibitory concentration
Nataraj Jagannath et al.
Natural product communications, 7(7), 943-946 (2012-08-23)
The essential oil was extracted from the seeds of Heracleum rigens by hydrodistillation and a total of twenty compounds accounting for 98.5% of the total oil composition were identified. Physicochemical properties and chemical composition of the oil was determined by
Li Qi et al.
Journal of the Air & Waste Management Association (1995), 62(12), 1359-1369 (2013-02-01)
This work investigates the oxidative aging of preformed secondary organic aerosol (SOA) derived from alpha-pinene ozonolysis (-100 ppb(v) hydrocarbon [HC(x)] with excess of O3) within the University of California-Riverside Center for Environmental Research and Technology environmental chamber that occurs after
Gholamreza Kavoosi et al.
Journal of food science, 78(2), T356-T361 (2013-01-17)
Carum copticum and Ferula assafoetida have several medicinal properties including antispasmodic, carminative, sedative, analgesic, and antiseptic. Reactive oxygen species (ROS), reactive nitrogen species (RNS), hydrogen peroxide (H(2) O(2) ), and thiobarbituric acid reactive substances (TBARS) scavenging activities of Carum and
Song Guo et al.
Environmental science & technology, 46(18), 9846-9853 (2012-04-11)
Ambient aerosol samples were collected at an urban site and an upwind rural site of Beijing during the CAREBEIJING-2008 (Campaigns of Air quality REsearch in BEIJING and surrounding region) summer field campaign. Contributions of primary particles and secondary organic aerosols
Claudia Cano-Ramírez et al.
Journal of chemical ecology, 38(5), 512-524 (2012-05-01)
The bark beetle Dendroctonus rhizophagus is endemic to northwestern Mexico where it kills immature pines < 3 m tall. We report the first investigation of the chemical ecology of this pest of forest regeneration. We used GC-EAD to assess olfactory sensitivity of
Márcia N S de la Cruz et al.
Natural product communications, 8(1), 69-74 (2013-03-12)
The defensive secretion of the frontal gland from termite soldiers is a mixture of monoterpenes, sesquiterpenes and diterpenes, the latter being the most representative. Analyses of the dichloromethane extract from soldiers of the Brazilian termite, Nasutitermes macrocephalus (Silvestri, 1903) (Isoptera
Simon A Zebelo et al.
Plant science : an international journal of experimental plant biology, 196, 93-100 (2012-09-29)
Tomato plants respond to herbivory by emitting volatile organic compounds (VOCs), which are released into the surrounding atmosphere. We analyzed the tomato herbivore-induced VOCs and tested the ability of tomato receiver plants to detect tomato donor volatiles by analyzing early
Aleksandra Zielińska et al.
Pharmaceutical development and technology, 25(7), 832-844 (2020-03-25)
Glycerol monostearate solid lipid nanoparticles (SLN) were produced by hot high-pressure homogenization technique to load alpha-pinene, citral, geraniol or limonene. SLN were composed of 1 wt.% monoterpene, 4 wt.% of Imwitor® 900K as a solid lipid and 2.5 wt.% of Poloxamer188 as a
Jose Ruiz-Jimenez et al.
Journal of chromatography. A, 1616, 460825-460825 (2020-01-12)
Several calibration approaches were evaluated for the quantitation of volatile organic compounds in air using miniaturized exhaustive and non-exhaustive sampling techniques, such as in-tube extraction (ITEX) and solid phase microextraction (SPME) Arrow. Eleven compounds, 2-ethyl-hexanol, hexanal, nonanal, toluene, ethyl-benzene, methyl
Kaytlin M Henry et al.
Environmental science & technology, 46(22), 12347-12354 (2012-10-24)
Secondary organic aerosol formation from volatile precursors can be thought of as a succession of generations of reaction products. Here, we constrain first-generation SOA formation from the α-pinene + OH reaction and also study SOA formation from α-pinene ozonolysis carried
Zhiqian Song et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 37(10), 1431-1433 (2012-08-07)
To establish method for determining the contents of alpha-pinene and octyl acetate in Boswellia serrata, in order to provide preference for making quality standards for B. serrata and processed B. serrata. Application of orthogonal design was employed to optimize the
1/2