نتایج جستجو برای: volatile organic compounds vocs

تعداد نتایج: 426167  

Journal: :Journal of bacteriology 2012
Marco Fondi Valerio Orlandini Isabel Maida Elena Perrin Maria Cristiana Papaleo Giovanni Emiliani Donatella de Pascale Ermenegilda Parrilli Maria Luisa Tutino Luigi Michaud Angelina Lo Giudice Renato Fani

Arthrobacter sp. strain TB23 was isolated from the Antarctic sponge Lissodendoryx nobilis. This bacterium is able to produce antimicrobial compounds and volatile organic compounds (VOCs) that inhibit the growth of other Antarctic bacteria and of cystic fibrosis opportunistic pathogens, respectively. Here we report the draft genome sequence of Arthrobacter sp. TB23.

2005
Nancy Fiedler Robert Laumbach Kathie Kelly-McNeil Paul Lioy Zhi-Hua Fan Junfeng Zhang John Ottenweller Pamela Ohman-Strickland Howard Kipen

In our present study we tested the health effects among women of controlled exposures to volatile organic compounds (VOCs), with and without ozone (O3), and psychological stress. Each subject was exposed to the following three conditions at 1-week intervals (within-subject factor): VOCs (26 mg/m3), VOCs + O3 (26 mg/m3 + 40 ppb), and ambient air with a 1-min spike of VOCs (2.5 mg/m3). As a betwe...

Journal: :Acta pharmaceutica 2009
Bhaskar S Dawane Shankaraiah G Konda Baseer M Shaikh Raghunath B Bhosale

A simple and convenient route is described for the synthesis of novel hetero 1,3-diaryl-2-propen-1-ones (chalcones) by using recyclable PEG-400 as an alternative reaction solvent. The reaction is clean with excellent yield, shorter reaction time and reduces the use of volatile organic compounds (VOCs). All the synthesized compounds were evaluated for their antimicrobial activities against sever...

Journal: :Acta chimica Slovenica 2010
Gregor Arh Leo Klasinc Marjan Veber Matevž Pompe

Experimental MS response factors were measured for 36 different saturated and unsaturated volatile organic compounds (VOC) containing carbon, hydrogen and halogen atoms. Chemical structure was encoded using various molecular descriptors. A quantitative structure-property relationship model was established using the multiple linear regression models. The cross-validation ability of the created m...

2017
Savita K. P. Veerapandian Christophe Leys Nathalie De Geyter Rino Morent Jean-François Lamonier

Non thermal plasma (NTP) reactors packed with non-catalytic or catalytic packing material have been widely used for the abatement of volatile organic compounds such as toluene, benzene, etc. Packed bed reactors are single stage reactors where the packing material is placed directly in the plasma discharge region. The presence of packing material can alter the physical (such as discharge charact...

Introduction: In hair salons, workers and customers are exposed to high concentrations of several chemical compounds used during the working environment. Volatile Organic Compounds (VOCs), particulate matter (PM10), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), and formaldehyde are the major chemicals that alter the indoor air quality. This study aimed to assess the indoor...

2006
Chrisitan Kreutz Jürgen Lörgen Boris Graewe Joachim Bargon Mayumi Yoshida Zachary M. Fresco Jean M.J. Frèchet

An array of 50 MHz quartz microbalances (QMBs) coated with a dendronized polymer was used to detect small amounts of volatile organic compounds (VOCs) in the gas phase. The results were compared to those obtained with the commonly used 10 MHz QMBs. The 50 MHz QMBs proved to be a powerful tool for the detection of VOCs in the gas phase; therefore, they represent a promising alternative to the mu...

2012
E. Muzenda

Group contribution methods such as the UNIFAC are of major interest to researchers and engineers involved synthesis, feasibility studies, design and optimization of separation processes as well as other applications of industrial use. Reliable knowledge of the phase equilibrium behavior is crucial for the prediction of the fate of the chemical in the environment and other applications. The obje...

2015
Xiao-Min Liu Huiming Zhang

Plant growth-promoting rhizobacteria (PGPR) are beneficial plant symbionts that have been successfully used in agriculture to increase seedling emergence, plant weight, crop yield, and disease resistance. Some PGPR strains release volatile organic compounds (VOCs) that can directly and/or indirectly mediate increases in plant biomass, disease resistance, and abiotic stress tolerance. This mini-...

Journal: :Science 2006
Ian T Baldwin Rayko Halitschke Anja Paschold Caroline C von Dahl Catherine A Preston

Plants may "eavesdrop" on volatile organic compounds (VOCs) released by herbivore-attacked neighbors to activate defenses before being attacked themselves. Transcriptome and signal cascade analyses of VOC-exposed plants suggest that plants eavesdrop to prime direct and indirect defenses and to hone competitive abilities. Advances in research on VOC biosynthesis and perception have facilitated t...

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