نتایج جستجو برای: headspace

تعداد نتایج: 2540  

2015
Kyle C. Peet Janelle R. Thompson

We report draft genome sequences of Bacillus subterraneus MITOT1 and Bacillus cereus MIT0214 isolated through enrichment of samples from geologic sequestration sites in pressurized bioreactors containing a supercritical (sc) CO2 headspace. Their genome sequences expand the phylogenetic range of sequenced bacilli and allow characterization of molecular mechanisms of scCO2 tolerance.

Journal: :Applied and environmental microbiology 2004
W C Lin M V Coppi D R Lovley

Geobacter sulfurreducens, previously classified as a strict anaerobe, tolerated exposure to atmospheric oxygen for at least 24 h and grew with oxygen as the sole electron acceptor at concentrations of 10% or less in the headspace. These results help explain how Geobacter species may survive in oxic subsurface environments, being poised to rapidly take advantage of the development of anoxic cond...

2018
Anne Küntzel Peter Oertel Sina Fischer Andreas Bergmann Phillip Trefz Jochen Schubert Wolfram Miekisch Petra Reinhold Heike Köhler

BACKGROUND Species of Mycobacteriaceae cause serious zoonotic diseases in mammals, for example tuberculosis in humans, dogs, parrots, and elephants (caused by Mycobacterium tuberculosis) and in ruminants and humans (caused by M. bovis and M. caprae). Pulmonary diseases, lymphadenitis, skin diseases, and disseminated diseases can be caused by non-tuberculous mycobacteria (NTM). Diagnosis and dif...

Journal: :Food Science and Technology International, Tokyo 1997

2013
Huda al Kateb Ben de Lacy Costello

Solid phase micro-extraction (SPME) coupled with Gas Chromatography Mass Spectrometry (GC-MS) was used to extract and analyse the volatiles in the headspace above the plasmodial and sporulating stages of the slime mould Physarum Polycephalum. In total 115 compounds were identified from across a broad range of chemical classes. Although more (87) volatile organic compounds (VOCs) were identified...

Journal: :Analytical and bioanalytical chemistry 2010
Catherine Tomicic Michèle Berode

Glycol ethers still continue to be a workplace hazard due to their important use on an industrial scale. Currently, chronic occupational exposures to low levels of xenobiotics become increasingly relevant. Thus, sensitive analytical methods for detecting biomarkers of exposure are of interest in the field of occupational exposure assessment. 1-Methoxy-2-propanol (1M2P) is one of the dominant gl...

2017
Lingshuang Cai Jacek A. Koziel Yin-Cheung Lo Xiuyan Yan Brian J. Kerr

Odor and VOCs emissions associated with swine production facilities is a major concern for the swine industry. Swine manure is one of the major sources of odor from swine operations. Odor control approaches include ration manipulation, improved manure treatment processes, capture and treatment of odorous gases, and improved dispersion. This study was conducted to investigate the effects of low ...

Journal: :Environmental Engineering Research 2022

Estimating the liquid level in an anaerobic digester can be disturbed by its closedness, bubbles and scum formation, inhomogeneity of digestate. In our previous study, a soft-sensor approach using seven pressure meters has been proposed as alternative for real-time estimation. Here, machine learning techniques were used to improve estimation accuracy optimize number sensors required this approa...

Journal: :New Phytologist 2021

The factors that vary the aroma of Tuber magnatum fruiting bodies are poorly understood. study determined headspace composition, sensory profiles, maturity and bacterial communities from T. originating Italy, Croatia, Hungary, Serbia, tested if truffle is dependent on provenance body volatiles explained by and/or communities. Headspace volatile profiles were using gas chromatography–mass spectr...

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