Sentences with phrase «of organic compounds from»

Higher temperatures can also increase the emissions of organic compounds from trees, which can then react in the atmosphere to form ozone and particulate matter.

Not exact matches

All of these scientific hypotheses boil down to first there was an planetary mass covered with water and providing the correct conditions for chemical reactions to create a simple organic compound from which life was formed.

Soy oil is generally separated from flaked soybeans — leaving defatted meal that's ground into flour — using a chemical called hexane, one of the volatile organic compounds that constitutes natural gas, crude oil and gasoline.

From a dietary perspective, rapeseed oil has a significant flaw: undesirable amounts of erucic acid and glucosinolates (organic compounds).

Globally, over 220 million people suffer from food allergies and most countries report an increase in incidence.26 It is predicted that by 2050 the number of patients affected by allergic diseases in Australia will increase by 70 % to 7.7 million.27 By 2021, the markets for naturally healthy (US$ 291 billion), food intolerance (US$ 42 billion) and organic products (US$ 45 billion) are expected to have grown at up to 4.5 % compound annual growth rate (CAGR).28

Inputs into an organic production system are generally prohibited if synthetically compounded — defined by the ACO Standard as a process which chemically changes a material derived from plant, animal or mineral resources, with the exception of microbiological processes.

PrebioSure is based on several years of research and development of a proprietary enzymatic extraction of biologically active compounds from non-GMO and organic food grade wheat germ, which is also gluten - free, gliadin - free, and fructon - free.

In a new paper she studies dimethyl sulfide and chloromethane, compounds that result from the breakdown of organic material, as promising targets.

To try to develop a more sensitive probe for isolating individual peptides — short strands of amino acids — from a pool of similar molecules, a team led by chemist Clark Still of Columbia University 4 years ago synthesized small organic compounds that selectively fish out peptides dissolved in chloroform.

Though all my work required the making of new molecules, individual projects ranged from designing organic compounds that control the reactivity of metal ions to generating conductive polymers for lithium - ion batteries.

From a human health and environmental perspective, it is therefore important to reduce the indoor and outdoor levels of these volatile organic compounds.

«The deposition of compounds such as sugars and organic acids from living roots can increase the activity of bacteria and fungi, and it's this increase in activity that accelerates the decomposition of carbon in the soil, leading to higher CO2 emissions,» Sulman said.

Evidently, earthworms change the forest soils from a fungal to a bacterial - dominated system, which speeds up the conversion of leaf detritus to mineral compounds and thereby potentially robs plants of organic nutrients.

He was an organic chemistry professor at the Federal Institute of Technology in Zurich, Switzerland, from 1942 to 1976, where he carried out research on alkaloids, antibiotics, enzymes, and other organic compounds.

In a new study published in the Proceedings of the National Academy of Sciences (PNAS), researchers from Innsbruck, Austria, present the world's first chemical fingerprint of urban emission sources of volatile organic compounds (VOCs).

Biochemist Lars Thelander at the announcement from the Royal Swedish Academy of Sciences: «Palladium - catalyzed cross-coupling has made it possible to synthesize carbon based molecules, for example, new medicines, agricultural chemicals and organic compounds used in the electronics industry.»

The air we breathe is chock - full of organic compounds, tiny liquid or solid particles that come from hundreds of sources including trees, volcanoes, cars, trucks and wood fires.

The city authorities in Vienna hope this will reduce the emissions of volatile organic compounds from vehicles from 60 to 45 tonnes a day.

Much of this haze is formed from volatile organic compounds, or VOCs, and fine particulate matter from tailpipe emissions.

Cyanobacteria, which still exist in a similar form today, probably started using energy from sunlight to photosynthesize some of the carbon dioxide in the atmosphere into organic compounds.

Attendees at the astrobiology meeting in Arizona showcased an assortment of high - tech devices for next - generation exploration, ranging from microfluidic «life analyzers» and integrated nucleic acid extractors for studying «Martian metagenomics» to exquisitely sensitive, miniaturized organic chemistry labs for spotting tantalizing carbon compounds and minerals at microscopic scales.

This taste of carbon is intriguing, but it is a far cry from recent feverish speculation that the rover had found definitive evidence for organic compounds on Mars.

As a result, this group succeeded in isolating ORs which respond to three types of volatile organic compounds (2 - pentanone, pyridine, 2 - butanone) respectively in urine samples from lung cancer patients.

«The evidence from observation indicates that complex organic chemistry is much more universal than previously thought,» says Fred Goesmann from the Max Planck Institute for Solar System Research, who led the analysis of organic compounds on the Rosetta mission.

Scientists from the Nencki Institute of Experimental Biology of the Polish Academy of Sciences in Warsaw have recently discovered that the alpha and beta cells communicate with each other, and the central role in this communication is played by cannabinoids — organic compounds that occur in nature also in inflorescences of cannabis.

«Being in the Mix Lab (special labs that have researchers from different disciplines mixed together) at ITbM, I was able to talk to an organic chemist, Masakazu Nambo, who suggested the use of triarylmethane compounds for cell division inhibition in plant cells,» she continues.

They write, «We show that anaerobic microsites are important regulators of soil carbon persistence, shifting microbial metabolism to less efficient anaerobic respiration and selectively protecting otherwise bioavailable, reduced organic compounds such as lipids and waxes from decomposition.

It's a carbonaceous asteroid, meaning it's made of a mixture of rock, organic compounds and water - rich minerals thought to mirror the make - up of the primordial nebula from which our solar system first condensed.

Since 2006, he has worked with NOAA's air sampling system that uses glass flasks to collect atmospheric samples from 44 different sites around the world to track the annual increase of ethane and other so - called volatile organic compounds in the air.

Researchers from UC Davis and the California Institute of Technology conducted a series of experiments in a 24 cubic meter environmental chamber using the volatile organic compound toluene, which is emitted from motor vehicles and is an important SOA precursor.

Emission of volatile organic compounds from petunia flowers is facilitated by an ABC transporter.

Justin Johnson, also a senior scientist at NREL, said the process is similar to MEG, except that it uses organic molecules — compounds made from carbon — instead of semiconductors.

They were looking for a site with a venting process that produces a lot of hydrogen because of the potential it holds for the chemical, or abiotic, creation of organic molecules like methane — possible precursors to the prebiotic compounds from which life on Earth emerged.

Analysis indicates that the rock contains millions of organic compounds, including amino acids that could not have come from terrestrial contamination.

In the new study, led by Purdue biochemist Natalia Dudareva, the team looked for genetic changes as the plant developed from its budding stage, which had the lowest levels of volatile organic compounds, to its flower - opening stage, with the highest levels.

The team also reports discovering organic compounds from the mummy that seem to be by - products of protein decay.

Phosphorescence from organic compounds has typically been observed at extremely low temperatures and in the absence of oxygen, which limits their scope for practical applications.

Raindrops eject carbon - based blobs of soil material from wet fields, creating a mist of organic compounds above the soil.

These highly sensitive artificial sense organs can reliably detect gases of all kinds, from toxic carbon monoxide to carcinogenic organic compounds, and can determine their concentrations quantitatively.

«We managed to present the first molecular evidence of a direct and ubiquitous source of ELVOCs arising from the oxidation of monoterpenes and other volatile organic compounds in the gas phase.»

Frost and his colleagues developed a method of producing so - called «quinoid» organic compounds from the naturally occurring sugar d - glucose.

In one, emissions of nitrogen oxides and volatile organic compounds from human activities would continue at current levels through 2050.

In August, the EPA issued rules to limit air pollution by volatile organic compounds from «fracking» which should, as a by - product, also reduce emissions of methane.

Shells are made from crystalline compounds of calcium carbonate interleaved with an organic matrix of proteins and sugars proteins and sugars.

For example, it may be that meteorite impacts of a certain size may not destroy organic compounds or scientists may need to concentrate on rocks excavated from a certain depth.

In a separate study, researchers report that all samples drawn from 45 crocodiles at five sites in and around South Africa's Kruger National Park contained detectable levels of four PFAAs, often in different combinations with other of the 15 fluorinated organic compounds tracked.

Scientists analysing samples from Mars» surface have so far not conclusively detected organic compounds that are indigenous to Mars, which would be indicators of past or present life.

These efforts to produce simple organic compounds from simple reagents heralded the dawn of prebiotic organic chemistry.

Eventually, a stable rocky crust may have developed between Years 0.2 and 0.4 billion (see J. Bret Bennington's discussion of recycled zircons (crystals of zirconium silicate) from the rocks of western Australia in the Hadean Eon and the January 11, 2001 announcement of zircons found north of Perth that appear to be 4.4 billion years old), covered and surrounded by soupy water that was already rich with organic compounds from interstellar space.

Situated 150 light - years from Earth, HD 209458b is a planet that holds traces of water vapor in its atmosphere, and also contains basic organic compounds that, on Earth, foster the development of life.