Sentences with phrase «of aldehydes»

The precise mechanism is the higher percentage of aldehydes that form during combustion.

activates aldehyde oxidase enzyme, needed for conversion of aldehydes into a water - soluble acidic form (detox pathway end for vinyl chloride, formaldehyde, chemicals from industrial and auto exhaust, etc..)

Some of these aldehydes are converted to glucose, but a large amount of excess citrate is formed in the process, stimulating «junk chemicals» that result in free fatty acids (FFAs), VLDL and triglycerides.

A snow pack source of aldehydes and acetone in West Antarctica between 76 and 90 degrees S. EGU General Assembly 2009, held 19 - 24 April, 2009 in Vienna, Austria, p. 12645.

Thus, laboratory experiments can now be devised with various ice components to attempt production of the aldehydes observed with the GBT.

(2005); Organocatalytic asymmetric a-bromination of aldehydes and ketones.

They are based on novel sensor arrays that detect and differentiate among a diverse range of aldehydes and ketones, as reported in the journal Angewandte Chemie.

«Name that scotch: Colorimetric recognition of aldehydes and ketones.»

Using a molecular dynamics code called NAMD, the team ran simulations of the wild lignin and the genetically modified lignin in a water cube, modeling the presence of the aldehydes by altering the partial charges of the oxygen and hydrogen atoms on the modified lignin's allylic site.

Not exact matches

Emissions of volatile aldehydes from heated cooking oils.

To get around that problem, a group at the Department of Energy's Ames Laboratory in Iowa, led by Vitalij Pecharsky — a materials scientist with a joint appointment at Iowa State University, Ames — started with powdery organic compounds, such as phosphonium salts, solid aldehydes or ketones, and anhydrous potassium carbonate.

In the 3 March issue of Science, researchers report a way to clean up a commonplace family of chemical reactions — turning alcohols into aldehydes, ketones, and carboxylic acids, starting materials for everything from pharmaceuticals to fragrances.

They found that cyclophosphamide kills all of the donor's transplanted bone marrow cells except for stem cells containing high levels of an enzyme called aldehyde dehydrogenase (ALDH).

Thermolysis of the applied tosyl hydrazones (easily prepared by condensation of the corresponding aldehydes with tosyl hydrazine) leads to in situ formation of the corresponding diazo compounds.

Steve: This is really interesting material, I think, because perhaps many of the listeners are familiar with older research, for example, that found that the aldehyde dehydrogenase enzyme is not available for certain people, and that for them, drinking in excess is really uncomfortable, so they tend not to, but that's more of a direct genetic biochemical kind of a system related to the alcohol molecule ultimately as it gets metabolized.

For varying periods of time, both were exposed to ordinary fumes from paint, perfume, gasoline and an aldehyde substance of the sort often used to manufacture perfumes or drugs.

Even at very low concentrations, they report in today's Nature, the aldehydes inhibited hatching of copepod eggs.

Instead of a hydrophilic alcohol group (an oxygen - hydrogen molecule bound to a hydrogen - saturated carbon atom), the final lignin polymer contained a hydrophobic aldehyde group (a carbon atom double - bonded to an oxygen atom).

Most of the 140 types of molecules found in space have been discovered here, including some common on Earth: acetic acid (vinegar), ethylene glycol (the chief ingredient in antifreeze), and a basic sugar known as glycol aldehyde.

It's a vicious circle but one that has enabled a multinational team of researchers to identify the odours as organic hydrocarbons in the form of three aldehydes, heptanal, octanal and nonanal, whose discovery could bring relief to a disease that claimed nearly half a million lives in 2016.

«Now that we have identified and quantified the aldehydes associated with malaria infection, we understand more of the parasite's infection route.»

That study found that benomyl inhibited an enzyme called aldehyde dehydrogenase (ALDH), which converts aldehydes highly toxic to dopamine cells into less toxic agents, and therefore contributed to the development of Parkinson's.

«This report provides evidence for the relevance of ALDH inhibition in Parkinson's disease pathogenesis, identifies pesticides that should be avoided to reduce the risk of developing Parkinson's disease and suggests that therapies modulating ALDH enzyme activity or otherwise eliminating toxic aldehydes should be developed and tested to potentially reduce Parkinson's disease occurrence or slow its progression particularly for patients exposed to pesticides,» the study states.

The molecule — a so - called aldehyde — carries the telltale metallic stench of blood and is found in pigs» blood and perhaps in all mammalian blood, Laska says.

The oligonucleotides, suspended in 1.5 M betaine in 3X SSC buffer at a concentration of 500 ng / µl, were covalently linked in quadruplicate to aldehyde - coated glass microscope slides at a spacing of 250 microns.

Total crosslinks, total protein carbonyls, total AGEs, total amyloid, aggregate, adducts, mtDNA oxidative lesions, total lipofuscin, total oxidized redox disulfides, total lipid peroxidation chain propagation by aldehydes and propagators (MDA Malondialdehyde / TBARS, 4 - HNE, Acrolein), total giant senescent mitochondria and a crap load of others.

Molecules with the aldehyde group are particularly interesting since several biologically significant molecules, including a family of sugar molecules, are aldehydes.

In the GBT experiment, three aldehyde molecules were observed and appear to be related by simple hydrogen addition reactions, which probably occur on the surface of interstellar grains.

Oxidizing the end carbon atom of a terminal alkene to form an aldehyde, a process called anti-Markovnikov alkene oxidation, is difficult because the reaction is energetically unfavorable.

This allows for the identification, evaluation, and isolation of stem and progenitor cells based on aldehyde dehydrogenase (ALDH), expression and not their cell surface phenotype.

A scanning electron micrograph (SEM) of DT - 40 cells adhered to glass and fixed with aldehydes.

In the new study, postdoc Stephan C. Hammer, now at the University of Stuttgart, found that the enzyme actually made 45 % aldehyde directly, without going through an epoxide intermediate.

Markovnikov oxidation of terminal alkenes (left) to form ketones (center) is energetically favored, whereas anti-Markovnikov reactions leading to aldehydes are more difficult.

It also may improve alcohol tolerance and reduce the negative effects of alcohol by inducing aldehyde dehydroenases.

SPI (soy protein isolate — the ingredient you most often find in veggie burgers, energy bars and other modern products — contains some 38 petroleum compounds including, but not limited to: butyl, methyl and ethyl esters of fatty acids, phenols, diphenyls and phenl esters, abietic acid derivatives, diehydroabietinal, hexanal and 2 - butyl -2-octenal aldehydes; dehydroabietic acid methyl ester; dehydroabietene and abietatriene.

Adding insult to injury: In women, the enzyme aldehyde dehydrogenase (ALDH)-- which breaks down alcohol in the stomach — can work less efficiently than in men, says Scott Walters, PhD, associate professor at the University of Texas School of Public Health.

And basically, any type of a binder, like clays or your Fulvic acids — these binders, you can kind of soak up that Aldehyde, which is cool, because if you are getting drunk on your own Candida, that's not the root cause of deficiency of — of clay or charcoal.

In this post, I will address the question of whether we should avoid kombucha and other fermented foods because their content of chemicals known as aldehydes makes them toxic.

When energy metabolism becomes dysfunctional, when we have deficiencies in the nutrients needed to support these pathways, or when we have genetic predispositions to tolerate certain dietary factors poorly, the aldehydes may accumulate instead of being quickly metabolized to other safer molecules.

Aldehydes can be converted into acetic acid a harmless compound in the presence of nutrients such as glutamine, selenium, niacin folic acid, B6, B12, iron and molybdenum.

Research out of the University of Cambridge has verified the link between toxic chemicals called aldehydes, the destruction of DNA repair mechanisms and a higher risk of cancer due to their effects at the cellular level.

The tragic reality, of course, is that 95 percent of the food that most Americans eat is processed — and processed food is where all this trans fat lies — and the cyclic aldehydes, and the acrylamide, and the genetically engineered ingredients, and the pesticides... So, if you want to protect your health, particularly your heart, brain, and gut, you need to avoid as many processed foods (including most restaurant food) as much as possible, and start cooking at home, using fresh, whole, unadulterated ingredients.

In animals, even low levels of cyclic aldehydes oxidize LDL cholesterol and cause high levels of inflammation associated with heart disease.

The problem of trans fats and cyclic aldehydes can largely be addressed by reverting to using saturated fats like butter, coconut oil and lard — the latter two of which are very stable and excellent for high temperature cooking.

The interesting thing about the GI index is that some foods that are relatively high are fine for diabetics whereas one of the lowest glycemic food... fructose in concentrated form is not helpful due to the metabolic products formed by the liver... uric acid, inflammatory aldehydes, lipids and some glycogen.

This will help block the conversion of alcohol into aldehyde, the most hangover - causing metabolite that also causes very fast aging, wrinkles, etc..

Fructose is metabolized almost exclusively in the liver to a variety of substances most of which are not good for us (e.g. uric acid, fats such as triglycerides, inflammatory aldehydes).

activates alcohol dehydrogenase, the enzyme needed for transformation of hydroxylated toxins from their alcohol form to an intermediate (often more toxic) aldehyde form

Hydroperoxides themselves have no flavor or odor but break down rapidly to form aldehydes, many of which have a strong, disagreeable flavor and odor.

Fermenting gets rid of the phytates, however cooking is best in our experience, because ferments have a number of problems including but not limited to yin qualities of the food and toxic Aldehydes.