Sentences with phrase «aromatic compounds in»

Additionally, the study shows that some aromatic compounds in tomatoes contribute to the perception of sweetness independently of sugar concentration.

The constituent ingredients were found on a nutritional analysis website; the color and preservative components were from old botany books; and the flavor compounds were found in published, peer - reviewed gas spectroscopy analyses of the volatile aromatic compounds in each fruit.

Ketones are major aromatic compounds in red raspberries, with a structure similar to the one of capsaicin and synephrine, compounds known for aiding weight loss.

There used to not be such a thing as indoors, maybe the cave was indoors, but now we have ability to hide ourselves from the outdoor environment which is good if there's a bad storm, but otherwise we wan na be out there where we're getting tons of negative ions out there when you're talking about being around water or sources of trees, you're gonna get exposed to these phytoncides, these aromatic compounds in nature.

There are two in vitro studies that suggest vanillin, one of the many aromatic compounds in vanilla, may be protective against colorectal and cervical cancer, but no clinical or epidemiological studies have been published to my knowledge.

To determine the candidates with the best switching properties, researchers screened several orthoquinone - containing aromatic compounds in a computational study.

A Japanese study found that an aromatic compound in red raspberries was able to prevent and improve obesity in animal subjects; additional research on the effect is needed, but we know enough to conclude that a handful of fresh raspberries sounds like an excellent summer snack.

Not exact matches

Beer marinades are actually an effective way of reducing levels of polycyclic aromatic hydrocarbons (PAHs), a group of carcinogenic compounds that form on grilled meat when fats and juices interact with an open flame, finds a new study in the Journal of Agricultural and Food Chemistry.

In fact, the E.P.A. says the lake that Martens bobbed around in for about ten minutes while wearing a life jacket contains the following substances: «mercury, polychlorinated biphenyls (PCBs); pesticides; creosotes; heavy metals including lead, cobalt, and mercury; polycyclic aromatic hydrocarbons (PAHs); and volatile organic compounds (VOCs) such as chlorobenzene.&raquIn fact, the E.P.A. says the lake that Martens bobbed around in for about ten minutes while wearing a life jacket contains the following substances: «mercury, polychlorinated biphenyls (PCBs); pesticides; creosotes; heavy metals including lead, cobalt, and mercury; polycyclic aromatic hydrocarbons (PAHs); and volatile organic compounds (VOCs) such as chlorobenzene.&raquin for about ten minutes while wearing a life jacket contains the following substances: «mercury, polychlorinated biphenyls (PCBs); pesticides; creosotes; heavy metals including lead, cobalt, and mercury; polycyclic aromatic hydrocarbons (PAHs); and volatile organic compounds (VOCs) such as chlorobenzene.»

«We don't know for sure if their synthesis is shared: maybe the microorganism produces the aromatic compounds and the ants store them in their glands.

Researchers working on the Ribeirão Preto campus of the University of São Paulo (USP) in Brazil have discovered that a bacterium found in the microbiota associated with leafcutter ant species Atta sexdens rubropilosa produces the so - called «trail pheromones,» i.e, the aromatic chemical compounds used by the ants to lay a trail to their nest.

Among the greatest concerns is that compounds in oil called polycyclic aromatic hydrocarbons (PAHs) could have long - term sublethal effects on marine organisms that were at the peak of their spawning season when the spill began.

After analyzing thousands of compounds in the samples, the researchers determined that the presence of small metabolites called aromatics, which vary depending on a person's diet, also contributed to variations in bacterial growth.

Mathur, who is with Johann Haltermann Ltd., in Houston, said those include PAHs — polycyclic aromatic compounds that exist naturally in the crude oil that becomes gasoline have been largely responsible for particulate matter emissions.

The parent compounds involved in this research are polycyclic aromatic hydrocarbons, or PAHs, formed naturally as the result of almost any type of combustion, from a wood stove to an automobile engine, cigarette or a coal - fired power plant.

«As a result of screening about 200 compounds, we found that (3 - furyl) diphenylmethane (chem7), which is a triarylmethane that contains 2 phenyl groups and a furyl (a 5 - membered aromatic ring containing 4 carbons and an oxygen atom in the ring) group, had strong inhibitory activity on plant cell division,» says Ueda.

Phenylacetaldehyde is an aromatic compound sometimes added to cigarettes to improve their flavour, and is dominant in both coffee and potato, so network theory suggests the two should go well together.

The toxic compounds in oil vary, but the most worrisome are polycyclic aromatic hydrocarbons (PAHs), such as napthalenes, benzene, toluene and xylenes.

Polycyclic aromatic hydrocarbons (PAHs) are a class of carcinogenic organic compounds that are ubiquitous in the environment.

As crude oil burns it releases many toxic chemicals, including lead, carbon monoxide, polycyclic aromatic hydrocarbons and volatile organic compounds, says Bin Jalaludin at the University of New South Wales in Australia.

However, the types of organic compounds found in plant matter — dominated by aromatic hydrocarbons — underwent some chemical changes, but remained relatively resistant to impact pressures.

The research group, led by molecular biologist Eran Pichersky of the University of Michigan, Ann Arbor, studied two model organisms that are easily manipulated in the laboratory: basil, which produces large amounts of eugenol, and the petunia flower, whose scent is caused by three aromatic compounds including isoeugenol.

The introduction of an aromatic in the mutant B9S54W also resulted in increased potency and breadth (Fig. 3) despite the lack of significant sequence homology between VRC01 - like antibodies and B9, A14 and B21 (compounded by the lack of a light chain which contributes to the VRC01 - Env interface).

Starting from compound 16, several derivatives, in which the D - Phe (4 - F) 1 moiety was replaced by various aromatic amino acids, while maintaining the same configuration of [D - Phe (4 - F) 1, L - Arg2] fragment, have been synthesized.

Furthermore, in order to improve both basic and aromatic characters of such derivatives, two analogues, in which the Arg2 of FC131 was replaced by an L / D - His residue, compounds 30 and 31 were prepared and turned out to be potent CXCR4 antagonists with IC50 values of 0.037 and 0.035 μM, respectively.

The latest study, which featured experiments at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), could help explain the presence of pyrene, which is a chemical compound known as a polycyclic aromatic hydrocarbon, and similar compounds in some meteorites.

The results suggested that the tertiary amine groups bind to D97 on TM2 and E32 in the amino terminus of CXCR4 through hydrogen bonds while aromatic residues Y45, W94, H113 and Y255 establish hydrophobic interactions with the aromatic counterpart of identified compounds.

In one of the latest examples, a team led by Kenichiro Itami of Nagoya University and Djamaladdin G. Musaev of Emory University has used a computational - experimental approach to create a predictive regioselective reaction for C — H imidation of aromatic compounds (Chem.

However, the types of organic compounds found in plant matter — dominated by aromatic hydrocarbons - underwent some chemical changes, but remained relatively resistant to impact pressures.

12:15 — 12:45 Marta Ferraroni (Uni Firenze) Structural studies on Ring - Cleaving Dioxygenases involved in the degradation of aromatic compounds

Certain particle compounds may directly generate ROS in vivo because of their surface chemistry (eg, metals, organic compounds, and semiquinones) or after bioactivation by cytochrome P450 systems (eg, polycyclic aromatic hydrocarbon conversion to quinones).6, 290 a, 290 b A particle surface or anions present on otherwise more inert particles may disrupt iron homeostasis in the lung and thereby also generate ROS via Fenton reactions.291 Other PM constituents may do so indirectly by the upregulation of endogenous cellular sources (eg, nicotinamide adenine dinucleotide phosphate [NADPH]-RRB- oxidase) 292,293 or by perturbing organelle function (eg, mitochondria) by taken - up PM components.261 Particle stimulation of irritant and afferent ANS fibers may also play a role in local and systemic oxidative stress formation.294 Given the rich antioxidant defenses in the lung fluid, secondarily generated oxidization products of endogenous molecules (eg, oxidized phospholipids, proteins) or a reduction in endogenous antioxidants per se may be responsible at least in part for the state of oxidative stress in the lungs (along with instigating the subsequent cellular responses) rather than ROS derived directly from PM and its constituents.

A by - product of enfleurage and solvent extraction, absolutes are highly concentrated aromatic plant compounds that are widely used in the cosmetic and perfume industries as well as in the mental health field because of their uplifting aroma.

For starters, the Prestige spill — which was roughly one - tenth the size of the Deepwater Horizon spill — involved bunker oil, which contains different proportions of carcinogenic compounds (notably polycyclic aromatic hydrocarbons and benzene) than the crude oil spilled in the Gulf, according to Dr. Solomon.

The molecules come from phenolic, or aromatic, compounds, Henderson says, and robust food sources include those that we more often hear are rich in antioxidants: coffee, tea, colorful berries, red wine and dark chocolate.

The research says that concern over cancer causing compounds such as heterocyclic amines (HCAs), and polycyclic aromatic hydrocarbons), would be better directed toward educating consumers on the charring and blackening that occurs when grilling or barbecuing muscle meats, rather than cooking the meat in microwave ovens.

The different therapeutic and aromatic compounds found on garlic are described in a layman - friendly but in - depth manner, as are the tips and advice for growers.

The most abundant phenolic compound present in cloves» essential oil is eugenol, which is not only responsible for the aromatic scent of the flower buds, but it is also the main active ingredient behind their antimicrobial, antifungal, and analgesic properties.

By using certain aromas in conjunction with activities such as reading, massage therapy or meditation, aromatic compounds can actually influence your brain's chemistry.

Titled, «Aromatic - turmerone induces neural stem cell proliferation in vitro and in vivo,» German researchers evaluated the effects of this turmeric - derived compound on neural stem cells (NSCs)-- the subgroup of brain cells capable of continuous self - renewal required for brain repair.

• Craft Beer and More — At Big River Grille & Brewing Works, you get a fresh selection of craft ales and lagers made on site, gorgeous grilled steaks topped with aromatic compound butter, or hazelnut - crusted fried chicken in all its crispy glory.

A known carcinogen derived from burning coal, it is a complex mixture of hundreds of compounds, many of which are polycyclic aromatic hydrocarbons, meaning you breathe them in.

For those not in the know, canine cancer detection refers to a unique method of screening for cancer — by using the canine «olfactory» (meaning smell essentially) ability to detect tumours due to the low concentrations of alkanes and aromatic compounds they contain.

«Our IRMOF -74-III compounds feature different groups in the pore interior, including methyl, aromatic, primary and secondary amines, that can be covalently functionalized with primary amines and used for the selective capture of carbon dioxide in 65 - percent relative humidity,» said Yaghi, who holds joint appointments with Berkeley Lab's Materials Sciences Division and UC Berkeley's chemistry department.

Some toxic compounds found in oil such as polycyclic aromatic hydrocarbons have been shown to cause birth defects in humans; it is conceivable that they are responsible for some of the recent stillbirths in dolphins.»

Essential Oils are natural aromatic compounds found in the seeds, bark, stems, roots, flowers, and other parts of plants.