How To Use Ketone In A Sentence
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Over time, however, it oxidizes and chemically degrades to form alcohols, ketones, aldehydes, acids and esters.
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The Friedman-Stricker article discusses a particular event in the liver that could trigger the hunger signal: a shift away from "oxidative metabolism" (the Krebs cycle for making energy out of anything) to direct production of glucose and ketone bodies (gluconeogenesis and ketogenesis - remember these from "diabetes is like starvation" above?).
Sun Bloggers
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Among its constituents are benzyl acetate, linalyl acetate, benzyl alcohol, indol, methyl anthranilate, and a ketone jasmone.
The Handbook of Soap Manufacture
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I'm taking a bit of a liberty here by omitting alcohols, ethers, and other oxygenated compounds, partly because, ethanol and MTBE notwithstanding, they still don't amount to a large fraction of the mix, and partly because their photochemistry is pretty close to that of paraffins, or ketones that don't photolyze, i.e. break up by the direct action of sunlight.
Hot Buttered
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Many fatty foods are susceptible to autoxidation, involving the oxidation of lipid molecules to produce malodorous ketones, alcohols and acids that adversely affect the texture, flavour and taste of food.
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Low molecular weight aldehydes and ketones are soluble in water because the carbonyl oxygen atom allows the molecules to form strong hydrogen bonds with the molecules of water.
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Even a healthy animal not exposed to noxious substances will have some toxins present in the body (e.g., mercaptans, short-chain fatty acids, skatoles, indoles, ketone bodies).
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Ketonen's idea was to define a system of proof search: one starts from a given sequent to be derived, chooses a formula in it, and writes the premisses of a rule that can conclude the given sequent.
Chores
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At this moment primitive sexual gland former base excretive spermary ketone is right become divided of male reproduction organ forms a move decisive action.
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The role of epicuticular waxes has been considered mainly to provide reflectance of UV radiation, but some wax components, for example, secondary alcohols (e.g., nonacosan-10-ol) and β-diketones, absorb UV radiation [41].
Effects of ultraviolet-B on forest vegetation in the Arctic
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Following these discoveries Ruzicka and his co-workers were able to prepare the whole series of alicyclic ketones with 9 to over 30 carbon atoms as ring members, compounds that had previously been believed to be incapable to existence.
Leopold Ruzicka - Biography
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Aliphatic and aromatic hydrocarbons, ketones, ethers, glycols and higher alcohols are not corrosive to magnesium and its alloys.
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Earlier studies also support the fact that phenolic compounds could convert to different tautomers, quinone, ketone and dimers at higher pH in the presence of oxidative species.
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Besides the benzoic ether and, probably, a phenol, mentioned above, there may be recognized in ilang-ilang oil an aldehyde or ketone, inasmuch as upon shaking it with bisulphite of sodium I observed the formation of a very small quantity of crystals.
Scientific American Supplement, No. 288, July 9, 1881
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These leftovers, the ketones, not only cause bad breath but constipation, nausea, and weakness as well.
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The real danger in ketosis is that ketones are acidic, and high levels of ketones make the blood abnormally acid.
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Accordingly, in pre-empting neuronal glucose utiliztion by the neuron, ketone bodies may compromise neuronal energetic efficiency and, together with both endogenously generated and diffusible ROS exported by the fatty acid-oxidizing astrocyte, promote cell injury.
Metabolism and ketosis | The Blog of Michael R. Eades, M.D.
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On the other hand, the permeability of the membrane for small uncharged solutes such as low molecular weight alcohols, amides, ketones etc., did not change.
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The administration of the ketone bodies hydroxybutyrate and acetoacetate is known to exert a protective effect against metabolic disorders associated with cerebral pathologies.
BioMed Central - Latest articles
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Once the liver's stores of glycogen are gone, the body begins to shift over to what is called ketosis or ketone production - the use of fatty acids as fuel Drag to Playlist
WN.com - Articles related to 40 ways to celebrate Earth Day’s 40th Anniversary
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Two ketones (methyl isobutyl ketone and 5-ethyl cyclopentanone) were also identified.
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Included among these compounds are some of the best known of all chemical families, including the hydrocarbons, alcohols, ethers, aldehydes and ketones, and organic acids.
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Various brews can give you color indicators for the presence of double bonds, methyl ketones, aldehydes and the like.
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Over time, however, it oxidizes and chemically degrades to form alcohols, ketones, aldehydes, acids and esters.
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In the dog the blood sugar rises from normal to 150 to 300 mg per cent; there is glycosuria; ketonemia and ketonuria increase; and there is polyuria and polydipsia.
Bernardo Houssay - Nobel Lecture
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The clinical characteristics of acetonaemia are hypoglycaemia, depressed appetite, with high levels of serum fatty acids and ketones.
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Dermal absorption and disposition of musk ambrette, musk ketone, and musk xylene in human subjects.
Synthetic musks
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When chroma of serum Potassium ion is elevatory, can promote adrenal coriaceous secrete aldehyde solid ketone, make potassium is excreted thereby increase, make potassium ion chroma returns to normal.
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Mr W.D. Field groups the solvents of pyroxyline into classes thus: Two of the monohydric alcohols; compound ethers of the fatty acids with monohydric alcohols, aldehydes; simple and mixed ketones of the fatty acid series.
Nitro-Explosives: A Practical Treatise
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Once the liver's stores of glycogen are gone, the body begins to shift over to what is called ketosis or ketone production - the use of fatty acids as fuel
WN.com - Articles related to 40 ways to celebrate Earth Day’s 40th Anniversary
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Left untreated, ketones can cause diabetic ketoacidosis, a serious condition which can result in coma or even death.
Times, Sunday Times
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Acrylic and ketone resins are used in place of the traditional dammar, mastic, and copal resins for the manufacture of many oil painting media and picture varnishes.
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In place of glucose, the liver uses fat molecules to make acetoacetate and hydroxybutyrate, two compounds known as ketones.
THE NEW ATKINS FOR A NEW YOU
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Ketones can create a mild feeling of euphoria which is the high frequently associated with fasting.
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Over time, however, it oxidizes and chemically degrades to form alcohols, ketones, aldehydes, acids and esters.
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Methyl lithium is very reactive and acts as a nucleophilic methylating reagent to electrophilic functional groups, such as ketones.
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Secondary alcohols can be readily recovered from ketones by breaking the double bond between the oxygen and carbon and adding hydrogen.
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Furfural reacts with phenols, ketones, and esters as an aldehyde; removal of the aldehyde group yields furan, which is converted to tetrahydrofuran, used in the manufacture of nylon.
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In the dog the blood sugar rises from normal to 150 to 300 mg per cent; there is glycosuria; ketonemia and ketonuria increase; and there is polyuria and polydipsia.
Bernardo Houssay - Nobel Lecture
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Accordingly, in pre-empting neuronal glucose utiliztion by the neuron, ketone bodies may compromise neuronal energetic efficiency and, together with both endogenously generated and diffusible ROS exported by the fatty acid-oxidizing astrocyte, promote cell injury.
Metabolism and ketosis | The Blog of Michael R. Eades, M.D.
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On the other hand, the permeability of the membrane for small uncharged solutes such as low molecular weight alcohols, amides, ketones etc., did not change.
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The P-diketone structure can undergo keto-enol tautomerism in solutions.
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Other applications and solutions include ball bearings, bolts and screws, washers, shafts, hinges, spacers and other mechanical pieces Torlon® PAI (polyamide-imide), KetaSpire® PEEK (polyetheretherketone) and PrimoSpire® SRP
ITnews
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Objective:To research the significance of serum acetonic ketone body ratio(AKBR) for judging the severity and prognosis of infectious multiple organ dysfunction syndrome(MODS).
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Typical examples are aromatic ketones such as acetophenone, benzophenone, benzoin ethyl ether and benzyl dimethyl ketal.
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By contrast, in the case of hydrogen abstraction, the ketone on rose bengal would become reduced to the alcohol, and the resulting molecule is no longer photoactive.
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So, by such a transport inhibition of ketone body efflux from the liver, the brain is deprived of those energetic compounds leading to lower BDH activity.
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A polyaryletherketone polymer replaces acetal, titanium, and other traditional materials.
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First of all, the method does not work with just any antibodies, it works with antibodies to a particular hapten (a β-diketone).
New Scientist - Online News
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Many chemicals found in common perfumes and fragrances are designated as ‘hazardous’, including methylene chloride, toluene, methyl ethyl ketone, methyl isobutyl ketone, ethyl alcohol and benzyl chloride.
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Objective:To research the significance of serum acetonic ketone body ratio(AKBR) for judging the severity and prognosis of infectious multiple organ dysfunction syndrome(MODS).
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If the ketone side group of the dye is protonated, there will be a shift in the conjugation of the double bonds.
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However, there is more than a tenfold difference between the ketone levels seen in ketoacidosis and those achieved with a carbohydrate-restricted diet, which we call nutritional ketosis.
THE NEW ATKINS FOR A NEW YOU
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If a higher priority group is present (such as an aldehyde, ketone or carboxylic acid), then it is necessary to use the prefix \ "hydroxy\", [3] for example: 1-hydroxy-2 - propanone (CH3COCH2OH).
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The company also raised its 2-ethylhexanol, n-propyl alcohol, n-butyraldehyde, and specialty ketones prices by 3¢/lb.
Purchasing - Top Stories
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He has also been concerned with work on the constitution of unsaturated compounds by quantitative ozonization, condensation of aldehydes and ketones, ketone splitting of tertiary alcohols, the cracking of hydrocarbons in presence of aluminium chloride and catalytic hydrogenation and dehydrogenation processes under reduced pressures.
Victor Grignard - Biography
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Included among these compounds are some of the best known of all chemical families, including the hydrocarbons, alcohols, ethers, aldehydes and ketones, and organic acids.
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Water, ethanol, volatile organic acids, aldehydes, esters, acetals, and ketones, many of them powerfully aromatic, are among the azeotrope components in wines.
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Methyl lithium is very reactive and acts as a nucleophilic methylating reagent to electrophilic functional groups, such as ketones.
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Reagents useful for the oxidation of secondary alcohols to ketones, but normally inefficient for oxidation of primary alcohols to aldehydes, include chromium trioxide (CrO3) in a mixture of sulfuric acid and acetone (Jones oxidation) and certain ketones, such as cyclohexanone, in the presence of aluminium isopropoxide (Oppenauer oxidation).
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In this reaction, an ester joins with another ester, a ketone, or a nitrile.
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Polybenzimidazoles cooking in printing ink is methyl ethyl ketone, agitate little vinegar, and so on.
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Check your ketone level if you experience any of these signs and symptoms or your blood sugar is elevated, with blood sugars persistently above 250 milligrams per deciliter (mg/dL).
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In contrast, when the 4'-ketone group of ABA is reduced to form the diols then the 1'-oxygen becomes labile and exchanges and even epimerizes and so also does the oxygen atom of the 4'-hydroxyl group.
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Manufacture of ketones can also be carried out by the dehydrogenation of a secondary alcohol at high temperature.
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The benzoin molecule has a C=O bond as well, but bonded to two other carbons, thus it is a ketone.
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These included formaldehyde, several other aldehydes, ketones, aliphatic and aromatic hydrocarbons, glycol ethers, organic acids, and alcohols.
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In the case of aldehydes and ketones containing carbonyl groups, the highly nucleophilic Grignard reagent contributes its electron pair to form a bond with the carbon atom.
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Besides, they possess good storage stability, can be dissolved in low M.W ketones (acetone, butanone) and esters (acetic ether, acetic butyrin).
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When this happened, ketone bodies acetone, acetoacetate and beta-hydroxybutyrate were produced, which could then be converted to a secondary alcohol known as isopropanol, said the lead researcher, Wayne Jones, who is also on Sweden’s National Board of Forensic Medicine.
Dustbury.com » Blame it on the Worcestershire sauce
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The ketone functional group can also take part in autocondensation reactions which eliminate water.
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The second, with a Î’ max at 267 nm, corresponds to the benzoyl group of the diketone form.
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The urine ketone dip test was highly sensitive for diabetic ketoacidosis and diabetic ketosis with or without acidosis.
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Manufacture of ketones can also be carried out by the dehydrogenation of a secondary alcohol at high temperature.
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Ketones can be used in aldol condensation reactions, although they are less reactive than aldehydes in this regard.
Citizendium, the Citizens' Compendium - Recent changes [en]
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The production of s-butanol is greatly stimulated with the increase in demand for methyl ethyl ketone worldwide.
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In place of glucose, the liver uses fat molecules to make acetoacetate and hydroxybutyrate, two compounds known as ketones.
THE NEW ATKINS FOR A NEW YOU
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Aldol condensation reactions occur when the carbanion carbon of an enolate reacts with the carbonyl carbon of a ketone or aldehyde, forming a new carbon-carbon bond.
Citizendium, the Citizens' Compendium - Recent changes [en]
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Over time, however, it oxidizes and chemically degrades to form alcohols, ketones, aldehydes, acids and esters.
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Secondary alcohols can be formed by reduction of the ketone by hydrogen gas in the presence of a catalyst.
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Although ketones are not as reactive as aldehydes, they are also important intermediates in the synthesis of many compounds.
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On the other hand, the permeability of the membrane for small uncharged solutes such as low molecular weight alcohols, amides, ketones etc., did not change.
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To identify the presence of a ketone functional group several tests must be carried out.
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Acrylic and ketone resins are used in place of the traditional dammar, mastic, and copal resins for the manufacture of many oil painting media and picture varnishes.
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• From the self-digested bean, almond and dairy and flowery notes benzaldehyde; diacetyl and methyl ketones; linalool
On Food and Cooking, The Science and Lore of the Kitchen
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Many chemicals found in common perfumes and fragrances are designated as ‘hazardous’, including methylene chloride, toluene, methyl ethyl ketone, methyl isobutyl ketone, ethyl alcohol and benzyl chloride.
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Several epoxy ketones were converted to aldols in good yields upon irradiation.
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Most often, the ketone is the much more stable of the two tautomers.
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The shake contains caprylic triglyceride, a compound derived from coconut oil that is metabolized in the liver to produce ketone bodies, which serve as alternate brain fuel for Alzheimer's patients, the company says.
Fueling the Brain With a Milkshake
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When insulin levels are sufficiently low to permit ketone-body production, increased glucagon levels further stimulate ketogenesis.
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Cortisone acts as a physiological antagonist to insulin by decreasing glycogenesis (formation of glycogen) and promotes breakdown of lipids (lipolysis), and proteins, and mobilization of extrahepatic amino acids and ketone bodies.
Vytorin: Dis-Enhance-d | The Blog of Michael R. Eades, M.D.
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The urine ketone dip test was highly sensitive for diabetic ketoacidosis and diabetic ketosis with or without acidosis.
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People who are in long term ketosis tend to adapt to it, and ketone levels actually drop somewhat.
Metabolism and ketosis | The Blog of Michael R. Eades, M.D.
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Intramolecular forces in the chlorobenzene backbone of the polymer create a strong film that is chemically inert to acid, base, and ketone exposure.
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The urine ketone dip test was highly sensitive for diabetic ketoacidosis and diabetic ketosis with or without acidosis.
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Lactic acidosis should be suspected in any diabetic patient with metabolic acidosis lacking evidence of ketoacidosis (ketonuria and ketonemia).
Digital50.com Digital 50 Daily Industry News RSS Feed
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Aldol condensation reactions occur when the carbanion carbon of an enolate reacts with the carbonyl carbon of a ketone or aldehyde, forming a new carbon-carbon bond.
Citizendium, the Citizens' Compendium - Recent changes [en]
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These may contain solvents such as toluene, isopropryl alcohol, ethyl and butyl acetates, acetone and other ketones.
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Ketonen wanted to formulate Skolem's formal rules of proof within sequent calculus.
Chores
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These may contain solvents such as toluene, isopropryl alcohol, ethyl and butyl acetates, acetone and other ketones.
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The boat was carrying 6000 metric tons of styrene, isopropyl and methyl ethyl ketone.
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Because these terpenoids contain many functional groups - mainly unsaturated and saturated aldehydes and ketones - how they exert their antimicrobial activity is not well understood.
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Formation of phytogenic aerosols and sedimentation a carbohydrate; b volatile organic carbon (acetic, propionic, or butyric acid; aldehydes; alcohols; ketones; ethers; etc.); c these bacteria can use several S-containing reduced compounds (S, S2 -, SO32 -, etc.) as an energy source Controls on nitrous oxide fluxes
Effects of changes in climate and UV radiation levels on function of arctic ecosystems in the short and long term
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Stereochemically and functionally rich polycyclic compounds are obtained by the first crossed aldehyde-ketone benzoin reaction in excellent yield under mild reaction conditions.
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Water, ethanol, volatile organic acids, aldehydes, esters, acetals, and ketones, many of them powerfully aromatic, are among the azeotrope components in wines.
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In a haloform reaction with iodine, bromine, or chlorine, methyl ketones are converted into the corresponding carboxylic acid and haloform.
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The axioms that Ketonen considers are those of projective and affine geometry, the former taken from Skolem's 1920 paper discussed in the first section above.
Chores
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There are the old standard gel strippers containing caustic solvents such as methylene chloride and methyl ethyl ketone.
Www.philadelphiaweekly.com Philadelphia Weekly
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Extracted as a lone alkaloid from a potpourri of nutrients in the coca plant, then processed with forty-some chemicals, including ether, acetone and methyl ketone - it is a deadly drug.
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Check your ketone level if you experience any of these signs and symptoms or your blood sugar is elevated, with blood sugars persistently above 250 milligrams per deciliter (mg/dL).
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The early days of smog chemistry were dominated by research into the chemistry of paraffins and olefins, so much so, in fact, that it wasn't until the mid-1970s that researchers realized that the photolysis of aldehydes and ketones was the primary source of catalytic radicals in the smog formation process.
Hot Buttered
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Ketones can undergo a process known as autocondensation, where several ketone molecules react together to eliminate water.
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Beta hydroxybutyrate a ketone is not a major contributor.
Metabolism and ketosis | The Blog of Michael R. Eades, M.D.
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Furfural reacts with phenols, ketones, and esters as an aldehyde; removal of the aldehyde group yields furan, which is converted to tetrahydrofuran, used in the manufacture of nylon.
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There are basically four kinds of "reactive organics" that are important in smog photochemistry: paraffins, olefins, aromatics, and carbonyl compounds aldehydes and ketones, the latter being more commonly formed in the smog process than emitted outright.
Hot Buttered
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In this reaction, an ester joins with another ester, a ketone, or a nitrile.
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When this happened, ketone bodies acetone, acetoacetate and beta-hydroxybutyrate were produced, which could then be converted to a secondary alcohol known as isopropanol, said the lead researcher, Wayne Jones, who is also on Sweden’s National Board of Forensic Medicine.
Dustbury.com » Blame it on the Worcestershire sauce
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Ketones are extensively used as solvents, with acetone being the most well known example.
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Although ketones are not as reactive as aldehydes, they are also important intermediates in the synthesis of many compounds.
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On the basis of this formulation of irene and the production of ββγ-trimethyl pimelic acid by ozonization of irone, structural formulæ have been postulated for this ketone by Ruzicka and his co-workers.
Science
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Such electron transfer from the amine to the triplet ketone within a charge transfer complex is a well-established phenomenon.
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Limitedly resistant to vegetable oil and strong solvents , such as ketones and esters.
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Aliphatic and aromatic hydrocarbons, ketones, ethers, glycols and higher alcohols are not corrosive to magnesium and its alloys.
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These may contain solvents such as toluene, isopropryl alcohol, ethyl and butyl acetates, acetone and other ketones.
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Ketones are also used in the flavoring and perfumery industry.
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He has also been concerned with work on the constitution of unsaturated compounds by quantitative ozonization, condensation of aldehydes and ketones, ketone splitting of tertiary alcohols, the cracking of hydrocarbons in presence of aluminium chloride and catalytic hydrogenation and dehydrogenation processes under reduced pressures.
Victor Grignard - Biography
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Secondary alcohols can be readily recovered from ketones by breaking the double bond between the oxygen and carbon and adding hydrogen.
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Pigmentation of the sclera and ear cartilage occurred only after the age of 30 years and is extremely variable in severity. 3 Tendon and ligament ruptures occur with minimal provocation, and kidney stones probably form because of the extremely high levels of urinary HGA excretion (renal clearance rates of 400 to 500 ml per minute). 4�Diagnosis depends on typical radiological findings and demonstration of reducing substance-homogentisic acid in the urine. 4 Several therapeutic approaches have been used in patients with alkaptonuria. 5 High-dose vitamin C decreases urinary benzoquinone acetic acid but has no effect on HGA excretion and no credible studies have shown that treatment with vitamin C is clinically effective. 6 The main therapeutic step is direct pharmacologic reduction of HGA production with nitisinone, a triketone herbicide that inhibits
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Oxidation of alcohols to aldehydes and ketones Allylic and benzylic alcohols can be oxidized in presence of other alcohols using certain selective oxidants such as manganese dioxide (MnO2).
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Dietary anaplerotic therapy with triheptanoin is used in clinical trials to promote energy production in patients with peripheral and brain Krebs cycle deficit, as its metabolites - C5 ketone bodies - cross the blood-brain barrier.
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One highly characteristic reaction of aldehydes and ketones is nucleophilic addition to the carbon-oxygen double bond.
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Treatment of 1,3-diketones containing benzoyloxy group in 1% aqueous sodium hydroxide can afford directly the corresponding ring-A hydroxylated flavone.
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Other ketotic states such as alcoholic and starvation ketosis can also produce a positive urine ketone test without corresponding serum ketones, affecting the specificity of the urine dip test for detecting ketonemia.
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More than 95% of Raspberry ketone, Piperonal, Modafinil have been exported to the Europe and America and South Eastern Asian countries and enjoy an excellent fame in the overseas market.
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Also, Celanese of Dallas is raising price by 3â¢/lb for paraformaldehyde, 5â¢/lb for acetic acid, ethyl acetate, vinyl acetate monomer, methyl isobutyl carbinol and methyl isobutyl ketone and 8â¢/lb for acetic anhydride.
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