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ketone
ketone bodies
A Dictionary of Food and Nutrition
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2005
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© A Dictionary of Food and Nutrition 2005, originally published by Oxford University Press 2005. (Hide copyright information)
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ketone bodies Acetoacetate, β‐hydroxybutyrate and acetone; acetoacetate and acetone are chemically
ketones; although β‐hydroxybutyrate is not, it is included in the term ketone bodies because of its metabolic relationship with acetoacetate.
In the fasting state (from about 4 hours after a meal), fatty acids are mobilized from adipose tissue as a metabolic fuel. Most tissues have only a limited capacity for fatty acid oxidation; however, the liver can oxidize more than is required for its own needs. Acetoacetate and β‐hydroxybutyrate are formed from fatty acids in the liver, and are transported in the bloodstream for use as metabolic fuels by other tissues. Acetoacetate is chemically unstable and breaks down to
acetone, which is poorly metabolized, and is excreted in the urine and on the breath.
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Chinese Markets for Methyl Ethyl Ketone Report Reveals that Demand has grown at a Fast Pace in the Past Decade for Methyl Ethyl Ketone.
M2 Presswire; 6/11/2009; 700+ words
; ...Markets: Chinese Markets for Methyl Ethyl Ketone Report Reveals that Demand has grown at...Pace in the Past Decade for Methyl Ethyl Ketone(C)1994-2009 M2 COMMUNICATIONS RDATE...the "Chinese Markets for Methyl Ethyl Ketone" report to their offering. Chinas demand...
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Cu(I)-catalyzed asymmetric allylation of ketones and ketimines *.(Report)
Magazine article from: Pure and Applied Chemistry; 5/1/2008; ; 700+ words
; ...catalyzed asymmetric allylation of ketones and ketimines is described...tetrasubstituted carbon; ketones; ketimines. INTRODUCTION...addition step of allylcopper to ketones). Results of kinetic studies...allylboronate], and 0th order to [ketone]) indicate that transmetallation...
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Homoallylic ketones and pyrroles by way of copper-catalyzed cascade additions of alkyl-substituted vinyl Grignard reagents to esters.(Report)
Magazine article from: Canadian Journal of Chemistry; 11/1/2007; ; 700+ words
; ...from the homoallylic ketones by a sequence featuring...addition, homoallylic ketone, alkyl-substituted...alcohols and alkenyl ketones, have limited the utility...diones and homoallylic ketones in 6%-47% yields...yields of homoallylic ketone were achieved in the...
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Feasibility of sigmatropic rearrangement on electron-deficient coumarinyl ketones.(Report)
Magazine article from: Canadian Journal of Chemistry; 5/1/2008; ; 700+ words
; ...alkyl/aryl 7-hydroxy-8-coumarinyl ketones were converted to 7-O-allyl and 7...cyclohex-2'-ene-1'-ylcoumarinyl ketones prepared is accounted herein. The rearrangement...allyl-7-hydroxy-8-coumarinyl ketones 3 and alkyl/aryl 6-cyclohex-2...
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One in Three Parents Surveyed Unaware of Easy Ketone Test That May Help Prevent the Onset of Diabetic Ketoacidosis (DKA).
PR Newswire; 9/13/2006; 700+ words
; ...deficiency and high blood ketone levels result in...Frequent testing for ketones during times of...levels and blood ketones at home, readily detecting elevated ketone levels," Dr...deficiency and high blood ketone levels. Ketones are substances formed...
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Increasing Demand of Methyl Ethyl Ketone
Magazine article from: China Chemical Reporter; 4/16/1997; 700+ words
; Table 1 Consumption of Methyl Ethyl Ketone in China in Recent Years (t) Sector...76 300 Table 2 Import of Methyl Ethyl Ketone in China in Recent Years Import amount...33 481 1996 57 592 38 820 Methyl ethyl ketone is an excellent organic solvent and organic...
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Photochemistry of 9-methylbicyclo[3.3.1]nonyl aryl ketones--a novel 1,5-disproportionation of 1,4-hydroxy biradicals and asymmetric induction using the solid-state ionic chiral auxiliary method (1).
Magazine article from: Canadian Journal of Chemistry; 9/1/2005; ; 700+ words
; ...photochemistry of adamantyl phenyl ketones and norbornyl phenyl ketones (2 and 3) (Scheme 1) (2...bicyclo[3.3.1]nonyl phenyl ketone system hydrogen abstraction...methylbicyclo[3.3.1]nonyl phenyl ketones (1) are achiral molecules...
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Bimolecular Hydrogen Abstraction from Phenols by Aromatic Ketone Triplets[dagger]
Magazine article from: Photochemistry and Photobiology; 1/1/2006; ; 700+ words
; ...the π,π* ketone triplets. Ketones with lowest charge-transfer...transfer. Rate constants for ketone triplet quenching via this...reduction potential of the ketone (10). Aromatic ketones abstract hydrogen from phenols...
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KetoCare Ketone Test Strips launched for diabetics, low-carb dieters.
Newspaper article from: Biotech Business Week; 7/19/2004; 700+ words
; ...introduced KetoCare Ketone Test Strips, which...to monitor their ketones, according to the...Everyday, people use Ketone tests to help them monitor the level of ketones in the body. However...carb diets encourage Ketone testing due to the...that the presence of ketones lets the ...
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Home Diagnostics, Inc. Introduces KetoCare Ketone Test Strips; Offers Low Carb Dieters and People with Diabetes National Brand Performance at an Affordable Price.
Business Wire; 6/22/2004; 700+ words
; ...to monitor their ketones. Branching out beyond...new KetoCare(TM) Ketone Test Strips for urinalysis...Everyday, people use Ketone tests to help them monitor the level of ketones in the body. However...carb diets encourage Ketone testing due to the...that the presence of ketones lets ...
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ketone
Book article from: The Columbia Encyclopedia, Sixth Edition
ketone , any of a class of organic...The general formula for a ketone is RCOR′, where R...aryl groups. The simplest ketone, where R and R′ are...is one of the most important ketones used in industry. Low-molecular...
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ketone bodies
Book article from: A Dictionary of Food and Nutrition
ketone bodies Acetoacetate, β‐...acetoacetate and acetone are chemically ketones ; although β‐hydroxybutyrate is not, it is included in the term ketone bodies because of its metabolic relationship...
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ketone body
Book article from: A Dictionary of Biology
ketone body Any of three compounds, acetoacetic...of the metabolism of body fat deposits. Ketone bodies are normally used as energy sources...starvation or in diabetics), the blood level of ketone bodies rises and they may be present in...
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ketones
Book article from: A Dictionary of Food and Nutrition
ketones Chemical compounds containing a carbonyl group (C=O), with two alkyl groups attached to the same carbon; the simplest ketone is acetone (dimethylketone, (CH 3 ) 2 −C=O).
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dimethyl ketone
Book article from: The Columbia Encyclopedia, Sixth Edition
dimethyl ketone see acetone .
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