acetoin


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acetoin

[ə′sed·ə·wən]
(organic chemistry)
CH3COCHOHCH3 A slightly yellow liquid, melting point 15°C, used as an aroma carrier in the preparation of flavors and essences; produced by fermentation or from diacetyl by partial reduction with zinc and acid.
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Next, the tubes were incubated for 15 minutes at 60[degrees]C to create acetoin from the reaction of sulfuric acid with acetolactate.
Mutation of Trp-574-Leu ALS gene confers resistance of radish biotypes to iodosulfuron and imazethapyr herbicides/Mutacao da Trp-574-Leu do gene ALS confere resistencia de biotipos de nabo ao herbicida iodosulfurom e imazetapir
The possible food-associated volatile, acetoin, was tested because it is a microbial metabolic product attractive to nitidulids and a component of Lepidoptera frass (Davis et al.
Evaluation of lures for monitoring silk flies (Diptera: Ulidiidae) in sweet corn
Flavoring chemicals in e-cigarettes: diacetyl, 2, 3-pentanedione, and acetoin in a sample of 51 products, including fruit-, candy-, and cocktail-flavored e-cigarettes.
Electronic Cigarette (E-Cigarette) Using: Toxicological Aspects
iniae: acetoin production (Voges Proskauer) (Remel, USA), aminopeptidase leucine (LAP) (Remel, USA), arylamidase pyrrolidonyl (PYR) (Remel, USA), starch hydrolysis (Merck, Germany) and esculin hydrolysis (Neogen, Acumedia, USA).
Estreptococos beta-hemolitico en tilapias del nilo (Oreochromis niloticus) cultivadas en Sullana, Piura--Peru
Over acidification during storage is an occasional problem, but lack of flavor caused by reduction of diacetyl to acetoin is a more frequently occurring problem (Walstra et al.
Storage stability and chemical constituents of cultured buttermilk prepared by incorporation of Paneer whey
The above behavior suggests the synthesis of other compounds such as non-precipitating levan, cited by Viikari (1984), sorbitol, acetic acid, lactate, acetaldehyde, glycerol, acetoin, di-hydroxy-ketone, mannitol and gluconic acid (Ernandes & Garcia-Cruz, 2011; Madigan, Martinko, Dunlap, & Clark, 2010).
Ethanol and Levan production by sequential bath using Zymomonas mobilis immobilized on alginate and chitosan beads/Producao de etanol e levana por batelada sequencial utilizando Zymomonas mobilis imobilizadas em esferas de alginato e quitosana
Flavoring chemicals in e-cigarettes: diacetyl, 2,3-pentanedione, and acetoin in a sample of 51 products, including fruit-, candy-, and cocktail-flavored e-cigarettes.
Electronic cigarette use among working adults--United States, 2014
Chan School of Public Health tested 51 types of flavored e-cigarettes and liquids sold by leading brands for the flavoring chemicals diacetyl, acetoin and 2,3-pentanedione.
Harmful chemical found in e-cigarettes
Sugar fermentations showed positive results for glucose, mannose, inositol, sorbitol, rhamnose, melibiose, arabinose, while they were negative for beta-galactosidase (ONPG), urease, tryptophan deaminase, indole production, acetoin production, and gelatin hydrolysis.
Outer membrane protein C (ompC) gene as the target for diagnosis of Salmonella species isolated from human and animal sources
G) Arginine dihydrolase production (ADH) Lysine decarboxylase Variable production(LDC) Ornithine decarboxylase Variable production(ODC) Citrate utilization (CIT) -- H2S production(H2S) -- Urease production(URE) -- Tryptophane deaminase -- production (TDA) Indole production(IND) Variable Acetoin production(VP) -- Gelatinase production(CEL) Variable Acid from glucose(GLU) Variable Acid from manitol(MAN) Variable Acid from inositol(INO) -- Acid from Sorbitol(SOR) -- Acid from rhamnose(RHA) -- Acid from sucrose(SAC) -- Acid from melibiose(MEL) -- Acid from amygdalin (AMY) + Acid from arabinose (ARA) -- Cytochrome oxidase (OX) +
Gyrodactylus anguillae and Vibrio vulnificus infections affecting cultured eel, Anguilla anguilla/Infeccoes por Gyrodactylus anguillae e Vibrio vulnificus afetam enguias criadas em cativeiro, Anguilla anguilla
To confirm additional changes in biotype attributes in the variant Kolkata isolates during 2003-2014, we used the Voges-Proskauer test to determine production of acetylmethyl carbinol and found that the tested strains produced acetoin and were positive for chicken erythrocytes agglutination.
Sensitivity to polymyxin B in El Tor Vibrio cholerae O1 strain, Kolkata, India
Tests for citrate (CIT), acetoin production (VP) and gelatinase utilization (GEL) were performed by filling both the well and cupule of the test strips.
Indole-producing bacteria from the biosynthetic organs of a muricid mollusc could contribute to Tyrian purple production

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