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Showing 1 to 15 of 15 for “"Dihydroxyacetone"”.
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Kinetics of Conversion of Dihydroxyacetone to Methylglyoxal in Honey
… non-peroxide activity (NPA). Varying levels of dihydroxyacetone (DHA) are found in mānuka nectar which converts to MGO once honey is harvested; however, this is not a 1:1 conversion. The price of mānuka honey increases as the MGO concentration increases; hence some beekeepers store their honey …
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CHEMICAL PATHWAYS FOR THE PREPARATION OF LABELED DERIVATIVES OF DIHYDROXYACETONE.
… FOR THE PREPARATION OF LABELED DERIVATIVES OF DIHYDROXYACETONE.
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Elucidating the molecular basis of dihydroxyacetone (DHA) production in Leptospermum nectar
… scoparium) nectar contains variable amounts of dihydroxyacetone (DHA), a triose sugar that is the precursor to methylglyoxal (MGO), the antimicrobial compound underpinning the high value of mānuka honey and forming the basis of the Aotearoa-New Zealand honey industry. This trait is unique to …
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Binding of organic monophosphates to the dihydroxyacetone phosphate binding sites of rabbit muscle aldolase
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Biochemical characterization of the first step in ether lipid biosynthesis: acylation of dihydroxyacetone phosphate
… acyltransferase, DHAPAT, known to metabolize dihydroxyacetone phosphate, resides in peroxisomes. The principal function of DHAPAT in mammals is the biosynthesis of ether-based lipids which are widely distributed in the body and noticeably abundant in membranes of the nervous system. Compared …
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Preparation, Characterization, and In Vitro Evaluation of Multiple Emulsion for Topical Application of Lawsone and Dihydroxyacetone
Dihydroxyacetone (DHA) is the primary ingredient in most sunless tanners. Lawsone is a primary component of red henna, used in henna tattooing and reversed tattooing. DHA initiates a reaction called the Maillard reaction which results in the browning of the skin. Application of lawsone results in …
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Effect of oxygen and carbon dioxide tensions on release of sugars from peanut roots under gnotobiotic conditions
… sugars, galactose; mannose; xylose; ribose; and dihydroxyacetone, were identified in peanut root exudates. Galactose was present in all 72 root exudate samples, dihydroxyacetone in 69, ribose in 33, mannose in 8, and xylose in 5. Analysis of variance showed a significant difference at the 20% …
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Flavor development in lactic fermentation of ultrafiltered cottage cheese whey
… magnesium, phosphorus, chlorine, and citrate), dihydroxyacetone, lactose, and acetic acid. Addition of dihydroxyacetone prior to fermentation increased the production of glyoxal, methylglyoxal, and diacetyl as detected by high performance liquid chromatography.</p>
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Hyperpolarized Carbon-13 Magnetic Resonance Measurements of Tissue Perfusion and Metabolism
… was adapted for imaging of [2-<sup>13</sup>C]dihydroxyacetone, a novel HP agent that probes enzymatic flux through multiple biochemical pathways <em>in vivo</em>.</p> <p>Our results demonstrate the capacity of HP MRI to measure tissue perfusion and metabolism in ways not possible with the …
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2-substituted-1, 3-dioxan-5-ones : synthesis, reactions and synthetic applications
… equivalents of natures building block--1,3-dihydroxyacetone and could be used in construction of many polyoxygenated natural products. A general, simple, cheap and easy to scale-up synthesis of 2-substituted-1,3dioxan-5-ones was developed. The yields of this three-step procedure, starting …
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Respuestas fúngicas a señales ambientales: Funciones de las proteínas CarO, OpsA, CutA y AcyA en Fusarium fujikuroi
… propose that F. fujikuroi produces glycerol from dihydroxyacetone, and that CutA is the enzyme involved in the synthesis of this precursor by dephosphorylation of dihydroxyacetone-3P. The last Chapter of this Thesis is focused on the study of Fusarium rhodopsins, membrane-embedded photoreceptors …
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Intensified biocatalysis for production of fuel and chemicals from lipids.
… Enzymatic conversion of glycerol can produce 1,3-dihydroxyacetone (DHA), a unique and versatile chemical with a broad range of application potentials, by selective oxidizing the hydroxyl group(s) of glycerol. The price of DHA is more than 200 times higher than that of glycerol. In this work, DHA …
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The Purification, Properties and Subunit Structure of Glycerol Dehydrogenase
… NAD, 2.8 x 10<sup>-4</sup> M, K<sub>m</sub> dihydroxyacetone, 5.1 x 10<sup>-4</sup> M, K<sub>m </sub>NADH, 2.3 x 10<sup>-5</sup> M.</p> <p>During the course of the purification of the enzyme it was found that multiple peaks of enzyme activity were eluted from ion-exchange chromatography …
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Deoxyribophosphoaldolase of human erythrocytes: identification, purification and characterization
… pyruvate, ribose-5-P, deoxyribose, lactate and dihydroxyacetone phosphate. 5. The enzyme reacted optimally at pH 6.5. 6. Deoxyribophosphoaldolase was activated by several carboxylic acids. The degree of activation was greater in the presence of citric acid than any dicarboxylic acid tested. An …
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Structural and Biochemical Studies of Streptococcus sp. alpha-Glycerophosphate Oxidase
… (Glp). Glp is converted to dihydroxyacetone phosphate (DHAP) by GlpO in certain bacteria and by GlpD in others. Heme deficient lactic acid bacteria, such as Streptococcus sp. and Enterococcus casseliflavus, contain GlpO, whereas bacteria such as Bacillus subtilis and …