2,3-Butanedione. - Brewing and Distilling Analytical Services
... Its production by contaminating microorganisms was once difficult to curtail in certain breweries and forced them to close due to the “Sarcina” sickness. Described as having typical levels of from 8-600 ppb. in beer - it was once considered a desired flavor note in some English ales. Though a major ...
... Its production by contaminating microorganisms was once difficult to curtail in certain breweries and forced them to close due to the “Sarcina” sickness. Described as having typical levels of from 8-600 ppb. in beer - it was once considered a desired flavor note in some English ales. Though a major ...
Acrylamide Reduction in Potato Chips by Selection of
... et al., 2010; Anese et al., 2009; Gökmen and Şenyuva, 2007; Mestdagh et al., 2008a; Pedreschi et al., 2009). It is now widely accepted that acrylamide is formed during Millard reaction between the amino acid asparagine and reducing sugars at temperatures above 120˚C (Amrein et al., 2003; Becalski et ...
... et al., 2010; Anese et al., 2009; Gökmen and Şenyuva, 2007; Mestdagh et al., 2008a; Pedreschi et al., 2009). It is now widely accepted that acrylamide is formed during Millard reaction between the amino acid asparagine and reducing sugars at temperatures above 120˚C (Amrein et al., 2003; Becalski et ...
Data mining for important amino acid residues in multiple sequence
... and properties are described in the following section. ...
... and properties are described in the following section. ...
nutritional biochemistry
... regulated. Depending upon the need, 25-hydroxycholecalciferol is differentially hydroxylated at C1 or C24 position. 1α- Hydroxylase in kidney is regulated by various factors. Hypocalcimia, hypophosphatemia and PTH stimulate this enzyme. Estrogen and some other hormones also help in regulation of its ...
... regulated. Depending upon the need, 25-hydroxycholecalciferol is differentially hydroxylated at C1 or C24 position. 1α- Hydroxylase in kidney is regulated by various factors. Hypocalcimia, hypophosphatemia and PTH stimulate this enzyme. Estrogen and some other hormones also help in regulation of its ...
CHAPTER 2 Nitric oxide inhibits glycogen synthesis in - UvA-DARE
... fromm proline oxidation, the effect of SNAP on the intracellular accumulation of glutamatee was tested. The level of this amino acid was not affected by SNAP, nor was proline-induccdd cell swelling (data not shown). Subsequently,, the effect of SNAP on the activity of glycogen synthase phosphatase a ...
... fromm proline oxidation, the effect of SNAP on the intracellular accumulation of glutamatee was tested. The level of this amino acid was not affected by SNAP, nor was proline-induccdd cell swelling (data not shown). Subsequently,, the effect of SNAP on the activity of glycogen synthase phosphatase a ...
Elucidating Flux Regulation of the Fermentation Modes of
... It is impossible to complete my PhD study without the help of many people. First of all, I must express my sincerest gratitude to my supervisors, Christian Solem and Peter Ruhdal Jensen. Christian has taught me numerous principles, skills and knowledge in practical as well as theoretical molecular b ...
... It is impossible to complete my PhD study without the help of many people. First of all, I must express my sincerest gratitude to my supervisors, Christian Solem and Peter Ruhdal Jensen. Christian has taught me numerous principles, skills and knowledge in practical as well as theoretical molecular b ...
Mechanism of citric acid accumulation by Aspergillus niger in solid
... Although most other enzymes decreased their activities during the later phase of cultivation, there was no definite difference between each parent and its mutant. However, oxaloacetate hydrolase, for oxalate formation, was at higher activity in the mutants than in the parents. ...
... Although most other enzymes decreased their activities during the later phase of cultivation, there was no definite difference between each parent and its mutant. However, oxaloacetate hydrolase, for oxalate formation, was at higher activity in the mutants than in the parents. ...
METABOLIC CUES AND REGULATORY PROTEINS
... CHAPTER ONE: INTRODUCTION..........................................................................1 Summary of thesis ...............................................................................................1 Life cycle of L. pneumophila ....................................................... ...
... CHAPTER ONE: INTRODUCTION..........................................................................1 Summary of thesis ...............................................................................................1 Life cycle of L. pneumophila ....................................................... ...
Document
... isomers of spin labeled stearic acid, doxyl stearates, was applied to study the caffeine-HSA interaction in further detail. It was found that upon caffeine binding, the hyperfine splitting decreases for HSA labeled with 5-doxylstearate. This phenomenon may indicate either an increase in mobility or ...
... isomers of spin labeled stearic acid, doxyl stearates, was applied to study the caffeine-HSA interaction in further detail. It was found that upon caffeine binding, the hyperfine splitting decreases for HSA labeled with 5-doxylstearate. This phenomenon may indicate either an increase in mobility or ...
On the mechanism of action of the antifungal agent propionate
... A. nidulans on glucose but not on acetate; the latter was shown to inhibit propionate oxidation. When grown on glucose a methylcitrate synthase deletion mutant is much more sensitive towards the presence of propionate in the medium as compared to the wild-type and accumulates 10-fold higher levels o ...
... A. nidulans on glucose but not on acetate; the latter was shown to inhibit propionate oxidation. When grown on glucose a methylcitrate synthase deletion mutant is much more sensitive towards the presence of propionate in the medium as compared to the wild-type and accumulates 10-fold higher levels o ...
Spectral and catalytic properties of aryl-alcohol oxidase, a
... effect of pH on this reaction was similar to that found with isovanillyl alcohol, i.e. higher oxidation rate at pH 6 (0.59 s−1 ) than at pH 9 (0.48 s−1 ). Conversion of fluorinated benzyl compounds by AAO was also investigated by 19 F NMR. After 1 h incubation of o-fluorobenzyl, m-fluorobenzyl and p ...
... effect of pH on this reaction was similar to that found with isovanillyl alcohol, i.e. higher oxidation rate at pH 6 (0.59 s−1 ) than at pH 9 (0.48 s−1 ). Conversion of fluorinated benzyl compounds by AAO was also investigated by 19 F NMR. After 1 h incubation of o-fluorobenzyl, m-fluorobenzyl and p ...
Gluconeogenesis differs in developing chick embryos derived from
... isotopes present in the original molecule and that contributed by the derivative using the matrix approach (Fernandez et al., 1996). Natural isotopomer distributions in unlabelled glucose and AA were quantified from blood samples taken from embryos that had not received [13C6]glucose. Enrichments ar ...
... isotopes present in the original molecule and that contributed by the derivative using the matrix approach (Fernandez et al., 1996). Natural isotopomer distributions in unlabelled glucose and AA were quantified from blood samples taken from embryos that had not received [13C6]glucose. Enrichments ar ...
Microsoft Word
... of the Ni(II) complex in the lowest energy conformation was prepared for the R1-Ser-ArgHis-Trp-Trp-R3 peptide. 10 lowest energy conformers, out of 1000 generated by simulated annealing, are shown in Fig. 4A. This structure is characterized by a small area and a closely packed structure. The complexe ...
... of the Ni(II) complex in the lowest energy conformation was prepared for the R1-Ser-ArgHis-Trp-Trp-R3 peptide. 10 lowest energy conformers, out of 1000 generated by simulated annealing, are shown in Fig. 4A. This structure is characterized by a small area and a closely packed structure. The complexe ...
The role of homocysteine in endothelial dysfunction
... (5-MTHF) or from betaine to form methionine. The reaction with MTHF occurs in all tissues and is vitamin B12-dependent, while the reaction with betaine is confined mainly to the liver and is vitamin B12-independent [31]. Homocysteine remethylation occurs by receiving the methyl group from 5-MTHF, wh ...
... (5-MTHF) or from betaine to form methionine. The reaction with MTHF occurs in all tissues and is vitamin B12-dependent, while the reaction with betaine is confined mainly to the liver and is vitamin B12-independent [31]. Homocysteine remethylation occurs by receiving the methyl group from 5-MTHF, wh ...
Full-Text PDF
... using primer–guest conjugates. Keywords: amylose; enzymatic reaction; phosphorylase; polysaccharide; polymerization; supramolecule ...
... using primer–guest conjugates. Keywords: amylose; enzymatic reaction; phosphorylase; polysaccharide; polymerization; supramolecule ...
Soybean Phospholipids
... Mixed fatty acids and mixed fatty acid ethyl ester are added as fluidity agents during the vacuum concentrating procedure to improve the fluidic property of concentrated phospholipids and prevent phospholipids separating with the oil and guarantee the stability of phospholipids products. The product ...
... Mixed fatty acids and mixed fatty acid ethyl ester are added as fluidity agents during the vacuum concentrating procedure to improve the fluidic property of concentrated phospholipids and prevent phospholipids separating with the oil and guarantee the stability of phospholipids products. The product ...
Acetate formation in the photoheterotrophic bacterium Chloroflexus
... C. aurantiacus converted glucose to acetate as the major fermentation product. Up to 1.5 mol acetate per mol glucose were formed. The formation of acetate by C. aurantiacus in glucose-containing media has been reported earlier (Krasil’nikova & Kondrat’eva, 1987); however, acetate/glucose stoichiomet ...
... C. aurantiacus converted glucose to acetate as the major fermentation product. Up to 1.5 mol acetate per mol glucose were formed. The formation of acetate by C. aurantiacus in glucose-containing media has been reported earlier (Krasil’nikova & Kondrat’eva, 1987); however, acetate/glucose stoichiomet ...
Chemistry.of Organic Compounds
... the students majoring in chemistry are preparing themselves for industrial positions. Hence the practical applications and economic aspects of organic chemistry frequently are discussed in some detail. For some years textbooks have been published which present aliphatic and aromatic compounds simult ...
... the students majoring in chemistry are preparing themselves for industrial positions. Hence the practical applications and economic aspects of organic chemistry frequently are discussed in some detail. For some years textbooks have been published which present aliphatic and aromatic compounds simult ...
Characterization of an Immuno-dominant Variable Surface
... an adenine residue 17 by 5' of the start codon by primer extension sequence analysis using oligonucleotide SR09 (data not shown) . 5' untranslated regions of actin (11 bp) (36, 44) and ferredoxin (9 bp) (45) genes were likewise very short as compared with other eukaryotic gene transcripts . A common ...
... an adenine residue 17 by 5' of the start codon by primer extension sequence analysis using oligonucleotide SR09 (data not shown) . 5' untranslated regions of actin (11 bp) (36, 44) and ferredoxin (9 bp) (45) genes were likewise very short as compared with other eukaryotic gene transcripts . A common ...
Does elevated atmospheric [CO2] alter diurnal C uptake and the
... Hungate et al., 2003; Luo et al., 2004). Investigation of this mechanism has mainly been conducted in mature (fully expanded) leaves (Matt et al., 2001; Ellsworth et al., 2004). However, the stimulation of productivity by elevated [CO2] will depend on the metabolic status of growing tissue. Growing ...
... Hungate et al., 2003; Luo et al., 2004). Investigation of this mechanism has mainly been conducted in mature (fully expanded) leaves (Matt et al., 2001; Ellsworth et al., 2004). However, the stimulation of productivity by elevated [CO2] will depend on the metabolic status of growing tissue. Growing ...
Biosynthesis
Biosynthesis (also called biogenesis or anabolism) is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined together to form macromolecules. This process often consists of metabolic pathways. Some of these biosynthetic pathways are located within a single cellular organelle, while others involve enzymes that are located within multiple cellular organelles. Examples of these biosynthetic pathways include the production of lipid membrane components and nucleotides.The prerequisite elements for biosynthesis include: precursor compounds, chemical energy (e.g. ATP), and catalytic enzymes which may require coenzymes (e.g.NADH, NADPH). These elements create monomers, the building blocks for macromolecules. Some important biological macromolecules include: proteins, which are composed of amino acid monomers joined via peptide bonds, and DNA molecules, which are composed of nucleotides joined via phosphodiester bonds.