A NEW SYNTHESIS OF ASPARTIC ACID [PDF]
In previous syntheses of aspartic acid the following reactions have been used: The decomposition of acid ammonium malate by heat,1 the racemization of active aspartic acid2 and active asparagine,3 the reaction of maleic or fumaric acid with ammonia,4 the reduction of oxalacetic ester oxime,5 the reaction of silver fumarate or potassium acid fumarate ...
B. W. Smart, Max S. Dunn
openaire +2 more sources
Biodegradability and tissue reaction of random copolymers of L-leucine, L-aspartic acid, and L-aspartic acid esters [PDF]
A series of copoly(α-amino acids) with varying percentages of hydrophilic (l-aspartic acid) and hydrophobic monomers (l-leucine, ß-methyl-l-aspartate, and ß-benzyl-l-aspartate) were implanted subcutaneously in rats and the macroscopic degradation ...
Bantjes, A. +4 more
core +3 more sources
Differentiation Between Ripening Stages of Iberian Dry-Cured Ham According to the Free Amino Acids Content [PDF]
In this paper, the differentiation of three ripening stages, postsalting, drying, and cellar, of Iberian dry-cured ham has been carried out according to their free amino acids contents. Eighteen L-amino acids, alanine, 2-aminobutanoic acid, aspartic acid,
Alcázar Rueda, Ángela +3 more
core +1 more source
Specific Adsorption of Aspartic Acid on Iron (III) and Nickel (II) Oxides
The dependences of zeta - potential and adsorption of aspartic acid on NiO and Fe2O3 oxideswere investigated as a function of aspartic acid concentration, pH and adsorption time using microelectrophoresis and potentiometric titration methods. Shifting of
I. B. Dmitrieva +3 more
doaj +1 more source
Immunohistochemical localisation of d-β-aspartic acid in pingueculae [PDF]
Background: D-β-Aspartic acid residues, which are biologically uncommon, have been reported to accumulate in various proteins of the living body with age.
Fujii N +6 more
core +1 more source
Background Neoporphyra haitanensis is a commercial laver species in China. Aspartic acid is an important flavor amino acid, and aspartate aminotransferase (AAT) is a crucial enzyme in its biosynthesis.
Shuang Li +3 more
doaj +1 more source
Dissociation constants and thermodynamic properties of amino acids used in CO2 absorption from (293 to 353) K [PDF]
The second dissociation constants of the amino acids βalanine, taurine, sarcosine, 6-aminohexanoic acid, DL-methionine, glycine, L-phenylalanine, and L-proline and the third dissociation constants of L-glutamic acid and L-aspartic acid have been ...
Albert A +44 more
core +5 more sources
Addition of weak acids in electrolytes to prevent osmosis in aqueous organic redox flow batteries
Water transfer issues related to unbalanced ionic strengths in aqueous organic redox flow batteries (AORFBs) are often overlooked. In this work, a simple strategy based on the addition of a weak acid in the negolyte was studied to prevent osmosis in ...
Jean-Marie Fontmorin +4 more
doaj +1 more source
Mutation of aspartic acid 262 on estrogen receptor abrogates estradiol signaling pathway
Objective ERα (estrogen receptor alpha) exerts nuclear genomic actions and membrane-initiated non-genomic effects. The mutation of aspartic acid into alanine in vitro revealed the critical role of aspartic acid 258 (corresponding to mouse amino acid site
Xingyan Xu +9 more
doaj +1 more source
Predicting protein decomposition: the case of aspartic-acid racemization kinetics [PDF]
The increase in proportion of the non-biological (D-) isomer of aspartic acid (Asp) relative to the L- isomer has been widely used in archaeology and geochemistry as a tool for dating. The method has proved controversial, particularly when used for bones.
A. C. T. van Duin +24 more
core +3 more sources

