Results 21 to 30 of about 5,130,397 (333)

A NEW SYNTHESIS OF ASPARTIC ACID [PDF]

open access: yesJournal of Biological Chemistry, 1930
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

Association between the aspartic acid D-repeat polymorphisms and osteoarthritis susceptibility

open access: yesMedicine, 2018
Objectives: Association between the D-repeat of asporin (ASPN) gene and osteoarthritis (OA) was still inconsistent. We performed this meta-analysis to systematically assess the D-repeat polymorphisms in OA susceptibility.
Honglin Wang   +5 more
semanticscholar   +1 more source

Isolation and functional verification of an aspartate aminotransferase gene from Neoporphyra haitanensis

open access: yesBMC Plant Biology, 2023
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

Strecker degradation products of aspartic and glutamic acids and their amides

open access: yesCzech Journal of Food Sciences, 2001
Aspartic and glutamic acids, asparagine and glutamine were oxidised with either potassium peroxodisulphate or glyoxal. Nonvolatile products were derivatised and analysed by GC/FID and GC/MS.
J. Rössner   +3 more
doaj   +1 more source

Hydrogels Based on Poly(aspartic acid): Synthesis and Applications

open access: yesFrontiers in Chemistry, 2019
This review presents an overview on the recent progress in the synthesis, crosslinking, interpenetrating networks, and applications of poly(aspartic acid) (PASP)-based hydrogels.
H. Adelnia, I. Blakey, P. Little, H. Ta
semanticscholar   +1 more source

Mutation of aspartic acid 262 on estrogen receptor abrogates estradiol signaling pathway

open access: yesGynecological Endocrinology, 2023
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

FLOW INJECTION POTENTIOMETRIC ANALYSIS OF ASPARTIC ACID, GLUTAMIC ACID AND ASCORBIC ACID USING PLATINUM ELECTRODES

open access: yesJurnal Ilmu Dasar, 2012
The presence of  weak acids in solution can be detected using a potentiometric detector. Platinum was used as a working electrode and Ag/AgCl as a reference electrode.
Yeni Maulidah Muflihah   +3 more
doaj   +1 more source

Thermal decomposition of the amino acids glycine, cysteine, aspartic acid, asparagine, glutamic acid, glutamine, arginine and histidine

open access: yesbioRxiv, 2017
BackgroundThe pathways of thermal instability of amino acids have been unknown. New mass spectrometric data allow unequivocal quantitative identification of the decomposition products.ResultsCalorimetry, thermogravimetry and mass spectrometry were used ...
I. Weiss   +3 more
semanticscholar   +1 more source

Effect of aspartic acid and glutamate on metabolism and acid stress resistance of Acetobacter pasteurianus

open access: yesMicrobial Cell Factories, 2017
BackgroundAcetic acid bacteria (AAB) are widely applied in food, bioengineering and medicine fields. However, the acid stress at low pH conditions limits acetic acid fermentation efficiency and high concentration of vinegar production with AAB. Therefore,
Haisong Yin   +6 more
semanticscholar   +1 more source

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