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Conversion of an optically active substance to a racemic form.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌræs ə məˈzeɪ ʃən, reɪˈsi mə-, rə-)

the conversion of an optically active substance into an optically inactive mixture of equal amounts of the dextrorotatory and levorotatory forms.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The significance of such bonds can be considered by its use in biological systems for transamination and elucidation of racemization mechanisms [4].
This amino acid quantification can be used for further analysis, such as racemization dating.
Lactic acid has two optically active forms out of which L-lactic acid is the natural and most common form, whereas D-lactic acid is produced either by microorganisms or racemization. Furthermore, it acts much like comonomers which optimize the kinetics of crystallization for specific fabrication processes and applications [1].
Interestingly, the structural similarities of Schiff base reagents (Schiff base ligands and their metal complexes) to biomolecules facilitate elucidation of the biological mechanisms of transformation and racemization reactions [4].
assumed that the reason of inequality in the formed peaks is due to (i) racemization of L-TPC during the derivatization reaction, (ii) kinetic resolution of the two enantiomers, and (iii) the difference in diastereoisomers' yields which were explained in terms of keto-enol tautomerization of the analytes.
In this mechanism, EMA is produced via the R-pathway of isoleucine catabolism, involving the racemization of 2-keto-3-methylvaleric acid (from S to R form), followed by conversion to EMA via 2-methylbutyryl-CoA and 2-ethyl-3-hydroxypropionyl-CoA (2-ethyl-3-hydroxypropionic acid, noted in Fig.
Subsequently, many scholars use dentin translucency, cementum ring structure, amino acid racemization, and modified Gustafson method for age estimation (Singh et al., 2014; Shrigiriwar & Jadhav, 2013; Vandevoort et al., 2004; Telang et al., 2014; Gilmore & Grote, 2012).
glycation end-products (AGEs), (4) aspartic acid racemization (AAR), and
Color of melanoidins might be connected with the enolization of sugars and racemization of amino acids (Kim & Lee, 2008).
Age and growth estimates of bowhead whales (Balaena mysticetus) via aspartic acid racemization. Canadian Journal of Zoology 77(4):571 580.