Comparison of hydrogen bonding for chiral and racemic 1-monostearoylglycerols in solvent.
J Oleo Sci
; 57(5): 287-92, 2008.
Article
em En
| MEDLINE
| ID: mdl-18391477
ABSTRACT
Comparison of the hydrogen bonding of racemic RS-1-monostearoylglycerol and chiral S-1-monostearoylglycerol in benzene was carried out through the NMR measurement. In addition, the concentration dependence of a chirality of S-1-monostearoylglycerol in hexane was studied though UV and circular dichroism (CD) measurements. The chemical shifts of OH protons of the S- and RS-1- monostearoylglycerols indicated that the hydrogen bonding between the R- and S-form molecules of RS-1-monostearoylglycerol is stronger than that between the S- and S-form molecules of S-1-monostearoylglycerol in the low concentration region and that the difference in the strength of hydrogen-bonding between them becomes small in the high concentration region. The chirality of the S-1-monostearoyglycerol in hexane decreased with increasing its concentration. This suggests that the association of chiral S-1-monoacylglycerol arising from its increasing concentration reduces the chirality of S-1-monostearoylglycerol.
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Base de dados:
MEDLINE
Assunto principal:
Solventes
/
Estearatos
Idioma:
En
Revista:
J Oleo Sci
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Japão