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The countercurrent distribution of pure monoglycerides and some related substances
Author(s) -
Perry E. S.,
Brokaw G. Y.
Publication year - 1955
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02649007
Subject(s) - degree of unsaturation , partition coefficient , monoglyceride , chemistry , countercurrent exchange , countercurrent distribution , partition (number theory) , diglyceride , chromatography , isomerization , organic chemistry , thermodynamics , fatty acid , mathematics , catalysis , combinatorics , physics
ConclusionsThe countercurrent distribution curves have been determined for eight pure and one commercial monoglyceride, one diglyceride, and one diglycerol monoester. Certain generalities exist between the partition coefficients and the structures of the acid radicals of the monoglyceride.An increase in the chain length of the acid produces an increase in the partition coefficient. The 2‐monoesters have lower partition coefficients than the corresponding 1‐isomers. Unsaturation in the acid decreases the value of the partition coefficient.The direct separation of mixtures of 1‐ and 2‐monoglycerides by countercurrent distribution is thwarted by the rapid isomerization of the 2‐isomer to the 1‐form.