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Diffusion properties of lipids—Pure and in seeds
Author(s) -
Anderson R.,
Osredkar R.,
Žagar V.
Publication year - 1977
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/bf02909064
Subject(s) - diffusion , relaxation (psychology) , triglyceride , chemistry , nuclear magnetic resonance , proton , molecule , fick's laws of diffusion , analytical chemistry (journal) , materials science , thermodynamics , organic chemistry , cholesterol , physics , nuclear physics , biochemistry , psychology , social psychology
and Summary Diffusion constants of some fatty acids and triglycerides in pure form and also in seeds have been measured at different temperatures in order to elucidate the motion and organization of triglyceride molecules in oils. The size of the oil storage cavity (droplet) in seeds has been estimated to be 0.8 μ. Temperature dependences of the proton T 1 relaxation time in some samples have been measured by pulsed nuclear magnetic resonance (NMR). From these measurements it is concluded that since activation energies for the relaxation mechanism, diffusion, is the same in seeds as in pure oils, 0.22 eV, the nature of the motion is similar.