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Relationship between the calculated glyceride composition and the iodine value of cottonseed and pecan oils
Author(s) -
Bailey August V.,
Harris James A.,
Skau Evald L.
Publication year - 1967
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/bf02558167
Subject(s) - glyceride , cottonseed oil , iodine value , iodine , cottonseed , chemistry , composition (language) , food science , chromatography , organic chemistry , fatty acid , linguistics , philosophy
The concentrations of the major component glyceride types in cottonseed and pecan oils were calculated at selected iodine values from the fatty acid compositions of the oils using the Gunstone equations. The relative concentrations of the glycerides change markedly with increasing iodine value. In cottonseed oil the concentrations of the PLL and LLL glyceride types, for example, increase from 19.5 to 26.3% and from 6.5 to 16.7%, respectively, for an iodine value change from 95 to 112. In pecan oil the concentration of the OOL glycerides goes through a maximum at an iodine value of 110. The concentrations of the OLL and OOO glycerides show a tenfold increase and fivefold decrease, respectively, as the iodine value increases from 90 to 120. Graphs are presented which permit the estimation of the glyceride composition of random cottonseed or pecan oils of know iodine value. These will be useful in the selection of these oils as source materials in the production of tailor‐made fats and oils or other edible or inedible industrial products.