Nuclear magnetic resonance studies of cyclodextrin complexes of linoleic acid and arachidonic acid.
IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore
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http://ir.cftri.com/4724/
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| Title |
Nuclear magnetic resonance studies of cyclodextrin complexes of linoleic acid and arachidonic acid.
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| Creator |
Jyothirmayi, N.
Ramadoss, C. S. Divakar, S. |
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| Subject |
31 Sugar Chemistry
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| Description |
Structures of a- and /3-cyclodextrin complexes of linoleic and arachidonic acids were investigated by
detailed 1H spin-lattice relaxation time (7'1) measurements and one-dimensional difference nuclear
Overhauser enhancement (NOE) studies. On the basis of the observed NOE proximities and 2'1 values,
it is concluded that the carboxyl arms of both linoleic and arachidonic acids are present within the
cyclodextrin cavity with double bonds partly exposed or buried. While the double bond at 9-10 in
linoleic acid is buried, the one at 12-13 is exposed, the molecule from position 11 being present in an
inclined position, with the methyl end pointing away from the cavity laterally. The double bond in
arachidonic acid at position 5-6 is buried; the other at 8-9 lies exposed. While the carboxyl arm is
present within the cavity, the methyl arm lies parallel to the carboxyl arm outside the cavity.
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| Date |
1991
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| Type |
Article
PeerReviewed |
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| Format |
pdf
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| Language |
en
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| Identifier |
http://ir.cftri.com/4724/1/J.%20Agric.%20Food%20Chem.%201001%2C%2039%2C%202123-2127.pdf
Jyothirmayi, N. and Ramadoss, C. S. and Divakar, S. (1991) Nuclear magnetic resonance studies of cyclodextrin complexes of linoleic acid and arachidonic acid. Journal of Agricultural and Food Chemistry, 39 (12). pp. 2123-2127. |
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