Journal
FOOD CHEMISTRY
Volume 112, Issue 4, Pages 924-928Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2008.07.003
Keywords
Broad beans (Vicia faba); Fatty acids; Phosphatidylcholine; Phosphatidylethanolamine; Phosphatidylinositol; Positional distribution; Triacylglycerols
Funding
- Cooperative Research Center of Life Science
- Grants-in-Aid for Scientific Research [20500730] Funding Source: KAKEN
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Fatty acid distribution of triacylglycerols (TAG) and phosptiolipids (PL) obtained from the four cultivars of broad beans (Vicia faba) was investigated. Total lipids extracted from the beans were separated by thin-layer chromatography into eight fractions. The major lipid components were TAG (47.7-50.1%) and PL (47.5-50.5%), while hydrocarbons, steryl esters, free fatty acids, diacylglycerols (1,3-DAG and 1,2-DAG) and monoacylglycerols were present in minor proportions (1.8-2.4%). The major PL components were phosphatidylcholine (56.4-58.4%), phosphatidylethanolamine (20.3-21.7%) and phosphatidylinositol (16.6-18.6%). Phosphatidylinositol was unique in that it had the highest saturated fatty acid content among the three PL. No significant differences (P > 0.05) in fatty acid distribution existed when the different cultivars were compared. The fatty acid distributions in the TAG were evident among the four cultivars: unsaturated fatty acids were predominantly concentrated in the sn-2 position, and saturated fatty acids primarily occupied the sn-1 or sn-3 position in the oils. These results could be useful to both consumers and producers for manufacture of traditional foods in Japan and elsewhere. (c) 2008 Elsevier Ltd. All rights reserved.
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