LIPID-COMPOSITION OF 10 EDIBLE SEED SPECIES FROM NORTH-VIETNAM

The lipid composition and oil content of ten edible seed species from North Vietnam (Cassia tora, Ipomoea aquatica, Raphanus sativus, Citrul lus lanatus, Cucumis melo, Cucurbita pepo, Luffa cylindrica, Phaseolus vulgaris, Vigna aurea, Sesamum orientale) have been investigated. The contents of hydrocarbon, triacylglycerol, free fatty acid, sterol, di - and monoglycerol, and polar lipid fraction!; have been determined wi th a thin-layer chromatography (TLC)/flame-ionization detection analyz er. Molecular species of hydrogenated triacylglycerols and the fatty a cid composition of total lipids also have been analyzed by capillary g as-liquid chromatography. The quantities of major phospholipid classes of four seed species (C. tora, I. aquatica, R. sativus, V. aurea) hav e been determined by two-dimentional TLC and the spectrophotometrical phosphorus analysis. The fatty acid compositions of nonpolar and polar lipid fractions of these four species also have been analyzed.