The content of the minor class of phospholipids, N-acylphosphatidylethanolamines (NAPEs) in mature seeds of cultivated plants: kidney bean (Phaseolus vulgaris L.), soybean (Glycine max (L.) Merr.), soft spring wheat (Triticum aestivum L. emend. Fiori et Paol), barley (Hordeum vulgare L.), and oat (Avena sativa L.), and the products of technological processing of grain cultures (floor, bran) was studied. Reliable NAPE identification was performed by a comparison of their chromatographic mobility with the marker NAPE sample from wheat flour and synthetic phosphatidylmethanol, and also using specific reagents. Kidney bean cv. Shchedraya seeds contained the highest amount of NAPEs. In legumes, the content of NAPEs varied not only in different species but also in different cultivars of a single species. In cereals, the highest NAPE content was detected in the barley seeds and best quality wheat flour. The content of NAPEs in cereal seeds was less variable than in legumes. NAPE quantification showed that accumulation of this phospholipid class occurred in parallel with accumulation of total phospholipids in seeds. The relation between NAPE content and the processes of seed development and their lipid composition is discussed. The seeds and products best suitable for NAPE isolation are recommended.
Russian Journal of Plant Physiology – Springer Journals
Published: Mar 12, 2011
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