Abstract: The phospholipids in bee pollens from different flowers such as tea, sunflower, rose, seed melon and motherwort were extracted, separated by TLC and analyzed by HPLC. The fatty acid profiles in purified phospholipids were further analyzed by GC-FID. The results showed that all the bee pollens under investigation were rich in polyunsaturated phospholipids. Tea bee pollen exhibited the highest content of phospholipids, which mainly consisted of phosphatidylinositol (PI), phosphatidylserine (PS), phosphatidyl ethanolamine (PE), phosphatidylcholine (PC) and lysophosphatidylcholine (LPC). Polyunsaturated fatty acids with higher relative contents of linoleic acid and linolenic acid were found in bee pollen phospholipids. The content of polyunsaturated fatty acids was more than 50% in bee pollen from each source. The highest relative content of linolenic acid was found in tea bee pollen as 56.0%. Therefore, bee pollen can have a broad application prospect owing to the presence of phospholipids.

Key words: bee pollen, polyunsaturated phospholipids, phosphalidylserine, phosphatidylcholine, phosphatidylethanolamine