Abstract
Tea (Camellia sinensis) pollen is one of the major bee-collected staple pollens marketed widely in Taiwan. The study was analysis the tea pollen pellet size and physicochemical analysis, Simultaneously, four kinds of tea pollen extract were prepared using either aqueous (cold water extract, CWE; and hot water extract, HWE) or ethanolic (50% ethanolic extracts, 50%EE; and 95% ethanolic extract, 95EE) extraction to obtain the various fatty acid content. The pollen shape indicated that the pollen grain was a solid, equilateral triangle with each side averaging 40-50 .tm. The proximate analysis of tea pollen showed that the water activity is low (0.23±0.01). There also are abundant protein (20.03±1.05%), fat (6.86±0.13%) and ash (3.04±0.04%) in tea pollen. In four tea pollen extracts, palmitic acid (272.95±7.01 to 2341.24±96.82 tg/g) and oleic acid (109.79±11.68 to 2786.73±99.43 μg/g) was the most plentiful. Lauric acid and myristic acid were detected only in ethanolic extracts and none of aqueous extracts. Plus, the linoleic acid (72.59±4.99~1 458.10±11 4.60 μg/g) and linolenic acid (3 8.43±8.77~969.13±129.75 μg/g) contents were high in the four pollen extracts. In conclusion, tea pollen could be a good nutritional and dietary antioxidant supplement.
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