8种蜂花粉醇提物对酪氨酸酶的单酚氧化活性的抑制作用

Inhibiting Effect of Ethanolic Extracts of Eight Kinds of Bee Pollens on the Activity of Tyrosinase to Oxidize Monophenol

研究了杏花花粉、茶花花粉、油菜花粉、向日葵花粉、荷花花粉、荞麦花粉、玫瑰花粉、五味子花粉等8种花粉醇提物对酪氨酸酶的单酚氧化活性的抑制作用。结果表明,这8种花粉醇提物对以酪氨酸为底物的酪氨酸酶抑制作用存在显著性差异。其中杏花花粉醇提物表现出最好的抑制作用,IC50为(0.124±0.020)mg/mL,荞麦花粉醇提物的抑制作用相对较弱,IC50为(2.658±0.092)mg/mL。

The inhibition effect of ethanolic extracts of eight kinds of bee pollens, on tyrosinase activity were studied in this study, which were apricot pollen, camellia pollen, rape pollen, sunflower pollen, lotus pollen, buckwheat pollen, rose pollen and sehisandra pollen. The result indicated that those ethanolic extracts exhibted a significant inhibitiation effect on tyrosinase which with tyrosine as substrate. Among of them, apricot pollen had the strongest inhibitive activity（IC50 was 0. 124±0. 020 mg/mL）. As a control, buckwheat pollen had the weakest activity（ IC50 was 2. 658±0. 092 mg/mL）.