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

作　　者：张红城[1,2] 李春阳[3] 董捷[1,2] 尹策[1,2] 

机构地区：[1]中国农业科学院蜜蜂研究所,北京100093 [2]农业部国家蜂产品加工专业分中心,北京100093 [3]江苏省农科院农产品加工研究所,江苏南京210014

出　　处：《食品与生物技术学报》2009年第1期14-17,共4页Journal of Food Science and Biotechnology

基　　金：国家“十一五”科技支撑项目(2006BAD14B07-5-0);农业部基本科研业务费专项(200703);中国农业科学院蜜蜂研究所研发基金项目(200702)

摘　　要：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）.

关 键 词：花粉醇提物 酪氨酸酶 抑制作用 

分 类 号：R285[医药卫生—中药学]