黑芝麻黑色素的分离纯化、结构表征及体外抗氧化活性

李杰,贾栩超,张瑞芬,刘磊,池建伟,黄菲,董丽红,张名位

Isolation, Structural Characterization and Antioxidant Activity of Black Sesame Melanin

LI Jie,JIA XuChao,ZHANG RuiFen,LIU Lei,CHI JianWei,HUANG Fei,DONG LiHong,ZHANG MingWei

表5 黑芝麻黑色素不同级分的体外抗氧化活性

Table 5 Antioxidant activities of different fractions of black sesame melanin

样品 Sample DPPH (IC50 μg·mL-1) ABTS (IC50 μg·mL-1) FRAP (mmol FeE·g-1 DW) ORAC (μmol TE·g-1 DW) Vc 13.00±1.04a 12.00±1.12a 13.27±0.25c 9 091.75±347.74d 粗黑色素 Crude melanin 45.00±1.40b 23.00±2.60b 1.22±0.09a 3 730.19±191.38b Fr1 83.00±2.14d 53.00±1.41d 1.05±0.15a 3 141.80±195.74a Fr2 54.00±2.13c 30.00±1.04c 1.62±0.05b 4 143.76±99.96c