摘要
采用超声波法提取黑茶中的黄酮类化合物,通过光谱分析方法测定了黄酮含量.本法的回收率为97.5%～103.5%,相对标准偏差小于0.068%.通过流动注射化学发光法研究了黑茶的抗氧化性能,所得结果表明,黑茶具有较高的黄酮含量和较强的抗氧化性能.
Ultrasonic method is applied for extracting flavones in the black teas. The content of the flavones is determined by absorption spectroscopy. The recovery is 97.5% - 103.5% and the coefficient of variation is less than 0.068%. Anti oxidation effect of the black teas is studied by flow injection chemiluminescence. The results show that the black teas is abundant in the flavones compounds and has a strong anti oxidative effect.
出处
《鞍山师范学院学报》
2009年第4期21-24,共4页
Journal of Anshan Normal University
关键词
黑茶
黄酮
超声提取
流动注射化学发光
抗氧化性
Black teas
Flavones
Ultrasonic extraction
Flow-injection chemiluminescence method
Anti-oxidative effect
