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以粗壮女贞苦丁茶[Ligustrum rbutum(Roxb)B lum e]、大叶冬青苦丁茶(IlexlartifoliaThunb)为试材,在体外模拟胃液pH条件下,对比研究了不同冲泡条件下苦丁茶浸出液对NO2-和.OH的清除效果。结果表明,不同处理的茶样对NO2-的清除作用多随冲泡温度上升或冲泡时间延长而增强;磨碎冲泡的清除效果比直接冲泡好;大叶冬青苦丁茶对NO2-的清除作用优于粗壮女贞苦丁茶。但粗壮女贞苦丁茶对.OH的清除作用较大叶冬青苦丁茶好,直接冲泡对.OH的清除效果略比磨碎冲泡好,较好的冲泡温度在80~90℃。
Using the test of Ligustrum rutum (Roxb) B lum e and Ilex lartifolia Thunb, we studied the effect of Kuding tea under different brewing conditions Removal of NO2- and. OH scavenging effect. The results showed that the removal efficiency of NO2- by tea samples treated with different treatments increased with the increase of brewing temperature or the time of brewing. The removal efficiency of milled brewing was better than that of direct brewing. Cleansing effect is superior to thick priestess Kudingcha. However, the thick virginity of the tea kudzu.OH scavenging effect of the larger leaves of holly ilex tea, direct brewing on .OH scavenging effect slightly better than the grinding brewing, the better brewing temperature at 80 ~ 90 ℃ .