[Objective] The study aimed to study the dose effect relationship of 5 kind of the scented tea for scavenging the sodium nitrite and disconnecting the nitrosa mine, and provide the theoretical basis for advocating the scented tea as the health food so as to guide the people in buying and drinking the scented tea according to the its advantages. [Method] Under the simulated human gastric juice (Ph value of 3.0 and temperature of 37℃), the ability of the scavenging the sodium nitrite and disconnecting the nitrosa mine synthesis for 5 kinds of scented tea were studied and compared with the ascorbic acid (VC). [ Result] Among 5 kinds of scented tea, the scavenging and disconnecting effects of the os-manthus was the best, that of lilies, Kang Xianhua and marigold was the middle and that of chrysanthemum was the worst. The capability for scavenging the sodium nitrite of the osmanthus was 93. 88% and the capability for disconnecting the nitrosa mine synthesis was 82.68% , which was equal to the scavenging rate on the sodium nitrite and disconnecting rate on the nitrosa mine synthesis by 1.2 mg VC respectively. [ Conclusion ] The scented tea not only had the function of maintain beauty and keep young and played an important role on the human body.%[目的]研究5种花茶清除亚硝酸钠和阻断亚硝胺的剂量效应关系,为提倡花茶作为健康食品提供理论依据,进而指导人们根据花茶的优点进行选购及饮用.[方法]在模拟人体胃液(pH为3.0,温度为37℃)条件下,研究5种花茶浸泡液对亚硝酸盐的清除能力和对亚硝胺合成的阻断能力,并与抗坏血酸(VC)进行比较.[结果]5种花茶中,桂花对亚硝酸钠的清除和对亚硝胺合成的阻断效果最好,百合花、康仙花、金盏花居中,菊花最差.桂花浸泡液对亚硝酸钠的最大清除率可达93.88％,对亚硝胺合成的阻断率最大达82.68％,分别相当于1.2 mg VC对亚硝酸钠的清除率和对亚硝胺合成的阻断率.[结论]花茶不仅具有美容养颜的功能,而且还对人体健康起着重要的作用.
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