内蒙古饮茶型氟中毒病区居民砖茶中氟和茶多酚含量调查  

Contents of fluoride and tea polyphenols in brick tea at fluorosis regions in Inner Mongolia

作　　者：梁丽娜[1] 张锦慧[1] 于光前[1] 

机构地区：[1]哈尔滨医科大学中国疾病预防控制中心地方病控制中心地氟病防治研究所卫生部病因流行病学重点实验室黑龙江省普通高校病因流行病学重点实验室,150081

出　　处：《中华地方病学杂志》2014年第3期331-334,共4页Chinese Journal of Endemiology

摘　　要：目的了解内蒙古饮茶型氟中毒病区居民砖茶中氟和茶多酚含量及氟含量合格砖茶的使用情况。方法选取陈巴尔虎旗和鄂温克旗两个地区作为调查点。在陈巴尔虎旗选择4个村的72户居民，在鄂温克旗选择3个村的ll户居民作为调查对象。采集每户的砖茶样品，测定氟和茶多酚含量。砖茶氟含量测定采用离子选择电极法，砖茶中茶多酚含量测定采用福林酚氧化分光光度计法。采用t检验、线性相关进行统计分析。结果氟含量合格砖茶茶氟平均值为171．78mg／kg，范围为114．82～290．23mg／kg：茶多酚含量平均值为95．44g／kg，范围为56．15～132．18g／kg；茶氟含量不合格砖茶茶氟平均值为459．86mg／kg，范围为304．71—660．76mg／kg；茶多酚含量平均值为67．48g／kg，范围为36．03～102．15g／kg。合格砖茶茶多酚含量显著高于不合格砖茶（P〈0．05）；砖茶氟含量与茶多酚含量具有负相关关系（r=-0．636，P〈0．05），砖茶中茶多酚平均是氟含量的396倍，病区居民合格砖茶使用率为53．0％（44／83）。结论饮茶型氟中毒病区合格砖茶氟含量明显低于不合格砖茶，茶多酚明显高于不合格砖茶，合格砖茶使用率不高，应进一步加强防治措施落实进度。Objective To determine the contents of fluoride and tea polyphenols in brick-tea and to understand the utilization ratio of qualified brick-tea in fluorosis regions in Inner Mongolia. Methods The investigation was carried out in Chenbaerhuqi Country and Ewenkeqi Country. Seventy-two households of four villages in Chenbaerhuqi and 11 households of three villages in Ewenkeqi were selected as study subjects. The brick-tea in each household was sampled. The contents of fluoride and tea polyphenols were determined by using fluoride selective electrode method and Forint-Ciocalteu oxidation method, respectively. T test and linear correlation were used to analyze the data. Results The fluoride content in qualified brick tea ranged from 114.82 mg/kg to 290.23 mg/kg with an average value of 171.78 mg/kg, while tea polyphenols content was between 56.15 g/kg and 132.18 g/kg with an average value of 95.44 g/kg. In unqualified brick-tea, the average fluoride content was 459.86 mg/kg with the range from 304.71 mg/kg to 660.76 mg/kg and the average of tea polyphenols was 67.48 g/kg with the range from 36.03 g/kg to 102.15 g/kg. The content of tea polyphenols of qualified brick tea was significantly higher than that of unqualified brick tea （P 〈 0.05）. The content of tea polyphenols was negatively correlated with fluoride content（r = - 0.636, P 〈 0.05）. The content of tea polyphenols was 396 times more than that of fluoride in brick tea. The utilization ratio of qualified brick-tea in the investigation areas was 53.0% （44/83）. Conclusion The fluoride content in qualified brick-tea was less than unqualified brick-tea, and the tea polyphenols of qualified brick-tea was higher than the unqualified brick-tea. The utilization rate of qualified brick tea is not high and further actions are needed to be taken to supply more qualified brick-tea for controlling of drinking brick-tea type fluorosis.

关 键 词：砖茶 氟 茶多酚 

分 类 号：R599[医药卫生—内科学]