莞香茶对亚硝酸盐的清除效率研究  

Study on Nitrite-scavenging Ability of Guan Xiang Tea

作　　者：梁婧瑶 谢宇荀 赖成泽 黄师敏 黄娟 李林秋 LIANG Jing-yao;XIE Yu-xun;LAI Cheng-ze;HUANG Shi-Min;HUANG Juan;LI Lin-qiu(School of Public Health,Guangdong Medical University,Guangdong Dongguan 523808;Dongguan Key Laboratory of Environmental Medicine,Guangdong Dongguan 523808;China Foods Detection and Research Institute Co.,Ltd.,Guangdong Dongguan 523808,China)

机构地区：[1]广东省东莞市广东医科大学公共卫生学院,广东东莞523808 [2]广东省东莞市东莞市环境医学重点实验室,广东东莞523808 [3]广东省东莞市中食检测研究院有限公司,广东东莞523808

出　　处：《广州化工》2019年第14期89-91,共3页GuangZhou Chemical Industry

基　　金：广东医科大学博士启动项目(B2017022),广东医科大学大学生创新实验项目(ZYDG004);国家大学生创新创业训练计划项目(201810571021);南海海洋生物医药资源研发公共服务平台2018年开放性课题

摘　　要：以东莞特有的莞香茶为研究对象,在体外模拟胃液环境中(pH=3,37℃)研究不同冲泡条件对莞香茶清除亚硝酸盐能力的影响,并比较其与八种常见发酵/半发酵茶清除亚硝酸盐的能力。结果表明,莞香茶清除亚硝酸盐能力显著——在最佳冲泡条件(温度为100℃、时间为5min)下,其对亚硝酸盐的清除率为74.80%,优于其他8种发酵/半发酵茶。该工作为莞香茶的科学饮用提供理论依据,同时也为莞香茶的开发与推广奠定理论基础。The nitrite-scavenging ability of Guan Xiang tea was studied under simulate gastric juice (pH=3,37 ℃) in vitro.The effects of brewing conditions on the clearance rate were investigated.Under the optimized conditions,the clearance capacity of Guan Xiang tea was compared with the other eight types of fermented/semi-fermented tea.The results showed that compared to the other types of fermented/semi-fermented tea,Guan Xiang tea showed the best ability on nitrite scavenging under the optimum conditions (brewing temperature was 100 ℃,and brewing time was 5 min) with clearance rate of 74.80%.This work not only provided theory gist for scientific drink of Guan Xiang tea,but also offered a theoretical basis to its development and promotion.

关 键 词：莞香茶 亚硝酸盐清除能力 模拟胃液 清除率 

分 类 号：N34[自然科学总论]