Research on Acute and Subacute Toxicity Evaluation of Liupao Tea

WU Wenliang, LIN Yong, LIU Zhonghua, HUANG Jian'an, LONG Zhirong, TENG Cuiqing, MA Shicheng, QIU Ruijin, CAO Zhonghuan

Journal of Tea Science ›› 2017, Vol. 37 ›› Issue (2) : 173-181.

PDF(827 KB)
PDF(827 KB)
Journal of Tea Science ›› 2017, Vol. 37 ›› Issue (2) : 173-181.

Research on Acute and Subacute Toxicity Evaluation of Liupao Tea

  • WU Wenliang1,2,3,6, LIN Yong1,2,3,*, LIU Zhonghua1,2,3, HUANG Jian'an1,2,3, LONG Zhirong4,5, TENG Cuiqing4,5, MA Shicheng4,5, QIU Ruijin4,5, CAO Zhonghuan4,5
Author information +
History +

Abstract

Liupao tea has a long history and is characterized as famous agricultural products of Guangxi, but the study of its safety is not enough. In order to verify the safety, the main physicochemical components of Liupao tea from Wuzhou were measured by conventional test method of national standard, then, the acute and subacute toxicities of Liupao tea were systemically studied in accordance with the procedures for toxicological assessment on food safety. The experimental results showed that, the physicochemical indexes of Liupao tea were repeatable, which were followed with Guangxi local standards in the acute toxicity test. Using bliss method, the calculated median lethal dose (LD50) of Liupao tea was 9.38 g·kg-1 with 95% confidence interval (8.43~10.44 g·kg-1), which was higher than acute toxicity criteria (5 g·kg-1). In the subacute study, compared with the control group, no death or clinical signs, or abnormally hematological, biochemical and histopathological changes were found in either groups of rats receiving daily oral gavage of Liupao tea. The three dose treatments were 0.47, 0.94 and 1.88 g·kg-1·d-1 for 30 days (P>0.05). Thus, Liupao tea products belong to the actual non-toxic grade and fulfill the requirements of food safety according to the food toxicology standards.

Key words

acute toxicity / median lethal dosage / subacute toxicity / Liupao tea

Cite this article

Download Citations
WU Wenliang, LIN Yong, LIU Zhonghua, HUANG Jian'an, LONG Zhirong, TENG Cuiqing, MA Shicheng, QIU Ruijin, CAO Zhonghuan. Research on Acute and Subacute Toxicity Evaluation of Liupao Tea[J]. Journal of Tea Science. 2017, 37(2): 173-181

References

[1] 龙志荣, 马士成, 梅宇, 等. 六堡茶产业市场形势分析报告[J]. 广东茶业, 2013(3): 23-27.
[2] 刘勤晋, 陈文品, 白文祥, 等. 普洱茶急性毒性安全性评价研究报告[J]. 茶叶科学, 2003, 23(2): 141-145.
[3] 马伟光, 黄之镨, 游文龙, 等. 配方普洱茶的急性毒性研究[J]. 茶叶科学, 2010, 30(1): 9-12.
[4] 龚加顺, 陈文品, 周红杰, 等. 云南普洱茶特征成分的功能与毒理学评价[J]. 茶叶科学, 2007, 27(3): 201-210.
[5] 肖文军, 傅冬和, 任国谱, 等. 茯茶毒理学试验报告[J]. 茶叶科学, 2007, 27(4): 307-310.
[6] 刘子音, 王远亮, 许爱清. “金花” 菌食品安全性毒理学评价[J]. 农产品加工学刊, 2011(7): 29-32.
[7] 覃良, 黄宇声, 刘冠萍. 六堡茶毒性研究[J]. 中国民族民间医药杂志, 2013(3): 39-40.
[8] 中华人民共和国卫生部. 保健食品检验与评价技术规范[Z]. 卫法监发 [2003] 42号. 2003.
[9] 陈仁惇. 营养保健食品[M]. 北京:中国轻工业出版社, 2006.
[10] 徐叔云, 卞如濂, 陈修. 药理实验方法学[M]. 2版. 北京: 人民卫生出版社, 1991.
[11] 纪云晶. 实用毒理学手册[M]. 北京: 中国环境科学出版社, 1991.
[12] 袁伯俊, 王治乔. 新药临床前安全性评价与实践[M]. 北京: 军事医学科学出版社, 1997.
[13] 陆益, 杨帆, 梁宁生, 等. 茶多酚毒理学实验研究[J]. 广西医科大学学报, 2005, 22(6): 831-834.
[14] 陈亮延, 吴永方. 茶色素毒理学研究[J]. 武汉职工医学院学报, 1996, 24(4): 25-27.
[15] 黄旭, 李晨曦, 汪越, 等. 咖啡因对大鼠海马神经元形态学的影响[J]. 解剖科学进展, 2014(1): 5-8.
[16] 张栩颜, 黄宇声, 刘冠萍, 等. 六堡茶对高脂血症小鼠血脂及脂质过氧化的影响[J]. 医学理论与实践, 2013, 26(5): 563-564.
[17] 黄宇声, 张栩颜, 刘冠萍, 等. 六堡茶降脂作用试验研究[J]. 中国保健营养: 下半月, 2013(3): 875-876.
PDF(827 KB)

Accesses

Citation

Detail

Sections
Recommended

/