期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 65, 期 5, 页码 1078-1085出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.6b04975
关键词
rhodamine B; oral bioavailability; HPLC-FLD; pharmacokinetics; biodistribution
资金
- Ministry of Science and Technology of Taiwan [MOST 105-2113-M-010-004]
- Taipei City Hospital, Taipei, Taiwan [TCH10301-62-021, TCH103-02]
The International Agency for Research on Cancer (IARC) demonstrated rhodamine B as a potential carcinogen in 1978. Nevertheless, rhodamine B has been illegally used as a colorant in food in many countries. Few pharmacokinetic and toxicological investigations have been performed since the first pharmacokinetic study on rhodamine B in 1961. The aims of this study were to develop a simple and sensitive high-performance liquid chromatography method with fluorescence detection for the quantitative detection of rhodamine B in the plasma and organs of rats and to estimate its pharmacokinetics and biodistribution. The results demonstrated that the oral bioavailabilities of rhodamine B were 28.3 and 9.8% for the low-dose and high-dose exposures, respectively. Furthermore, rhodamine B was highly accumulated in the liver and, to a lesser extent, the kidney, but was undetectable in the brain. These results provide useful information for improving the pharmacokinetics and biodistribution of rhodamine B, supporting additional food safety evaluations.
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