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Open AccessArticle

Acute and Subchronic Oral Toxicity Study of Gardenia Yellow E500 in Sprague-Dawley Rats

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Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
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Fuling District Center for Disease Control and Prevention, Chongqing 408000, China
3
China National Center for Food Safety Risk Assessment, Beijing 100022, China
*
Authors to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(2), 531; https://doi.org/10.3390/ijerph17020531
Received: 10 December 2019 / Revised: 9 January 2020 / Accepted: 10 January 2020 / Published: 14 January 2020
(This article belongs to the Special Issue Toxicology and Public Health)
Objective: This study was conducted to evaluate the acute and subchronic toxicity of gardenia yellow, a natural colorant widely used in China and other Asian countries. An acute toxicity test was performed in S-D rats of both genders and the lethal dose (LD50) of per oral gardenia yellow was estimated to be more than 15.0 g/kg·bw. In the subchronic study, gardenia yellow was orally administered to rats by gavage at doses of 0, 0.50, 1.50 and 4.50 g/kg·bw/day for 90 days followed by a recovery period of 28 days. No appreciable toxic-related changes were observed in the 0.50 g/kg·bw/day group. When the animals received gardenia yellow at 1.50 g/kg·bw/day or more, body weight loss was observed, and pigments began to deposit in several vital organs, resulting in significant changes of several hematological and biochemical indicators related to the nutritional status of the body, liver and kidney function, more severe in the high dose group. In the recovery period, the alterations of the clinical symptoms and parameters were relieved a lot. Based on the results of the current study, the no observed adverse effect level (NOAEL) of gardenia yellow E500 in rats was set to be 0.50 g/kg·bw/day. View Full-Text
Keywords: gardenia yellow; colorant; Gardenia jasminoides; subchronic toxicity; no observed adverse effect level gardenia yellow; colorant; Gardenia jasminoides; subchronic toxicity; no observed adverse effect level
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Tang, X.; Wang, Y.; Yang, W.; Zheng, Y.; Liu, C.; Qu, M.; Xu, H.; Zhang, L.; Liang, J.; Fan, B. Acute and Subchronic Oral Toxicity Study of Gardenia Yellow E500 in Sprague-Dawley Rats. Int. J. Environ. Res. Public Health 2020, 17, 531.

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