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KMID : 1204320110270030235
Laboratory Animal Research
2011 Volume.27 No. 3 p.235 ~ p.244
Single- and repeated-dose toxicities of aloe fermentation products in rats
Cho Ju-Hyun

Kim Hyun-Kyoung
Baik Soon-Ok
Choi Soo-Young
Lee Jae-Young
Abstract
In this study, aloe fermentation products were derived from mycelia from 3 mushrooms: Ganoderma lucidum (AG), Hericium erinaceum (AH), and Phellinus linteus (AP). Levels of aloin A and B increased with fermentation time. The highest levels were measured on the fifth day of fermentation. ¥â-Glucan levels decreased with fermentation time. The safety of aloe fermentation products were examined in male and female Sprague-Dawley rats. Rats were orally administered the three aloe fermentation products at dose levels of 1, 2 or 5 g/kg for single-dose toxicity test and 0.5, 1, or 2 g/kg for repeated-dose toxicity test. There were no significant differences in body weight gain between vehicle control and AG-, AH- or AP-treated rats. Also, significant changes in daily feed intake and water consumption were not observed. In hematological analysis, none of the parameters were affected by aloe fermentation products with mushroom mycelia. This suggests that there are no negative effects on homeostasis and immunity. In blood biochemistry analysis, none of the markers were affected by feeding rats with AG, AH or AP. Similarly, there were no significant effects on markers for liver, kidney, skeletal and heart muscle functions. No remarkable lesions were observed in these organs at histopathology. Since there were no adverse effects of AG, AH and AP in single- or repeated-dose toxicity tests, even at higher doses than normal, we conclude that the aloe fermentation products with mushroom mycelia possess long-term safety and could be candidates as multifunctional nutrients for the improvement of intestinal function and immunity.
KEYWORD
Aloe fermentation, aloin, ¥â-glucan, Ganoderma lucidum, Phellinus linteus, Hericium erinaceum, single-dose toxicity test, repeated-dose toxicity, Sprague-Dawley rat
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