Toxicological and Nutraceutical Assessments of Peanut Sprouts As Daily Supplements to Feed Sprague

Toxicological and nutraceutical assessments of peanut sprouts as daily supplements to feed Sprague-Dawley rats for 18 weeks

Journal of the Science of Food and Agriculture
Volume 88, Issue 12, Date: September 2008, Pages: 2201-2207

Bo-Si Lin 1, Tu-Fa Lien 2, Mao-Rong Chao 3, Tzu-Yuan Lai 1, Ju-Chun Chang 1, Shieh-Jen Chou 3, Hui-Fen Liao 4, Robin Y-Y Chiou 1 *

1Department of Food Science, National Chiayi University, Chiayi 60083, Taiwan
2Department of Animal Science, National Chiayi University, Chiayi 60083, Taiwan
3Department of Veterinary Medicine, National Chiayi University, Chiayi 60083, Taiwan
4Department of Biochemical Science and Technology, National Chiayi University, Chiayi 60083, Taiwan



BACKGROUND: Peanut sprouts are occasionally consumed by peanut farmers. To investigate the possibility of introducing peanut sprouts as a functional vegetable to the public, an in vivo experiment involving toxicological and nutraceutical assessments was conducted.


RESULTS: Sixty female Sprague-Dawley rats (8 weeks old) were fed with peanut sprouts as a dietary supplement for 18 weeks. The rats were divided into five groups and fed with different daily supplements, namely 0 g (control), 16.5, 10 or 6 g of sprouts or 2.4 g of kernels. Aflatoxin contents of the sprouts (n = 24) were less than 1 µg kg-1. Body weights of all rats increased with feeding time, and final body weights differed insignificantly among test groups (P > 0.05). Weights of liver, kidney and spleen and organ/body weight ratios varied insignificantly among test groups (P > 0.05). All serum and blood cell determinations differed insignificantly (P > 0.05) among test groups, apart from the observation of a significant lowering of serum triacylglycerol (TG) level in the 10 g sprout group (P < 0.05).


CONCLUSION: In general, no obvious growth hazard or health toxicity was detected. For nutraceutical development, the lowering of serum TG level achieved by appropriate intake of peanut sprouts is noteworthy.

Note from SproutNet:  High triacylglycerol (TG) levels are associated with increased risk of coronary artery disease.