title: Evaluation of acute toxicity potential of water hyacinth leaves.
abstract: Although higher protein yield per hectare of water hyacinth than that of soy, high protein content of its leaves and good essential amino acid pattern have been proven, its dietary toxicity for human or animal consumption has not yet been evaluated. Therefore, the acute toxicity of water hyacinth leaves has been evaluated by an animal feeding test. The concentrations of common toxic metals including cadmium, lead, platinum, palladium, tin, mercury, barium, silver, stibium and aluminum in the water hyacinth leaf powder (WHLP) used for the animal feeding test were within their maximum limits in food additives as reported by the World Health Organization. The median lethal dose (LD50) of WHLP was more than 16 g kg(-1) body weight. In the study, after feeding for 7 and 28 days, the body weight of all the mice increased. The results of hematological analysis, clinical biochemical analysis, histopathological evaluation, general dissection or investigations of internal organs, appearance and behavior observations did not indicate any adverse effects from the diet containing WHLP. It is therefore concluded that water hyacinth leaves are not acutely toxic.
authors.affiliation: College of Food Science, Southwest University, Beibei, Chongqing, People's Republic of China wbwu62@yahoo.com.
authors.forename: Wenbiao
authors.initials: W
authors.lastname: Wu
authors.affiliation: College of Food Science, Southwest University, Beibei, Chongqing, People's Republic of China.
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Guo
authors.affiliation: College of Food Science, Southwest University, Beibei, Chongqing, People's Republic of China.
authors.forename: Mingliang
authors.initials: M
authors.lastname: Huang
mesh_terms: D000818:Animals; D001835:Body Weight / Q000187:drug effects; D031806:Eichhornia / Q000633:toxicity*; D005260:Female; D007668:Kidney / Q000187:drug effects; D007928:Lethal Dose 50; D008099:Liver / Q000187:drug effects; D008297:Male; D051379:Mice; D009929:Organ Size / Q000187:drug effects; D010936:Plant Extracts / Q000633:toxicity*; D018515:Plant Leaves / Q000633:toxicity*; D013154:Spleen / Q000187:drug effects
chemical_list: D010936:Plant Extracts