Assessment of melamine contamination in crop, soil and water in China and risks of melamine accumulation in animal tissues and products
Assessment of melamine contamination in crop, soil and water in China and risks of melamine accumulation in animal tissues and products
复制标题
中国农作物、土壤和水体三聚氰胺污染状况及动物组织和产品中三聚氰胺积累风险评估
DOI：
10.1016/j.envint.2010.03.006
复制
发表时间：
2010-07-01
影响因子：
11.8
通讯作者：
Zhang, Keying
中科院分区：
文献类型：
--
作者：
Qin, Yuchang;Lv, Xiaowen;Zhang, Keying
2008年9月，中国发生了三聚氰胺婴幼儿配方奶粉掺假事件，这一事件要求对环境和食品中的三聚氰胺污染程度以及食用受三聚氰胺污染的食品可能存在的风险进行评估。在这项工作中，我们对中国21个省份的水、土壤和作物样本进行了广泛的测试。对三聚氰胺工厂附近的土壤和废水进行了检测，废水和土壤样品中三聚氰胺的最高浓度分别为226.766和41.136 mg/kg。94个灌溉水样本中，有6个样本的三聚氰胺浓度为21-198 μ g/L，仅在距离三聚氰胺工厂150公里以外的124个农田样本中检出1个样本的三聚氰胺含量为176 μ g/L。在557个作物样本中，只有3个样本的三聚氰胺含量超过每公斤1毫克，其中一个小麦样本的三聚氰胺含量最高，为每公斤2.05毫克。在基础饲粮中添加2 mg/kg的三聚氰胺时，动物组织和产品中三聚氰胺的沉积量均低于122 μ g/kg。当饲粮中含有100 mg/kg的三聚氰胺时，三聚氰胺的沉积量要高得多（例如，鸡的肾脏中含有4483 μ g/kg的三聚氰胺），但在改用基础饲粮后的96小时内，发现所有动物的三聚氰胺沉积量都完全耗尽。我们的工作可能对规范三聚氰胺的生产和监测食品和动物产品的安全有价值。(C) 2010 Elsevier Ltd.版权所有。
The scandal of melamine-adulterated infant formula in China in September 2008 demanded the need to assess the extent of melamine contamination in the environment and food products and possible risks of consuming melamine-contaminated diets. In this work, our extensive work tested water, soil and crop samples from 21 provinces in China. Soils nearby and waste waters from melamine-manufacturing factories were examined, and the highest melamine concentrations in waste water and soil samples were 226.766 and 41.136 mg/kg, respectively. Six of 94 irrigation water samples had melamine at a concentration of 21-198 mu g/L Only 1 sample collected from 124 farmlands farther than 150 km from melamine factories was detected for melamine at a content of 176 mu g/L. Only 3 out of 557 crop samples contaminated more than 1 mg/kg melamine, with the highest level of 2.05 mg/kg in a wheat sample. When basal diets contained 2 mg/kg melamine were fed to various animals, deposition of melamine in animal tissues and products was all lower than 122 mu g/kg. The melamine deposition was much higher (e.g., 4483 mu g/kg in the kidney of chicken) when diets contained 100 mg/kg melamine but was found to be completely depleted after 96 h for all animals after switching to the basal diets. Our work may be valuable to regulate melamine production and monitor the safety of food and animal products. (C) 2010 Elsevier Ltd. All rights reserved.