涂漆筷子中高锰酸钾消耗量的风险调查

Investigation on the risk of potassium permanganate consumption in painted chopsticks

中文关键词:  涂漆筷子  高锰酸钾消耗量  预处理

英文关键词:painted chopsticks  potassium permanganate consumption  pretreatment

中文摘要:

      目的 调查市售涂漆筷子中的高锰酸钾消耗量的风险。方法 参照GB 31604.2-2016《食品安全国家标准 食品接触材料及制品高锰酸钾消耗量的测定》, 采用滴定法对15个批次涂漆筷子高锰酸钾消耗量进行测定, 并探究水煮、高温烘烤、多次清洗等预处理方式对涂漆筷子的高锰酸钾消耗量的影响。结果 在15批次涂漆筷子中, 仅有3批次样品的高锰酸钾消耗量小于10 mg/kg, 其余80%的样品均超出参考限量值, 最高达到参考限量值的8倍。并且超标严重的样品在测试过程中出现涂漆层脱落的情况。经高温处理的样品高锰酸钾消耗量减少最为明显。结论 通过对15批次涂漆筷子中高锰酸钾消耗量的检测, 发现该产品高锰酸钾消耗量的风险极大, 应引起监管部门的高度重视。同时建议消费者在使用新购买的涂漆筷子前, 对其高温烘烤或阳光暴晒一段时间, 减小安全隐患。

英文摘要:

      Objective To investigate the risk of the potassium permanganate consumption in painted chopsticks. Methods According to the detection method of GB 31604.2-2016 National food safety standard-Food contact materials and products-Determination of potassium permanganate consumption, the potassium permanganate consumption of 15 batches of painted chopsticks was determined by titration method, and the influence of pretreatment methods such as boiling, high temperature baking and multiple cleaning on the potassium permanganate consumption of painted chopsticks was studied. Results Only 3 batches of the 15 batches had a consumption of potassium permanganate less than 10 mg/kg. The remaining 80% exceeded the reference limit value, and the maximum was 8 times of the reference limit. In addition, the paint layer of the samples severely exceeding the standard fell off during the test. The consumption of potassium permanganate in the sample after high temperature treatment had the most obvious reduction. Conclusion Through the detection of the consumption of potassium permanganate in 15 batches of painted chopsticks, it is found that the risk of potassium permanganate consumption of this product is great, which should be paid great attention by the regulatory authorities. At the same time, it is recommended that consumers bake or expose the newly purchased painted chopsticks to the sun for a period of time before using them, so as to reduce the potential safety hazards.