BS PD CEN/TR 15298-2006 食品.真菌毒素分析的抽样粉碎.干磨和泥浆混合的对比

标准号：BS PD CEN/TR 15298-2006
中文标准名称：食品.真菌毒素分析的抽样粉碎.干磨和泥浆混合的对比
英文标准名称：Foodstuffs — Sample comminution for mycotoxins analysis — Comparison between dry milling and slurry mixing
标准类型：X04
发布日期：2006/10/31 12:00:00
实施日期：2006/10/31 12:00:00
中国标准分类号：X04
国际标准分类号：67.050
适用范围：A comparison was made between dry milling and slurry mixing as comminution step preceding mycotoxinsanalysis. Such in respect to EC legislation that consists of sample schemes up to 30 kg. Cacao, green coffee,almonds and pistachio samples of 10 kg were milled by a RAS mill and all three sub-samples were completelyanalysed for aflatoxin B1 or Ochratoxin A. The differences in analytical results are explained by measurementsof particle size distributions of both milling types. The obtained data are compared with literature data oncoefficients of variation (CV) for various milling procedures. For dry milling CV values were generally notbelow 20 % for aflatoxin B1 levels up to 38 μg/kg in peanuts, whereas slurry mixing could achieve CV valuesbelow 5 % at aflatoxin B1 levels down to 4 μg/kg in pistachios. Measurements also showed possible differencein mycotoxin content of a sample between both milling types. This could lead to false positive or negativeresults when rejecting or accepting a lot, as this is based on the sample result. It was concluded that slurriescontain smaller particles than dry milled samples and thus generate the lowest possible CV values which inturn leads to better sample homogenisation.