標準號：BS PD CEN/TR 15298-2006
中文標準名稱：食品.真菌毒素分析的抽樣粉碎.干磨和泥漿混合的對比
英文標準名稱：Foodstuffs — Sample comminution for mycotoxins analysis — Comparison between dry milling and slurry mixing
標準類型：X04
發(fā)布日期：2006/10/31 12:00:00
實施日期：2006/10/31 12:00:00
中國標準分類號：X04
國際標準分類號：67.050
適用范圍：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.