兰州市市售面粉中过氧化苯甲酰含量的监测与评价

Monitoring and evaluation of benzoicperoxide content in flour selling in Lanzhou

目的：为了掌握兰州市经销的面粉中过氧化苯甲酰的添加情况,为有关部门加强对面粉生产企业的监督管理提供依据。方法：采用优化后的气相色谱检测方法,对2008年兰州市经销的53份不同品牌的面粉中过氧化苯甲酰的添加情况进行了监测。结果：本次抽检面粉中BPO的检出范围为0～0.052 g/kg,34份面粉添加了过氧化苯甲酰,添加率为64.15%,但均未超标。其中特一粉和牛肉拉面粉的添加率较高,分别为78.57%和75.00%,而普通小麦粉的添加率低于平均水平。结论：兰州市市售面粉中过氧化本甲酰的添加情况符合国家相关要求,今后应近一步加强优化。

Objective：To investigate the situation of adding the benzoicperoxide （BPO） in flour in Lanzhou City to provide a basis for strengthening supervision and management to flour enterprises by the relevant departments. Methods： BPO in 53 different brands of flour in Lanzhou City were monitored by optimized GC methods in 2008. Results： BPO in these samples was detected in range of 0 - 0. 052 g/kg, of wich 34 samples were detected having added BPO, accounting for 64. 15% , but none exceed the criteria. Add rates in a special flour and beef noodle flour are higher, respectively 75.00% and 78.57% , while the level of ordinary flour was lower than the average. Conclusion：The situation of BPO in flour in Lanzhou City is good, expecting to strengthen further optimization.