a Department of Food Animal Clinics, Faculty of Veterinary Medicine , Chiang Mai University , Mae Hia , Chiang Mai Province, 50100 , Thailand.
Food Addit Contam Part B Surveill. 2012;5(2):145-9. doi: 10.1080/19393210.2012.681072. Epub 2012 May 10.
Aflatoxin M1 (AFM1) levels were determined in pasteurised milk from five commercial trademarks produced in different areas in Thailand. One hundred and twenty milk samples were collected from local markets in Chiang Mai province, Thailand, to evaluate AFM1 concentrations using immunoaffinity columns and high-performance liquid chromatography with fluorescence detection. The overall median AFM1 level was 0.023 µg L(-1) ranging from 0.004 to 0.293 µg L(-1). All trademarks had average AFM1 concentrations lower than 0.05 µg L(-1), with those in Trademarks 3 to 5 being higher than Trademarks 1 and 2 (P < 0.01). All trademarks had different seasonal patterns of AFM1, even though operating in the same area. However, only Trademark 3 showed significant differences of AFM1 levels between seasons. The results suggested that farm management factors, rather than environment factors, were likely to be the main cause of AFM1 contamination in dairy products.
检测了泰国五个不同地区生产的巴氏消毒奶中的黄曲霉毒素 M1（AFM1）水平。从泰国清迈省的当地市场采集了 120 份牛奶样本，使用免疫亲和柱和带有荧光检测的高效液相色谱法评估 AFM1 浓度。总体中位数 AFM1 水平为 0.023μg/L，范围为 0.004 至 0.293μg/L。所有商标的平均 AFM1 浓度均低于 0.05μg/L，商标 3 至 5 的浓度高于商标 1 和 2（P<0.01）。尽管在同一地区运营，但所有商标的 AFM1 季节性模式都不同。然而，只有商标 3 显示出 AFM1 水平在季节之间存在显著差异。结果表明，农场管理因素而不是环境因素可能是导致乳制品中 AFM1 污染的主要原因。
