美国牛肉和奶牛肝脏中的聚乙 (PBDE) 含量,并与配对脂肪样本进行比较
1Agricultural Research Service, U.S. Department of Agriculture, Edward T. Schafer Agricultural Research Center, Fargo, ND, USA.
概括
在牛肉和奶牛肝脏中发现了聚化二乙烯 (PBDE),肝脏和脂肪组织之间的水平有所不同. 通过牛肝估计了消费者暴露,突出了这些阻燃剂的潜在饮食风险.
科学领域:
- 环境化学环境化学
- 食品安全 食品安全
- 毒理学 毒理学 毒理学
背景情况:
- 化阻燃剂,特别是聚化二乙烯 (PBDE),是环境污染物.
- 食品,包括牛肉和乳制品,可以积累PBDE,导致人类通过饮食暴露.
研究的目的:
- 分析牛肉和奶牛肝脏中的聚二乙烯 (PBDE) 同源的概况和度.
- 为了比较肝脏和脂肪组织之间的PBDE水平和同源蛋白质概况.
- 通过牛肝消费来估计消费者对PBDE的暴露.
主要方法:
- 收集和分析54个牛肝和14个奶牛肝的PBDE.
- 与之前发表的配对脂肪样本比较PBDE同源的概况和度.
- 基于牛肝消费的美国消费者的PBDE平均每日摄入量计算.
主要成果:
- 肝脏中的PBDE平均度为54.03ppgg-1湿重,范围从4.92到426.67ppg-1 ww.
- BDE47,BDE99和BDE153是最为丰富的PBDE类原体.
- 肝脏和脂肪中的PBDE度没有显著的相关性;BDE99在肝脏中较低,而BDE153与脂肪相比较高.
结论:
- 牛肝中存在PBDE污染,与脂肪相比,其同源性概况不同.
- 通过饮食暴露在牛肝消费中的PBDE对美国消费者来说是一个潜在的担忧.
- 需要进一步的研究来了解PBDE在不同组织中的生物积累和毒理影响.
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