Bisphenol A (BPA) in liquid portions of canned foods obtained from domestic and Asian markets in the United States

A. Joiakim, David J. Kaplan, D. Putt, J. Santos, K. Friedrich, So H. Kim, Hyesook Kim
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引用次数: 2

Abstract

Bisphenol A (BPA) is a phenolic environmental estrogen that disrupts endocrine activity thereby increasing the risk of hormone-related health problems. The human population is highly exposed to BPA and food is believed to be a primary source of BPA exposure. The aim of this study was to test the sensitivity and specificity of a BPA enzyme-linked immunosorbent assay (ELISA) and to measure levels of BPA in supernatants obtained from various canned foods from different countries. The concentration of BPA was measured in supernatant from different types of canned soup and vegetable mixes produced by US companies and two companies each from three different Asian countries (Korea, Japan and China), which are available at markets in the USA. ELISA results were confirmed by LC/MS/MS and shown to be in agreement. Cross-reactivity tests demonstrated that BPA ELISA kit does not cross-react with other tested phenolic compounds. There was no significant difference of BPA levels in different types of soups from different US companies. However, levels of BPA in supernatants of canned vegetable mixes of a company in the USA were 200-fold lower than the levels in canned vegetable soups of the US companies. BPA levels varied greatly among canned foods among companies in various countries. Thus, this study validated the use of a simple ELISA assay to measure levels of BPA in supernatants of canned food, which would facilitate the routine monitoring of dietary exposure to BPA. Decreasing the consumption of BPA will lead to a reduction in the risk of adverse health effects.
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从美国国内和亚洲市场获得的罐装食品液体部分中的双酚A (BPA)
双酚A (BPA)是一种酚类环境雌激素,会扰乱内分泌活动,从而增加激素相关健康问题的风险。人类高度暴露于双酚a,食物被认为是双酚a暴露的主要来源。本研究的目的是测试双酚a酶联免疫吸附试验(ELISA)的敏感性和特异性,并测量来自不同国家的各种罐头食品的上清液中双酚a的水平。BPA的浓度是在不同类型的罐头汤和蔬菜混合物的上清液中测量的,这些汤和蔬菜混合物分别由美国公司和来自三个不同亚洲国家(韩国、日本和中国)的两家公司生产,这些公司在美国市场上有售。ELISA结果经LC/MS/MS验证,结果一致。交叉反应试验表明,双酚a ELISA试剂盒不与其他被测酚类化合物交叉反应。美国不同公司生产的不同种类的汤中BPA的含量没有显著差异。然而,美国一家公司的罐头蔬菜混合物上清液中的BPA含量比美国公司的罐头蔬菜汤中的含量低200倍。不同国家不同公司的罐头食品中BPA的含量差别很大。因此,本研究验证了使用简单的ELISA法测量罐头食品上清液中双酚a的水平,这将有助于常规监测饮食中双酚a的暴露。减少双酚a的摄入将减少对健康产生不利影响的风险。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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