Migration of Bisphenol A from Can Coatings to Liquid Infant Formula during Storage at Room Temperature
Migration of Bisphenol A from Can Coatings to Liquid Infant Formula during Storage at Room Temperature
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DOI：
10.4315/0362-028x-72.12.2571
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发表时间：
2009-12-01
影响因子：
2
通讯作者：
Popovic, Svetlana
中科院分区：
文献类型：
--
作者：
Cao, Xu-Liang;Corriveau, Jeannette;Popovic, Svetlana
关于双酚A（BPA）在室温下储存期间从罐头涂料迁移到食品的信息非常有限，现有研究的结论并不总是一致的。为了研究室温下储存时间对BPA从罐涂层迁移到液体婴儿配方奶粉的影响，在室温下储存10个月后，对来自不同罐但与先前分析BPA的批次相同的21个罐装液体婴儿配方奶粉产品样品再次进行BPA分析。在室温下10个月的储存期间，21种产品中有9种观察到BPA从罐涂层向液体配方的额外迁移，BPA水平增加了29.8%至110%。2007年和2008年的结果之间的显着差异（P = 0.026），观察到只有一个品牌的产品，其中有最低的BPA水平在2007年的调查。2008年分析的牛奶配方产品中BPA含量（平均值为6.8纳克/克）显著高于（P = 0.00023）高于2007年分析的奶基配方产品（平均值为5.0 ng/g），而2008年分析的大豆配方产品之间的BPA水平差异（平均值，5.3纳克/克）和2007年分析的结果（平均值，5.8纳克/克）不显著（P = 0.097）。没有观察到产品有效期和BPA从罐涂层迁移的水平之间存在明显的相关性。
Information on migration of bisphenol A (BPA) from can coatings to foods during storage at room temperature is very limited, and the conclusions from the available studies are not always consistent. To investigate the effect of storage time on BPA migration from can coatings to liquid infant formula at room temperature, samples of 21 canned liquid infant formula products from different cans but the same lot as those analyzed for BPA previously were analyzed for BPA again after storage at room temperature for 10 months. Additional migration of BPA from can coatings to liquid formula during the 10-month storage period at room temperature was observed for 9 of the 21 products, with increases in BPA levels ranging from 29.8 to 110%. Significant differences between the 2007 and 2008 results (P = 0.026) were observed for only one brand of product, which had the lowest BPA levels in the 2007 survey. The BPA levels in the milk-based formula products analyzed in 2008 (mean, 6.8 ng/g) were significantly higher (P = 0.00023) than those in the milk-based formula products analyzed in 2007 (mean, 5.0 ng/g), whereas the differences in BPA levels between the soya-based formula products analyzed in 2008 (mean, 5.3 ng/g) and those analyzed in 2007 (mean, 5.8 ng/g) were not significant (P = 0.097). No obvious correlation between the product expiration date and the level of BPA migration from can coatings was observed.