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国内市场上罐装啤酒中双酚类物质迁出量调查

2012-09-12谢云飞汪何雅姚卫蓉

食品工业科技 2012年18期
关键词:检测

鲍 洋,谢云飞,汪何雅,钱 和,姚卫蓉

(江南大学食品安全与质量控制研究中心,江苏无锡214122)

国内市场上罐装啤酒中双酚类物质迁出量调查

鲍 洋,谢云飞,汪何雅,钱 和,姚卫蓉*

(江南大学食品安全与质量控制研究中心,江苏无锡214122)

建立并利用固相萃取-高效液相-荧光法对国内市场上31种罐装啤酒中双酚物的含量进行了调查。方法的检测限为0.02~0.09μg/L,在0.02~50.00μg/L的检测范围内相关系数大于0.99,加标回收率和标准差分别为80.67%~101%和1.01%~4.84%。 样品中除双酚E(BPE)没有检出外,双酚A(BPA)、双酚A二缩水甘油醚(BADGE)、双酚F二缩水甘油醚(BFDGE)、双酚B(BPB)和双酚F(BPF)的平均检出浓度分别为2.99、0.41、0.18、0.12、0.12μg/L,检出率分别为100%、83.9%、6.4%、12.9%和6.4%。BPA和BADGE是罐装啤酒中存在的最主要的双酚物,其平均每日摄入量分别估计为0.0160、0.0022μg/kg·bw·d,低于欧盟关于BPA 50μg/kg·bw·d的规定。 样品中BPA没有超过欧盟规定的0.6mg/L,BADGE的迁移也未高于9mg/L,但是BFDGE的检出是不允许的。目前尚无关于BPF、BPE和BPB的迁移限值。

固相萃取,高效液相-荧光法,罐装啤酒,双酚类物质

Abstract:The solid phase extraction followed by high performance liquid chromatography-fluorescence detection of six bisphenols was established and applied to investigated the levels of bisphenols in 31 canned beers purchased from Chinese markets.The method detection limits were 0.02~0.09μg/L and the method detection ranges were 0.02~50.00μg/L with correlation coefficients higher than 0.99.The recovery and the relative standard deviation were 80.67%~101%and 1.01%~4.84%,respectively.Expect Bisphenol E(BPE),Bisphenol A(BPA),Bisphenol A diglycidyl ether(BADGE),Bisphenol F diglycidyl ether(BFDGE),Bisphenol B(BPB) and Bisphenol F(BPF) were detected in samples with average concentrations of 2.99,0.41,0.18,0.12,0.12μg/L,seperately.And their corresponding detection rates were 100%,83.9%,6.4%,12.9%and 6.4%,respectively.The result suggested that BPA and BFDGE were the major bisphenols present in canned beers and their mean dietary intakes were estimated at 0.0160,0.0022μg/kg of body weight/day which was below the regulation of European Community(EC) on 50μg/kg BPA of body weight/day.The levels of BPA and BADGE did not exceed the regulations of EC.However,the presence of BFDGE was forbidden.In addition,there are no regulations on BPB,BPE or BPF.

Key words:solid phase extraction;high performance liquid chromatography-fluorescence detection;canned beers;bisphenols

罐装啤酒主要使用环氧树脂内涂层来保护罐体不受内容物的腐蚀[1]。环氧树脂主要由双酚A(BPA)和双酚F(BPF)合成;双酚A二缩水甘油醚(BADGE)和双酚F二缩水甘油醚(BFDGE)是合成反应中的原料和稳定剂[2-4];由于BPA的使用受到越来越严格的限制,作为其替代品,双酚E(BPE)和双酚B(BPB)同样可以用于生产树脂涂层[5-7]。上述双酚类物质都可能从食品包装中迁移至内容物,通过食物链进入人体[8]。研究发现,BPA有类激素活性、诱变性和急性毒性,它和许多疾病的发生(如糖尿病、心血管疾病)都存在一定的关系[9-12]。此外,BPB、BPE和BPF的化学结构与BPA相似,它们也可表现出与BPA类似的内分泌干扰作用[11,13-14]。……

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