Department of Chemistry, University of Ibadan, Ibadan, Oyo State, Nigeria.
Basel Convention Coordinating Centre for Training and Technology Transfer for Africa Region, University of Ibadan, Ibadan, Oyo State, Nigeria.
Sci Rep. 2019 Nov 25;9(1):17458. doi: 10.1038/s41598-019-53790-2.
Bisphenol-A (BPA) is a synthetic chemical ubiquitous in the environment and listed as an endocrine disruptor. It has the tendency of migrating into food stored in materials containing it. This study, therefore, determines the concentrations of BPA in foods commonly consumed in Southwest Nigeria by the adult population and also estimates the risk associated with human exposure. Eight different food categories were selected for this study. Standard QuEChERS protocol was used for sample extraction and analysed using gas chromatography-mass spectrometry (GC-MS). Vegetable oil had the highest BPA concentration (28.4 ng/g). This was followed by aquatic canned fish (26.3 ng/g), canned beef (21.3 ng/g) and crayfish (17.5 ng/g). These concentrations were below the 600 ng/g limit of the European Commission for BPA in foods. Bisphenol-A was not detected in raw beef, chicken, cheese, apple, tomatoes, beans and rice; and chicken eggs. The adult population had an average dietary intake of 30.4 ng/kg bw/day. There is no likely occurrence of harmful health effects of BPA in the selected foods with respect to the current concentrations found therein. However, routine monitoring is recommended to prevent human exposure to BPA.
双酚 A（BPA）是一种普遍存在于环境中的合成化学物质，被列为内分泌干扰物。它有向含有它的材料中储存的食物中迁移的趋势。因此，本研究测定了尼日利亚西南部成年人常吃的 8 种不同食物中的 BPA 浓度，并评估了与人类接触相关的风险。本研究选用了标准的 QuEChERS 方法进行样品提取，并使用气相色谱-质谱联用仪（GC-MS）进行分析。植物油中的 BPA 浓度最高（28.4ng/g）。其次是水产罐头鱼（26.3ng/g）、罐头牛肉（21.3ng/g）和小龙虾（17.5ng/g）。这些浓度低于欧盟对食品中 BPA 的 600ng/g 限量。生牛肉、鸡肉、奶酪、苹果、西红柿、豆类和大米以及鸡蛋中均未检出 BPA。成年人的平均膳食摄入量为 30.4ng/kg bw/day。就目前发现的浓度而言，在所选择的食物中，BPA 不太可能对健康产生有害影响。然而，建议进行常规监测，以防止人类接触 BPA。
