Release of Bisphenol A from Food Can Lining upon Heating.

Abstract

Nine different food cans, packed with water, were heat-treated for 30 min at 80 or 100°C in order to elucidate the trends associated with the leaching of bisphenol A (BPA) from internal coatings. Low levels of BPA were detected in water from all unheated cans, rising to 0.06 to 32 ng/cm 2 after heating at 100°C. Reducing the heat-treatment temperature to 80°C was found to reduce the BPA concentration in the contained water by up to two-thirds. The cans that recorded the highest BPA concentrations in water after heating were found to have components (lid, bottom or body) with high available BPA contents.

NTP‐CERHR expert panel report on the reproductive and developmental toxicity of bisphenol A

“…Compared to cans filled with water, increased amounts of bisphenol A migrated from cans filled with 1-10% sodium chloride, 5-20% glucose, or vegetable oils and heated to 1211C. Takao et al (2002) reported increased leaching of bisphenol A from cans into water when the cans were heated to Z801C.…”

Development of sensitive direct and indirect enzyme-linked immunosorbent assays (ELISAs) for monitoring bisphenol-A in canned foods and beverages

“…According to the thermal degradation pathway of BPA polycarbonate and the environmental fate of BPA, 4-CP, BPA, and phenols were the most suspected residues in canned foods [27][28][29][30]. Therefore, the specificity of the antibody and of the ELISA was determined by the crossreactivity studies with 11 structural analogues of BPA including the degradation products: PP, 4-CP, diOH-BP, hexestrol, DES, BPF, BPS, 4,4′-thiodiphenol, BPA-butyrate, BPA-valerate, and 4-hydroxybenzoic acid ( Table 2).…”

How Safe Are Our Babies? an in-Sight on Effect of Bisphenol a (Bpa) on Development

“…Heat catapults the dissolution of DPA in the packed food in BPA coated food containers. 27 Preservation of canned foods by heating at 100 o C leads to an increased concentration of BPA estimated to be 1.7-55.4 times the normal concentration.…”