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BPA has been found to interact with a diverse range of hormone receptors, in both humans and animals. [77] It binds to both of the nuclear estrogen receptors (ERs), ERα and ERβ. BPA is a selective estrogen receptor modulator (SERM), or partial agonist of the ER, so it can serve as both an estrogen agonist and antagonist.
In the United States, the growing concern over BPA exposure in infants in recent years has led the manufacturers of plastic baby bottles to stop using BPA in their bottles. The FDA banned the use of BPA in baby bottles and sippy cups (July 2012) as well as the use of epoxy resins in infant formula packaging. [204]
Studies have shown that at temperatures above 70 °C, and high humidity, polycarbonate will hydrolyze to bisphenol A (BPA). After about 30 days at 85 °C/96% RH, surface crystals are formed which for 70% consisted of BPA. [34] BPA is a compound that is currently on the list of potential environmental hazardous chemicals.
If we are what we eat, we certainly are what we drink. ... Their cans are BPA-free and contain ultra-filtered water that is sourced regionally, so that each can is never sold more than 500 miles ...
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The primary building block of polycarbonates, bisphenol A (BPA), is an estrogen-like endocrine disruptor that may leach into food. [46] Research in Environmental Health Perspectives finds that BPA leached from the lining of tin cans, dental sealants and polycarbonate bottles can increase the body weight of lab animals' offspring. [48]
6. Other Expired Pantry Staples. While you're examining your spices, check up on other easily overlooked items like flour, canned goods, baking powder, and cooking oil.
These resins do however contain hydroxyl groups throughout the backbone, which may also undergo other cross-linking reactions, e.g. with aminoplasts, phenoplasts and isocyanates. Epoxy resins are polymeric or semi-polymeric materials or an oligomer , and as such rarely exist as pure substances, since variable chain length results from the ...