Flavouring ingredient; dietary supplement Proline (abbreviated as Pro or P) is an alpha-amino acid, one of the twenty DNA-encoded amino acids. Its codons are CCU, CCC, CCA, and CCG. It is not an essential amino acid, which means that the human body can synthesize it. It is unique among the 20 protein-forming amino acids in that the alpha-amino group is secondary. The more common L form has S stereochemistry. (Wikipedia)


Bisphenol A, commonly abbreviated as BPA, is an organic compound with two phenol functional groups. It is a difunctional building block of several important plastics and plastic additives. With an annual production of 2-3 million metric tonnes, it is an important monomer in the production of polycarbonate. It is a potential food contaminant arising from its use in reusable polycarbonate food containers such as water carboys, baby bottles and kitchen utensils. Suspected of being hazardous to humans since the 1930s, concerns about the use of bisphenol A in consumer products were regularly reported in the news media in 2008 after several governments issued reports questioning its safety, and some retailers removed baby bottles and other children's products made from it from their shelves.

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