Investigations into the potential degradation of polycarbonate baby bottles during sterilization with consequent release of bisphenol A

Katrina A. Mountfort, Janet Kelly, Sue M. Jickells, Laurence Castle

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Twenty-four brands of plastic baby feeding bottles were purchased and all were found to be made of polycarbonate. Taking a batch of one representative sample, the polymer was tested for stability and possible release of bisphenol A following domestic practice of sterilization. Sterilization was by alkaline hypochlorite, steam, or washing in an automatic dishwasher at 65°C with detergent. A total of 20 cycles of sterilization and subsequent food use were performed for each of the three procedures. Bisphenol A migration was in all cases not detectable in infant feed using a very sensitive method of liquid chromatography with fluorescence detection with a 0.03 mg/kg detection limit.

Original languageEnglish
Pages (from-to)737-740
Number of pages4
JournalFood Additives and Contaminants
Issue number6-7
Publication statusPublished - Aug 1997


  • bisphenol A
  • Hydrolysis
  • Migration
  • Monomer
  • Polycarbonate
  • Sterilization

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