雙酚(fen)A是一種(zhong)普遍應用在(zai)塑料(liao)(liao)(liao)食(shi)品包裝(zhuang)(zhuang)設(she)計(ji)(ji)中(zhong)(zhong)(zhong)的化學物(wu)質，塑料(liao)(liao)(liao)食(shi)品包裝(zhuang)(zhuang)設(she)計(ji)(ji)中(zhong)(zhong)(zhong)的雙酚(fen)A在(zai)加(jia)熱后可融入(ru)食(shi)品中(zhong)(zhong)(zhong)。酚(fen)醛(quan)(quan)樹脂和脲(niao)醛(quan)(quan)中(zhong)(zhong)(zhong)甲(jia)醛(quan)(quan)含量較(jiao)高，塑料(liao)(liao)(liao)食(shi)品包裝(zhuang)(zhuang)設(she)計(ji)(ji)中(zhong)(zhong)(zhong)的游離甲(jia)醛(quan)(quan)可融入(ru)食(shi)品中(zhong)(zhong)(zhong)。