anaphylaxis antioxidant arsenic ascorbic acid bha bht borate calcium propionate chemical compound chromium citric acid citrus copper decomposition diatomaceous earth edta ethanol food additive food preservation food science formaldehyde frozen food fungus glutaraldehyde insect lemon lumber methylchloroisothiazolinone oxygen absorber petroleum pickling sodium bisulfite sodium nitrate sodium nitrite sugar sulfite sulfur dioxide termite toxicology vinegar wood