These preservatives are present in far lower amounts than found in foods such as fruit juice, cider, margarine, packaged salads, jellies, jam, soft drinks, bread, smoked fish, cheeses, pickles, pies, chocolate syrups and wines.

• 这些防腐剂的浓度比许多食品中防腐剂的浓度要低得多，如果汁、果酒、造黄油、装色拉、冻、酱、性饮料、包、鱼、奶酪、菜、饼、克力、浆以及葡萄酒等。