1. The juice contains no artificial preservatives. 这种果汁不含人工防腐剂。
2. Nitrates are used as preservatives in food processing. 硝酸盐在食品加工中被用作防腐剂。
3. Spices actually aren't very effective as preservatives. 香料实际上不是很有效的防腐剂。
4. A regular McDonald's sesame-seed bun contains calcium propionate and sodium propionate—both preservatives. 普通的麦当劳芝麻小圆面包含有丙酸钙和丙酸钠,这两样都是防腐剂。
5. Many people suffer an allergic reaction to certain sulfites, including those that are commonly added to wine as preservatives. 许多人对某些亚硫酸盐有过敏反应,包括那些通常作为防腐剂添加到葡萄酒中的亚硫酸盐。