Organic fruits and vegetables are grown without the use of pesticides and are preservative-free on every level.

有机水果和蔬菜生长过程中不能使用杀虫剂，以及任何计量的防腐剂。

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Nisin is a natural, effective and safety food preservative. The use of Nisin in tetrabrik UHT soya milk was studied.

乳酸链球菌素是一种天然、高效、安全的食品防腐剂，研究了乳酸链球菌素在豆奶饮料中的应用效果。

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These are aqueous dispersions of detergent, cellulosic thickener and preservative, made in conformance with and approved for use in the indicated ASTM methods.

该产品为含有清洁剂，纤维素增稠剂和防腐剂的水性分散体，符合指定的ASTM方法的使用标准。

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Jane says she does not use any preservative chemicals in her products, so they only last about two or three weeks.

VOA: special.2010.02.17

Last year, the drug industry demanded and won protection from litigation over the use of thimerosal, a preservative in most vaccines believed by some to cause autism.

ECONOMIST: Vaccines against bioterrorism

The same analysis warns of the difficulties of attaining an even dispersal of salt in bacon, and the impact of laws restricting the use of nitrates as a preservative.

FORBES: Banning the Great British Breakfast