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急用 关于食品安全(食品添加剂)的英语作文80字左右 (中英互译)

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急用 关于食品安全(食品添加剂)的英语作文80字左右 (中英互译)
Food additives are substances added to food to preserve flavor or enhance its taste and appearance.Some additives have been used for centuries; for example,preserving food by pickling (with vinegar),salting,as with bacon,preserving sweets or using sulfur dioxide as in some wines.With the advent of processed foods in the second half of the 20th century,many more additives have been introduced,of both natural and artificial origin.
食品添加剂指食品生产商在生产食品的过程中,在食品中加入一些化学制品,用来改变食品的色泽、气味、或调整食物口感及延长保存时间(防腐剂、抗氧化剂),但有些则会导致癌症,例如许多肉类食品所添加之部分物质,在胃中由于蛋白质、胃酸、添加物相互作用产生之亚硝酸盐类,可导致生理慢性的病变.这些化学制品被称为食品添加剂.