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portant;">苯甲酸钠归于酸性防腐剂在酸性环境下防腐效果较好,是很常用的食物防腐剂,有避免变质发酸、延伸保质期的效果
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portant;">苯甲酸钠是苯甲酸的钠盐,无嗅或略带安息香气味,在酸性食物中能部分转为有活性的苯甲酸,防腐机理同苯甲酸。因为比苯甲酸纳更易溶于水,并且在空气中安稳,酵母菌和细菌的效果强
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portant;">应用领域
portant;">要用作食物防腐剂,也用于制 、染料等
portant;">苯甲酸和苯甲酸钠常用于保藏高酸性生果、果酱、饮料糖浆记忆其他酸性食物,能够低温合用,起到协同效果
portant;">苯甲酸钠对微生物的效果于苯甲酸相同,可因为是钠盐,若要取得与苯甲酸相同的效果,所需添加量是苯甲酸的1.2倍
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