返回产品
    Food Preservatives

    苯甲酸钠

    苯甲酸钠 – Food Preservatives product from Bio Green Foods

    关于此产品

    苯甲酸钠是苯甲酸的钠盐,分子式为 C7H5NaO2,CAS 号为 532-32-1,欧洲食品添加剂编号为 E211。产品为白色颗粒状或结晶粉末,易溶于水,溶解度约为苯甲酸本身的 200 倍,这正是其在水性产品中占主导地位的实际原因。

    溶解成盐并不改变其基础化学性质。在溶液中,它与苯甲酸建立平衡,只有未解离的酸才能穿过微生物细胞膜,使细胞内部酸化并终止能量代谢。由于苯甲酸的 pKa 约为 4.2,活性形式的比例随 pH 升高而急剧下降:在 pH 4.0 以下效果显著,在 4.5 时效果有限,在中性 pH 下基本失效。因此其使用仅限于酸性产品,配方师若降低酸度,必须重新评估防腐体系。它主要作用于酵母和霉菌,常与抗菌谱略有不同的山梨酸钾配合使用。已有文献记载其与抗坏血酸的相互作用,在受热和光照条件下可能生成痕量苯,凡同时含有两者的产品均须对此进行评估。

    用于碳酸软饮料、果汁和浓缩果露、腌渍蔬菜、调味酱、色拉调味汁、果酱及水果制品。

    Bio Green Foods 供应食品级苯甲酸钠,按含量、干燥失重、酸度、氯化合物及重金属的规格交付。

    规格

    CAS No.532-32-1
    GradeConfirmed on enquiry

    应用

    Shelf-life formulationMould and yeast controlBakery, beverage and condiment processing

    Frequently Asked Questions

    4 questions answered — origins, specs, applications & more

    参考价格: $1.00–8.50/kg

    价格会根据市场供需变化。请联系我们的销售团队获取最新报价。

    Start with the recipe and the market

    • Finished food, target function and process conditions
    • Required grade, physical form and critical limits
    • Destination market and permitted-use requirements
    • Quantity, packaging and delivery destination
    Discuss your requirement

    Confirm the evidence before ordering

    Food-grade identity alone does not establish permission for every food or country. Confirm permitted use, limits and labelling requirements for the intended market. Certification availability must be checked for the nominated product and manufacturing site.

    Product illustrations show representative material and packaging. The quotation confirms the actual source, grade, pack size and labelling.

    Review documentation