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    Acidulants & Food Salts

    柠檬酸

    柠檬酸 – Acidulants & Food Salts product from Bio Green Foods

    关于此产品

    柠檬酸为三元有机酸,分子式 C6H8O7,CAS 号 77-92-9,欧盟食品添加剂编号 E330。它天然存在于柑橘类水果中,但商品化产品基本上全部以糖质基质经黑曲霉(Aspergillus niger)发酵生产。产品为无水或一水合白色结晶或粉末,易溶于水。

    其用途广泛源于分子中含有三个羧基,pKa 值约为 3.1、4.8 和 6.4。它带来爽利纯正的酸味,消退迅速,不留尾味,也不掩盖果香,因此在多数饮料中优于苹果酸和酒石酸。同样这三个基团使其能在较宽的 pH 范围内有效缓冲,并使分子能够包合并固定金属离子。这种螯合能力本身即具价值:游离铁和铜会催化使油脂酸败、使切开水果褐变的氧化反应,而柠檬酸可将其从体系中除去。因此在实际应用中,一种原料即可同时发挥酸味剂、缓冲剂、防腐助剂和抗氧化增效剂的作用。

    广泛用于软饮料和果汁、糖果、果酱和蜜饯、水果蔬菜罐头、乳制品、烘焙食品,并作为加工助剂用于整个食品工业。

    Bio Green Foods 按含量、水分、草酸盐、硫酸盐、氯化物和重金属等指标供应符合规格的无水及一水柠檬酸。

    规格

    GradeConfirmed on enquiry

    应用

    pH and acidity controlBuffering and sequestrationBeverage and prepared-food formulation

    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。

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    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.

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