Shijiazhuang Randa Technology Co., Ltd.

Food preservatives In 1870, the British scientist H.Fleck first described the preservative effect of benzoic acid when seeking an acid to replace the well-known salicylic acid, and he established the preservative effect of this substance, because the safety of sodium benzoate was not studied in depth at that time, and the production technology was not mature enough, it was not used for food preservative for the first time until the beginning of this century, and has since become one of the most used preservatives in the world because of its low price. Sodium benzoate, also known as sodium benzoate, is a commonly used food preservative in China's food industry, odorless or slightly with the smell of benzoin, sweet and astringent. It is stable in the air and can absorb moisture in the open air. Naturally occurring in blueberries, apples, plums, cranberries, cranberries, prunes, cinnamon and cloves, its bactericidal performance is weaker than benzoic acid, and the bactericidal power of 1.180g sodium benzoate is about equivalent to 1g of benzoic acid. In an acidic environment, sodium benzoate has a significant inhibitory effect on a variety of microorganisms, when the pH is 3.5, 0.05% solution can completely inhibit the growth of yeast, but when the pH is above 5.5, the effect on many molds and yeasts is poor. It has almost no effect in alkaline solutions. After sodium benzoate enters the human body, it combines with glycine to form uric acid or glucuronic acid into glucuronide during the biotransformation process, and is completely excreted from the urine and does not accumulate in the body. Within the normal dosage range, it has no toxic effect on the human body and is a safer preservative. It can be used for carbonated drinks, concentrated fruit juices, margarine, gum mother gum base, jam, jelly, soy sauce, etc. The Acceptable Daily Intake (ADI) for the human body is:5毫克/公斤体重(以苯甲酸计)。
用途：
1.苯甲酸钠可用作食品添加剂（防腐剂）、医药工业的杀菌剂、染料工业的媒染剂、塑料工业的增塑剂，也用作香料等有机合成的中间体。2.血清胆红素试验的助溶剂。3.用于医药工业和植物遗传研究，也用作染料中间体、杀菌剂和防腐剂。>