葡萄糖酸钠是一种常见的、具有广泛用途的有机酸钠盐。工业级的葡萄糖酸钠常用于建筑、化工等行业。目前国内几种生产方法，下面精萘厂家为您讲讲：

Sodium Gluconic acid is a common and widely used organic acid sodium salt. Industrial grade sodium Gluconic acid is commonly used in construction, chemical and other industries. At present, there are several production methods in China, and the following refined naphthalene manufacturers will explain to you:

生物发酵法

Biological fermentation method

发酵法是比较传统的葡萄糖酸钠生产方法，其中较普遍采用的是黑曲霉菌发酵制葡萄糖酸钠工艺，优点是初糖浓度高、控制温度高（浓度30%以上，温度40℃，这是所有发酵有机酸中少有的）、发酵过程易于控制、生产稳定温和、易于大工业化生产。同时具有成本低，质量易控制等优点是目前国内工业化生产葡萄糖酸钠的主要生产方法。缺点是生产周期长（48-56h），生产过程菌丝体难过滤，难处理，发酵设备数量多投资大，活性炭用量大等。

The fermentation method is a more traditional production method of sodium Gluconic acid. Among them, the technology of producing sodium Gluconic acid by Aspergillus niger fermentation is widely used, which has the advantages of high initial sugar concentration, high control temperature (concentration above 30%, temperature 40 ℃, which is rare in all fermented organic acids), easy control of fermentation process, stable and mild production, and easy to large-scale industrial production. At the same time, it has the advantages of low cost and easy quality control, which is the main production method for industrial production of sodium Gluconic acid in China. The disadvantages are long production cycle (48-56h), difficult filtration and treatment of Mycelium in the production process, large amount of fermentation equipment and investment, and large amount of activated carbon.

2.多相催化氧化法

2. Heterogeneous catalysis oxidation

该法工艺简单，反应平稳。缺点是所用催化剂在循环使用一定次数后，催化效率下降，反应时间延长甚至基本无催化活性，催化剂必须报废更新，相应提高了单位产品催化剂耗量，也使葡萄糖酸钠产品生产成本提高。由于金属催化剂具有一定的毒性，其产品通常不能作为食品添加剂由于食品生产，因此，产品应用受到一定限制。

This method has simple process and stable reaction. The disadvantage is that after the catalyst is recycled for a certain number of times, the catalytic efficiency will decline, the reaction time will be prolonged, and even the catalyst will be basically inactive. The catalyst must be scrapped and renewed, which correspondingly increases the catalyst consumption per unit product, and also increases the production cost of sodium Gluconic acid product. Due to the certain toxicity of metal catalysts, their products are usually not suitable as food additives due to food production, therefore, their application is limited.

3.双酶法

3. Double enzyme method

双酶法生产葡萄糖酸钠是近几年新开发的一种方法，主要适合于大中型生产，特别适合于液体葡萄糖酸钠生产应用。酶法生产葡萄糖酸钠，是用葡萄糖氧化酶和过氧化氢酶和葡萄糖溶液进行酶法反应，反应过程中添加氢氧化钠，终得到葡萄糖酸钠。酶法生产工艺的特点是：工艺简单、反应条件温和，产品纯度高、生产周期短（20-24h）、设备相对发酵法少等。

The production of sodium Gluconic acid by double enzyme method is a newly developed method in recent years, which is mainly suitable for large and medium-sized production, especially for the production and application of liquid sodium Gluconic acid. Enzymatic production of sodium Gluconic acid is an enzymatic reaction between glucose oxidase and Catalase and glucose solution. Sodium hydroxide is added in the reaction process to finally obtain sodium Gluconic acid. The characteristics of enzymatic production process are: simple process, mild reaction conditions, high product purity, short production cycle (20-24 hours), and fewer equipment compared to fermentation method.

目前国内葡萄糖酸钠的生产方法主要有生物发酵法、双酶法、多相催化氧化法3种。国内目前大工业生产中主要采用生物发酵法和双酶法。多相催化氧化法由于使用重金属催化剂具有一定的毒性，并且收率和纯度较低，且其产品通常不能作为食品添加剂用于食品生产，因而此生产工艺基本停用。您有什么疑惑就来我们网站http://www.jnjdbc.cn咨询吧！

At present, the domestic production methods of sodium Gluconic acid mainly include biological fermentation, double enzyme method and Heterogeneous catalysis oxidation. At present, biological fermentation and double enzyme methods are mainly used in large-scale industrial production in China. The Heterogeneous catalysis oxidation process is basically stopped because the use of heavy metal catalysts has certain toxicity, low yield and purity, and its products cannot be used as food additives in food production. If you have any doubts, come to our website http://www.jnjdbc.cn Consult!