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[Chemical Knowledge]：Pyruvate vs. Citric Acid: Understanding the Difference Between Two Common Acids

Read： 849 Time：15months ago Source：Transform the World with Simplicity

Pyruvic acid and citric acid are a pair of common acids, which are widely used in food and cosmetics. Although they are all acids, pyruvic acid and citric acid have some obvious differences in structure, origin, properties and uses. The structure of

pyruvic acid is simple and special, and the chemical formula is C3H4O3. It is an organic acid, colorless crystals or crystalline powder. The chemical formula of citric acid is C6H8O7, which belongs to carboxylic acid. Citric acid is widely found in citrus fruits such as lemons and oranges in nature, so it is called citric acid. The chemical properties of

pyruvic acid and citric acid are also different. Pyruvic acid is a strong acid, its pKa value is 3.6, with high acidity. It has volatile and unique sour taste, and is suitable for condiments, food additives and preservatives in the food industry. Citric acid is a weak organic acid with a pKa value of 3.1. Citric acid taste sweet and sour, widely used in food, beverage, cosmetics and cleaning agents and other fields.

In addition, in the food industry, pyruvic acid and citric acid also have different uses. Pyruvic acid is an antioxidant and acidulant, which can enhance the taste and freshness of food and extend the shelf life of food during the food manufacturing process. Citric acid is often used as a pH regulator, chelating agent and fortifier to improve the taste and stability of food. In addition, citric acid is often used as a food acidity regulator, which can enhance the sour taste and improve the taste of food.

sum up, although pyruvic acid and citric acid are acids, there are obvious differences in structure, source, nature and use. Pyruvic acid has strong acidity and unique sour taste, which is suitable for condiments and preservatives in the food industry, while citric acid is a weak organic acid with sour and sweet taste, which is widely used in food, beverage and cosmetics. Understanding the difference between them helps us to better choose and use these common acids, bringing more convenience and taste to our life and health.

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