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Acetic acid and citric acid are a common pair of acidic substances that are widely used in fields such as food and cosmetics. Although they both belong to the category of acids, pyruvate and citric acid have some significant differences in structure, source, properties, and uses

The structure of pyruvate is simple and unique, with the chemical formula C3H4O3. It is an organic acid that appears as colorless crystals or crystalline powders. The chemical formula of citric acid is C6H8O7, which belongs to carboxylic acid. Citric acid is widely present in citrus fruits such as lemons and oranges in nature, hence its name

The chemical properties of pyruvate and citric acid are also different. Pyruvic acid is a strong acid with a pKa value of 3.6, indicating high acidity. It has a volatile and unique sour taste, suitable for seasoning, food additives, and preservatives in the food industry. Citric acid is a weaker organic acid with a pKa value of 3.1. Citric acid has a sour and sweet taste, and is widely used in fields such as food, beverages, cosmetics, and cleaning agents

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

In summary, although both pyruvate and citric acid belong to acidic substances, there are significant differences in their structure, source, properties, and uses. Pyruvic acid has strong acidity and a unique sour taste, making it suitable for seasoning and preservatives in the food industry; Citric acid, on the other hand, is a weaker organic acid with a sour and sweet taste, widely used in fields such as food, beverages, and cosmetics. Understanding their differences helps us better choose and use these common acidic substances, bringing more convenience and taste to our lives and health.