Food Grade Citric Acid: Applications in Food & Beverage Manufacturing

Citric acid (CAS 77-92-9) is the world's most widely used food acidulant and preservative. Naturally occurring in citrus fruits and produced commercially through fermentation, citric acid plays a critical role in food and beverage manufacturing, pharmaceuticals, and industrial applications.

## What Is Citric Acid?

Citric acid is a weak organic acid with the molecular formula C₆H₈O₇. It occurs naturally in citrus fruits — lemons and limes contain particularly high concentrations. Commercially, citric acid is produced through the fermentation of sugars using Aspergillus niger mold. It is available in both anhydrous and monohydrate forms.

## Food & Beverage Applications

**Acidulant & Flavoring**
Citric acid is used in virtually every category of food and beverage as an acidulant — it adds tartness and enhances flavor. It is a key ingredient in carbonated beverages, fruit drinks, candies, jams, and jellies.

**Preservative**
Citric acid lowers the pH of food products, creating an environment that inhibits the growth of bacteria, mold, and yeast. This extends shelf life and maintains food safety.

**Chelating Agent**
In food processing, citric acid chelates metal ions that can cause oxidation and rancidity. This prevents discoloration and off-flavors in canned and processed foods.

**pH Adjustment**
Food manufacturers use citric acid to control the pH of products, ensuring consistency in taste, texture, and preservation across batches.

## Pharmaceutical Applications

Pharmaceutical-grade citric acid is used as a buffering agent, acidulant, and stabilizer in oral medications, effervescent tablets, and topical formulations. It is also used in the preparation of sodium citrate buffer solutions.

## Industrial Applications

Industrial citric acid is used in cleaning products, water treatment, and as a descaling agent. It is effective at removing mineral deposits from surfaces and equipment.

## Available Grades & Forms

- Food Grade Anhydrous
- Food Grade Monohydrate
- USP/BP Grade
- Industrial Grade

## Source Citric Acid Through OpenFormula

OpenFormula supplies citric acid in anhydrous and monohydrate forms across all grades. Contact us for bulk pricing and fast delivery.

For a food-grade inquiry, review our citric acid anhydrous USP FCC listing. If your formulation requires a different form or specification, submit a citric acid sourcing request with the required grade, form, quantity and destination.