NATURAL SUBSTITUTE FOR CALCIUM PROPIONATE IN BAKERY
In the bakery industry, the search for more natural ingredients and “clean label” products has become a priority, as in many other sectors. Consumers increasingly prefer products without artificial additives and with more natural ingredients.
One of the main challenges is finding a natural substitute for calcium propionate, a widely used preservative that extends the shelf life of bread and prevents the growth of mold and bacteria.
Recently, some companies have introduced more natural alternatives, such as a combination of fermented sugar and powdered vinegar, which has proven effective in preserving bread without synthetic additives. However, at the end of 2023, buffered vinegar was assigned an E-number, making it necessary to continue searching for other types of preservatives.
As a result, lactic acid bacteria have emerged as an innovative solution to replace calcium propionate, offering a healthier option aligned with current market trends.
What Additives Are Currently Used in Bakery?
Additives play a key role in the quality and safety of bread and other bakery products. Among them, preservatives are essential to prevent spoilage caused by microorganisms and to maintain food safety and sensory quality.
The main preservatives currently used in bakery include:
- Calcium propionate (E282): Inhibits mold and bacterial growth in baked goods.
- Ascorbic acid (E300): Acts as an antioxidant and improves bread texture.
- Sodium benzoate (E211): Used in high-moisture products to prevent microbial growth.
All these preservatives have antifungal properties since mold is one of the primary concerns in this type of food. However, due to the growing demand for products without artificial additives, more manufacturers are looking for natural alternatives to replace these preservatives.
What Is the Function of Calcium Propionate in Bakery?
Calcium propionate is a preservative used worldwide to prevent mold and bacteria in bakery and pastry products. Although it is naturally found in some foods, such as Swiss cheese, the calcium propionate used in the bakery industry is typically synthetic.
Its primary function is to prevent mold growth while not interfering with yeast fermentation, making it ideal for traditionally leavened baked goods. Despite its effectiveness, its use is regulated and must be declared on labeling with its E-number (E282).
What Regulations Apply to Calcium Propionate in Bakery?
The use of food additives, including calcium propionate (E282), is regulated by European Union legislation to ensure consumer safety. According to Regulation (EU) No. 1129/2011, which amends Annex II of Regulation (EC) No. 1333/2008, calcium propionate is authorized for use in bakery and pastry products.
Manufacturers should always check the specific regulations applicable to their country and product to determine precise usage limits.
In addition, Regulation (EU) No 966/2014 sets maximum limits for the concentration of fluoride in calcium propionate, ensuring that it does not exceed 50 mg/kg. This European Commission Regulation amends the specifications for calcium propionate by increasing the maximum limit of fluoride allowed in its composition from 10 mg/kg to 20 mg/kg. The reasons for the change are production difficulties. Calcium propionate is obtained from calcium oxide (E 529), whose maximum permitted fluorine concentration is 50 mg/kg. This has limited the availability of calcium oxide suitable for producing calcium propionate in compliance with the previous standard.
The following table shows the maximum levels of calcium propionate in different foods
| Food | Maximun use(g/kg) |
| Bakery products | 0,1 – 0,5 g/kg |
| Beverages | 0,1 – 0,3 g/kg |
| Cheese | 1 – 3 g/kg |
| Sausages | 1 – 2 g/kg |
| Biscuits | 0,1 – 0,3 g/kg |
What Other Natural Preservation Systems Exist in the Market?
The food industry has developed natural solutions to preserve bread and reduce or eliminate synthetic preservatives.
One innovative method is using fermented sugar combined with powdered vinegar, which has shown effectiveness in extending bread shelf life similarly to calcium propionate. However, as previously mentioned, buffered vinegar now has an E-number, which may pose a concern for consumers.
The best alternative is lactic acid bacteria, which act as natural biopreservatives. These bacteria produce antimicrobial compounds that inhibit the growth of molds and harmful microorganisms, eliminating the need for synthetic additives.
How Can Lactic Acid Bacteria Replace Calcium Propionate?
Lactic acid bacteria have proven to be an effective and natural solution to replace calcium propionate in bakery products. These bacteria generate organic acids and antimicrobial peptides that help extend shelf life without compromising taste, texture, or safety.
Natural fermentations based on lactic acid bacteria not only function as preservatives but can also improve the sensory profile of bread, enhancing its flavor complexity and texture.
The current market increasingly demands clean-label solutions in bakery and pastry. While calcium propionate has long been the standard preservative, more natural and effective alternatives are available, such as fermented sugar combined with powdered vinegar or lactic acid bacteria.
At Amerex, we offer microbiology-based solutions for natural food preservation, enabling bakery and pastry manufacturers to develop safe, healthy, and preservative-free products without compromising shelf life or quality.
Want to learn more about our solutions to ensure food safety? Contact us and discover how our natural preservatives can help protect your products:
- Email us at: imasd@amerexingredientes.com
- Call us at: 91 845 42 14
- Fill out the form below.
Patricia Rodrigo is Head of Marketing & Product at Amerex. With a background in Biotechnology and a Master’s in Biotechnology Business Management, her work focuses on research and communication of natural alternatives to additives, conservation strategies, and pathogen control in various food groups for the industry.
