Liquid Sugar

UV Treatment for Liquid Sugar, Sugar Syrups and Sweeteners

UV is a cost-effective and energy-efficient thermal treatment alternative for preventing microbial growth in sugar syrups and sweeteners.

UV for Liquid Sugar: Treatment Solutions

For food and beverage facilities seeking to improve the final product quality of sweetened beverages and meet stringent quality standards, UV (ultraviolet) treatment is an effective and economical solution. UV systems treat all known microorganisms* that lead to the spoilage of liquid sugar, such as yeasts, molds and spores. By preventing microbial growth, the quality of the sugar syrup is maintained, and its shelf-life is extended without the need for chemical additives and preservatives.

Extends shelf life

Reduces product waste

Maintains flavor and product quality

Reduces need for chemical additives or preservatives

A treatment process schematic showing a UV system installed between sugar syrup storage and the bottling line.

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How UV Technology Treats Liquid Sugars

UV for microbiological inactivation

Microbiological Inactivation

UV systems prevent microbial growth in sugar syrups through the UV inactivation process. When microorganisms are exposed to wavelengths of UV light, their DNA is damaged, and they are instantaneously rendered incapable of reproducing.

Many liquids can be effectively treated using UV, including cloudy or darker fluids with a UV Transmittance (UVT) as low as 20%. Our systems are optimized to treat these fluids by forcing the liquid to be exposed closer to the lamps for a longer period of time to receive higher doses of UV energy.

Microbiological Inactivation

Benefits of Using UV in Your Syrup Room

Microbiological inactivation with UV is a physical process that adds nothing to the fluid it is treating but UV light and therefore does not impact taste, odor and color. This is particularly beneficial when treating product water or sugar syrups for beverages. The speed and efficiency of the treatment process allow the footprint of UV systems in syrup rooms to be relatively small, making it ideal for both new plants and retrofits.

 Minimal contact time required

No impact to taste, odor, or color

 Compact system

 Easy to install

Four Aquafine OptiVenn UV systems installed beside four sugar syrup storage tanks in a beverage production facility

UV as a Heat Pasteurization Alternative for Liquid Sugar

For those products that can tolerate the temperature, heat pasteurization may be an option to treat liquid sugar and sugar syrups. Although, thermal treatment has been known to be an energy-intensive process that can lead to the potential formation of possible carcinogens such as Hydroxymethylfurfural (5-HMF). As an alternative, UV can provide some significant benefits:

  • Treats thermophilic spores that are tolerant to pasteurization
  • Does not produce Hydroxymethylfurfural (5-HMF), a carcinogen that can be formed during thermal treatment
  • Can be less energy-intensive and therefore less expensive to operate
  • Often has a smaller footprint
  • UV preserves the nutritional integrity of the liquid sugar by not relying on heat which can destroy sensitive nutrients

Food Contact Materials Regulations EC 1935/2004

We take great care and pride in ensuring our products meet or exceed regulatory and compliance requirements for the regions and applications served. Our dedicated team monitors relevant laws, rules, and regulations and completes testing to ensure the performance of our products.

The Aquafine Avant and Aquafine OptiVenn comply with European Regulation (EC) 1935/2004, a food safety standard that ensures wetted parts materials are appropriate for food contact.

Aquafine UV Systems for Liquid Sugar Treatment

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Learn more about the advantages of UV for liquid sugar syrup treatment.

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*Specific UV systems manufactured by Trojan Technologies have been validated through microbial testing. Through this testing, performance data has been generated for UV dose delivery to inactivate Escherichia coli (E. coli), fecal coliform, Poliovirus, Cryptosporidium, Giardia, and Adenovirus. For a detailed list of UV systems and target organisms, visit