Frequently asked questions (FAQ)
Raslysation is a gentle, effective, and sustainable non-thermal processing technology for liquids and it is replacing pasteurization and microfiltration as the industry standard. Given the disruptive nature of our technology, we receive a lot of questions. Read the most frequent ones below. If your question isn’t answered, reach out to our sales team – they’d love to help.
Lyras’ systems are designed to treat liquids ranging from high to low transparency. We specialize in the treatment of enzymes, juice, and dairy products but are also experienced in treating non-food liquids such as blood plasma for animal feed.
A raslysation system uses disinfecting light, whereas a pasteurizer relies on heat to inactivate harmful food-borne bacteria and spoilage organisms.
The patented raslysation technology merely consists of the raslysation system and a feed unit – thus removing the need for any additional equipment usually related to pasteurization.
Learn more about the differences between raslysation and various processing technologies here.
HPP is a non-thermal food preservation technique that kills microorganisms. It uses intense pressure for a certain period and has minimal effects on taste, texture, appearance, and nutritional values. However, HPP has a high energy usage and is only capable of treating products in batches. In the cases where raslysation can replace HPP, liquids are processed at a fraction of the cost and energy of HPP .
According to the research carried out by EFSA (The European Food Safety Authority) regarding Dairy Crest and vitamin D enrichment, it is safe to use UV-C for treatment of milk. Where legal approval is not identified for certain purposes or in certain countries, the possibility of meeting or changing regulations will be pursued.
With Lyras’ patented raslysation system comes benefits including increased resource efficiency, improved product quality, and long shelf life, ultimately constituting a more sustainable treatment solution. Read about more benefits here.
Opacity has previously been the challenge of using UV light in liquid treatment as the light has not been able to penetrate opaque liquids. This factor poses a challenge because, for it to be effective, all bacteria in the liquid must be illuminated by UV light. Therefore, a product with low transparency, such as milk, is harder to treat than, for example, water.
We at Lyras have solved this challenge with our patented systems. The unique design geometry of the flagship creates a turbulent flow to ensure that the entire volume of liquid is exposed to UV light. This technique solves the challenge of UV treatment and constitutes a greener, more energy-efficient processing method.
With the raslysation technique, Lyras can treat various products with different viscosity and transparency levels, such as whey, brine, juice, mixers, process water etc.
Read about the technology here.
Lyras’ raslysation technology is an energy-efficient treatment solution that reduces energy consumption by 60-90%. The method also reduces water usage by 60-80%, almost eliminating water waste.
Conventionally, pasteurization processes involve the use of fossils fuels, which have a negative impact on the global carbon footprint. Lyras’ raslysation technology, on the other hand, only uses electricity and allows for a greener production with the potential of running entirely on renewable energy. Consequently, Lyras’ raslysation technology contributes to bringing down the global CO2 emissions as the solution ensures sustainable production patterns with a lower carbon footprint than conventional pasteurization.
Yes, Raslysation effectively eliminates bacteria such as Listeria monocytogenes and Escherichia coli (E. coli), as well as yeast and other spoilage microorganisms.
The UV light in our Raslysation technology inactivates microorganisms by damaging their DNA, preventing replication and rendering them non-viable, ensuring product quality and safety.
Raslysation eliminates:
- Escherichia coli (E. coli)
E. coli is a Gram-negative bacterium that lives naturally in the intestines of humans and animals. Harmful E. coli strains pose a serious threat to food safety, and infection can lead to severe illness in consumers, particularly in young children and the elderly.
Raslysation offers an effective, non-thermal method for inactivating harmful bacteria like E. coli in opaque liquids, protecting both your product and your brand.
- Listeria monocytogenes (L. monocytogenes)
L. monocytogenes is a bacterium, causing the life-threatening disease Listeriosis. The bacterium is found in a wide range of places, such as animals, water, soil, and food processing environments. If ingested, Listeria may cause serious illness, posing a substantial challenge to the food industry and a significant risk to public health. Listeriosis is a potentially fatal infection particularly dangerous for pregnant women, the elderly and immunocompromised individuals.
Raslysation effectively eliminates bacteria such as L. monocytogenes using UV light, which inactivates the bacterium by damaging its DNA and preventing replication, ultimately causing cell death.
Read our white paper on “Controlling Listeria in brine with Raslysation” for detailed test results and insights.
Additional microorganisms Raslysation is effective against:
- Salmonella enterica (Salmonella)
- Bacillus cereus (B. cereus)
- Staphylococcus aureus (S. aureus)
- Lactococcus/Lactobacillus
- Enterococcus/Enterobacter
- Thermophilic bacteria
- Yeast
Looking for an energy efficient way to treat opaque liquids with minimal waste? We offer tailored solutions to meet your specific product and safety needs.
