mercialization in dairy applications. 6
• 2017: The Israeli food regulations agency approved the use of UV light to reduce
microbial load in pasteurized milk. The health committee approved an application to treat pasteurized milk with UV light at 200 to 300 nm using a turbulent
flow regime. The treated milk must be free from microbial contamination and
will be labeled according to Israeli regulation as “UV-treated” and will be subjected to any changes in the regulation.
• 2018: Health Canada concluded that juices processed with UV technology are
not considered novel foods and are safe for consumption since there is no major
change in nutritional composition
and chemical safety at maximum 100
percent energy level delivered to the
product in one pass.
The regulatory status of UV-C light
treatment emitted by LPM lamps at 254
nm for juice and dairy products, and
the growing premium beverages market,
opens new opportunities for the further
development and commercialization
of this technology at industrial scale.
Food processors who wish to invest and
test this technology should understand
the advantages and limitations of a
UV light-based process. By monitoring
product parameters, the UV treatment
conditions can be tailored to avoid over-processing and developing off-flavors.
UV processing systems should also be
integrated into the line to avoid cross-contamination and achieve maximum
product shelf life. n
Tatiana Koutchma, Ph.D., is a research scientist in
novel food processing at Agriculture and Agri-Food
Canada. She is on the graduate faculty at University
of Guelph, Ontario, Canada, a member at-large of
the Nonthermal Processing Division of the Institute of
Food Technologists, and Canadian Ambassador to the
Global Harmonization Initiative. The author thanks
Motti Coren and Dror Livne of AseptoRay for sharing
data and equipment.
1. Koutchma, T, et al. 2016. “Effects of Ultraviolet
Light and High-Pressure Processing on Quality
and Health Related Constituents of Fresh Juice
Products.” Comp Rev Food Sci Food Safety
2. Biancaniello, M, et al. 2018. “Feasibility of
a Novel Industrial-Scale Treatment of Green
Cold-Pressed Juices by UV-C Light Exposure.”
Beverages 4: 29–44.
3. Keitz, HAE. Light Calculations and Measurements (London: Macmillan and Co. Ltd., 1971).
4. FDA. 2001. “ 21 CFR Part 179. Irradiation in the
Production, Processing and Handling of Food.”
Fed Regist 65:71056–71058.
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