The Dutch NIZO food research operates the best equipped and largest pilot plant for milk process technology in Europe
(photo: NIZO)
Dampf
Vorerhitzer
Pumpe
TT
Pumpe
Vakuum
PI PT
Kondensat
Kühler
4 °C
60 °C 60 °C
TT
TI 20 °C
PI PT
TI TT
PI PT
FIT
Entspannungskühler Kondensator
160 °C
ISI – the Innovative Steam Injection technology
The ISI heater has been developed by NIZO food research
based on experience in dairy product research. The idea
is originating from advanced computer model simulations
generating an optimal temperature-time relationship of
the process. This relationship was transformed to a process
concept and equipment design. The technology, based on
steam injection, enables very fast heating at very high temperatures.
The sophisticated design of the steam injection
zone makes it possible to achieve a residence time of less
than 0.1 second at 140 - 200ºC. The heating is directly followed
by flash cooling in a vacuum vessel.
ISI works in a new and unique operating region, achieving
a better inactivation of heat-resistant spores than the usual
UHT technology, while the product degradation is reduced
to a minimum.
ISI, what is it?
ISI, a new tool
May/June 2021 ¦ international-dairy.com · 45
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