Pulsed Light ( PUV ) and PEF customized processes & systems to sterilize or modify various solid , liquid or powdered food products
have been developed / delivered by wek-tec with its cooperating German companies since 1996 . Obtained results have been published & referenced in scientific and industrial publications , see
info .
# 1 : the use of Pulsed Electrical Fields ( PEF ) systems for all cases aside simplest filtered fruit juices requires a process development followed with adjusting a PEF production system .
Indeed , while the basic PEF process is known since decades as stretching bacterium till its eruption by sharp pulsing electrical fields , yet each practical case requires overcoming specifics which diminish the process effectiveness even down to nothing . The advantage of our customization is in employing very broad pulsing parameters and using the latest available improvements to PEF chambers as it is shown on the adjusting page .
# 2 : Intense Pulsed UV ( IPUV ) - Pulsed Light ( IPL ) sterilization processes & systems :
We are also very experienced in those since we are ones of its first developers :
respective pioneering articles were published in 1992-1994 and then in 1999-2001 by Dr . Wekhof alone and with his coauthors (
info ).
Our charts on the left are used to find IPUV ( IPL ) regions with optimal ratios of UV energies to its costs and to determine if those are superior or not to the continuous UVC light , or to PEF or to non-invasive IR .
# 3 : Sanitation and / or modifications of nutrition powders with UV light :
The lab R & D
Vortex system partially shown on the left is the vortex type system where a nutrition powder is moved around a UV lamp by a forced air enriched with the Nitrogen gas .
This and some modifications of this system were used for our customers . Our acquired data show good prospects of this approach .
Wek-tec offers this system for long-term rent at a customer site as a DONATION to any university or a government agency which will be interested to get it .