Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Introducing PATS - novel sterilization using high pressure and temperature

1,014 views

Published on

See also:
http://nl.topwiki.nl/index.php/PATS
and:
www.toptechnologytalks.nl
or twitter @toptechtalks

  • Be the first to comment

Introducing PATS - novel sterilization using high pressure and temperature

  1. 1. #TTT – Introduction PATS A novel sterilization technology using high pressure and temperatureWouter de HeijCEO TOP b.vwww.top-bv.nlwww.toptechnologytalks.nlwww.topfoodlab.nlwww.tophealtfacts.nlwww.topwiki.nl ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  2. 2. Achtergrond: Pasteurisatie vs SterilisatiePasteurisatie:• Inactivatie van vegetatieve cellen• Typische condities : 70-80oC• Ketencondities : gekoeld (soms ongekoeld : sappen)• Voorbeelden : melk, koelversmaaltijd, sappen, …Sterilisatie:• Inactivatie van vegetatieve cellen en sporen van M.O.• Typische condities : >120oC• Ketencondities : ambient (niet gekoeld)• Voorbeelden : soepen in blik, maaltijden, vlees, … ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  3. 3. PATS : first idea’s 1999-2002PATS (sterilization with pressure):•Inactivation of spores by a combined effect of temperature and pressure•Advantage : minimal thermal damage  quality improvement of products (taste, color, firmness)Problem description : Wageningen University and Research Centre•Experiments are difficult to reproduce. did not provide permission Different systems  temperate gradients to publish these photo’s•Results are dependent on equipment used•The importance of temperature is probably not enough recognized.Processing conditions•Wilson: 1 pulse (T0>90°C, 700 MPa, > 15 min )•Meyer: 2 pulses (700 MPa, 90°C;1000 MPa, 70°C) ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  4. 4. PATS : Basic principle – Adiabatic heatingHow to sterilize pH neutral foodproducts with a maximum quality andambient stable long shelf-life: T0• Proces is gepatenteerd Temperature (Van Schepdael, Hoogland en De Heij, WO 0245528)• Pressure assisted thermal process. Time• Adiabatic-isobaric process PressureIntegratie van het hogedruk gedeelte& voorverwarming bepaalt het nettoeffect van de Sterilisatie pilot lijn! ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  5. 5. Adiabatic- vs isothermal pressure processes Isotherm Typical HPP Adiabatic T0Temperature Temperature Temperature T0 T0 Time Time TimePressure Pressure Pressure Slow Non-homogeneous Fast Inefficient Efficient Small volume Large volume Cooling De Heij et.al., 2002 Avoid heat losses ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  6. 6. Complex meals treated with PATS ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  7. 7. Quality of product (multi pressure pulses) 120 % a r o m a co m p o n e n t 120Flavour 100 B a s il Vitamins 100 V ita m in C in g re e n b e a n s V ita m in A in to m a to 80 % Vitam in 80 60 60 40 40 20 20 0 0 F re s h D rie d F ro z e n R e to rt P H P P F re sh F ro ze n R e to rt PHPP 50Texture G re e n b e a n s Colour 20 S p in a c h F irm n e s s [ N ] 40 - a ( gr een c olour ) 15 30 10 20 10 5 0 0 F re s h F ro z e n R e to rt PHPP F re s h F ro z e n R e to rt PHPP Krebbers et.al. 2003 & Van den Berg et.al. 2005 ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  8. 8. PATS : microbial MPN – B.sp. PA3679 8 1 plate count 8 2 plate count MPN 5 days MPN 5 days MPN 8 days MPN 8 days 7 7 MPN 14 days MPN 16 days MPN 23 days MPN 21 days 6 6 MPN 30 days MPN 30 days MPN 50 days MPN 37 days log N/ml 5 log N/ml 5 4 4 3 3 2 2 1 1 0 0 untreated 0 sec 2 x 20 sec 1 x 40 sec 2 x 40 sec 1 x 80 sec untreated 0 sec 2 x 20 sec 1 x 40 sec 2 x 40 sec 1 x 80 sec 8 treatment plate count treatment MPN 4 days 7 3 MPN 7 days MPN 11 days Clostridium sporogenes PA3679 MPN 15 days 6 MPN 20 days MPN 29 days Treatments:log N/ml 5 4 1. Ti = 70°C, P = 800 MPa 3 2. Ti = 80°C, P = 600 MPa 2 3. Ti = 80°C, P = 800 MPa 1 0 untreated 0 sec 2 x 20 sec 1 x 40 sec 2 x 40 sec 1 x 80 sec Jannie van Beek, treatment SAFE Seminar te Brussel 2004 ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  9. 9. PATS : inactivation kinetics of sporesBacillus stearothermophilus Bacillus subtilis Clostridium sporogenes ATCC 7953 A162 PA3679 Bs r ep a soms c t i l l eho ua r h t i l u Bs t ( 6 a sl A c u i l lub 1 i is 2) Cd soe A ) l t i o up e ( 3 s m gs ri o nP 9 r 6 7 C : 1 C : 65 C : 12 C : 8 C : 4 C : 13 C : 6 C : 10 C : 8 C : 1 C : 14 3 C : 8 C : 5 C : 10 C : 3 C : 7 C : 6 0 . 0 0 0 C : 4 0 .0 00 C : 4 C : 9 C : 7 C : 5 0 . 5 0 2 C C : 1 : 22 C : 10 0 .5 02 C : 2 0 . 0 0 5 0 .0 05 0 . 5 0 7 C : 7 0 .5 07 0 . 0 1 0 C: 9 C : 5 0 .0 10 0 . 5 1 2 C : 3 C: 3 0 .5 12 0 . 0 1 5 C C : 1 : 11 C : 9 0 .0 15 C:1 0 . 5 1 7 0 .5 17 0 . 0 2 0 0 .0 20 0 . 5 2 2 0 .5 22 ae bo v ae b ov De Heij et.al. 2005 & Van den Berg et.al. 2005 ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  10. 10. PATS : inactivation kinetics of spores Henry Jager et.al. 2008 ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  11. 11. PATS : Heating, pressure and cooling 115 oC Temperature product 85 oC 8000 bar Pressure 20 oC ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  12. 12. PATS : Multiple shot (external intensifier) Axial pressure Medium separator (pre-heated) 800 MPa tubing not relaible 800 MPa pump not relaible No energy recovery possible P ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  13. 13. PATS : Single shot (internal intensifier)Axial pressureSmall medium separator160 MPa tubing relaible160 MPa pump relaibleEnergy recovery possible PBaraWing process (adiabatic) Van Schepdael et.al. patent WO 0245528 Pre-fill & pre-pressure ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  14. 14. PATS : Comparison of the vessel concepts 1 +/- - +/- +/- - +/- - 2 + + + + +/- + +/- ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  15. 15. PATS : Vessel of pilot plant (2003-2005) ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  16. 16. Containers for the PATS pilot plant ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  17. 17. PATS : Pilot plant (2003-2005) ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  18. 18. PATS : Overview of the pilot plant (2005) ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  19. 19. PATS : The development team ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  20. 20. PATS : The development team Ludo van Schepdeal (projectleader PATS, left) and Wouter de Heij (right) are working at TOP b.v. (www.top-bv.nl) since 2005. The microbial experts e.g. Jannie van Beek of the PATS-team are also working at TOP b.v. Hence, a very high concentration of PATS knowledge is available for food producers via TOP b.v. ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012
  21. 21. In Q4 2012 PATS 2.0 will enter the market …. ir. Wouter de Heij +31.6.55765772 - TOP b.v. - © 2012

×