Introducing PATS - novel sterilization using high pressure and temperature

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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

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