Indian Council of Agricultural Research
(Agricultural Knowledge Management Information System)

ICAR-Central Institute of Fisheries Technology, CIFT Junction Matsyapuri PO, Cochin-682029, Kerala (
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Instrument Details
Instrument/Facility Name: High Pressure Processing (HPP)
Make                                   : Stansted Fluid Power Ltd. Essex, UK
Model                                  : FPG7100:9/2C
Specification   :a) Capacity - 2L b) Working fluid, upto 600 MPa max - Water, water/ vegetable oil emulsion c) Working fluid upto 900 MPa max - Ethanol/ castor oil mix d) Maximum working pressure - 900 MPa/900 Bar/130.000 psi e) Vessel temperature range - -20 C to +110 C f) Heating/ cooling - ambient to 110 C g) Pressure vessel construction - Duplex barrel with W D liner h) Closure mechanism - Yoke type closure with locking tounge plate

Click to Viewi) Time to max pressure - 2 min approx. to 800 MPa j) Repeat pressure cycle - 1-10 k) Decompression: - four stage with manual override l) Pressure measurement - strain gauge transducer m) Temperature measurement - ‘T’ type thermocouple n) Software - SCADA

  Working Principles
Click to ViewA high pressure equipment comprises of mainly a cylindrical steel vessel with high tensile strength, two end closures, a yoke for restraining end closures, direct or indirect pressure pumps for pressure generation, pressure and temperature controls, and loading and unloading equipment. Each processing cycle consists of an initial pressurization period where the pressure builds up and the processing operation can be done either with or without the application of heat. The packaged product should be in flexible or semi flexible pouch, that can sustain very high pressures. The product is then submerged into a pressure transmitting fluid, where water is commonly used. Other liquids like ethanol or glycol, castor oil, silicone oil etc. can also use in various combinations with water or use separately based on the manufacture’s specification. Small amount adiabatic heating occurs with every 100 MPa increase in pressure. Once the process starts, the hydraulic fluid is pressurized with a pump and the generated pressure is transmitted into the packaged food uniformly from all sides. Since this processing is independent of size and geometry of foods, also acts instantaneously there by the total processing time can be reduced. The process is suitably applied for liquid foods and to foods having a certain amount of moisture content. The transmitted pressure is uniform and simultaneously applied from all directions so that food retained its structure even at high pressures. Once the pressure is build up to the desired level the product is held at this pressure for a few minutes and then decompression or pressure release takes place. Oncethere is a fall in pressure the product temperature falls below that of the initial product temperature.

  User Instructions
Only Liquid and semi moist sample can be high pressure processed 2. Dried samples cannot be pressure processed 3. Each operation is a Batch process, with a maximum of 2L capacity 4. Pressure range of 100-600 MPa is admissible 5. Samples should be packed under vacuum, presence of air will collapse the package 6.There is no upper limit for the number of samples acceptable

  Contact Us
Contact No. 0484-2412300
Email Id

  High Pressure Processing (HPP) Charges
Procedure Name
National LAB/R&D
Standarization & Estimation
Under repair
Subsequent sample per element
under repair

Additional Rs 100/-towards postal charges if result are to be posted
The Demand Draft should be in favour of "The Director, ICAR-CIFT, Cochin OR the payment can be made directly at ICAR-CIFT office"
Letter, DD & Samples send to "The Director, ICAR-CIFT, Willingdon Island, Cochin, Kerala-682029 "