ultra high pressure treatment (UHP): a method of preserving and sterilizing food, in which a product is processed under very high pressure, leading to the inactivation of certain microorganisms and enzymes in the food. Did You Know? (Ag Facts)
What is ultra high pressure processing (UHP)?
Ultra-High Pressure (UHP) is defined by the National Fire Protection Agency (NFPA) as pump pressures above 1100 psi. By flowing water at these pressures, water droplets are broken into 64 smaller droplets, creating 10 times the surface area. Greater surface area means more contact with the fire and more efficient heat absorption.
What is ultra high pressure fire fighting?
Jul 15, 2019 · Ultra high pressure water jetting is a material surface cleaning process that uses water propelled at a high velocity to remove contaminants and other debris. The force of the fast-moving water as it hits a material's surface is powerful enough to remove unwanted layers of old coatings, which in turn prepares the surface for subsequent operations such as applying …
What is ultra high pressure water jetting?
Jun 11, 2014 · Tyndall Air Force Base’s Air Force Research Lab, in conjunction with several UHP manufacturers, including HMA Fire, has determined that ultra-high pressure, defined as nozzle pressure in the range of 1,150 to 1,300 psi, is the most efficient fire extinguishing methodology; efficient equals fastest extinguishment time, lowest use of water, swiftest response time, and …
What is high hydrostatic pressure (HHP)?
Sterilization and homogenization by means of continuous ultra-high pressure, also known as UHPH, is an innovative patented technology that, among other important applications, allows the simultaneous sterilization and homogenization of beverages and other liquid products without causing any damage to their original properties. UHPH VIDEO
What is ultra high pressure processing?
In high pressure processing of foods, foods are subjected to ultra high hydrostatic pressure (UHHP or UHP), generally in the range of 100-1000 MPa. The pro- cessing temperature during pressure treatments can be adjusted from below 0°C to above 100°C with exposure times ranging from a few seconds to over 20 min.
What is ultra high pressure treatment and what are the benefits of this process?
HPP involves the application of ultra-high pressure (100–600 MPa) to achieve pasteurization. As it enables the preservation of the natural flavors and nutritional values of raw ingredients, HPP has been recognized as a mild processing technology that can achieve both food safety and flavor retention [1].
What is high pressure treatment?
High-pressure processing (HPP) is a “nonthermal” food preservation technique that inactivates harmful pathogens and vegetative spoilage microorganisms by using pressure rather than heat to effect pasteurization.Nov 1, 2008
What are the advantages of the ultra high pressure sterilization technology?
The main process advantages of high pressure sterilisation of canned products compared to conventional techniques are therefore shorter treatment times, lower maximum temperatures, faster heating and cooling, and a more uniform radial temperature distribution.
Is High Pressure Processing safe?
HPP juice is safer than raw juice. As discussed in the beginning of this article, HPP successfully achieves a 5 log reduction of microorganism in juice. These potentially harmful bacteria include E. Coli, salmonella, and other bad things. If harmful bacteria does exist in the raw juice, HPP can usually make it safe.Mar 3, 2017
What foods are not high pressure treated?
What type of products high pressure processing cannot be used? High pressure treatment requires that food must contain water and not have internal air pockets. Food materials containing entrapped air such as strawberries, marshmallows, leafy vegetables would be crushed under high pressure treatment.
What is the problem with using high pressure processing HPP )?
HPP is a process whereby foods, outside or inside packaging, are placed in a chamber and exposed to extraordinarily high pressure. Packworld.com explains: "This pressure destroys microbiological cells and protein in the form of enzymes, which are the major causes of food deterioration.Feb 27, 2017
What is the maximum pressure exerted inside high pressure processing?
During high-pressure processing (HPP), food materials are subject to pressures up to 1000 MPa with a fluid (often water) as the pressure transmitting medium for a specified time interval. This can range from a few seconds to several minutes.
What do you mean by HPP?
High Pressure Processing (HPP) is a cold pasteurization technique by which products, already sealed in its final package, are introduced into a vessel and subjected to a high level of isostatic pressure (300–600MPa/43,500-87,000psi) transmitted by water.
What are the two advantages of using high pressure?
High Pressure Processing Technology (HPP) Main Advantages Destroys pathogens (Listeria, Salmonella, Vibrio, Norovirus, etc.): Food safety and exportation. Extends product shelf life: Lower returns, improved customer satisfaction.
What is high pressure Sterilisation?
High pressure sterilisation is an extension of the possibilities of high pressure technology. By combining pressure and temperature and using the temperature increase caused by adiabatic compression, it is possible to inactivate microbial spores and therefore sterilise food products.
What are the disadvantages of sterilization?
Disadvantages: it does not protect against STIs, so you may need to use condoms. it cannot be easily reversed, and reversal operations are rarely funded by the NHS. it can fail – the fallopian tubes can rejoin and make you fertile again, although this is rare.
How much water does a UHP use?
Water and smoke are responsible for the greatest amount of damage. UHP fire suppression utilizes 1/5 or less water than a conventional attack, leaving significantly less damage.
How fast can UHP fire suppression work?
Testing has shown that using UHP fire suppression and proper attack patterns, upper-layer room temperatures can be decreased by more than 1,000° F in seconds , faster than any conventional system.
How to stop high blood pressure?
Try the Dietary Approaches to Stop Hypertension (DASH) diet, which emphasizes fruits, vegetables, whole grains, poultry, fish and low-fat dairy foods. Get plenty of potassium, which can help prevent and control high blood pressure. Eat less saturated fat and trans fat. Decrease the salt in your diet.
What is elevated blood pressure?
Elevated blood pressure is a systolic pressure ranging from 120 to 129 mm Hg and a diastolic pressure below (not above) 80 mm Hg. Elevated blood pressure tends to get worse over time unless steps are taken to control blood pressure. Elevated blood pressure may also be called prehypertension. Stage 1 hypertension.
What are Alpha blockers?
Alpha blockers include doxazosin (Cardura), prazosin (Minipress) and others. Alpha-beta blockers. Alpha-beta blockers block nerve signals to blood vessels and slow the heartbeat to reduce the amount of blood that must be pumped through the vessels.
What does blood pressure measure?
A blood pressure reading, as shown in the blood pressure monitor in the image, measures the pressure in your arteries when your heart beats (systolic pressure) in the first number, and the pressure in your arteries between heartbeats (diastolic pressure) in the second number.
What happens if your blood pressure is high?
If your blood pressure remains stubbornly high despite taking at least three different types of high blood pressure drugs, one of which usually should be a diuretic, you may have resistant hypertension.
What tests are done to confirm if you have high blood pressure?
Ambulatory monitoring. This 24-hour blood pressure monitoring test is used to confirm if you have high blood pressure.
Why do doctors take blood pressure readings?
Because blood pressure normally varies during the day and may increase during a doctor visit (white coat hypertension), your doctor will likely take several blood pressure readings at three or more separate appointments before diagnosing you with high blood pressure.
Why use ultra high pressure water jetting?
Ultra high pressure water jetting is most often used to clean substrates prior to coating, because without surface preparation, coatings can often fail prematurely. Ultra high pressure water jetting holds several advantages over other types of cleaning processes.
Does ultra high pressure water jetting use hazardous chemicals?
Ultra high pressure water jetting does not use hazardous chemicals, and abrasive media blasting can cause residual solids to accumulate, creating an disorderly work environment.
How does UHP work?
UHP’s small water droplet allows for more of the water droplet, up to 90% of the droplet, to be utilized. Less water falls to the ground as a result. Only 10-20% of larger, low-pressure droplets are used with the remainder falling to the ground. The smaller droplets create a much larger surface area to remove thermal energy from the fire.
Is a UHP system more expensive than a CAFS system?
A UHP system is less costly than CAFS and virtually maintenance free, requiring no air compressors or air bottles. Vehicle Fires: Quickness of response, for both the apparatus to the scene and commencement of fire fighting, is critical in combating a vehicle fire.
What is the UHPH?
Sterilization and homogenization by means of continuous ultra-high pressure, also known as UHPH, is an innovative patented technology that, among other important applications, allows the simultaneous sterilization and homogenization of beverages and other liquid products without causing any damage to their original properties.
What is the UHPH process?
The complete UHPH process includes THE FOLLOWING STEPS. First of all, the UHPH system is sterilized. This is followed by the treatment of the fluid (beverage, liquid foodstuff, pharmaceutical or cosmetic product) by taking it from a storage tank to a heat exchanger, where it can be preheated at different temperatures, ...
What will happen to HPP equipment as demand grows?
As demand for HPP equipment grows, capital cost and operating cost will continue to decrease. Consumers benefit from the increased shelf life, quality, and availability of value-added and new types of foods (which are otherwise not possible to make using thermal processing methods).
What is HPP in food?
HPP can be used to process both liquid and solid (water-containing) food s. The process is also called as high hydrostatic pressure processing (HHP) and ultra high-pressure processing (UHP) in the literature.
Who is responsible for evaluating and monitoring the safety of HPP processed foods?
The requirements are similar to traditional thermal pasteurization in the United States, where the Food and Drug Administration (FDA) and Department of Agriculture (USDA) are responsible for evaluating and monitoring the safety of HPP processed foods.
Can you crush food under pressure?
Food materials containing entrapped air such as strawberries, marshmallows, leafy vegetables would be crushed under high pressure treatment. Similarly, the pressure treatment may not work very well for dry solids or powders. Pressure treatment may compact ( form cake) the products that do not have sufficient moisture.
Does pressure pasteurization kill bacteria?
Pressure pasteurization kills vegetative bacteria and, unless the product is acidic, it requires refrigerated storage. For foods where thermal pasteurization is not an option (due to flavor, texture or color changes) HPP can extend the shelf-life by 2-3 fold over a non-pasteurized counterpart, and improve food safety.
What is the pressure range of XHV?
The pressure range of XHV is usually defined as 10 -12 mbar and lower, while UHV is between 10 -7 and 10 -12 mbar, and HV between 10 -7 and 10-3 mbar. XHV is associated with the levels found in outer-space in the form of geo-stationary orbiting satellites, UHV with high-energy physics and nuclear research, such as that being conducted at CERN ...
What is HV in medical?
HV conditions are typically needed in industrial and research applications, including – but not limited to – composite plastic molding, flight instruments, vacuum tubes, medical applications, coating, mass spectroscopy, electron microscopy and much more. UHV conditions, on the other hand, are used in different application areas.
What is UHT treated milk?
UHT-treated milk is generally packed in paperboard made of six different layers. A polyethylene layer is used for sealing in the milk and also acts as a moisture barrier; aluminum foil acts as an oxygen barrier and protects from off-flavors and light.
What is UHT processing?
UHT Processing. UHT processing is a continuous process. This not only allows the use of higher temperatures but also energy economy (regeneration), whereby the hot fluid heats the incoming fluid. This will save both heating and cooling costs and regeneration efficiencies greater than 90% are attainable.
What is UHT milk?
Ultra-high-temperature (UHT) processing of milk converts a very perishable natural product into a long-shelf-life product. This chapter first discusses the principles, the various processes used and some recent trends in the technology. It highlights the significance of the temperature-time profile of the UHT process and relates this to changes that occur during processing, including whey protein denaturation and formation of protein complexes, fouling or deposit formation, Maillard reactions and lactose isomerisation. Finally, the changes that occur during storage such as gelation, protein changes, flavour changes and fat separation are discussed.
What are the adverse effects of UHT on milk?
Some of the adversely affected nutrient components in milk after UHT treatment are ascorbic acid, folacin, vitamin B 12, vitamin B 6, thiamine, and riboflavin up to an extent of 15–25%, 10–20%, 0–30%, 0–10%, < 10–18%, 0–10%, respectively.
Is UHT milk shelf stable?
Aseptic packaging of UHT milk produces a shelf-stable product. Aseptic packaging involves placing a sterile product in a sterile package. Such processing must take place in a sterile environment. Stability of this product is not limited by bacterial spoilage.
What is the function of ultrafiltration?
Ultrafiltration is the removal of fluid from a patient and is one of the functions of the kidneys that dialysis treatment replaces. Ultrafiltration occurs when fluid passes across a semipermeable membrane (a membrane that allows some substances to pass through but not others) due to a driving pressure.
How does ultrafiltration work in hemodialysis?
Ultrafiltration in Hemodialysis. In hemodialysis, fluid is removed by ultrafiltration using the dialysis membran e. The pressure on the dialysate side is lower so water moves from the blood (place of higher pressure) to the dialysate (place of lower pressure). This is how the hemodialysis treatment removes fluid.
Why does ultrafiltration fail?
Some things that can cause ultrafiltration to fail include uremia (high blood urea nitrogen), peritonitis (infection of the peritoneal membrane), and high dextrose PD solution (especially 4.25%). These factors cause inflammation of the peritoneal membrane.
Diagnosis
Treatment
- Changing your lifestyle can help control and manage high blood pressure. Your doctor may recommend that you make lifestyle changes including: 1. Eating a heart-healthy diet with less salt 2. Getting regular physical activity 3. Maintaining a healthy weight or losing weight if you're overweight or obese 4. Limiting the amount of alcohol you drink Bu...
Clinical Trials
- Explore Mayo Clinic studiestesting new treatments, interventions and tests as a means to prevent, detect, treat or manage this condition.
Lifestyle and Home Remedies
- Lifestyle changes can help you control and prevent high blood pressure, even if you're taking blood pressure medication. Here's what you can do: 1. Eat healthy foods.Eat a heart-healthy diet. Try the Dietary Approaches to Stop Hypertension (DASH) diet, which emphasizes fruits, vegetables, whole grains, poultry, fish and low-fat dairy foods. Get plenty of potassium, which ca…
Alternative Medicine
- Although diet and exercise are the most appropriate tactics to lower your blood pressure, some supplements also may help lower it. However, more research is needed to determine the potential benefits. These supplements include: 1. Fiber, such as blond psyllium and wheat bran 2. Minerals, such as magnesium, calcium and potassium 3. Folic acid 4. Supplements or products that incre…
Coping and Support
- High blood pressure isn't a problem that you can treat and then ignore. It's a condition you need to manage for the rest of your life. To keep your blood pressure under control: 1. Take your medications properly.If side effects or costs pose problems, don't stop taking your medications. Ask your doctor about other options. 2. Schedule regular doctor visits.It takes a team effort to tr…
Preparing For Your Appointment
- If you think you may have high blood pressure, make an appointment with your doctor to have your blood pressure checked. No special preparations are necessary to have your blood pressure checked. You might want to wear a short-sleeved shirt to your appointment so that the blood pressure cuff can fit around your arm properly. Avoid eating, drinking caffeinated beverages an…