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Hydrostatic Pressure Force on a Curved Surface

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Hydrostatic pressure on curved surfaces is a fundamental concept in fluid mechanics with broad applications in the civil engineering field. When fluid is in contact with a curved surface, as in a reservoir, dam, or storage tank, it exerts pressure that varies in magnitude and direction along the curved surface. To assess the total hydrostatic force exerted by the fluid on a curved structure, engineers typically isolate the fluid volume adjacent to the surface and analyze the forces acting on...

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Related Experiment Video

Updated: May 12, 2026

Evaluation of the Efficacy of Organic Peroxyacids for Eradicating Dairy Biofilms Using an Approach Combining Static and Dynamic Methods

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High hydrostatic pressure technology in dairy processing: a review.

Rekha Chawla¹, Girdhari Ramdass Patil, Ashish Kumar Singh

¹College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab 144004 India.

Journal of Food Science and Technology

|April 11, 2013

Summary

High hydrostatic pressure (HHP) processing inactivates foodborne pathogens and enhances milk coagulation for the dairy industry. This technology offers improved safety, nutritional quality, and extended shelf-life for minimally processed dairy products.

Keywords:

Cold processing Dairy products Hydrostatic pressure Minimally processed

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Published on: April 7, 2023

Area of Science:

Food Science and Technology
Microbiology
Dairy Science

Background:

Consumer demand for high-quality, fresh, and nutritious foods drives innovation in food processing.
Non-thermal processing techniques, particularly high hydrostatic pressure (HHP), are gaining significant interest in the food industry.
Ensuring food safety and offering potential health benefits are key considerations for product development.

Purpose of the Study:

To explore the application of high hydrostatic pressure (HHP) in food processing, with a focus on dairy products.
To evaluate the efficacy of HHP in inactivating microorganisms and improving milk coagulation properties.
To highlight the potential of HHP for developing novel dairy products with enhanced quality and safety.

Main Methods:

Application of high hydrostatic pressure (HHP) within the range of 100–1200 MPa.
Assessment of microbial inactivation, including food-borne pathogens.
Evaluation of HHP effects on milk coagulation (rennet and acid-induced).
Analysis of impacts on flavor, texture, and nutritional content of dairy products.

Main Results:

HHP effectively inactivates microorganisms, including food-borne pathogens, at pressures between 100 and 1200 MPa.
HHP improves rennet and acid coagulation of milk without negatively affecting sensory attributes or nutritional value.
The technology supports the production of microbially safe, minimally processed dairy products.

Conclusions:

High hydrostatic pressure (HHP) is a powerful tool for the dairy industry to enhance food safety and product quality.
HHP enables the development of novel dairy products with improved nutritional and sensory characteristics, novel textures, and extended shelf-life.
This processing method aligns with consumer preferences for fresh-like, safe, and minimally processed foods.