What are non-thermal methods of food preservation?

What are non-thermal methods of food preservation?

Processing of foods without the application of heat is termed as the non-thermal processing. The most widely used non-thermal processing techniques are high pressure processing, pulsed electric field, ultrasound, pulsed light, ultraviolet light, irradiation, oscillating magnetic field etc.

What are non-thermal methods?

Non-thermal technologies (NTP) are processing methods for achieving microbial inactivation without exposing foods to adverse effects of heat whilst extending product shelf life and retaining their fresh-like physical, nutritional, and sensory qualities.

What are non-thermal techniques in food processing?

Non-thermal processing of foods (high pressure processing, pulsed electric field, irradiation, and pulsed light) offers an alternative to conventional thermal processing to meet consumer demands for convenient, high quality, and minimally processed food products.

Which method used for non-thermal sterilization?

Novel non-thermal processes, such as high hydrostatic pressure (HHP), pulsed electric fields (PEF), ionizing radiation and ultrasonication, are able to inactivate microorganisms at ambient or sub-lethal temperatures.

Is microwave non-thermal processing?

For this reason, in recent years, microwave radiation has been classified as nonthermal processing by some researchers. Various works have been carried out using high-frequency microwaves to determine the nonthermal effects of the electromagnetic radiation.

What is the difference between thermal and non-thermal?

As adjectives the difference between thermal and nonthermal is that thermal is pertaining to heat or temperature while nonthermal is not thermal; not produced by heat.

What is non-thermal pasteurization?

Non-thermal pasteurization is an alternative food processing technology that allows greater sustainability and efficiency when converting raw food items into finished products. The non-thermal pasteurization market is even expected to reach a value of 2.7 billion by 2023.

What is non-thermal drying?

Non-thermal processes, as the name suggest, are processes that do not involve the generation of heat, but can cause a change in temperature inside a product. In other words, these processes do not depend on the temperature of source.

How do you make non-thermal plasma?

Non-thermal plasma (NTP) is electrically energized matter in a gaseous state, and can be generated by passing gases through electric fields (Conrads and Schmidt, 2000). The mean electron energies of NTP, which is about 20 eV, are considerably higher than those of the components of the ambient gas.

What are the advantages of non-thermal processing?

Nonthermal processing is a value-added technique with diverse benefits, including increased shelf life and improved taste through the preservation of amino acids.

What is the advantage of thermal processing over non-thermal processing?

The advantage of the process is that when pressure is released, cooling is very quick. In conventional thermal processing, cooling can be slow, and much of the damage to flavor and texture occurs then.

Is pasteurization a non-thermal process?

There are several new methods of pasteurization when it comes to non-thermal technology. While this isn’t an all-inclusive list, these types of non-thermal pasteurization are currently seeing a lot of traction: High Pressure Processing (HPP): Uses hydrostatic pressure to get rid of micro-organisms with minimal heat.