Ohmic Heating is an Alternative Preservation Technique-A Review

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Shivmurti, S.
Shivmurti, S.
2
Shivmurti
Shivmurti
4
Rinkita
Rinkita
6
Harshit
Harshit
7
Smit
Smit
1 A.D. Patel Institute of Technology

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GJSFR Volume 14 Issue E4
Ohmic Heating is an Alternative Preservation Technique-A Review

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Ohmic heating offers an alternating to conventional heating because it simultaneously heats both phases by internal energy generated through electrical energy. In this process heating rate depends upon the electrical conductivity and field strength. By this method a product undergoes a minimum structural damage, retain its nutritional value. This technique gives excellent processed quality products in minimum operating time. Electrical conductivity of food products is linear with different temperature range. Energy during ohmic heating is dissipated directly into the foods. Ohmic heating can be utilized in different preprocessing and processing operations like blanching, evaporation, dehydration, fermentation, extraction, sterilization, pasteurization etc. Additionally research revealed that there is no protein denaturation at high temperature when heated with ohmic heating, also in the presence of starch, unusual conductivity behaviors found due to starch gelatinization.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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Shivmurti, S.. 2015. \u201cOhmic Heating is an Alternative Preservation Technique-A Review\u201d. Global Journal of Science Frontier Research - E: Marine Science GJSFR-E Volume 14 (GJSFR Volume 14 Issue E4): .

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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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v1.2

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January 31, 2015

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English

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Ohmic heating offers an alternating to conventional heating because it simultaneously heats both phases by internal energy generated through electrical energy. In this process heating rate depends upon the electrical conductivity and field strength. By this method a product undergoes a minimum structural damage, retain its nutritional value. This technique gives excellent processed quality products in minimum operating time. Electrical conductivity of food products is linear with different temperature range. Energy during ohmic heating is dissipated directly into the foods. Ohmic heating can be utilized in different preprocessing and processing operations like blanching, evaporation, dehydration, fermentation, extraction, sterilization, pasteurization etc. Additionally research revealed that there is no protein denaturation at high temperature when heated with ohmic heating, also in the presence of starch, unusual conductivity behaviors found due to starch gelatinization.

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Ohmic Heating is an Alternative Preservation Technique-A Review

Shivmurti
Shivmurti
S.
S.
Rinkita
Rinkita
P.
P.
Harshit
Harshit
P.
P.
Smit
Smit
P.
P.

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