What is the thermopenetration concept, Biology

Assignment Help:

What is the thermopenetration concept?

The pasteurization of products packed in glass containers leads to a problem of a specific nature, which is referred to as 'thermopenetration'. What is the thermopenetration concept? Let's find out.

The thermopenetration problem is very important, particularly in the case of the pasteurization of products packed in glass containers, as it is the ascertaining factor for the success of the whole operation. Throughout pasteurization it is essential that a sufficient heat quantity is transferred via the receptacle walls; this is in order that the product temperature rises adequately to be lethal to microorganisms all through the product mass. The most suitable and practical process to speed up thermopenetration is the movement of receptacles during the pasteurization process. Rapid rotation of receptacles in the region of their axis is an efficient means to accelerate heat transfer, because this has the effect, between others of rapidly mixing the contents. The critical speed of for this movement is usually about 70 rotations per minute (RPM). This allows a more uniform heating of products, decreasing heating time and organoleptic degradation. Heating may come first or follow packaging. It is suitable to separate heat preservation practices into two broad categories: one includes heating of foods in their final containers, the other uses heat prior to packaging. The latter category involves methods that are inherently less damaging to food quality, in which the food can be willingly subdivided (such as liquids) for rapid heat exchange. Though, these methods then need packaging under aseptic or nearly aseptic conditions to prevent or at least minimise recontamination. Alternatively, heating within the package often is less costly and produces quite acceptable quality with the majority of foods and most of our present canned food supply is heated in the package. Tetra pack available in the market for fruit juices are the best instances for aseptic packaging.


Related Discussions:- What is the thermopenetration concept

Define visible hazards in food, Normal 0 false false false ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

What are the implant selection errors, Implant Selection Errors There a...

Implant Selection Errors There are a plethora of commercially available implant systems and designs. Qualitative and quantitative nature of the available bone should be careful

Explain the ecological approach in taxonomy, Explain the Ecological Approac...

Explain the Ecological Approach in Taxonomy You already known that the use of ecological data in classification has been used since the time of Plato who considered aquatic, te

Adult (post natal) stem cells-types of stem cells, Adult (Post natal) stem ...

Adult (Post natal) stem cells : act as repair system for the body replenishing specialized cells but also maintain the normal turnover of regenerative organs such as blood, skin o

What thiamine defiency will result in decreased activity, A thiamine defien...

A thiamine defiency will result in decreased activity of: -G-6 phosphase -transketolase -fructokinase

What are the approaches to the design of retaining walls, What are the appr...

What are the approaches to the design of retaining walls? The approach to the design of retaining walls can be started as follows: a. Chosse a trial dimension of the wall

Chordata and its characteristics, Phylum Chordata- Chordata name given ...

Phylum Chordata- Chordata name given by Balfour. Herst put hemichordata into separate phylum. Lamarck gave the word tunicata & vertebrata. Pisces classified by Rom

Explain the precautions for use of light microscope, Explain the Precaution...

Explain the Precautions for Use of Light Microscope? 1. Clean the lens system properly. 2. Use xylol only when necessary. 3. Never lower the body tube while looking throu

Can you explain lane and eynon method, Q. Can you explain Lane and Eynon me...

Q. Can you explain Lane and Eynon method? Reducing sugars are those, which have free sugar groups (e.g. glucose, fructose etc.) and hence may be estimated directly by titrat

Explain about dry heat sterilization, Q. Explain about Dry heat sterilizati...

Q. Explain about Dry heat sterilization? It is used to sterilize glass ware, forceps, scissors, scalpels, all glass syringes, swabs, some pharmaceuticals products such as liqui

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd