Define the roller drying (drum drying) method, Biology

Assignment Help:

Define the Roller Drying (Drum drying) Method?

One of the important techniques for drying liquid food products is the roller drier. Like spray drying, roller drying can only be used for liquid products, which can either have a low viscosity or be highly viscous to paste like. Roller dryer is also called drum drying. The metal rollers are heated from inside with condensing steam and the product dries as a thin film by contact with the cylinder surface. While spray drying is done purely by vaporisation, evaporation is the main process in roller drying since the saturated vapour pressure is equal to the atmospheric pressure. The product to be dried is spread as a thin film on to the surface of the hot drum and after one revolution is scraped off by a knife, in the form of flakes, scales or powder. A large part of the roller dried whole milk powder is destined for chocolate manufacture. Roller drying is extensively used for the manufacture of 'instant' potato products, potato flakes, and also for all liquid food products including infant foods, fruit products, eggs, milk and beverages.


Related Discussions:- Define the roller drying (drum drying) method

Explain susceptible organisms of tubeculosis, Susceptible Organisms Wh...

Susceptible Organisms When infection proves to be caused by a fully susceptible strain of TB, the initial phase of treatment should include isoniazid, rifampin and pyrazinamid

Which are the organs affected by chronic chagas disease, Q. In the long ter...

Q. In the long term which are the organs affected by chronic Chagas' disease? In the chronic stage of Chagas' disease, that manifests years after the infection, the trypanosoma

What do you mean by oesophagitis, Q. What do you mean by Oesophagitis? ...

Q. What do you mean by Oesophagitis? We already know that oesophagus is a muscular tube 25 cm in length and basically helps in transporting the food from the mouth to stomach,

Define the term - lateralisation and localisation, Define the term - latera...

Define the term - lateralisation and localisation Discriminative validity studies including lateralisation and localisation achieved satisfactory results, but the localisation

Describe the shape and size of proteins, Shape and size of protiens ...

Shape and size of protiens Fibrous proteins for example: keratin in hair, actin and myosin in muscles, and collagen. Globular proteins, for example enzymes and antibo

Explain wild-type fruitfly drosophila melanogaster, A cross among wild-type...

A cross among wild-type fruitfly Drosophila melanogaster  [normal bristles and grey body (s+s, e+ e)] with a mutant fly [short bristles and ebony body (ss ee)] produces following p

Determine the acidity in the given sample of honey, Q. Determine the acidit...

Q. Determine the acidity in the given sample of honey? This activity will help you to: • carry out the acidity test of the given samples of honey, • learn about the kee

Timber, what is cup shake?

what is cup shake?

Explain characteristics that make breastfeeding beneficial, Explain charact...

Explain characteristics that make breastfeeding beneficial to the infant? We have listed some characteristics that make breastfeeding beneficial to the infant: • Mature milk

Determine immunodeficiency presented by aids patients, What is the cause of...

What is the cause of the immunodeficiency presented by AIDS patients? The cause of the immunodeficiency shown by AIDS patients is the destruction of CD4 T helper lymphocytes by

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