Determine major aspects of the mechanism of freeze drying, Biology

Assignment Help:

Determine Major Aspects of the Mechanism of Freeze Drying?

The major aspects of the mechanism of freeze drying are: 

(a) The removal of vapour from the subliming ice front within the material, 

(b) The removal of vapour from between the food particles, 

(c) The supply of heat to the food particles, 

(d) The supply of heat to the ice within the food particles 

The conventional freeze drying unit consists of a vacuum chamber into which trays of the material to be dried can be placed, and a source for supplying heat to the material so that the sublimation process can be accelerated. The usual method is to arrange the trays on or between the heated plates, which are either electrically heated or internally heated with steam. The vacuum is produced either with a mechanical pump, suitable steam ejectors, or refrigerated condensers.


Related Discussions:- Determine major aspects of the mechanism of freeze drying

What is sanning membrane proteins, Which of the following is true for the f...

Which of the following is true for the following spanning membrane proteins? A. The mAChR (muscarinic Acetylcholine Receptor) is a spanning membrane protein located in the memb

Agro industrial-iodine, Iodine Iodine functions are essential componen...

Iodine Iodine functions are essential components of the thyroid hormones thyroxine (T 4) and triiodothyronine (T3), which regulate the rate of energy metabolism. Absorbed iodi

Explain procedure for capsule staining in a culture, Explain Procedure for ...

Explain Procedure for Capsule Staining in a Culture? We have learnt that Capsule staining can be undertaken either by negative staining or Anthony method. Now carry out the exe

Glucagon and glucocorticoids, Important  aspects  related to regulation inc...

Important  aspects  related to regulation include: 1)  The hormones glucagon and glucocorticoids  which are  secreted  during  starvation stimulate  glucose-6-phosphatase to en

Explain the food applications of locust bean gum, Food Applications of Locu...

Food Applications of Locust bean gum Locust bean gum has multiple applications in food industry.  Let us focus on a few of the important ones: Locust bean gum has been u

Fruits, how to do write the assaigment in botany give idea

how to do write the assaigment in botany give idea

Does ph affect the enzyme activity, Q. Does pH affect the enzyme activity? ...

Q. Does pH affect the enzyme activity? The concentrations of hydrogen ions in solution affect the enzyme activity. Each enzyme has utmost efficiency under an optimum p H . S

Patients with mild mitral regurgitation, Q. Patients with mild mitral regur...

Q. Patients with mild mitral regurgitation? Patients with mild mitral regurgitation and normal left ventricular size and function do well long term, However, those with severe

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