This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain the principle of freeze-drying. What will be an ideal ... (Read 78 times)

eruditmonkey@yahoo.com

  • Hero Member
  • *****
  • Posts: 546
on: Aug 2, 2018
Explain the principle of freeze-drying.
 
  What will be an ideal response?

Question 2

What is ultrafiltration?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

verrinzo

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Aug 2, 2018
Answer to Question 1

The principle of freeze-drying is that under conditions of low vapor pressure (a vacuum), water evaporates from ice without the ice melting.

Answer to Question 2

Ultrafiltration is a membrane filtration process operating at 2 to 10 bars (international unit of pressure equal to 29.531 in. of mercury at 32F) pressure and allowing molecules the size of salts and sugars to pass through the membrane pores, while molecules of the size of proteins are rejected.


eruditmonkey@yahoo.com

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Aug 2, 2018
Thanks


verrinzo

  • Sr. Member
  • ****
  • Posts: 346
Reply #3 on: Aug 2, 2018
Welcome :)


« previous next »
 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Overload Principle Overload Principle
A pharmacist can explain to a patient why medication may look different and ensure the correct ... A pharmacist can explain to a patient why medication may look different and ensure the correct ...
The Number of Children Americans Think Are Ideal The Number of Children Americans Think Are Ideal
Principle Structures of the Limbic System Principle Structures of the Limbic System
Mechanisms to Explain the Effects of Massage Mechanisms to Explain the Effects of Massage
The Principle of Isostasy The Principle of Isostasy
Video: Cavernous Sinus Larynx Middle Ear Orbit: Granulesm Animation

For a complete list of videos, visit our video library