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

Author Question: What is the science behind removing the water in a food to preserve it? What will be an ideal ... (Read 64 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Aug 2, 2018
What is the science behind removing the water in a food to preserve it?
 
  What will be an ideal response?

Question 2

How could the information in a food composition database be useful to someone with diabetes?
 
  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

Mholman93

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Aug 2, 2018
Answer to Question 1

Bacteria, yeast, mold, and enzymatic reactions need water. Drying removes the water from the food so bacteria, yeast, and mold cannot grow and spoil the food. Drying also slows down the action of enzymes.

Water activity (Aw) is used in many cases as a critical control point for Hazard Analysis and Critical Control Points (HACCP) programs. Samples of the food product are periodically taken from the production area and tested to ensure water activity values are within a specified range for food quality and safety. Higher Aw substances tend to support more microorganisms. Bacteria usually require at least 0.91, and fungi at least 0.7 . Dehydration lowers the Aw.

Answer to Question 2

Depending on the database used the total carbohydrates or sugars for a food can used to guide a selection of food least likely to cause blood glucose to rapidly rise after consumption.


mynx

  • Member
  • Posts: 555
Reply 2 on: Aug 2, 2018
Excellent

lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

The movement of air and water in sandy soil. The movement of air and water in sandy soil.
Lake position in the landscape and proportion of water received as groundwater (data from Webster et Lake position in the landscape and proportion of water received as groundwater (data from Webster et
(A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene (A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene
Diagram of the food chain Diagram of the food chain
Louis Comfort Tiffany, Tiffany Studios, Water-lily table lamp. Louis Comfort Tiffany, Tiffany Studios, Water-lily table lamp.
How water is used in homes How water is used in homes
Video: Krebs cycle : Formation of acetyl coenzyme A and Electron transport chain

For a complete list of videos, visit our video library