Gums And Mucilages

Question 1

Carrageenan source

Answer 1

Chondrus crispus (Irish moss)

Question 2

Carrageenan types

Answer 2

Kappa
Lota
Lambda
Mu
Epsilon

Question 3

How does carrageenan differ from agar.

Answer 3

Carrageenan has high sulfate and ash content

Question 4

Which of the carrageenan does not jellify but soluble in cold water

Answer 4

Lambda carrageenan

Question 5

Which of the carrageenan is able to form thermo reversible gels

Answer 5

Kappa and Lota

Question 6

Which carbohydrates were isolated by Stanford

Answer 6

Carrageenan and Algin/Alginate

Question 7

Alginates are obtained from…..

Answer 7

Brown seaweed from Laminaria and Ascophyllum species

Question 8

Constituents of alginic acid

Answer 8

D-mannuronic acid and D-glucuronic acid

Question 9

Which carbohydrate is insoluble in cold water and most organic solvents but slightly in hot water

Answer 9

Alginic acid

Question 10

What is the principle component of pectin

Answer 10

Galacturonic acid

Question 11

Pectin can act as a laxative because……

Answer 11

It binds substances to stool increasing the bulk

Question 12

Gums and mucilages for gels / viscous fluids because……

Answer 12

They contain hydrophilic molecules that can combine with water.

Question 13

Difference between gums and mucilages?

Answer 13

Gums are pathological products while mucilages are normal metabolic products.