Texture Analysis

Question 1

Shear thinning fluids

Answer 1

Ketchup
Lotion
Toothpaste
Greek yogurt
Whipped cream

Question 2

Shear thickening fluids

Answer 2

Oobleck (corn starch + water)
Water saturated sand
Propylene glycol
Ethylene glycol

Question 3

Brookfield viscometer

Answer 3

Rotate sensing element in a fluid
Measure torque necessary to overcome resistance to movement

Question 4

Rheometer

Answer 4

Material placed between 2 plates
Bottom plate moves at fixed speed
Torsional force on top plate is measured
Newtoinan and non newtonian fluids

Question 5

Two bite test

Answer 5

Samples compressed twice using texture analyzer
Provide insight into how samples behave when chewed

Question 6

Info from two bite test

Answer 6

Hardness
Adhesiveness
Gumminess
Chewiness
Springiness
Crumbliness