CCS CCS Sensory Evaluation & Food Analysis 2

Question 1

What does water activity (Aw) measure in food science?

Accepted Answer

The ratio of water vapor pressure in a food to that of pure water

Answer

Water activity measures the ratio of the vapor pressure of water in a food to that of pure water at the same temperature, indicating water available for microbial growth.

Question 2

Which sensory panel type uses highly trained evaluators who can identify and quantify specific attributes on intensity scales?

Accepted Answer

Descriptive analysis panel

Answer

A descriptive analysis panel consists of trained evaluators who use standardized language and intensity references to identify and quantify specific sensory attributes.

Question 3

The Brix scale measures what property in food analysis?

Accepted Answer

Total dissolved soluble solids (primarily sugars)

Answer

The Brix scale measures the percentage of dissolved sucrose (soluble solids) in a liquid, commonly used for fruit juices, syrups, and jams.

Question 4

Which off-flavor is primarily associated with lipid oxidation in stored food products?

Accepted Answer

Rancidity

Answer

Rancidity is caused by lipid oxidation producing aldehydes, ketones, and free fatty acids that create unpleasant tastes and odors in fat-containing foods.

Question 5

Umami, recognized as the fifth basic taste, is primarily associated with which compound?

Accepted Answer

Glutamate (as in monosodium glutamate)

Answer

Umami is the savory fifth basic taste stimulated by glutamate and certain nucleotides, found naturally in aged cheeses, mushrooms, tomatoes, and meat.

(CCS) Certified Culinary Scientist Practice Test

(CCS) Certified Culinary Scientist Practice Test

CCS CCS Sensory Evaluation & Food Analysis 2