Experiment 3 - study on flavor development of fruits

Question 1

flavor

Answer 1

sensory impression of food determined mainly ny chemical senses of taste and smell

Question 2

sensory assessment of flavors

Answer 2

for documentation of flavor and aroma characteristics and the sensations resulting from a single or combination of chemicals

provides measure of the potency of flavor

Question 3

formula for odor units

Answer 3

odor units = conc present/threshold concentration

Question 4

conc range where half the panelists detect the compound

Answer 4

flavor threshold

Question 5

molecular mechanisms of flavor perception

Answer 5

1. reception
2. transduction
3. neural processing

Question 6

what are sweet-tasting molecules called

Answer 6

glycophore

Question 7

theory suggests that the spatial arrangement of atoms interacting with tongue receptors is triangular

Answer 7

AH-B-ƴ theory

Question 8

functional groups that bind to partially negative atoms

Answer 8

AH+

Question 9

functional groups that bind to partially positive atoms

Answer 9

B-

Question 10

Y area

Answer 10

interacts via hydrophobic interactions with the tongue receptors

Question 11

bitter molecules need what to cause a bitter taste

Answer 11

a non-polar and polar group

Question 12

strongly influences bitterness

Answer 12

stereochemistry

Question 13

most bitter compounds are what

Answer 13

alkaloids

Question 14

what causes salty taste

Answer 14

cations

Question 15

modify salty taste

Answer 15

anions

Question 16

sour taste substances contain

Answer 16

at least one proton that is dissociable im water

Question 17

perceived through taste receptors that respond to the presence of glutamates

Answer 17

umami

Question 18

dryness in the mouth and coarse puckering of the oral tissue

Answer 18

astringency

Question 19

astringency results from the

Answer 19

association of tannins and polyphenols with proteins in the saliva to form aggregates

Question 20

can break the peptide bonds and coagulate protein milks

Answer 20

proteolytic enzymes