session 2-5 Flashcards

1
Q

what are three basic sensory analysis tests

A

Discriminative, affective, descriptive

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2
Q

The most important sensory attribute of the product is a type of question you may be asked in a

A

descriptive test

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3
Q

Is this product acceptable is a – type of questions

A

Affective

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4
Q

Sensory evaluation emerged as a scientific discipline in the

A

1940

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5
Q

The main objective of affective sensory test is describing product characteristics (true of false)

A

false

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6
Q

Stimulus is:

A

stimulus if any activator that causes a response in a receptor

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7
Q

Receptors are:

A

receptors are stimuli detecting cells of the sense organ

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8
Q

sensation is:

A

sensation is detection of a stimulus from the environment

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9
Q

perception is:

A

perception is the interpretation of sensation

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10
Q

masking colour is usually

A

unsuccessful

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11
Q

Trigeminal is

A

Trigeminal is not a part of taste or smell

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12
Q

how many olfactory receptors are there?

A

20x10^6

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13
Q

olfactory sensitivity range over

A

10^12

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14
Q

what precent of moderately sniffed air reaches the olfactory sensors at the back of the nasal cavity

A

10%

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15
Q

what two sensation are sensed by our trigeminal nerve

A

mouthfeel and carbonation

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16
Q

Sensory attribute are expressed as a

A

continuum

17
Q

appearance is

A

an important aspect of sensory

18
Q

flavour =

A

taste, aroma, mouthfeel

19
Q

SSPR

A

stimulus - sensation - perception - response

20
Q

1 SRM =

A

2.5 EBC

21
Q

particles in beer invisible to the human eye are measured by light

A

scattering at 90 degree angle

22
Q

beer gushing can be caused by

A

over carbonation, calcium oxalate, fusarium

23
Q

Adaptation (Fatigue, Cross-adaptation and Cross-potentiation), Enhancement, Suppression and Synergy

A

physiological factors are:

24
Q

Psychological factors are:

A

Psychological factors: Expectation error, Error of habituation, Stimulus error, Logical error, Halo effect, Order of sample presentation (Contrast effect, Group effect, Error of central tendency, Pattern effect, Time error/positional bias), Mutual suggestion, Lack of motivation, Capriciousness vs. Timidity

25
Q

Enhancement is:

A

Enhancement is the effect of one substance increasing the perceived intensity of another substance presented simultaneously. the effect of one substance increasing the perceived intensity of another substance presented simultaneously.

26
Q

Stimulus error is:

A

Psychological factors is caused by irrelevant criteria influencing the observer and suggesting difference

27
Q

Decrease in sensitivity to a given stimulus as result of continued exposure to that stimulus

A

Adaptation

28
Q

mixture suppression is:

A

one substance decreasing the perceived intensity of

a mixture of two or more substances