WINE AND BEER QUIZ

The potential spoilage organism in beer is

Saccharomyces diastaticus

S. carlsbergensis

S. lactis

S. cerevisiae

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Most important species of vinegar bacteria causing sliminess is

Lactobacillus lactis

Saccharomyces carlsbergiensis

Acetobacter aceti

None of these

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Sarcina sickness of beer is caused by

Zygomonas anaeroium

Pedicoccus cerevisiae

S. carlsbergensis

Saccharomyces cerevisiae

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S. patorianns can cause

ester like taste in beer

stringent taste in beer

cloudiness in beer

bitter taste

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Gassiness resulting from the liberation of carbon dioxide by hetero fermentative lactics is called

none of these

pousse

amertume

mannitic

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The Sarcina sickness of beer, caused by Pedicoccus cerevisiae, is characterized by

all of these

turbidity

sourness

popiness

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A special beer yeast of the bottom type is

S. carlsbergensis

S. cerevisiae

S. thermophillus

none of these

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The spoilage most commonly occurring in wine is tourne which refers to

acid formation from aldehyde and ketones

None of these

both (a) and (b)

acid formation from sugars, glucose and fructose

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Heavy, thick, slimy film of bacteria in the slow process of vinegar manufacture reduces

the rate of acetification

the rate of purification

the rate of hydrogenation

the rate of esterification

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When the fermentation of fructose results in the bitter product mannitol, the fermentation is sometime termed as-

mannkic

none of these

mannitic

amertume

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