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Heated Canned Foods

Heated Canned Foods
High acid foods with a pH above 5.3 are especially subjected to

flat sour spoilage
putrefaction
TA spoilage
both (a) and (b)

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Heated Canned Foods
High acid foods with a pH < 3.7 undergo spoilage by

Saccharolytic anaerobe
both (a) and (b)
do not undergo spoilage by microorganisms
B. coagulans

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Heated Canned Foods
Flat sour spoilage of acid foods is caused by

B. pepo
B. coagulans
both (a) and (b)
B. stearothermophillus

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Heated Canned Foods
The butyric acid type of fermentation in acid or medium acid foods, with swelling of the container by the carbon dioxide and hydrogen gas is caused by

C. pasteurianum
C. butyricum
both (a) and (b)
C. sporogenes

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Heated Canned Foods
The canned acid foods such as pineapple, tomatoes and pears have been found spoiled by C. pasteurianum. Such spoilage is more likely when the pH of the food is

<5.3
<4.5
>5.3
>4.5

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Heated Canned Foods
Sulfur stinker spoilage, caused by is uncommonly found in

low acid foods
any of these
medium acid foods
high acid foods

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